chore: bump version

Reviewed-on: #36

CHANGELOG.md

@@ -0,0 +1,93 @@
+### [2026-06-20] v0.2.0 (Stable)
+
+**What's Changed:**
+
+* Fixed the issue that cause app crashing
+* Added screener for new message requests
+* Added request messages screen
+* Added contact list screen
+
+---
+
+### [2026-06-12] v0.1.9 (Pre-Release)
+
+**What's Changed:**
+
+* Fixed the issue that cause app crashing
+* Added relay management
+
+---
+
+### [2026-06-09] v0.1.8 (Pre-Release)
+
+**What's Changed:**
+
+* Added support for NIP-55 (use external signer like Amber)
+
+---
+
+### [2026-06-07] v0.1.7 (Pre-Release)
+
+**What's Changed:**
+
+* Added a screen for update profile
+* Fixed occasional splash screen hang
+* Improved the battery usage in background
+
+---
+
+### [2026-06-04] v0.1.6 (Pre-Release)
+
+**What's Changed:**
+
+* Added self chat
+* Fixed empty chat rooms on refreshes
+* Fixed crash on startup
+
+---
+
+### [2026-06-03] v0.1.5 (Pre-Release)
+
+**What's Changed:**
+
+* Added crash report screen
+* Added notification permission banner
+* Fixed navigation issues after create or import identity
+
+---
+
+### [2026-06-01] v0.1.4 (Pre-Release)
+
+**What's Changed:**
+
+* Added the deep link to allow user open chat screen directly via notification
+* Fixed the issue cause app crash if room has no member
+* Improve stability and performance
+
+---
+
+### [2026-05-29] v0.1.3 (Pre-Release)
+
+**What's Changed:**
+
+* Added basic notification when the app in background
+* Redesign the splash screen
+* Redesign the onboarding screen
+* Improved UX for the new identity creation and import screen
+* Fixed some issues cause app crashes
+
+---
+
+### [2026-05-24] v0.1.2 (Pre-Release)
+
+**What's Changed:**
+
+* Fixed the issue that cause app crash when open new chat room via QR
+
+---
+
+### [2026-05-23] v0.1.1 (Pre-Release)
+
+**What's Changed:**
+
+* Fixed the issue that cause app crash on startup

composeApp/build.gradle.kts

@@ -24,9 +24,9 @@ kotlin {
             implementation(libs.jetbrains.navigation3.ui)
             implementation(libs.jetbrains.lifecycle.viewmodelNavigation3)
             implementation(libs.androidx.core.splashscreen)
-            implementation("su.reya:nostr-sdk-kmp:0.3.1")
+            implementation("su.reya:nostr-sdk-kmp:0.3.2")
-            implementation("io.coil-kt.coil3:coil-compose:3.4.0")
+            implementation("io.coil-kt.coil3:coil-compose:3.5.0")
-            implementation("io.coil-kt.coil3:coil-network-okhttp:3.4.0")
+            implementation("io.coil-kt.coil3:coil-network-okhttp:3.5.0")
             implementation("io.github.kalinjul.easyqrscan:scanner:0.7.0")
             implementation("io.github.alexzhirkevich:qrose:1.1.2")
         }
@@ -69,7 +69,7 @@ android {
         minSdk = libs.versions.android.minSdk.get().toInt()
         targetSdk = libs.versions.android.targetSdk.get().toInt()
         versionCode = 1
-        versionName = "0.2.0"
+        versionName = "0.2.3"
     }
     packaging {
         resources {

composeApp/src/androidMain/AndroidManifest.xml

@@ -36,7 +36,8 @@
         <activity
             android:name=".MainActivity"
             android:exported="true"
-            android:theme="@style/Theme.App.Starting">
+            android:theme="@style/Theme.App.Starting"
+            android:windowSoftInputMode="adjustResize">
 
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

composeApp/src/androidMain/composeResources/drawable/ic_add_circle.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M440,680L520,680L520,520L680,520L680,440L520,440L520,280L440,280L440,440L280,440L280,520L440,520L440,680ZM480,880Q397,880 324,848.5Q251,817 197,763Q143,709 111.5,636Q80,563 80,480Q80,397 111.5,324Q143,251 197,197Q251,143 324,111.5Q397,80 480,80Q563,80 636,111.5Q709,143 763,197Q817,251 848.5,324Q880,397 880,480Q880,563 848.5,636Q817,709 763,763Q709,817 636,848.5Q563,880 480,880ZM480,800Q614,800 707,707Q800,614 800,480Q800,346 707,253Q614,160 480,160Q346,160 253,253Q160,346 160,480Q160,614 253,707Q346,800 480,800ZM480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Z" />
+</vector>

composeApp/src/androidMain/composeResources/drawable/ic_audio.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M280,720L280,240L360,240L360,720L280,720ZM440,880L440,80L520,80L520,880L440,880ZM120,560L120,400L200,400L200,560L120,560ZM600,720L600,240L680,240L680,720L600,720ZM760,560L760,400L840,400L840,560L760,560Z" />
+</vector>

composeApp/src/androidMain/kotlin/su/reya/coop/AndroidExternalSigner.kt

@@ -6,6 +6,8 @@ import android.content.Intent
 import androidx.core.net.toUri
 import rust.nostr.sdk.PublicKey
 import rust.nostr.sdk.UnsignedEvent
+import su.reya.coop.nostr.ExternalSignerHandler
+import su.reya.coop.nostr.ExternalSignerResult
 
 class AndroidExternalSigner(
     private val context: Context,

composeApp/src/androidMain/kotlin/su/reya/coop/App.kt

@@ -34,7 +34,8 @@ import androidx.navigation3.runtime.entryProvider
 import androidx.navigation3.runtime.rememberNavBackStack
 import androidx.navigation3.runtime.rememberSaveableStateHolderNavEntryDecorator
 import androidx.navigation3.ui.NavDisplay
-import su.reya.coop.screens.ChatScreen
+import su.reya.coop.repository.ErrorRepository
+import su.reya.coop.screens.chat.ChatScreen
 import su.reya.coop.screens.ContactListScreen
 import su.reya.coop.screens.HomeScreen
 import su.reya.coop.screens.ImportScreen
@@ -47,11 +48,22 @@ import su.reya.coop.screens.RelayScreen
 import su.reya.coop.screens.RequestListScreen
 import su.reya.coop.screens.ScanScreen
 import su.reya.coop.screens.UpdateProfileScreen
+import su.reya.coop.viewmodel.AuthViewModel
+import su.reya.coop.viewmodel.ChatViewModel
+import su.reya.coop.viewmodel.NostrViewModel
 
 val LocalNostrViewModel = staticCompositionLocalOf<NostrViewModel> {
     error("No NostrViewModel provided")
 }
 
+val LocalChatViewModel = staticCompositionLocalOf<ChatViewModel> {
+    error("No ChatViewModel provided")
+}
+
+val LocalAuthViewModel = staticCompositionLocalOf<AuthViewModel> {
+    error("No AuthViewModel provided")
+}
+
 val LocalSnackbarHostState = staticCompositionLocalOf<SnackbarHostState> {
     error("No SnackbarHostState provided")
 }
@@ -66,14 +78,20 @@ val LocalScanResult = staticCompositionLocalOf<QrScanResult> {
 
 @OptIn(ExperimentalMaterial3ExpressiveApi::class, ExperimentalMaterial3Api::class)
 @Composable
-fun App(viewModel: NostrViewModel) {
+fun App(
+    nostrViewModel: NostrViewModel,
+    chatViewModel: ChatViewModel,
+    authViewModel: AuthViewModel,
+) {
     val context = LocalContext.current
     val activity = context as? ComponentActivity
     val backStack = rememberNavBackStack(Screen.Home)
     val navigator = remember(backStack) { Navigator(backStack) }
     val qrScanResult = remember { QrScanResult() }
 
-    val signerRequired by viewModel.signerRequired.collectAsStateWithLifecycle()
+    // Get the signer required state
+    val authState by authViewModel.state.collectAsStateWithLifecycle()
+    val signerRequired = authState.signerRequired
 
     // Snackbar
     val snackbarHostState = remember { SnackbarHostState() }
@@ -100,7 +118,7 @@ fun App(viewModel: NostrViewModel) {
     }
 
     LaunchedEffect(Unit) {
-        viewModel.errorEvents.collect { message ->
+        ErrorRepository.errors.collect { message ->
             snackbarHostState.showSnackbar(message)
         }
     }
@@ -143,11 +161,14 @@ fun App(viewModel: NostrViewModel) {
         motionScheme = MotionScheme.expressive(),
     ) {
         CompositionLocalProvider(
-            LocalNostrViewModel provides viewModel,
+            LocalNostrViewModel provides nostrViewModel,
+            LocalChatViewModel provides chatViewModel,
+            LocalAuthViewModel provides authViewModel,
             LocalSnackbarHostState provides snackbarHostState,
             LocalNavigator provides navigator,
             LocalScanResult provides qrScanResult,
         ) {
+
             NavDisplay(
                 backStack = backStack,
                 onBack = {

composeApp/src/androidMain/kotlin/su/reya/coop/MainActivity.kt

@@ -10,10 +10,13 @@ import androidx.activity.enableEdgeToEdge
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.activity.viewModels
 import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
-import androidx.lifecycle.ProcessLifecycleOwner
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
 import su.reya.coop.coop.storage.SecretStore
+import su.reya.coop.nostr.NostrManager
+import su.reya.coop.viewmodel.AuthViewModel
+import su.reya.coop.viewmodel.ChatViewModel
+import su.reya.coop.viewmodel.NostrViewModel
 import kotlin.system.exitProcess
 
 class MainActivity : ComponentActivity() {
@@ -21,16 +24,33 @@ class MainActivity : ComponentActivity() {
         val externalSignerLauncher = ExternalSignerLauncher()
     }
 
-    private val viewModel: NostrViewModel by viewModels {
+    private val factory by lazy {
         object : ViewModelProvider.Factory {
+            private val androidSigner =
+                AndroidExternalSigner(this@MainActivity, externalSignerLauncher)
+            private val secretStore = SecretStore(this@MainActivity)
+            private val nostrViewModel =
+                NostrViewModel(NostrManager.instance)
+            private val chatViewModel =
+                ChatViewModel(NostrManager.instance)
+            private val authViewModel =
+                AuthViewModel(NostrManager.instance, secretStore, androidSigner)
+
             override fun <T : ViewModel> create(modelClass: Class<T>): T {
-                val secretStore = SecretStore(this@MainActivity)
+                return when {
-                val androidSigner = AndroidExternalSigner(this@MainActivity, externalSignerLauncher)
+                    modelClass.isAssignableFrom(NostrViewModel::class.java) -> nostrViewModel
-                return NostrViewModel(NostrManager.instance, secretStore, androidSigner) as T
+                    modelClass.isAssignableFrom(ChatViewModel::class.java) -> chatViewModel
+                    modelClass.isAssignableFrom(AuthViewModel::class.java) -> authViewModel
+                    else -> throw IllegalArgumentException("Unknown ViewModel class")
+                } as T
             }
         }
     }
 
+    private val nostrViewModel: NostrViewModel by viewModels { factory }
+    private val chatViewModel: ChatViewModel by viewModels { factory }
+    private val authViewModel: AuthViewModel by viewModels { factory }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         Thread.setDefaultUncaughtExceptionHandler { thread, throwable ->
             throwable.printStackTrace()
@@ -68,17 +88,19 @@ class MainActivity : ComponentActivity() {
 
         // Keep the splash screen visible until the signer check is complete
         splashScreen.setKeepOnScreenCondition {
-            viewModel.signerRequired.value == null
+            authViewModel.state.value.signerRequired == null
         }
 
-        // Bind the lifecycle of the ViewModel to the Activity's lifecycle'
-        viewModel.bindLifecycle(ProcessLifecycleOwner.get().lifecycle)
-
         setContent {
-            App(viewModel = viewModel)
+            App(
+                nostrViewModel = nostrViewModel,
+                chatViewModel = chatViewModel,
+                authViewModel = authViewModel,
+            )
         }
     }
 
+
     override fun onNewIntent(intent: Intent) {
         super.onNewIntent(intent)
         setIntent(intent)

composeApp/src/androidMain/kotlin/su/reya/coop/NostrForegroundService.kt

@@ -20,6 +20,7 @@ import kotlinx.coroutines.Job
 import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.cancel
 import kotlinx.coroutines.launch
+import su.reya.coop.nostr.NostrManager
 import java.io.File
 
 private const val GROUP_KEY_MESSAGES = "su.reya.coop.MESSAGES"
@@ -65,18 +66,17 @@ class NostrForegroundService : Service() {
                 } catch (e: Exception) {
                     throw IllegalStateException("Failed to initialize Nostr Client", e)
                 }
+
                 // Connect to bootstrap relays
                 nostr.connectBootstrapRelays()
+
                 // Handle notifications
                 nostr.handleNotifications(
                     onMetadataUpdate = { pubkey, metadata ->
-                        serviceScope.launch { nostr.emitMetadataUpdate(pubkey, metadata) }
+                        serviceScope.launch { nostr.profiles.emitMetadataUpdate(pubkey, metadata) }
                     },
                     onContactListUpdate = { contacts ->
-                        serviceScope.launch { nostr.emitContactListUpdate(contacts) }
+                        serviceScope.launch { nostr.profiles.emitContactListUpdate(contacts) }
-                    },
-                    onSubscriptionClose = {
-                        serviceScope.launch { nostr.emitSubscriptionClosed() }
                     },
                     onNewMessage = { event ->
                         serviceScope.launch {

composeApp/src/androidMain/kotlin/su/reya/coop/screens/ChatScreen.kt

@@ -1,563 +0,0 @@
-package su.reya.coop.screens
-
-import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.IntrinsicSize
-import androidx.compose.foundation.layout.PaddingValues
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.aspectRatio
-import androidx.compose.foundation.layout.fillMaxHeight
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.widthIn
-import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.items
-import androidx.compose.foundation.lazy.rememberLazyListState
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.Badge
-import androidx.compose.material3.BadgedBox
-import androidx.compose.material3.Button
-import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi
-import androidx.compose.material3.FilledTonalButton
-import androidx.compose.material3.FilledTonalIconButton
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
-import androidx.compose.material3.IconButtonDefaults
-import androidx.compose.material3.LoadingIndicator
-import androidx.compose.material3.MaterialShapes
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Scaffold
-import androidx.compose.material3.SnackbarHost
-import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
-import androidx.compose.material3.TextField
-import androidx.compose.material3.TextFieldDefaults
-import androidx.compose.material3.TopAppBar
-import androidx.compose.material3.TopAppBarDefaults
-import androidx.compose.material3.toShape
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.derivedStateOf
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableIntStateOf
-import androidx.compose.runtime.mutableStateListOf
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.text.style.TextAlign
-import androidx.compose.ui.unit.dp
-import androidx.lifecycle.compose.collectAsStateWithLifecycle
-import coop.composeapp.generated.resources.Res
-import coop.composeapp.generated.resources.ic_arrow_back
-import coop.composeapp.generated.resources.ic_cancel
-import coop.composeapp.generated.resources.ic_check_circle
-import coop.composeapp.generated.resources.ic_send
-import kotlinx.coroutines.launch
-import org.jetbrains.compose.resources.painterResource
-import rust.nostr.sdk.PublicKey
-import rust.nostr.sdk.Timestamp
-import rust.nostr.sdk.UnsignedEvent
-import su.reya.coop.LocalNavigator
-import su.reya.coop.LocalNostrViewModel
-import su.reya.coop.LocalSnackbarHostState
-import su.reya.coop.Room
-import su.reya.coop.Screen
-import su.reya.coop.formatAsGroupHeader
-import su.reya.coop.humanReadable
-import su.reya.coop.roomId
-import su.reya.coop.shared.Avatar
-import su.reya.coop.shared.getExpressiveFontFamily
-import su.reya.coop.shared.nameFlow
-import su.reya.coop.shared.pictureFlow
-import su.reya.coop.short
-
-@Composable
-fun ChatScreen(id: Long, screening: Boolean = false) {
-    val snackbarHostState = LocalSnackbarHostState.current
-    val navigator = LocalNavigator.current
-    val viewModel = LocalNostrViewModel.current
-
-    // Get chat room by ID
-    val chatRooms by viewModel.chatRooms.collectAsStateWithLifecycle()
-    val room by remember(id) { derivedStateOf { chatRooms.firstOrNull { it.id == id } } }
-
-    // Show empty screen
-    if (room == null) {
-        Box(
-            modifier = Modifier.fillMaxSize(),
-            contentAlignment = Alignment.Center
-        ) {
-            Text(
-                text = "Something went wrong.",
-                style = MaterialTheme.typography.titleMediumEmphasized,
-                color = MaterialTheme.colorScheme.onSurface
-            )
-        }
-        return
-    }
-
-    val displayName by remember(room) { room!!.nameFlow(viewModel) }.collectAsStateWithLifecycle("Loading...")
-    val picture by remember(room) { room!!.pictureFlow(viewModel) }.collectAsStateWithLifecycle(null)
-
-    var text by remember { mutableStateOf("") }
-    var loading by remember { mutableStateOf(true) }
-    var newOtherMessages by remember { mutableIntStateOf(0) }
-    var requireScreening by remember { mutableStateOf(screening) }
-
-    val listState = rememberLazyListState()
-    val messages = remember { mutableStateListOf<UnsignedEvent>() }
-
-    val groupedMessages = remember(messages.toList()) {
-        messages.groupBy { it.createdAt().formatAsGroupHeader() }
-    }
-
-    LaunchedEffect(id) {
-        // Start loading spinner
-        loading = true
-
-        // Get messages
-        val initialMessages = viewModel.getChatRoomMessages(id)
-        messages.clear()
-        messages.addAll(initialMessages)
-
-        // Stop loading spinner
-        loading = false
-
-        // Get msg relays for each member
-        viewModel.chatRoomConnect(id)
-
-        // Handle new messages
-        viewModel.newEvents.collect { event ->
-            if (event.roomId() == id) {
-                if (event.id() !in messages.map { it.id() }) {
-                    messages.add(0, event)
-                }
-            } else {
-                // If the event is not in the current room, it's a new message from another user
-                newOtherMessages++
-            }
-        }
-    }
-
-    LaunchedEffect(messages.size) {
-        if (messages.isNotEmpty()) {
-            listState.animateScrollToItem(0)
-        }
-    }
-
-    Scaffold(
-        containerColor = MaterialTheme.colorScheme.surfaceContainer,
-        snackbarHost = { SnackbarHost(snackbarHostState) },
-        topBar = {
-            TopAppBar(
-                title = {
-                    Row(
-                        verticalAlignment = Alignment.CenterVertically,
-                        modifier = Modifier.clickable {
-                            room!!.members.firstOrNull()?.let { pubkey ->
-                                navigator.navigate(Screen.Profile(pubkey.toBech32()))
-                            }
-                        }
-                    ) {
-                        if (loading) {
-                            LoadingIndicator(modifier = Modifier.size(32.dp))
-                        } else {
-                            Avatar(
-                                picture = picture,
-                                description = displayName,
-                                size = 32.dp,
-                            )
-                        }
-                        Spacer(modifier = Modifier.size(8.dp))
-                        Text(
-                            text = displayName,
-                            style = MaterialTheme.typography.titleMediumEmphasized,
-                        )
-                    }
-                },
-                navigationIcon = {
-                    BadgedBox(
-                        badge = {
-                            if (newOtherMessages > 0) {
-                                Badge {
-                                    Text(newOtherMessages.toString())
-                                }
-                            }
-                        }
-                    ) {
-                        IconButton(onClick = { navigator.goBack() }) {
-                            Icon(
-                                painter = painterResource(Res.drawable.ic_arrow_back),
-                                contentDescription = "Back"
-                            )
-                        }
-                    }
-                },
-                colors = TopAppBarDefaults.topAppBarColors(
-                    containerColor = MaterialTheme.colorScheme.surfaceContainer,
-                )
-            )
-        },
-        content = { innerPadding ->
-            Surface(
-                modifier = Modifier
-                    .fillMaxSize()
-                    .padding(top = innerPadding.calculateTopPadding()),
-                color = MaterialTheme.colorScheme.surface,
-                shape = RoundedCornerShape(topStart = 24.dp, topEnd = 24.dp),
-            ) {
-                Column(
-                    modifier = Modifier
-                        .fillMaxSize()
-                        .padding(bottom = innerPadding.calculateBottomPadding())
-                ) {
-                    if (requireScreening) {
-                        room?.let { ScreenerCard(it) }
-                    }
-
-                    when (messages.isNotEmpty()) {
-                        true -> {
-                            LazyColumn(
-                                modifier = Modifier
-                                    .weight(1f)
-                                    .fillMaxWidth(),
-                                contentPadding = PaddingValues(16.dp),
-                                reverseLayout = true,
-                                state = listState,
-                            ) {
-                                groupedMessages.forEach { (dateHeader, messagesInGroup) ->
-                                    items(
-                                        messagesInGroup,
-                                        key = { it.id()?.toBech32()!! }) { event ->
-                                        ChatMessage(event)
-                                    }
-                                    item {
-                                        DateSeparator(dateHeader)
-                                    }
-                                }
-                            }
-                        }
-
-                        false -> {
-                            Box(
-                                modifier = Modifier
-                                    .weight(1f)
-                                    .fillMaxWidth(),
-                                contentAlignment = Alignment.Center
-                            ) {
-                                Column(
-                                    horizontalAlignment = Alignment.CenterHorizontally,
-                                    verticalArrangement = Arrangement.spacedBy(4.dp),
-                                ) {
-                                    Text(
-                                        text = "No messages yet",
-                                        style = MaterialTheme.typography.titleLargeEmphasized.copy(
-                                            fontWeight = FontWeight.SemiBold
-                                        ),
-                                        color = MaterialTheme.colorScheme.onSurface
-                                    )
-                                    Text(
-                                        text = "Your conversations will appear here.",
-                                        style = MaterialTheme.typography.bodyMedium,
-                                        color = MaterialTheme.colorScheme.outline
-                                    )
-                                }
-                            }
-                        }
-                    }
-
-                    when (requireScreening) {
-                        true -> {
-                            Row(
-                                modifier = Modifier
-                                    .fillMaxWidth()
-                                    .padding(16.dp),
-                                horizontalArrangement = Arrangement.spacedBy(8.dp),
-                            ) {
-                                Button(
-                                    onClick = { navigator.goBack() },
-                                    modifier = Modifier.weight(1f)
-                                ) {
-                                    Text(
-                                        text = "Reject",
-                                        style = MaterialTheme.typography.titleMedium,
-                                    )
-                                }
-                                FilledTonalButton(
-                                    onClick = { requireScreening = false },
-                                    modifier = Modifier.weight(1f)
-                                ) {
-                                    Text(
-                                        text = "Accept",
-                                        style = MaterialTheme.typography.titleMedium,
-                                    )
-                                }
-                            }
-                        }
-
-                        else -> {
-                            ChatInput(
-                                value = text,
-                                onValueChange = { text = it },
-                                onSend = {
-                                    viewModel.sendMessage(id, text)
-                                    text = ""
-                                }
-                            )
-                        }
-                    }
-                }
-            }
-        }
-    )
-}
-
-@OptIn(ExperimentalMaterial3ExpressiveApi::class)
-@Composable
-fun ScreenerCard(room: Room) {
-    val pubkey = room.members.firstOrNull() ?: return
-
-    val viewModel = LocalNostrViewModel.current
-    val scope = rememberCoroutineScope()
-
-    var isContact by remember { mutableStateOf(false) }
-    var mutualContacts by remember { mutableStateOf<Set<PublicKey>>(emptySet()) }
-    var lastActivity by remember { mutableStateOf<Timestamp?>(null) }
-
-    val metadataFlow = remember(pubkey) { viewModel.getMetadata(pubkey) }
-    val metadata by metadataFlow.collectAsStateWithLifecycle()
-
-    val profile = metadata?.asRecord()
-    val displayName = profile?.displayName ?: profile?.name ?: "No name"
-    val picture = profile?.picture
-
-    LaunchedEffect(pubkey) {
-        scope.launch {
-            // Check contact
-            viewModel.verifyContact(pubkey).let { isContact = it }
-            // Get mutual contacts
-            viewModel.mutualContacts(pubkey).let { mutualContacts = it }
-            // Get the last activity
-            viewModel.verifyActivity(pubkey)?.let { lastActivity = it }
-        }
-    }
-
-    Column(
-        modifier = Modifier
-            .fillMaxWidth()
-            .padding(horizontal = 16.dp)
-            .padding(top = 48.dp),
-        verticalArrangement = Arrangement.spacedBy(8.dp),
-    ) {
-        Column(
-            modifier = Modifier.fillMaxWidth(),
-            verticalArrangement = Arrangement.spacedBy(8.dp),
-            horizontalAlignment = Alignment.CenterHorizontally,
-        ) {
-            Avatar(
-                picture = picture,
-                description = "Profile picture",
-                modifier = Modifier.size(120.dp),
-                shape = MaterialShapes.Cookie12Sided.toShape(),
-            )
-            Column(
-                verticalArrangement = Arrangement.spacedBy(4.dp),
-                horizontalAlignment = Alignment.CenterHorizontally,
-            ) {
-                Text(
-                    text = displayName,
-                    textAlign = TextAlign.Center,
-                    style = MaterialTheme.typography.titleLargeEmphasized.copy(
-                        fontFamily = getExpressiveFontFamily()
-                    ),
-                )
-                Text(
-                    text = pubkey.short(),
-                    textAlign = TextAlign.Center,
-                    style = MaterialTheme.typography.labelMedium,
-                    color = MaterialTheme.colorScheme.outline
-                )
-            }
-        }
-        Column(
-            modifier = Modifier.fillMaxWidth(),
-            verticalArrangement = Arrangement.spacedBy(4.dp),
-        ) {
-            Row(
-                modifier = Modifier.fillMaxWidth(),
-                verticalAlignment = Alignment.CenterVertically,
-                horizontalArrangement = Arrangement.spacedBy(8.dp),
-            ) {
-                Icon(
-                    painter = painterResource(
-                        if (isContact) Res.drawable.ic_check_circle else Res.drawable.ic_cancel
-                    ),
-                    contentDescription = "Warning",
-                    tint = if (isContact) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.error
-                )
-                Text(
-                    text = if (isContact) "Contact" else "Not a contact",
-                    style = MaterialTheme.typography.labelMediumEmphasized
-                )
-            }
-            Row(
-                modifier = Modifier.fillMaxWidth(),
-                verticalAlignment = Alignment.CenterVertically,
-                horizontalArrangement = Arrangement.spacedBy(8.dp),
-            ) {
-                Icon(
-                    painter = painterResource(
-                        if (mutualContacts.isNotEmpty()) Res.drawable.ic_check_circle else Res.drawable.ic_cancel
-                    ),
-                    contentDescription = "Warning",
-                    tint = if (mutualContacts.isNotEmpty()) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.error
-                )
-                Text(
-                    text = if (mutualContacts.isEmpty()) "No contacts in common" else "${mutualContacts.size} contacts in common",
-                    style = MaterialTheme.typography.labelMediumEmphasized
-                )
-            }
-            Row(
-                modifier = Modifier.fillMaxWidth(),
-                verticalAlignment = Alignment.CenterVertically,
-                horizontalArrangement = Arrangement.spacedBy(8.dp),
-            ) {
-                Icon(
-                    painter = painterResource(Res.drawable.ic_check_circle),
-                    contentDescription = "Warning",
-                    tint = if (lastActivity != null) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.outline
-                )
-                Text(
-                    text = if (lastActivity == null) "Don't have any public activities" else "Last activity at ${lastActivity?.humanReadable()}",
-                    style = MaterialTheme.typography.labelMediumEmphasized
-                )
-            }
-        }
-    }
-}
-
-@Composable
-fun DateSeparator(date: String) {
-    Box(
-        modifier = Modifier
-            .fillMaxWidth()
-            .padding(vertical = 16.dp),
-        contentAlignment = Alignment.Center
-    ) {
-        Text(
-            text = date,
-            style = MaterialTheme.typography.labelMedium,
-            color = MaterialTheme.colorScheme.outline
-        )
-    }
-}
-
-@Composable
-fun ChatMessage(
-    rumor: UnsignedEvent
-) {
-    val viewModel = LocalNostrViewModel.current
-    val currentUser = viewModel.currentUser()
-    val isMine = rumor.author() == currentUser
-
-    val bubbleShape = if (isMine) {
-        RoundedCornerShape(topStart = 20.dp, topEnd = 20.dp, bottomStart = 20.dp, bottomEnd = 4.dp)
-    } else {
-        RoundedCornerShape(topStart = 20.dp, topEnd = 20.dp, bottomStart = 4.dp, bottomEnd = 20.dp)
-    }
-
-    val containerColor =
-        if (isMine) MaterialTheme.colorScheme.primaryContainer else MaterialTheme.colorScheme.tertiaryContainer
-
-    val contentColor =
-        if (isMine) MaterialTheme.colorScheme.onPrimaryContainer else MaterialTheme.colorScheme.onTertiaryContainer
-
-    Box(
-        modifier = Modifier
-            .fillMaxWidth()
-            .padding(vertical = 4.dp),
-        contentAlignment = if (isMine) Alignment.CenterEnd else Alignment.CenterStart
-    ) {
-        Column(
-            horizontalAlignment = if (isMine) Alignment.End else Alignment.Start
-        ) {
-            Surface(
-                color = containerColor,
-                contentColor = contentColor,
-                shape = bubbleShape,
-                modifier = Modifier
-                    .widthIn(max = 280.dp)
-                    .clickable(
-                        onClick = {
-                            val id = rumor.id()
-                            if (id != null) {
-                                val sent = viewModel.isMessageSent(id)
-                                println("Sent: $sent")
-                            }
-                        }
-                    )
-            ) {
-                Text(
-                    text = rumor.content(),
-                    modifier = Modifier.padding(horizontal = 16.dp, vertical = 8.dp),
-                    style = MaterialTheme.typography.bodyMedium
-                )
-            }
-        }
-    }
-}
-
-@Composable
-fun ChatInput(
-    value: String,
-    onValueChange: (String) -> Unit,
-    onSend: () -> Unit
-) {
-    Surface(modifier = Modifier.fillMaxWidth()) {
-        Row(
-            modifier = Modifier
-                .padding(horizontal = 16.dp, vertical = 8.dp)
-                .height(IntrinsicSize.Min),
-            verticalAlignment = Alignment.Bottom
-        ) {
-            TextField(
-                value = value,
-                onValueChange = onValueChange,
-                placeholder = { Text("Message") },
-                shape = RoundedCornerShape(28.dp),
-                colors = TextFieldDefaults.colors(
-                    focusedIndicatorColor = Color.Transparent,
-                    unfocusedIndicatorColor = Color.Transparent
-                ),
-                modifier = Modifier.weight(1f)
-            )
-            Spacer(modifier = Modifier.size(8.dp))
-            FilledTonalIconButton(
-                onClick = onSend,
-                modifier = Modifier
-                    .fillMaxHeight()
-                    .aspectRatio(1f),
-                colors = IconButtonDefaults.filledTonalIconButtonColors(
-                    containerColor = MaterialTheme.colorScheme.surfaceVariant,
-                    contentColor = MaterialTheme.colorScheme.onSurfaceVariant
-                )
-            ) {
-                Icon(
-                    painter = painterResource(Res.drawable.ic_send),
-                    contentDescription = "Send"
-                )
-            }
-        }
-    }
-}

composeApp/src/androidMain/kotlin/su/reya/coop/screens/ContactListScreen.kt

@@ -3,11 +3,15 @@ package su.reya.coop.screens
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.foundation.text.KeyboardActions
 import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi
 import androidx.compose.material3.ExtendedFloatingActionButton
 import androidx.compose.material3.Icon
@@ -20,6 +24,7 @@ import androidx.compose.material3.Scaffold
 import androidx.compose.material3.SegmentedListItem
 import androidx.compose.material3.SnackbarHost
 import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
 import androidx.compose.material3.TooltipAnchorPosition
 import androidx.compose.material3.TooltipBox
 import androidx.compose.material3.TooltipDefaults
@@ -54,6 +59,7 @@ import kotlinx.coroutines.launch
 import org.jetbrains.compose.resources.painterResource
 import rust.nostr.sdk.Nip05Address
 import rust.nostr.sdk.PublicKey
+import su.reya.coop.LocalChatViewModel
 import su.reya.coop.LocalNavigator
 import su.reya.coop.LocalNostrViewModel
 import su.reya.coop.LocalSnackbarHostState
@@ -66,10 +72,12 @@ import su.reya.coop.short
 fun ContactListScreen() {
     val navigator = LocalNavigator.current
     val snackbarHostState = LocalSnackbarHostState.current
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
+    val chatViewModel = LocalChatViewModel.current
 
-    val contactList by viewModel.contactList.collectAsStateWithLifecycle()
+    val contactList by nostrViewModel.contactList.collectAsStateWithLifecycle()
     var openAddContactDialog by remember { mutableStateOf(false) }
+    var contactToDelete by remember { mutableStateOf<PublicKey?>(null) }
 
     Scaffold(
         containerColor = MaterialTheme.colorScheme.surfaceContainer,
@@ -128,43 +136,54 @@ fun ContactListScreen() {
             }
         },
         content = { innerPadding ->
-            Column(
+            if (contactList.isNotEmpty()) {
-                modifier = Modifier
+                val contacts = remember(contactList) { contactList.toList() }
-                    .fillMaxWidth()
+
-                    .padding(16.dp)
+                LazyColumn(
-                    .padding(innerPadding),
+                    modifier = Modifier
-                verticalArrangement = Arrangement.spacedBy(ListItemDefaults.SegmentedGap),
+                        .fillMaxSize()
-            ) {
+                        .padding(top = innerPadding.calculateTopPadding()),
-                if (contactList.isNotEmpty()) {
+                    contentPadding = PaddingValues(16.dp),
-                    contactList.forEachIndexed { index, pubkey ->
+                    verticalArrangement = Arrangement.spacedBy(ListItemDefaults.SegmentedGap),
+                ) {
+                    itemsIndexed(contacts) { index, pubkey ->
                         ContactListItem(
                             pubkey = pubkey,
                             index = index,
-                            total = contactList.size,
+                            total = contacts.size,
-                            onClick = {})
+                            onClick = {
+                                val room = chatViewModel.createChatRoom(listOf(pubkey))
+                                navigator.navigate(Screen.Chat(room))
+                            },
+                            onLongClick = {
+                                contactToDelete = pubkey
+                            }
+                        )
                     }
-                } else {
+                }
-                    Box(
+            } else {
-                        modifier = Modifier.fillMaxSize(),
+                Box(
-                        contentAlignment = Alignment.Center
+                    modifier = Modifier
+                        .fillMaxSize()
+                        .padding(innerPadding),
+                    contentAlignment = Alignment.Center
+                ) {
+                    Column(
+                        horizontalAlignment = Alignment.CenterHorizontally,
+                        verticalArrangement = Arrangement.spacedBy(4.dp),
                     ) {
-                        Column(
+                        Text(
-                            horizontalAlignment = Alignment.CenterHorizontally,
+                            text = "No contacts yet",
-                            verticalArrangement = Arrangement.spacedBy(4.dp),
+                            style = MaterialTheme.typography.titleLargeEmphasized.copy(
-                        ) {
+                                fontWeight = FontWeight.SemiBold
-                            Text(
+                            ),
-                                text = "No contacts yet",
+                            color = MaterialTheme.colorScheme.onSurface
-                                style = MaterialTheme.typography.titleLargeEmphasized.copy(
+                        )
-                                    fontWeight = FontWeight.SemiBold
+                        Text(
-                                ),
+                            text = "Your contacts will appear here",
-                                color = MaterialTheme.colorScheme.onSurface
+                            style = MaterialTheme.typography.bodyMedium,
-                            )
+                            color = MaterialTheme.colorScheme.outline
-                            Text(
+                        )
-                                text = "Your contacts will appear here",
-                                style = MaterialTheme.typography.bodyMedium,
-                                color = MaterialTheme.colorScheme.outline
-                            )
-                        }
                     }
                 }
             }
@@ -174,13 +193,36 @@ fun ContactListScreen() {
     if (openAddContactDialog) {
         AddContactDialog(onDismissRequest = { openAddContactDialog = false })
     }
+
+    if (contactToDelete != null) {
+        AlertDialog(
+            onDismissRequest = { contactToDelete = null },
+            title = { Text("Delete Contact") },
+            text = { Text("Are you sure you want to remove this contact?") },
+            confirmButton = {
+                TextButton(
+                    onClick = {
+                        contactToDelete?.let { nostrViewModel.removeContact(it) }
+                        contactToDelete = null
+                    }
+                ) {
+                    Text("Delete")
+                }
+            },
+            dismissButton = {
+                TextButton(onClick = { contactToDelete = null }) {
+                    Text("Cancel")
+                }
+            }
+        )
+    }
 }
 
 @OptIn(ExperimentalMaterial3ExpressiveApi::class)
 @Composable
 fun AddContactDialog(onDismissRequest: () -> Unit) {
     val snackbarHostState = LocalSnackbarHostState.current
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
     val focusRequester = remember { FocusRequester() }
     var contact by remember { mutableStateOf("") }
     var isError by remember { mutableStateOf(false) }
@@ -225,7 +267,7 @@ fun AddContactDialog(onDismissRequest: () -> Unit) {
                     actions = {
                         IconButton(onClick = {
                             scope.launch {
-                                val success = viewModel.addContact(contact)
+                                val success = nostrViewModel.addContact(contact)
                                 if (success) onDismissRequest()
                             }
                         }) {
@@ -282,34 +324,31 @@ fun ContactListItem(
     index: Int,
     total: Int = 0,
     onClick: () -> Unit,
+    onLongClick: () -> Unit,
 ) {
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
-    val metadataFlow = remember(pubkey) { viewModel.getMetadata(pubkey) }
+    val profileFlow = remember(pubkey) { nostrViewModel.getMetadata(pubkey) }
-    val metadata by metadataFlow.collectAsState(initial = null)
+    val profile by profileFlow.collectAsState(initial = null)
-
-    val profile = metadata?.asRecord()
-    val displayName = profile?.name ?: profile?.displayName ?: pubkey.short()
-    val picture = profile?.picture
 
     SegmentedListItem(
         onClick = onClick,
-        onLongClick = { viewModel.removeContact(pubkey) },
+        onLongClick = onLongClick,
         shapes = ListItemDefaults.segmentedShapes(
             index = index,
             count = total
         ),
         leadingContent = {
             Avatar(
-                picture = picture,
+                picture = profile?.picture,
-                description = displayName,
+                description = profile?.name,
                 size = 36.dp
             )
         },
-        supportingContent = { Text(text = pubkey.short()) },
+        supportingContent = { Text(pubkey.short()) },
         content = {
             Text(
-                text = displayName,
+                text = profile?.name ?: "No name",
-                style = MaterialTheme.typography.titleMediumEmphasized,
+                style = MaterialTheme.typography.titleMedium,
             )
         }
     )

composeApp/src/androidMain/kotlin/su/reya/coop/screens/HomeScreen.kt

@@ -60,7 +60,6 @@ import androidx.compose.material3.rememberTooltipState
 import androidx.compose.material3.toShape
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
@@ -87,10 +86,11 @@ import coop.composeapp.generated.resources.ic_new_chat
 import coop.composeapp.generated.resources.ic_qr
 import coop.composeapp.generated.resources.ic_request
 import coop.composeapp.generated.resources.ic_scanner
-import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.launch
 import org.jetbrains.compose.resources.painterResource
 import rust.nostr.sdk.PublicKey
+import su.reya.coop.LocalAuthViewModel
+import su.reya.coop.LocalChatViewModel
 import su.reya.coop.LocalNavigator
 import su.reya.coop.LocalNostrViewModel
 import su.reya.coop.LocalScanResult
@@ -99,11 +99,9 @@ import su.reya.coop.Room
 import su.reya.coop.RoomKind
 import su.reya.coop.Screen
 import su.reya.coop.ago
+import su.reya.coop.rememberUiState
 import su.reya.coop.shared.Avatar
 import su.reya.coop.shared.getExpressiveFontFamily
-import su.reya.coop.shared.nameFlow
-import su.reya.coop.shared.pictureFlow
-import su.reya.coop.short
 
 @OptIn(ExperimentalMaterial3ExpressiveApi::class, ExperimentalMaterial3Api::class)
 @Composable
@@ -113,22 +111,24 @@ fun HomeScreen() {
     val qrScanResult = LocalScanResult.current
     val snackbarHostState = LocalSnackbarHostState.current
     val clipboardManager = LocalClipboard.current
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
-
+    val chatViewModel = LocalChatViewModel.current
+    val authViewModel = LocalAuthViewModel.current
 
     val scope = rememberCoroutineScope()
     val sheetState = rememberModalBottomSheetState(true)
     val listState = rememberLazyListState()
     val pullToRefreshState = rememberPullToRefreshState()
 
-    val currentUser = viewModel.currentUser() ?: return
+    val userProfile by nostrViewModel.currentUserProfile.collectAsStateWithLifecycle()
-    val currentUserProfile = viewModel.getMetadata(currentUser)
+    val chatRooms by chatViewModel.chatRooms.collectAsStateWithLifecycle()
 
-    val userProfile by currentUserProfile.collectAsStateWithLifecycle()
+    val isRelayListEmpty by nostrViewModel.isRelayListEmpty.collectAsStateWithLifecycle()
-    val chatRooms by viewModel.chatRooms.collectAsStateWithLifecycle()
+    val isSyncing by chatViewModel.isSyncing.collectAsStateWithLifecycle()
-    val isRelayListEmpty by viewModel.isRelayListEmpty.collectAsStateWithLifecycle()
+    val isPartialProcessedGiftWrap by chatViewModel.isPartialProcessedGiftWrap.collectAsStateWithLifecycle()
-    val isPartialProcessedGiftWrap by viewModel.isPartialProcessedGiftWrap.collectAsState(initial = false)
+
-    val isBannerDismissed by viewModel.isNotificationBannerDismissed.collectAsState()
+    val authState by authViewModel.state.collectAsStateWithLifecycle()
+    val isBannerDismissed = authState.isNotificationBannerDismissed
 
     val expandedFab by remember { derivedStateOf { listState.firstVisibleItemIndex == 0 } }
     var showBottomSheet by remember { mutableStateOf(false) }
@@ -156,7 +156,7 @@ fun HomeScreen() {
     }
 
     LaunchedEffect(Unit) {
-        viewModel.getChatRooms()
+        chatViewModel.refreshChatRooms()
     }
 
     LaunchedEffect(qrScanResult.content) {
@@ -164,7 +164,7 @@ fun HomeScreen() {
             runCatching { PublicKey.parse(result) }
                 .onSuccess { pubkey ->
                     try {
-                        val roomId = viewModel.createChatRoom(listOf(pubkey))
+                        val roomId = chatViewModel.createChatRoom(listOf(pubkey))
                         navigator.navigate(Screen.Chat(roomId))
                     } catch (e: Exception) {
                         e.message?.let { snackbarHostState.showSnackbar(it) }
@@ -185,10 +185,18 @@ fun HomeScreen() {
                     containerColor = MaterialTheme.colorScheme.surfaceContainer,
                 ),
                 title = {
-                    Text(
+                    Row(
-                        text = "Coop",
+                        verticalAlignment = Alignment.CenterVertically,
-                        style = MaterialTheme.typography.titleMediumEmphasized
+                        horizontalArrangement = Arrangement.spacedBy(8.dp)
-                    )
+                    ) {
+                        Text(
+                            text = "Coop",
+                            style = MaterialTheme.typography.titleMediumEmphasized
+                        )
+                        if (isSyncing) {
+                            LoadingIndicator(modifier = Modifier.size(24.dp))
+                        }
+                    }
                 },
                 actions = {
                     // QR Scanner
@@ -201,8 +209,8 @@ fun HomeScreen() {
                     // User
                     IconButton(onClick = { showBottomSheet = true }) {
                         Avatar(
-                            picture = userProfile?.asRecord()?.picture,
+                            picture = userProfile?.picture,
-                            description = userProfile?.asRecord()?.displayName,
+                            description = userProfile?.name ?: "No name",
                             size = 32.dp,
                         )
                     }
@@ -272,7 +280,7 @@ fun HomeScreen() {
                                 horizontalArrangement = Arrangement.spacedBy(8.dp),
                             ) {
                                 TextButton(
-                                    onClick = { viewModel.dismissNotificationBanner() },
+                                    onClick = { authViewModel.dismissNotificationBanner() },
                                     modifier = Modifier.weight(1f),
                                 ) {
                                     Text(text = "Maybe later")
@@ -313,7 +321,7 @@ fun HomeScreen() {
                         onRefresh = {
                             scope.launch {
                                 isRefreshing = true
-                                viewModel.refreshChatRooms()
+                                chatViewModel.refreshChatRooms()
                                 isRefreshing = false
                             }
                         },
@@ -383,14 +391,6 @@ fun HomeScreen() {
             onDismissRequest = { showBottomSheet = false },
             sheetState = sheetState,
         ) {
-            val pubkey = viewModel.currentUser()
-            val shortPubkey = pubkey?.short() ?: "Not available"
-
-            val userName =
-                userProfile?.asRecord()?.displayName
-                    ?: userProfile?.asRecord()?.name
-                    ?: "No name"
-
             val dismissAndRun: (suspend () -> Unit) -> Unit = { action ->
                 scope.launch {
                     sheetState.hide()
@@ -415,8 +415,8 @@ fun HomeScreen() {
                         contentAlignment = Alignment.Center
                     ) {
                         Avatar(
-                            picture = userProfile?.asRecord()?.picture,
+                            picture = userProfile?.picture,
-                            description = userProfile?.asRecord()?.displayName,
+                            description = userProfile?.name ?: "No name",
                             shape = MaterialShapes.Cookie9Sided.toShape(),
                             modifier = Modifier.fillMaxSize()
                         )
@@ -426,7 +426,7 @@ fun HomeScreen() {
                         contentAlignment = Alignment.Center
                     ) {
                         Text(
-                            text = userName,
+                            text = userProfile?.name ?: "No name",
                             style = MaterialTheme.typography.titleLargeEmphasized,
                         )
                     }
@@ -437,16 +437,15 @@ fun HomeScreen() {
                         OutlinedButton(
                             onClick = {
                                 scope.launch {
-                                    pubkey?.let {
+                                    userProfile?.publicKey?.let {
                                         val bech32 = it.toBech32()
-                                        val data =
+                                        val data = ClipData.newPlainText(bech32, bech32)
-                                            ClipData.newPlainText(bech32, bech32)
                                         clipboardManager.setClipEntry(ClipEntry(data))
                                     }
                                 }
                             },
                         ) {
-                            Text(text = shortPubkey)
+                            Text(text = userProfile?.shortPublicKey ?: "Unknown")
                         }
                         FilledIconButton(
                             onClick = {
@@ -470,7 +469,7 @@ fun HomeScreen() {
     // Show the relay setup dialog if the msg relay list is empty
     if (isRelayListEmpty) {
         ModalBottomSheet(
-            onDismissRequest = { viewModel.dismissRelayWarning() },
+            onDismissRequest = { nostrViewModel.dismissRelayWarning() },
             sheetState = sheetState,
             containerColor = MaterialTheme.colorScheme.surfaceContainer,
         ) {
@@ -577,7 +576,7 @@ fun HomeScreen() {
                                 scope.launch {
                                     isBusy = true
                                     try {
-                                        viewModel.refetchMsgRelays(currentUser)
+                                        nostrViewModel.refetchMsgRelays()
                                     } catch (e: Exception) {
                                         snackbarHostState.showSnackbar("Failed to refresh metadata: ${e.message}")
                                     }
@@ -597,7 +596,7 @@ fun HomeScreen() {
                             enabled = !isBusy,
                             onClick = {
                                 scope.launch {
-                                    viewModel.useDefaultMsgRelayList()
+                                    nostrViewModel.useDefaultMsgRelayList()
                                     sheetState.hide()
                                 }
                             },
@@ -620,34 +619,29 @@ fun HomeScreen() {
 @Composable
 fun NewRequests(requests: List<Room>) {
     val navigator = LocalNavigator.current
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
 
     val total = requests.size
     val firstRoom = requests.getOrNull(0)
     val secondRoom = requests.getOrNull(1)
 
-    val firstName by remember(firstRoom) {
+    val firstRoomState by (firstRoom as Room).rememberUiState(nostrViewModel)
-        firstRoom?.nameFlow(viewModel) ?: flowOf("")
+    val secondRoomState by (secondRoom as Room).rememberUiState(nostrViewModel)
-    }.collectAsStateWithLifecycle("Loading...")
-
-    val secondName by remember(secondRoom) {
-        secondRoom?.nameFlow(viewModel) ?: flowOf("")
-    }.collectAsStateWithLifecycle("")
 
     val supportingText = when {
-        total == 1 && firstRoom != null -> {
+        total == 1 -> {
             val message = firstRoom.lastMessage ?: ""
-            "$firstName: $message"
+            "${firstRoomState.name}: $message"
         }
 
         total == 2 -> {
-            "$firstName and $secondName"
+            "${firstRoomState.name} and ${secondRoomState.name}"
         }
 
         total > 2 -> {
             val othersCount = total - 2
             val othersText = if (othersCount == 1) "1 other" else "$othersCount others"
-            "$firstName, $secondName and $othersText"
+            "${firstRoomState.name}, ${secondRoomState.name} and $othersText"
         }
 
         else -> ""
@@ -703,14 +697,13 @@ fun NewRequests(requests: List<Room>) {
 @OptIn(ExperimentalMaterial3ExpressiveApi::class)
 @Composable
 fun ChatRoom(room: Room, onClick: () -> Unit) {
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
-    val displayName by remember(room) { room.nameFlow(viewModel) }.collectAsStateWithLifecycle("Loading...")
+    val roomState by room.rememberUiState(nostrViewModel)
-    val picture by remember(room) { room.pictureFlow(viewModel) }.collectAsStateWithLifecycle(null)
 
     ListItem(
         modifier = Modifier.clickable(onClick = onClick),
         leadingContent = {
-            Avatar(picture = picture, description = displayName)
+            Avatar(picture = roomState.picture, description = roomState.picture)
         },
         headlineContent = {
             Row(
@@ -718,7 +711,7 @@ fun ChatRoom(room: Room, onClick: () -> Unit) {
                 verticalAlignment = Alignment.CenterVertically
             ) {
                 Text(
-                    text = displayName,
+                    text = roomState.name,
                     style = MaterialTheme.typography.titleMediumEmphasized,
                     modifier = Modifier.weight(1f)
                 )
@@ -732,7 +725,7 @@ fun ChatRoom(room: Room, onClick: () -> Unit) {
         supportingContent = {
             if (!room.lastMessage.isNullOrBlank()) {
                 Text(
-                    text = room.lastMessage!!,
+                    text = room.lastMessage ?: "",
                     style = MaterialTheme.typography.bodyMedium,
                     overflow = TextOverflow.Ellipsis,
                     maxLines = 1,
@@ -751,7 +744,9 @@ fun BottomMenuList(
     onDismiss: (suspend () -> Unit) -> Unit
 ) {
     val navigator = LocalNavigator.current
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
+    val chatViewModel = LocalChatViewModel.current
+    val authViewModel = LocalAuthViewModel.current
 
     val defaultMenuList = listOf(
         "Update Profile" to { navigator.navigate(Screen.UpdateProfile) },
@@ -781,7 +776,14 @@ fun BottomMenuList(
         }
         Spacer(modifier = Modifier.size(16.dp))
         FilledTonalButton(
-            onClick = { viewModel.logout() },
+            onClick = {
+                onDismiss {
+                    authViewModel.logout(onLogout = {
+                        nostrViewModel.resetInternalState()
+                        chatViewModel.resetInternalState()
+                    })
+                }
+            },
             colors = ButtonDefaults.filledTonalButtonColors(
                 containerColor = MaterialTheme.colorScheme.error,
                 contentColor = MaterialTheme.colorScheme.onError

composeApp/src/androidMain/kotlin/su/reya/coop/screens/ImportScreen.kt

@@ -58,6 +58,7 @@ import org.jetbrains.compose.resources.painterResource
 import rust.nostr.sdk.Keys
 import rust.nostr.sdk.NostrConnectUri
 import rust.nostr.sdk.PublicKey
+import su.reya.coop.LocalAuthViewModel
 import su.reya.coop.LocalNavigator
 import su.reya.coop.LocalNostrViewModel
 import su.reya.coop.LocalScanResult
@@ -65,7 +66,6 @@ import su.reya.coop.LocalSnackbarHostState
 import su.reya.coop.Screen
 import su.reya.coop.shared.Avatar
 import su.reya.coop.shared.getExpressiveFontFamily
-import su.reya.coop.short
 
 @OptIn(ExperimentalMaterial3ExpressiveApi::class)
 @Composable
@@ -74,37 +74,35 @@ fun ImportScreen() {
     val navigator = LocalNavigator.current
     val qrScanResult = LocalScanResult.current
     val focusManager = LocalFocusManager.current
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
+    val authViewModel = LocalAuthViewModel.current
 
     val scope = rememberCoroutineScope()
 
-    val isBusy by viewModel.isBusy.collectAsStateWithLifecycle(false)
+    val authState by authViewModel.state.collectAsStateWithLifecycle()
+    val isBusy = authState.isBusy
     var secret by remember { mutableStateOf("") }
     var pubkey by remember { mutableStateOf<PublicKey?>(null) }
 
-    // Get metadata when pubkey changes
+    val profile by remember(pubkey) {
-    val metadata by remember(pubkey) {
+        pubkey?.let(nostrViewModel::getMetadata) ?: flowOf(null)
-        pubkey?.let(viewModel::getMetadata) ?: flowOf(null)
     }.collectAsStateWithLifecycle(null)
 
-    val profile = metadata?.asRecord()
-    val displayName = profile?.displayName ?: profile?.name ?: pubkey?.short() ?: "Unknown"
-    val picture = profile?.picture
-
     LaunchedEffect(qrScanResult.content) {
         qrScanResult.content?.let { result ->
             runCatching {
-                if (result.startsWith("nsec")) {
+                if (result.startsWith("nsec1")) {
                     Keys.parse(result)
                 } else if (result.startsWith("bunker://")) {
                     NostrConnectUri.parse(result)
                 } else {
-                    throw IllegalArgumentException("Invalid secret: $result")
+                    throw IllegalArgumentException("Unsupported secret format")
                 }
+            }.onSuccess {
+                secret = result
+            }.onFailure { e ->
+                snackbarHostState.showSnackbar("Invalid secret: ${e.message}")
             }
-                .onSuccess { it -> secret = result }
-                .onFailure { e -> println("Failed to parse QR: ${e.message}") }
-
             // Clear the nav state
             qrScanResult.clear()
         }
@@ -163,7 +161,7 @@ fun ImportScreen() {
                         contentAlignment = Alignment.Center
                     ) {
                         Avatar(
-                            picture = picture,
+                            picture = profile?.picture,
                             description = "Profile picture",
                             modifier = Modifier.fillMaxSize(),
                             shape = MaterialShapes.Cookie9Sided.toShape(),
@@ -171,7 +169,7 @@ fun ImportScreen() {
                     }
                     Spacer(modifier = Modifier.size(8.dp))
                     Text(
-                        text = displayName,
+                        text = profile?.name ?: "",
                         textAlign = TextAlign.Center,
                         style = MaterialTheme.typography.titleLargeEmphasized.copy(
                             fontFamily = getExpressiveFontFamily()
@@ -245,10 +243,10 @@ fun ImportScreen() {
                             onClick = {
                                 scope.launch {
                                     if (pubkey == null) {
-                                        viewModel.verifyIdentity(secret).let { pubkey = it }
+                                        authViewModel.verifyIdentity(secret).let { pubkey = it }
                                     } else {
                                         // Import the identity
-                                        viewModel.importIdentity(secret)
+                                        authViewModel.importIdentity(secret)
                                         // Navigate to the home screen
                                         navigator.navigate(Screen.Home)
                                     }

composeApp/src/androidMain/kotlin/su/reya/coop/screens/MyQrScreen.kt

@@ -13,8 +13,10 @@ import androidx.compose.material3.SnackbarHost
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import coop.composeapp.generated.resources.Res
 import coop.composeapp.generated.resources.ic_arrow_back
 import io.github.alexzhirkevich.qrose.rememberQrCodePainter
@@ -27,8 +29,8 @@ import su.reya.coop.LocalSnackbarHostState
 fun MyQrScreen() {
     val navigator = LocalNavigator.current
     val snackbarHostState = LocalSnackbarHostState.current
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
-    val currentUser = viewModel.currentUser() ?: return
+    val currentUser by nostrViewModel.currentUserProfile.collectAsStateWithLifecycle()
 
     Scaffold(
         snackbarHost = { SnackbarHost(snackbarHostState) },
@@ -59,7 +61,7 @@ fun MyQrScreen() {
                 horizontalAlignment = Alignment.CenterHorizontally,
             ) {
                 Image(
-                    painter = rememberQrCodePainter(currentUser.toBech32()),
+                    painter = rememberQrCodePainter(currentUser?.publicKey?.toBech32() ?: ""),
                     contentDescription = "My QR"
                 )
             }

composeApp/src/androidMain/kotlin/su/reya/coop/screens/NewChatScreen.kt

@@ -46,6 +46,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.SolidColor
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import coop.composeapp.generated.resources.Res
 import coop.composeapp.generated.resources.ic_arrow_back
 import coop.composeapp.generated.resources.ic_arrow_next
@@ -54,6 +55,7 @@ import coop.composeapp.generated.resources.ic_scanner
 import kotlinx.coroutines.delay
 import org.jetbrains.compose.resources.painterResource
 import rust.nostr.sdk.PublicKey
+import su.reya.coop.LocalChatViewModel
 import su.reya.coop.LocalNavigator
 import su.reya.coop.LocalNostrViewModel
 import su.reya.coop.LocalScanResult
@@ -69,13 +71,15 @@ fun NewChatScreen() {
     val snackbarHostState = LocalSnackbarHostState.current
     val navigator = LocalNavigator.current
     val qrScanResult = LocalScanResult.current
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
+    val chatViewModel = LocalChatViewModel.current
+
+    val contactList by nostrViewModel.contactList.collectAsStateWithLifecycle()
+    var query by remember { mutableStateOf("") }
 
-    val contactList by viewModel.contactList.collectAsState(initial = emptySet())
     val createGroup = remember { mutableStateOf(false) }
     val searchResults = remember { mutableStateListOf<PublicKey>() }
     val selectedReceivers = remember { mutableStateListOf<PublicKey>() }
-    var query by remember { mutableStateOf("") }
 
     LaunchedEffect(query) {
         if (query.length >= 3) {
@@ -92,12 +96,12 @@ fun NewChatScreen() {
                     selectedReceivers.add(pubkey)
                 }
             } else if (query.contains("@")) {
-                val pubkey = viewModel.searchByAddress(query)
+                val pubkey = nostrViewModel.searchByAddress(query)
                 if (pubkey != null) {
                     selectedReceivers.add(pubkey)
                 }
             } else {
-                val results = viewModel.searchByNostr(query)
+                val results = nostrViewModel.searchByNostr(query)
                 searchResults.clear()
                 searchResults.addAll(results)
             }
@@ -109,14 +113,13 @@ fun NewChatScreen() {
     LaunchedEffect(qrScanResult.content) {
         qrScanResult.content?.let { result ->
             // Verify the content
-            runCatching { PublicKey.parse(result) }
+            runCatching {
-                .onSuccess { pubkey ->
+                PublicKey.parse(result)
-                    selectedReceivers.add(pubkey)
+            }.onSuccess { pubkey ->
-                }
+                selectedReceivers.add(pubkey)
-                .onFailure { e ->
+            }.onFailure { e ->
-                    println("Failed to parse QR: ${e.message}")
+                snackbarHostState.showSnackbar("Invalid address: ${e.message}")
-                }
+            }
-
             // Clear the nav state
             qrScanResult.clear()
         }
@@ -168,7 +171,7 @@ fun NewChatScreen() {
                 ) {
                     ExtendedFloatingActionButton(
                         onClick = {
-                            val roomId = viewModel.createChatRoom(selectedReceivers.toList())
+                            val roomId = chatViewModel.createChatRoom(selectedReceivers.toList())
                             navigator.navigate(Screen.Chat(roomId))
                         },
                         expanded = false,
@@ -259,7 +262,7 @@ fun NewChatScreen() {
                             items = searchResults,
                             selectedReceivers = selectedReceivers,
                             onContactClick = { pubkey ->
-                                val roomId = viewModel.createChatRoom(listOf(pubkey))
+                                val roomId = chatViewModel.createChatRoom(listOf(pubkey))
                                 navigator.navigate(Screen.Chat(roomId))
                             },
                         )
@@ -270,7 +273,7 @@ fun NewChatScreen() {
                             items = contactList.toList(),
                             selectedReceivers = selectedReceivers,
                             onContactClick = { pubkey ->
-                                val roomId = viewModel.createChatRoom(listOf(pubkey))
+                                val roomId = chatViewModel.createChatRoom(listOf(pubkey))
                                 navigator.navigate(Screen.Chat(roomId))
                             }
                         )
@@ -287,13 +290,9 @@ fun ReceiverChip(
     pubkey: PublicKey,
     onRemove: () -> Unit
 ) {
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
-    val metadataFlow = remember(pubkey) { viewModel.getMetadata(pubkey) }
+    val profileFlow = remember(pubkey) { nostrViewModel.getMetadata(pubkey) }
-    val metadata by metadataFlow.collectAsState(initial = null)
+    val profile by profileFlow.collectAsState(initial = null)
-
-    val profile = metadata?.asRecord()
-    val displayName = profile?.name ?: profile?.displayName ?: pubkey.short()
-    val picture = profile?.picture
 
     CompositionLocalProvider(LocalMinimumInteractiveComponentSize provides 0.dp) {
         InputChip(
@@ -301,7 +300,7 @@ fun ReceiverChip(
             onClick = onRemove,
             label = {
                 Text(
-                    text = displayName,
+                    text = profile?.name ?: "No name",
                     style = MaterialTheme.typography.bodyMedium.copy(
                         fontWeight = FontWeight.SemiBold
                     )
@@ -309,8 +308,8 @@ fun ReceiverChip(
             },
             avatar = {
                 Avatar(
-                    picture = picture,
+                    picture = profile?.picture,
-                    description = displayName,
+                    description = profile?.name ?: "No name",
                     size = 24.dp
                 )
             },
@@ -373,13 +372,9 @@ fun ContactListItem(
     onClick: () -> Unit,
     onLongClick: () -> Unit
 ) {
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
-    val metadataFlow = remember(pubkey) { viewModel.getMetadata(pubkey) }
+    val profileFlow = remember(pubkey) { nostrViewModel.getMetadata(pubkey) }
-    val metadata by metadataFlow.collectAsState(initial = null)
+    val profile by profileFlow.collectAsState(initial = null)
-
-    val profile = metadata?.asRecord()
-    val displayName = profile?.name ?: profile?.displayName ?: pubkey.short()
-    val picture = profile?.picture
 
     SegmentedListItem(
         selected = isSelected,
@@ -391,15 +386,15 @@ fun ContactListItem(
         ),
         leadingContent = {
             Avatar(
-                picture = picture,
+                picture = profile?.picture,
-                description = displayName,
+                description = profile?.name ?: "",
                 size = 36.dp
             )
         },
         supportingContent = { Text(text = pubkey.short()) },
         content = {
             Text(
-                text = displayName,
+                text = profile?.name ?: "",
                 style = MaterialTheme.typography.titleMediumEmphasized,
             )
         }

composeApp/src/androidMain/kotlin/su/reya/coop/screens/NewIdentityScreen.kt

@@ -5,17 +5,19 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import kotlinx.coroutines.launch
+import su.reya.coop.LocalAuthViewModel
 import su.reya.coop.LocalNavigator
-import su.reya.coop.LocalNostrViewModel
 import su.reya.coop.Screen
 import su.reya.coop.shared.ProfileEditor
 
 @Composable
 fun NewIdentityScreen() {
-    val viewModel = LocalNostrViewModel.current
+    val authViewModel = LocalAuthViewModel.current
     val navigator = LocalNavigator.current
     val scope = rememberCoroutineScope()
-    val isBusy by viewModel.isBusy.collectAsStateWithLifecycle(false)
+
+    val authState by authViewModel.state.collectAsStateWithLifecycle()
+    val isBusy = authState.isBusy
 
     ProfileEditor(
         title = "Create a new identity",
@@ -24,7 +26,7 @@ fun NewIdentityScreen() {
         onBack = { navigator.goBack() },
         onConfirm = { name, bio, bytes, type ->
             scope.launch {
-                viewModel.createIdentity(name, bio, bytes, type)
+                authViewModel.createIdentity(name, bio, bytes, type)
                 navigator.navigate(Screen.Home)
             }
         }

composeApp/src/androidMain/kotlin/su/reya/coop/screens/OnboardingScreen.kt

@@ -45,8 +45,8 @@ import coop.composeapp.generated.resources.Res
 import coop.composeapp.generated.resources.coop
 import kotlinx.coroutines.launch
 import org.jetbrains.compose.resources.painterResource
+import su.reya.coop.LocalAuthViewModel
 import su.reya.coop.LocalNavigator
-import su.reya.coop.LocalNostrViewModel
 import su.reya.coop.LocalSnackbarHostState
 import su.reya.coop.Screen
 import su.reya.coop.shared.getExpressiveFontFamily
@@ -57,7 +57,7 @@ fun OnboardingScreen() {
     val context = LocalContext.current
     val snackbarHostState = LocalSnackbarHostState.current
     val navigator = LocalNavigator.current
-    val viewModel = LocalNostrViewModel.current
+    val authViewModel = LocalAuthViewModel.current
     val scope = rememberCoroutineScope()
 
     val logoPainter = painterResource(Res.drawable.coop)
@@ -158,9 +158,9 @@ fun OnboardingScreen() {
                             FilledTonalButton(
                                 onClick = {
                                     scope.launch {
-                                        if (viewModel.isExternalSignerAvailable()) {
+                                        if (authViewModel.isExternalSignerAvailable()) {
                                             try {
-                                                viewModel.connectExternalSigner()
+                                                authViewModel.connectExternalSigner()
                                                 navigator.navigate(Screen.Home)
                                             } catch (e: Exception) {
                                                 e.message?.let { snackbarHostState.showSnackbar(it) }

composeApp/src/androidMain/kotlin/su/reya/coop/screens/ProfileScreen.kt

@@ -44,6 +44,7 @@ import coop.composeapp.generated.resources.ic_share
 import kotlinx.coroutines.launch
 import org.jetbrains.compose.resources.painterResource
 import rust.nostr.sdk.PublicKey
+import su.reya.coop.LocalChatViewModel
 import su.reya.coop.LocalNavigator
 import su.reya.coop.LocalNostrViewModel
 import su.reya.coop.LocalSnackbarHostState
@@ -55,27 +56,27 @@ import su.reya.coop.short
 @OptIn(ExperimentalMaterial3ExpressiveApi::class)
 @Composable
 fun ProfileScreen(pubkey: String) {
+    val pubkey = runCatching { PublicKey.parse(pubkey) }.getOrNull() ?: return
+
     val context = LocalContext.current
     val snackbarHostState = LocalSnackbarHostState.current
     val navigator = LocalNavigator.current
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
+    val chatViewModel = LocalChatViewModel.current
     val scope = rememberCoroutineScope()
 
-    val pubkey = runCatching { PublicKey.parse(pubkey) }.getOrNull() ?: return
+    val profileFlow = remember(pubkey) { nostrViewModel.getMetadata(pubkey) }
+    val profile by profileFlow.collectAsStateWithLifecycle()
 
-    val metadataFlow = remember(pubkey) { viewModel.getMetadata(pubkey) }
+    val metadata = profile?.metadata?.asRecord()
-    val metadata by metadataFlow.collectAsStateWithLifecycle()
+    val nip05 = metadata?.nip05 ?: pubkey.short()
-
+    val picture = metadata?.picture
-    val profile = metadata?.asRecord()
-    val displayName = profile?.displayName ?: profile?.name ?: "No name"
-    val nip05 = profile?.nip05 ?: pubkey.short()
-    val picture = profile?.picture
 
     val details = remember(profile) {
         listOf(
-            "Username:" to (profile?.name ?: "None"),
+            "Username:" to (metadata?.name ?: "None"),
-            "Website:" to (profile?.website ?: "None"),
+            "Website:" to (metadata?.website ?: "None"),
-            "₿ Lightning Address:" to (profile?.lud16 ?: "None"),
+            "₿ Lightning Address:" to (metadata?.lud16 ?: "None"),
         )
     }
 
@@ -133,7 +134,7 @@ fun ProfileScreen(pubkey: String) {
                         verticalArrangement = Arrangement.spacedBy(4.dp),
                     ) {
                         Text(
-                            text = displayName,
+                            text = profile?.name ?: "No name",
                             textAlign = TextAlign.Center,
                             style = MaterialTheme.typography.titleLargeEmphasized.copy(
                                 fontFamily = getExpressiveFontFamily()
@@ -159,7 +160,8 @@ fun ProfileScreen(pubkey: String) {
                                 onClick = {
                                     scope.launch {
                                         try {
-                                            val roomId = viewModel.createChatRoom(listOf(pubkey))
+                                            val roomId =
+                                                chatViewModel.createChatRoom(listOf(pubkey))
                                             navigator.navigate(Screen.Chat(roomId))
                                         } catch (e: Exception) {
                                             e.message?.let { snackbarHostState.showSnackbar(it) }

composeApp/src/androidMain/kotlin/su/reya/coop/screens/RelayScreen.kt

@@ -74,7 +74,7 @@ import su.reya.coop.LocalSnackbarHostState
 fun RelayScreen() {
     val navigator = LocalNavigator.current
     val snackbarHostState = LocalSnackbarHostState.current
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
 
     val scope = rememberCoroutineScope()
     val msgRelayList = remember { mutableStateListOf<RelayUrl>() }
@@ -96,8 +96,8 @@ fun RelayScreen() {
     var relayToDelete by remember { mutableStateOf<String?>(null) }
 
     LaunchedEffect(Unit) {
-        relayList.putAll(viewModel.currentUserRelayList())
+        relayList.putAll(nostrViewModel.currentUserRelayList())
-        msgRelayList.addAll(viewModel.currentUserMsgRelayList())
+        msgRelayList.addAll(nostrViewModel.currentUserMsgRelayList())
     }
 
     Scaffold(
@@ -321,11 +321,11 @@ fun RelayScreen() {
                                 return@launch
                             }
                             try {
-                                viewModel.removeMsgRelay(relayToDelete!!)
+                                nostrViewModel.removeMsgRelay(relayToDelete!!)
                                 msgRelayList.removeIf { it.toString() == relayToDelete }
                                 relayToDelete = null
                             } catch (e: Exception) {
-                                snackbarHostState.showSnackbar("Failed to remove relay")
+                                snackbarHostState.showSnackbar("Failed to remove relay: ${e.message}")
                             }
                         }
                     }
@@ -349,7 +349,7 @@ fun AddRelayDialog(
     onMsgRelayAdded: (newRelay: String) -> Unit,
     onRelayAdded: (newRelay: String, metadata: RelayMetadata?) -> Unit,
 ) {
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
     val snackbarHostState = LocalSnackbarHostState.current
 
     val scope = rememberCoroutineScope()
@@ -401,17 +401,17 @@ fun AddRelayDialog(
                                 if (!isError) {
                                     when (selected) {
                                         "Messaging" -> {
-                                            viewModel.addMsgRelay(relayAddress)
+                                            nostrViewModel.addMsgRelay(relayAddress)
                                             onMsgRelayAdded(relayAddress)
                                         }
 
                                         "Inbox" -> {
-                                            viewModel.addInboxRelay(relayAddress)
+                                            nostrViewModel.addInboxRelay(relayAddress)
                                             onRelayAdded(relayAddress, RelayMetadata.WRITE)
                                         }
 
                                         "Outbox" -> {
-                                            viewModel.addOutboxRelay(relayAddress)
+                                            nostrViewModel.addOutboxRelay(relayAddress)
                                             onRelayAdded(relayAddress, RelayMetadata.READ)
                                         }
                                     }

composeApp/src/androidMain/kotlin/su/reya/coop/screens/RequestListScreen.kt

@@ -37,8 +37,8 @@ import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import coop.composeapp.generated.resources.Res
 import coop.composeapp.generated.resources.ic_arrow_back
 import kotlinx.coroutines.launch
+import su.reya.coop.LocalChatViewModel
 import su.reya.coop.LocalNavigator
-import su.reya.coop.LocalNostrViewModel
 import su.reya.coop.LocalSnackbarHostState
 import su.reya.coop.RoomKind
 import su.reya.coop.Screen
@@ -48,14 +48,14 @@ import su.reya.coop.Screen
 fun RequestListScreen() {
     val navigator = LocalNavigator.current
     val snackbarHostState = LocalSnackbarHostState.current
-    val viewModel = LocalNostrViewModel.current
+    val chatViewModel = LocalChatViewModel.current
 
     val scope = rememberCoroutineScope()
     val listState = rememberLazyListState()
     val pullToRefreshState = rememberPullToRefreshState()
 
     var isRefreshing by remember { mutableStateOf(false) }
-    val chatRooms by viewModel.chatRooms.collectAsStateWithLifecycle()
+    val chatRooms by chatViewModel.chatRooms.collectAsStateWithLifecycle()
 
     // Get all request rooms
     val requests = remember(chatRooms) {
@@ -103,7 +103,7 @@ fun RequestListScreen() {
                     onRefresh = {
                         scope.launch {
                             isRefreshing = true
-                            viewModel.refreshChatRooms()
+                            chatViewModel.refreshChatRooms()
                             isRefreshing = false
                         }
                     },

composeApp/src/androidMain/kotlin/su/reya/coop/screens/ScanScreen.kt

@@ -5,16 +5,15 @@ import androidx.compose.foundation.Canvas
 import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.CenterAlignedTopAppBar
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.SnackbarHost
 import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBar
 import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
@@ -44,10 +43,10 @@ fun ScanScreen() {
     Scaffold(
         snackbarHost = { SnackbarHost(snackbarHostState) },
         topBar = {
-            TopAppBar(
+            CenterAlignedTopAppBar(
                 title = {
                     Text(
-                        text = "Scan QR",
+                        text = "Scan a Nostr Address",
                         style = MaterialTheme.typography.titleMediumEmphasized
                     )
                 },
@@ -97,14 +96,6 @@ fun ScanScreen() {
                     .align(Alignment.Center)
                     .border(2.dp, Color.White, RoundedCornerShape(12.dp))
             )
-            Text(
-                text = "Scan a Nostr address",
-                style = MaterialTheme.typography.titleSmallEmphasized,
-                color = Color.White,
-                modifier = Modifier
-                    .align(Alignment.BottomCenter)
-                    .padding(bottom = 64.dp)
-            )
         }
     }
 }

composeApp/src/androidMain/kotlin/su/reya/coop/screens/UpdateProfileScreen.kt

@@ -1,7 +1,6 @@
 package su.reya.coop.screens
 
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
@@ -12,15 +11,13 @@ import su.reya.coop.shared.ProfileEditor
 
 @Composable
 fun UpdateProfileScreen() {
-    val viewModel = LocalNostrViewModel.current
+    val nostrViewModel = LocalNostrViewModel.current
     val navigator = LocalNavigator.current
     val scope = rememberCoroutineScope()
 
-    val currentUser = viewModel.currentUser() ?: return
+    val isBusy by nostrViewModel.isBusy.collectAsStateWithLifecycle(false)
-    val metadata by viewModel.getMetadata(currentUser).collectAsState(initial = null)
+    val currentUser by nostrViewModel.currentUserProfile.collectAsStateWithLifecycle()
-    val isBusy by viewModel.isBusy.collectAsStateWithLifecycle(false)
+    val profile = currentUser?.metadata?.asRecord()
-
-    val profile = metadata?.asRecord()
 
     ProfileEditor(
         title = "Update profile",
@@ -32,7 +29,7 @@ fun UpdateProfileScreen() {
         onBack = { navigator.goBack() },
         onConfirm = { name, bio, bytes, type ->
             scope.launch {
-                viewModel.updateProfile(name, bio, bytes, type)
+                nostrViewModel.updateProfile(name, bio, bytes, type)
                 navigator.goBack()
             }
         }

composeApp/src/androidMain/kotlin/su/reya/coop/screens/chat/ChatComponents.kt

@@ -0,0 +1,177 @@
+package su.reya.coop.screens.chat
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialShapes
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.toShape
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import coop.composeapp.generated.resources.Res
+import coop.composeapp.generated.resources.ic_cancel
+import coop.composeapp.generated.resources.ic_check_circle
+import kotlinx.coroutines.launch
+import org.jetbrains.compose.resources.painterResource
+import rust.nostr.sdk.PublicKey
+import rust.nostr.sdk.Timestamp
+import su.reya.coop.LocalNostrViewModel
+import su.reya.coop.Room
+import su.reya.coop.humanReadable
+import su.reya.coop.shared.Avatar
+import su.reya.coop.shared.getExpressiveFontFamily
+import su.reya.coop.short
+
+@OptIn(ExperimentalMaterial3ExpressiveApi::class)
+@Composable
+fun ScreenerCard(room: Room) {
+    val pubkey = room.members.firstOrNull() ?: return
+
+    val nostrViewModel = LocalNostrViewModel.current
+    val scope = rememberCoroutineScope()
+
+    var isContact by remember { mutableStateOf(false) }
+    var mutualContacts by remember { mutableStateOf<Set<PublicKey>>(emptySet()) }
+    var lastActivity by remember { mutableStateOf<Timestamp?>(null) }
+
+    val profileFlow = remember(pubkey) { nostrViewModel.getMetadata(pubkey) }
+    val profile by profileFlow.collectAsStateWithLifecycle()
+
+    LaunchedEffect(pubkey) {
+        scope.launch {
+            // Check contact
+            nostrViewModel.verifyContact(pubkey).let { isContact = it }
+            // Get mutual contacts
+            nostrViewModel.mutualContacts(pubkey).let { mutualContacts = it }
+            // Get the last activity
+            nostrViewModel.verifyActivity(pubkey)?.let { lastActivity = it }
+        }
+    }
+
+    Column(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(horizontal = 16.dp)
+            .padding(top = 48.dp),
+        verticalArrangement = Arrangement.spacedBy(8.dp),
+    ) {
+        Column(
+            modifier = Modifier.fillMaxWidth(),
+            verticalArrangement = Arrangement.spacedBy(8.dp),
+            horizontalAlignment = Alignment.CenterHorizontally,
+        ) {
+            Avatar(
+                picture = profile?.picture,
+                description = "Profile picture",
+                modifier = Modifier.size(120.dp),
+                shape = MaterialShapes.Cookie12Sided.toShape(),
+            )
+            Column(
+                verticalArrangement = Arrangement.spacedBy(4.dp),
+                horizontalAlignment = Alignment.CenterHorizontally,
+            ) {
+                Text(
+                    text = profile?.name ?: "No name",
+                    textAlign = TextAlign.Center,
+                    style = MaterialTheme.typography.titleLargeEmphasized.copy(
+                        fontFamily = getExpressiveFontFamily()
+                    ),
+                )
+                Text(
+                    text = pubkey.short(),
+                    textAlign = TextAlign.Center,
+                    style = MaterialTheme.typography.labelMedium,
+                    color = MaterialTheme.colorScheme.outline
+                )
+            }
+        }
+        Column(
+            modifier = Modifier.fillMaxWidth(),
+            verticalArrangement = Arrangement.spacedBy(4.dp),
+        ) {
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                verticalAlignment = Alignment.CenterVertically,
+                horizontalArrangement = Arrangement.spacedBy(8.dp),
+            ) {
+                Icon(
+                    painter = painterResource(
+                        if (isContact) Res.drawable.ic_check_circle else Res.drawable.ic_cancel
+                    ),
+                    contentDescription = "Warning",
+                    tint = if (isContact) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.error
+                )
+                Text(
+                    text = if (isContact) "Contact" else "Not a contact",
+                    style = MaterialTheme.typography.labelMediumEmphasized
+                )
+            }
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                verticalAlignment = Alignment.CenterVertically,
+                horizontalArrangement = Arrangement.spacedBy(8.dp),
+            ) {
+                Icon(
+                    painter = painterResource(
+                        if (mutualContacts.isNotEmpty()) Res.drawable.ic_check_circle else Res.drawable.ic_cancel
+                    ),
+                    contentDescription = "Warning",
+                    tint = if (mutualContacts.isNotEmpty()) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.error
+                )
+                Text(
+                    text = if (mutualContacts.isEmpty()) "No contacts in common" else "${mutualContacts.size} contacts in common",
+                    style = MaterialTheme.typography.labelMediumEmphasized
+                )
+            }
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                verticalAlignment = Alignment.CenterVertically,
+                horizontalArrangement = Arrangement.spacedBy(8.dp),
+            ) {
+                Icon(
+                    painter = painterResource(Res.drawable.ic_check_circle),
+                    contentDescription = "Warning",
+                    tint = if (lastActivity != null) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.outline
+                )
+                Text(
+                    text = if (lastActivity == null) "Don't have any public activities" else "Last activity at ${lastActivity?.humanReadable()}",
+                    style = MaterialTheme.typography.labelMediumEmphasized
+                )
+            }
+        }
+    }
+}
+
+@Composable
+fun DateSeparator(date: String) {
+    Box(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(vertical = 16.dp),
+        contentAlignment = Alignment.Center
+    ) {
+        Text(
+            text = date,
+            style = MaterialTheme.typography.labelMedium,
+            color = MaterialTheme.colorScheme.outline
+        )
+    }
+}

composeApp/src/androidMain/kotlin/su/reya/coop/screens/chat/ChatInput.kt

@@ -0,0 +1,97 @@
+package su.reya.coop.screens.chat
+
+import androidx.compose.animation.AnimatedContent
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.scaleIn
+import androidx.compose.animation.scaleOut
+import androidx.compose.animation.togetherWith
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.FilledTonalIconButton
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.IconButtonDefaults
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextField
+import androidx.compose.material3.TextFieldDefaults
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.unit.dp
+import coop.composeapp.generated.resources.Res
+import coop.composeapp.generated.resources.ic_add_circle
+import coop.composeapp.generated.resources.ic_audio
+import coop.composeapp.generated.resources.ic_send
+import org.jetbrains.compose.resources.painterResource
+
+@Composable
+fun ChatInput(
+    value: String,
+    onValueChange: (String) -> Unit,
+    onSend: () -> Unit,
+    onUpload: () -> Unit,
+    onMicClick: () -> Unit
+) {
+    Row(
+        modifier = Modifier.padding(horizontal = 16.dp, vertical = 8.dp),
+        verticalAlignment = Alignment.Bottom
+    ) {
+        TextField(
+            modifier = Modifier.weight(1f),
+            shape = RoundedCornerShape(28.dp),
+            colors = TextFieldDefaults.colors(
+                focusedIndicatorColor = Color.Transparent,
+                unfocusedIndicatorColor = Color.Transparent
+            ),
+            value = value,
+            onValueChange = onValueChange,
+            placeholder = { Text("Message") },
+            leadingIcon = {
+                IconButton(onClick = onUpload) {
+                    Icon(
+                        painter = painterResource(Res.drawable.ic_add_circle),
+                        contentDescription = "Upload",
+                    )
+                }
+            },
+        )
+        Spacer(modifier = Modifier.size(8.dp))
+        AnimatedContent(
+            targetState = value.isNotEmpty(),
+            transitionSpec = { (scaleIn() + fadeIn()) togetherWith (scaleOut() + fadeOut()) },
+            label = "send_mic_transition"
+        ) { isNotEmpty ->
+            if (isNotEmpty) {
+                IconButton(
+                    onClick = onSend,
+                    modifier = Modifier.size(56.dp),
+                    colors = IconButtonDefaults.iconButtonColors(
+                        containerColor = MaterialTheme.colorScheme.surfaceVariant,
+                        contentColor = MaterialTheme.colorScheme.onSurfaceVariant
+                    )
+                ) {
+                    Icon(
+                        painter = painterResource(Res.drawable.ic_send),
+                        contentDescription = "Send"
+                    )
+                }
+            } else {
+                FilledTonalIconButton(
+                    onClick = onMicClick,
+                    modifier = Modifier.size(56.dp),
+                ) {
+                    Icon(
+                        painter = painterResource(Res.drawable.ic_audio),
+                        contentDescription = "Speech to Text"
+                    )
+                }
+            }
+        }
+    }
+}

composeApp/src/androidMain/kotlin/su/reya/coop/screens/chat/ChatMessage.kt

@@ -0,0 +1,183 @@
+package su.reya.coop.screens.chat
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.expandVertically
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.shrinkVertically
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.widthIn
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.Immutable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.text.AnnotatedString
+import androidx.compose.ui.text.LinkAnnotation
+import androidx.compose.ui.text.SpanStyle
+import androidx.compose.ui.text.TextLinkStyles
+import androidx.compose.ui.text.buildAnnotatedString
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextDecoration
+import androidx.compose.ui.unit.dp
+import coil3.compose.AsyncImage
+import rust.nostr.sdk.PublicKey
+import rust.nostr.sdk.UnsignedEvent
+import su.reya.coop.URL_REGEX
+import su.reya.coop.formatAsTime
+import su.reya.coop.isImageUrl
+import su.reya.coop.removeImageUrls
+
+@Immutable
+data class MessageUiModel(
+    val id: String,
+    val annotatedContent: AnnotatedString,
+    val images: List<String>,
+    val timestamp: String,
+    val isMine: Boolean
+)
+
+@Composable
+fun rememberMessageUiModel(
+    event: UnsignedEvent,
+    currentUserPublicKey: PublicKey?,
+    contentColor: Color
+): MessageUiModel {
+    return remember(event, currentUserPublicKey, contentColor) {
+        val content = event.content()
+        val images = URL_REGEX.findAll(content)
+            .map { it.value }
+            .filter { it.isImageUrl() }
+            .toList()
+
+        val cleanedContent = content.removeImageUrls()
+
+        val annotatedString = buildAnnotatedString {
+            var lastIndex = 0
+            URL_REGEX.findAll(cleanedContent).forEach { matchResult ->
+                append(cleanedContent.substring(lastIndex, matchResult.range.first))
+                val url = matchResult.value
+                pushLink(
+                    LinkAnnotation.Url(
+                        url = url,
+                        styles = TextLinkStyles(
+                            style = SpanStyle(
+                                color = contentColor,
+                                textDecoration = TextDecoration.Underline,
+                                fontWeight = FontWeight.Medium
+                            )
+                        )
+                    )
+                )
+                append(url)
+                pop()
+                lastIndex = matchResult.range.last + 1
+            }
+            append(cleanedContent.substring(lastIndex))
+        }
+
+        MessageUiModel(
+            id = event.id()?.toHex() ?: event.hashCode().toString(),
+            annotatedContent = annotatedString,
+            images = images,
+            timestamp = event.createdAt().formatAsTime(),
+            isMine = event.author() == currentUserPublicKey
+        )
+    }
+}
+
+@Composable
+fun ChatMessage(model: MessageUiModel) {
+    var isMessageClicked by remember { mutableStateOf(false) }
+
+    val bubbleShape = if (model.isMine) {
+        RoundedCornerShape(topStart = 20.dp, topEnd = 4.dp, bottomStart = 20.dp, bottomEnd = 20.dp)
+    } else {
+        RoundedCornerShape(topStart = 4.dp, topEnd = 20.dp, bottomStart = 20.dp, bottomEnd = 20.dp)
+    }
+
+    val containerColor =
+        if (!model.isMine) MaterialTheme.colorScheme.surfaceContainer else MaterialTheme.colorScheme.primaryContainer
+
+    val contentColor =
+        if (!model.isMine) MaterialTheme.colorScheme.onSurface else MaterialTheme.colorScheme.onPrimaryContainer
+
+    Box(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(vertical = 4.dp),
+        contentAlignment = if (model.isMine) Alignment.CenterEnd else Alignment.CenterStart
+    ) {
+        Column(
+            modifier = Modifier.clickable(
+                interactionSource = remember { MutableInteractionSource() },
+                indication = null
+            ) {
+                isMessageClicked = !isMessageClicked
+            },
+            horizontalAlignment = if (model.isMine) Alignment.End else Alignment.Start,
+            verticalArrangement = Arrangement.spacedBy(8.dp)
+        ) {
+            if (model.annotatedContent.isNotBlank()) {
+                Surface(
+                    color = containerColor,
+                    contentColor = contentColor,
+                    shape = bubbleShape,
+                    modifier = Modifier.widthIn(max = 280.dp)
+                ) {
+                    Text(
+                        text = model.annotatedContent,
+                        modifier = Modifier.padding(horizontal = 16.dp, vertical = 8.dp),
+                        style = MaterialTheme.typography.bodyLarge
+                    )
+                }
+            }
+            model.images.forEach { imageUrl ->
+                Surface(
+                    shape = RoundedCornerShape(16.dp),
+                    color = MaterialTheme.colorScheme.surfaceVariant,
+                    modifier = Modifier.widthIn(max = 280.dp)
+                ) {
+                    AsyncImage(
+                        model = imageUrl,
+                        contentDescription = "Image from chat",
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .clip(RoundedCornerShape(16.dp)),
+                        contentScale = ContentScale.FillWidth
+                    )
+                }
+            }
+            AnimatedVisibility(
+                visible = isMessageClicked,
+                enter = fadeIn() + expandVertically(),
+                exit = fadeOut() + shrinkVertically()
+            ) {
+                Text(
+                    text = model.timestamp,
+                    style = MaterialTheme.typography.labelSmall,
+                    color = MaterialTheme.colorScheme.outline,
+                    modifier = Modifier.align(
+                        if (model.isMine) Alignment.End else Alignment.Start
+                    )
+                )
+            }
+        }
+    }
+}

composeApp/src/androidMain/kotlin/su/reya/coop/screens/chat/ChatScreen.kt

@@ -0,0 +1,385 @@
+package su.reya.coop.screens.chat
+
+import android.app.Activity
+import android.content.Intent
+import android.net.Uri
+import android.speech.RecognizerIntent
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.ime
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.union
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Badge
+import androidx.compose.material3.BadgedBox
+import androidx.compose.material3.Button
+import androidx.compose.material3.ButtonDefaults
+import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi
+import androidx.compose.material3.FilledTonalButton
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.LoadingIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.ScaffoldDefaults
+import androidx.compose.material3.SnackbarHost
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.material3.TopAppBarDefaults
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.derivedStateOf
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import coop.composeapp.generated.resources.Res
+import coop.composeapp.generated.resources.ic_arrow_back
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import org.jetbrains.compose.resources.painterResource
+import rust.nostr.sdk.UnsignedEvent
+import su.reya.coop.LocalChatViewModel
+import su.reya.coop.LocalNavigator
+import su.reya.coop.LocalNostrViewModel
+import su.reya.coop.LocalSnackbarHostState
+import su.reya.coop.Room
+import su.reya.coop.Screen
+import su.reya.coop.formatAsGroupHeader
+import su.reya.coop.rememberUiState
+import su.reya.coop.roomId
+import su.reya.coop.shared.Avatar
+
+@OptIn(ExperimentalMaterial3ExpressiveApi::class)
+@Composable
+fun ChatScreen(id: Long, screening: Boolean = false) {
+    val context = LocalContext.current
+    val snackbarHostState = LocalSnackbarHostState.current
+    val navigator = LocalNavigator.current
+    val nostrViewModel = LocalNostrViewModel.current
+    val chatViewModel = LocalChatViewModel.current
+    val scope = rememberCoroutineScope()
+    val listState = rememberLazyListState()
+
+    // Get current user
+    val currentUser by nostrViewModel.currentUserProfile.collectAsStateWithLifecycle()
+
+    // Get chat room by ID
+    val chatRooms by chatViewModel.chatRooms.collectAsStateWithLifecycle()
+    val room by remember(id) { derivedStateOf { chatRooms.firstOrNull { it.id == id } } }
+
+    // Show empty screen
+    if (room == null) {
+        Box(
+            modifier = Modifier.fillMaxSize(),
+            contentAlignment = Alignment.Center
+        ) {
+            Text(
+                text = "Something went wrong.",
+                style = MaterialTheme.typography.titleMediumEmphasized,
+                color = MaterialTheme.colorScheme.onSurface
+            )
+        }
+        return
+    }
+
+    val roomState by (room as Room).rememberUiState(nostrViewModel, currentUser?.publicKey)
+    var text by remember { mutableStateOf("") }
+    var loading by remember { mutableStateOf(true) }
+    var newOtherMessages by remember { mutableIntStateOf(0) }
+    var requireScreening by remember { mutableStateOf(screening) }
+
+    val messages = remember { mutableStateListOf<UnsignedEvent>() }
+    val groupedMessages =
+        remember { derivedStateOf { messages.groupBy { it.createdAt().formatAsGroupHeader() } } }
+
+    val sendFile = { uri: Uri ->
+        scope.launch {
+            try {
+                // Read file
+                val file = withContext(Dispatchers.IO) {
+                    context.contentResolver.openInputStream(uri)?.use { it.readBytes() }
+                }
+
+                // Parse the file content type
+                val type = context.contentResolver.getType(uri)
+
+                // Send message
+                chatViewModel.sendFileMessage(id, file, type)
+            } catch (e: Exception) {
+                snackbarHostState.showSnackbar("Error: ${e.message}")
+            }
+        }
+    }
+
+    val fileLauncher =
+        rememberLauncherForActivityResult(ActivityResultContracts.GetContent()) { uri ->
+            uri?.let { sendFile(it) }
+        }
+
+    val sttLauncher =
+        rememberLauncherForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
+            if (result.resultCode == Activity.RESULT_OK) {
+                val data = result.data
+                val results = data?.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS)
+                if (!results.isNullOrEmpty()) text = results[0]
+            }
+        }
+
+    LaunchedEffect(id) {
+        // Get messages
+        val initialMessages = chatViewModel.getChatRoomMessages(id)
+        messages.clear()
+        messages.addAll(initialMessages)
+
+        // Stop loading spinner
+        loading = false
+
+        // Get msg relays for each member
+        chatViewModel.chatRoomConnect(id)
+
+        // Handle new messages
+        chatViewModel.newEvents.collect { event ->
+            if (event.roomId() == id) {
+                if (event.id() !in messages.map { it.id() }) {
+                    messages.add(0, event)
+                }
+            } else {
+                // If the event is not in the current room, it's a new message from another user
+                newOtherMessages++
+            }
+        }
+    }
+
+    LaunchedEffect(messages.size) {
+        if (messages.isNotEmpty()) {
+            listState.animateScrollToItem(0)
+        }
+    }
+
+    Scaffold(
+        contentWindowInsets = ScaffoldDefaults.contentWindowInsets.union(WindowInsets.ime),
+        containerColor = MaterialTheme.colorScheme.surfaceContainer,
+        snackbarHost = { SnackbarHost(snackbarHostState) },
+        topBar = {
+            TopAppBar(
+                title = {
+                    Row(
+                        verticalAlignment = Alignment.CenterVertically,
+                        modifier = Modifier.clickable {
+                            room?.members?.firstOrNull()?.let { pubkey ->
+                                navigator.navigate(Screen.Profile(pubkey.toBech32()))
+                            }
+                        }
+                    ) {
+                        if (loading) {
+                            LoadingIndicator(modifier = Modifier.size(32.dp))
+                        } else {
+                            Avatar(
+                                picture = roomState.picture,
+                                description = roomState.name,
+                                size = 32.dp,
+                            )
+                        }
+                        Spacer(modifier = Modifier.size(8.dp))
+                        Text(
+                            text = roomState.name,
+                            style = MaterialTheme.typography.titleMediumEmphasized,
+                        )
+                    }
+                },
+                navigationIcon = {
+                    BadgedBox(
+                        badge = {
+                            if (newOtherMessages > 0) {
+                                Badge {
+                                    Text(newOtherMessages.toString())
+                                }
+                            }
+                        }
+                    ) {
+                        IconButton(onClick = { navigator.goBack() }) {
+                            Icon(
+                                painter = painterResource(Res.drawable.ic_arrow_back),
+                                contentDescription = "Back"
+                            )
+                        }
+                    }
+                },
+                colors = TopAppBarDefaults.topAppBarColors(
+                    containerColor = MaterialTheme.colorScheme.surfaceContainer,
+                )
+            )
+        },
+        content = { innerPadding ->
+            Surface(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .padding(top = innerPadding.calculateTopPadding()),
+                color = MaterialTheme.colorScheme.surface,
+                shape = RoundedCornerShape(topStart = 24.dp, topEnd = 24.dp),
+            ) {
+                Column(
+                    modifier = Modifier
+                        .fillMaxSize()
+                        .padding(bottom = innerPadding.calculateBottomPadding())
+                ) {
+                    if (requireScreening) {
+                        room?.let { ScreenerCard(it) }
+                    }
+
+                    val mineColor = MaterialTheme.colorScheme.onPrimaryContainer
+                    val otherColor = MaterialTheme.colorScheme.onSurface
+
+                    when (messages.isNotEmpty()) {
+                        true -> {
+                            LazyColumn(
+                                modifier = Modifier
+                                    .weight(1f)
+                                    .fillMaxWidth(),
+                                contentPadding = PaddingValues(16.dp),
+                                reverseLayout = true,
+                                state = listState,
+                            ) {
+                                groupedMessages.value.forEach { (dateHeader, messagesInGroup) ->
+                                    items(
+                                        items = messagesInGroup,
+                                        key = { it.id()?.toHex() ?: it.hashCode().toString() }
+                                    ) { event ->
+                                        val isMine = currentUser?.publicKey == event.author()
+                                        val uiModel = rememberMessageUiModel(
+                                            event = event,
+                                            currentUserPublicKey = currentUser?.publicKey,
+                                            contentColor = if (isMine) mineColor else otherColor
+                                        )
+                                        ChatMessage(model = uiModel)
+                                    }
+                                    item {
+                                        DateSeparator(dateHeader)
+                                    }
+                                }
+                            }
+                        }
+
+                        false -> {
+                            Box(
+                                modifier = Modifier
+                                    .weight(1f)
+                                    .fillMaxWidth(),
+                                contentAlignment = Alignment.Center
+                            ) {
+                                Column(
+                                    horizontalAlignment = Alignment.CenterHorizontally,
+                                    verticalArrangement = Arrangement.spacedBy(4.dp),
+                                ) {
+                                    Text(
+                                        text = "No messages yet",
+                                        style = MaterialTheme.typography.titleLargeEmphasized.copy(
+                                            fontWeight = FontWeight.SemiBold
+                                        ),
+                                        color = MaterialTheme.colorScheme.onSurface
+                                    )
+                                    Text(
+                                        text = "Your conversations will appear here.",
+                                        style = MaterialTheme.typography.bodyMedium,
+                                        color = MaterialTheme.colorScheme.outline
+                                    )
+                                }
+                            }
+                        }
+                    }
+
+                    when (requireScreening) {
+                        true -> {
+                            Row(
+                                modifier = Modifier
+                                    .fillMaxWidth()
+                                    .padding(horizontal = 16.dp, vertical = 8.dp),
+                                horizontalArrangement = Arrangement.spacedBy(8.dp),
+                            ) {
+                                Button(
+                                    onClick = { navigator.goBack() },
+                                    modifier = Modifier
+                                        .weight(1f)
+                                        .size(ButtonDefaults.MediumContainerHeight)
+                                ) {
+                                    Text(
+                                        text = "Reject",
+                                        style = MaterialTheme.typography.titleMedium,
+                                    )
+                                }
+                                FilledTonalButton(
+                                    onClick = { requireScreening = false },
+                                    modifier = Modifier
+                                        .weight(1f)
+                                        .size(ButtonDefaults.MediumContainerHeight)
+                                ) {
+                                    Text(
+                                        text = "Accept",
+                                        style = MaterialTheme.typography.titleMedium,
+                                    )
+                                }
+                            }
+                        }
+
+                        else -> {
+                            ChatInput(
+                                value = text,
+                                onValueChange = { text = it },
+                                onSend = {
+                                    chatViewModel.sendMessage(id, text)
+                                    text = ""
+                                },
+                                onUpload = {
+                                    fileLauncher.launch("image/*")
+                                },
+                                onMicClick = {
+                                    val intent =
+                                        Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH).apply {
+                                            putExtra(
+                                                RecognizerIntent.EXTRA_LANGUAGE_MODEL,
+                                                RecognizerIntent.LANGUAGE_MODEL_FREE_FORM
+                                            )
+                                            putExtra(RecognizerIntent.EXTRA_PROMPT, "Speak now...")
+                                        }
+                                    try {
+                                        sttLauncher.launch(intent)
+                                    } catch (e: Exception) {
+                                        scope.launch {
+                                            snackbarHostState.showSnackbar("Speech recognition not available")
+                                        }
+                                    }
+                                }
+                            )
+                        }
+                    }
+                }
+            }
+        }
+    )
+}

composeApp/src/androidMain/kotlin/su/reya/coop/shared/ProfileEditor.kt

@@ -38,6 +38,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -53,7 +54,6 @@ import coil3.compose.AsyncImage
 import coop.composeapp.generated.resources.Res
 import coop.composeapp.generated.resources.ic_arrow_back
 import coop.composeapp.generated.resources.ic_plus
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
@@ -75,6 +75,8 @@ fun ProfileEditor(
     val context = LocalContext.current
     val snackbarHostState = LocalSnackbarHostState.current
     val focusManager = LocalFocusManager.current
+    val scope = rememberCoroutineScope()
+
     var name by remember(initialName) { mutableStateOf(initialName) }
     var bio by remember(initialBio) { mutableStateOf(initialBio) }
     var picture by remember(initialPicture) { mutableStateOf(initialPicture) }
@@ -264,7 +266,6 @@ fun ProfileEditor(
                             .fillMaxWidth()
                             .size(ButtonDefaults.MediumContainerHeight),
                         onClick = {
-                            val scope = CoroutineScope(Dispatchers.Main)
                             scope.launch {
                                 val bytes = withContext(Dispatchers.IO) {
                                     (picture as? Uri)?.let {

composeApp/src/androidMain/kotlin/su/reya/coop/shared/RoomHelper.kt

@@ -1,40 +0,0 @@
-package su.reya.coop.shared
-
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.combine
-import kotlinx.coroutines.flow.flowOf
-import kotlinx.coroutines.flow.map
-import su.reya.coop.NostrViewModel
-import su.reya.coop.Room
-import su.reya.coop.short
-
-fun Room.nameFlow(viewModel: NostrViewModel): Flow<String> {
-    // Return early if there's a custom subject/room name
-    subject?.takeIf { it.isNotBlank() }?.let { return flowOf(it) }
-
-    val displayMembers = if (isGroup()) members.take(2) else members.take(1)
-    if (displayMembers.isEmpty()) return flowOf("Unknown")
-
-    return combine(displayMembers.map { viewModel.getMetadata(it) }) { metadataArray ->
-        val names = metadataArray.mapIndexed { i, metadata ->
-            val profile = metadata?.asRecord()
-            profile?.name?.takeIf { it.isNotBlank() }
-                ?: profile?.displayName?.takeIf { it.isNotBlank() }
-                ?: displayMembers[i].short()
-        }
-
-        if (isGroup()) {
-            val combined = names.joinToString(", ")
-            val extraCount = members.size - names.size
-            if (extraCount > 0) "$combined, +$extraCount" else combined
-        } else {
-            val name = names.first()
-            if (displayMembers.first() == viewModel.currentUser()) "$name (you)" else name
-        }
-    }
-}
-
-fun Room.pictureFlow(viewModel: NostrViewModel): Flow<String?> {
-    val firstMember = members.firstOrNull() ?: return flowOf(null)
-    return viewModel.getMetadata(firstMember).map { it?.asRecord()?.picture }
-}

gradle/libs.versions.toml

@@ -10,14 +10,14 @@ androidx-espresso = "3.7.0"
 androidx-lifecycle = "2.10.0"
 androidx-testExt = "1.3.0"
 androidx-splashscreen = "1.2.0"
-composeMultiplatform = "1.11.0"
+composeMultiplatform = "1.11.1"
 datastorePreferences = "1.2.1"
 junit = "4.13.2"
-kotlin = "2.3.21"
+kotlin = "2.4.0"
 kotlinx-serialization = "1.11.0"
 material3 = "1.11.0-alpha07"
 multiplatform-nav3-ui = "1.1.1"
-ktor = "3.5.0"
+ktor = "3.5.1"
 
 [libraries]
 androidx-datastore-preferences = { module = "androidx.datastore:datastore-preferences", version.ref = "datastorePreferences" }

shared/build.gradle.kts

@@ -3,6 +3,8 @@ import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 plugins {
     alias(libs.plugins.kotlinMultiplatform)
     alias(libs.plugins.androidLibrary)
+    alias(libs.plugins.composeMultiplatform)
+    alias(libs.plugins.composeCompiler)
     kotlin("plugin.serialization") version libs.versions.kotlin.get()
 }
 
@@ -31,10 +33,10 @@ kotlin {
             implementation(libs.ktor.serialization.kotlinx.json)
             implementation(libs.androidx.lifecycle.viewmodelCompose)
             implementation(libs.androidx.lifecycle.runtimeCompose)
-            implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.10.2")
+            implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.11.0")
             implementation("org.jetbrains.kotlinx:kotlinx-datetime:0.8.0")
-            implementation("su.reya:nostr-sdk-kmp:0.3.1")
+            implementation("su.reya:nostr-sdk-kmp:0.3.2")
-            implementation("com.squareup.okio:okio:3.16.2")
+            implementation("com.squareup.okio:okio:3.17.0")
         }
         androidMain.dependencies {
             implementation(libs.ktor.client.okhttp)

shared/src/commonMain/kotlin/su/reya/coop/Extensions.kt

@@ -0,0 +1,26 @@
+package su.reya.coop
+
+import rust.nostr.sdk.PublicKey
+
+fun PublicKey.short(): String {
+    val bech32 = toBech32()
+    return bech32.substring(0, 6) + "..." + bech32.substring(bech32.length - 4)
+}
+
+val URL_REGEX = Regex("(https?://\\S+)", RegexOption.IGNORE_CASE)
+private val imageExtensions = setOf("jpg", "jpeg", "png", "gif", "webp", "bmp")
+
+fun String.extractUrls(): List<String> {
+    return URL_REGEX.findAll(this).map { it.value }.toList()
+}
+
+fun String.removeImageUrls(): String {
+    return URL_REGEX.replace(this) { result ->
+        if (result.value.isImageUrl()) "" else result.value
+    }.replace(Regex("\\s+"), " ").trim()
+}
+
+fun String.isImageUrl(): Boolean {
+    val extension = this.substringAfterLast('.', "").lowercase()
+    return extension in imageExtensions
+}

shared/src/commonMain/kotlin/su/reya/coop/NostrViewModel.kt

@@ -1,856 +0,0 @@
-package su.reya.coop
-
-import androidx.lifecycle.Lifecycle
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.repeatOnLifecycle
-import androidx.lifecycle.viewModelScope
-import io.ktor.client.HttpClient
-import io.ktor.client.plugins.contentnegotiation.ContentNegotiation
-import io.ktor.serialization.kotlinx.json.json
-import kotlinx.coroutines.NonCancellable
-import kotlinx.coroutines.channels.Channel
-import kotlinx.coroutines.coroutineScope
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.flow.MutableSharedFlow
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.asSharedFlow
-import kotlinx.coroutines.flow.asStateFlow
-import kotlinx.coroutines.flow.receiveAsFlow
-import kotlinx.coroutines.flow.update
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
-import kotlinx.coroutines.withTimeoutOrNull
-import kotlinx.serialization.json.Json
-import rust.nostr.sdk.AsyncNostrSigner
-import rust.nostr.sdk.EventBuilder
-import rust.nostr.sdk.EventId
-import rust.nostr.sdk.Keys
-import rust.nostr.sdk.Kind
-import rust.nostr.sdk.KindStandard
-import rust.nostr.sdk.Metadata
-import rust.nostr.sdk.NostrConnect
-import rust.nostr.sdk.NostrConnectUri
-import rust.nostr.sdk.PublicKey
-import rust.nostr.sdk.RelayMetadata
-import rust.nostr.sdk.RelayUrl
-import rust.nostr.sdk.Tag
-import rust.nostr.sdk.Timestamp
-import rust.nostr.sdk.UnsignedEvent
-import su.reya.coop.blossom.BlossomClient
-import su.reya.coop.storage.SecretStorage
-import kotlin.time.Clock
-import kotlin.time.Duration.Companion.milliseconds
-import kotlin.time.Duration.Companion.seconds
-
-class NostrViewModel(
-    private val nostr: Nostr,
-    private val secretStore: SecretStorage,
-    private val externalSignerHandler: ExternalSignerHandler? = null,
-) : ViewModel() {
-    private val _isNotificationBannerDismissed = MutableStateFlow(false)
-    val isNotificationBannerDismissed = _isNotificationBannerDismissed.asStateFlow()
-
-    private val _signerRequired = MutableStateFlow<Boolean?>(null)
-    val signerRequired = _signerRequired.asStateFlow()
-
-    private val _isBusy = MutableStateFlow(false)
-    val isBusy = _isBusy.asStateFlow()
-
-    private val _isPartialProcessedGiftWrap = MutableStateFlow(false)
-    val isPartialProcessedGiftWrap = _isPartialProcessedGiftWrap.asStateFlow()
-
-    private val _isRelayListEmpty = MutableStateFlow(false)
-    val isRelayListEmpty = _isRelayListEmpty.asStateFlow()
-
-    private val _chatRooms = MutableStateFlow<Set<Room>>(emptySet())
-    val chatRooms = _chatRooms.asStateFlow()
-
-    private val _contactList = MutableStateFlow<Set<PublicKey>>(emptySet())
-    val contactList = _contactList.asStateFlow()
-
-    private val _newEvents = MutableSharedFlow<UnsignedEvent>(extraBufferCapacity = 100)
-    val newEvents = _newEvents.asSharedFlow()
-
-    private val _sentReports = MutableSharedFlow<Map<EventId, List<RelayUrl>>>()
-    val sentReport = _sentReports.asSharedFlow()
-
-    private val _errorEvents = Channel<String>(Channel.BUFFERED)
-    val errorEvents = _errorEvents.receiveAsFlow()
-
-    private val _metadataStore = mutableMapOf<PublicKey, MutableStateFlow<Metadata?>>()
-    private val metadataRequestChannel = Channel<PublicKey>(Channel.UNLIMITED)
-    private val seenPublicKeys = mutableSetOf<PublicKey>()
-
-    init {
-        // Skip the splash screen if a user is already logged in
-        if (nostr.signer.currentUser != null) {
-            _signerRequired.value = false
-        }
-
-        // Check if the notification banner has been dismissed
-        checkNotificationBannerDismissedStatus()
-
-        // Check local stored secret (secret key or bunker)
-        login()
-
-        // Automatically reconnect bootstrap relays
-        reconnect()
-
-        // Observe the signer state and verify the relay list
-        observeSignerAndCheckRelays()
-
-        // Get all local stored metadata
-        getCacheMetadata()
-    }
-
-    fun bindLifecycle(lifecycle: Lifecycle) {
-        viewModelScope.launch {
-            lifecycle.repeatOnLifecycle(Lifecycle.State.STARTED) {
-                coroutineScope {
-                    launch { refreshChatRooms() }
-                    launch { runObserver() }
-                    launch { runMetadataBatching() }
-                }
-            }
-        }
-    }
-
-    override fun onCleared() {
-        super.onCleared()
-
-        // Disconnect to all bootstrap relays
-        viewModelScope.launch {
-            withContext(NonCancellable) {
-                nostr.disconnect()
-            }
-        }
-    }
-
-    private fun showError(message: String) {
-        viewModelScope.launch {
-            _errorEvents.send(message)
-        }
-    }
-
-    private fun checkNotificationBannerDismissedStatus() {
-        viewModelScope.launch {
-            _isNotificationBannerDismissed.value =
-                secretStore.get("notification_banner_dismissed") == "true"
-        }
-    }
-
-    private fun reconnect() {
-        viewModelScope.launch {
-            nostr.waitUntilInitialized()
-            nostr.reconnect()
-        }
-    }
-
-    private suspend fun runObserver() = coroutineScope {
-        // Observe new messages
-        launch {
-            nostr.newEvents.collect { event ->
-                val roomId = event.roomId()
-                val existingRoom = _chatRooms.value.firstOrNull { it.id == roomId }
-
-                if (existingRoom == null) {
-                    val currentUser = nostr.signer.currentUser
-                    if (currentUser != null) {
-                        val newRoom = Room.new(event, currentUser)
-                        _chatRooms.update { (it + newRoom).sortedDescending().toSet() }
-                    }
-                } else {
-                    updateRoomList(roomId, event)
-                }
-
-                _newEvents.emit(event)
-            }
-        }
-
-        // Observe contact list updates
-        launch {
-            nostr.contactListUpdates.collect { contacts ->
-                _contactList.value = contacts.toSet()
-            }
-        }
-
-        // Observe metadata updates
-        launch {
-            nostr.metadataUpdates.collect { (pubkey, metadata) ->
-                updateMetadata(pubkey, metadata)
-            }
-        }
-
-        // Observes subscription close
-        launch {
-            nostr.subscriptionClosed.collect {
-                getChatRooms()
-                _isPartialProcessedGiftWrap.value = true
-            }
-        }
-    }
-
-    private suspend fun runMetadataBatching() = coroutineScope {
-        // Wait until the client is ready
-        nostr.waitUntilInitialized()
-
-        val batch = mutableSetOf<PublicKey>()
-        val timeout = 500L // 500ms timeout for batching
-
-        while (true) {
-            val firstKey = metadataRequestChannel.receive()
-            batch.add(firstKey)
-            val lastFlushTime = Clock.System.now().toEpochMilliseconds()
-
-            while (batch.isNotEmpty()) {
-                val nextKey = withTimeoutOrNull(timeout.milliseconds) {
-                    metadataRequestChannel.receive()
-                }
-
-                // Only add the key if it's not null
-                if (nextKey != null) batch.add(nextKey)
-
-                // Get current time
-                val now = Clock.System.now().toEpochMilliseconds()
-
-                // Check if the batch is full or timeout has passed
-                if (batch.size >= 10 || (now - lastFlushTime) >= timeout || nextKey == null) {
-                    val keysToRequest = batch.toList()
-                    batch.clear()
-
-                    nostr.fetchMetadataBatch(keysToRequest)
-                }
-            }
-        }
-    }
-
-    private fun getCacheMetadata() {
-        viewModelScope.launch {
-            // Wait until the client is ready
-            nostr.waitUntilInitialized()
-
-            val results = nostr.getAllCacheMetadata()
-            results.forEach { (pubkey, metadata) ->
-                // Update the metadata state
-                updateMetadata(pubkey, metadata)
-                // Update seenPublicKeys to avoid duplicate requests
-                seenPublicKeys.add(pubkey)
-            }
-        }
-    }
-
-    private fun login() {
-        viewModelScope.launch {
-            try {
-                val secret = withTimeoutOrNull(3.seconds) {
-                    secretStore.get("user_signer")
-                }
-
-                if (secret == null) {
-                    _signerRequired.value = true
-                    return@launch
-                }
-
-                runCatching {
-                    val signer = createSigner(secret)
-                    nostr.setSigner(signer)
-                }.onSuccess {
-                    _signerRequired.value = false
-                }.onFailure { e ->
-                    showError("Login failed: ${e.message}")
-                    _signerRequired.value = true
-                }
-            } catch (e: Exception) {
-                showError("Login failed: ${e.message}")
-                _signerRequired.value = true
-            }
-        }
-    }
-
-    private fun observeSignerAndCheckRelays() {
-        viewModelScope.launch {
-            while (true) {
-                val pubkey = nostr.signer.currentUser
-
-                if (pubkey != null) {
-                    // Get chat rooms
-                    val rooms = nostr.getChatRooms() ?: emptySet()
-                    if (rooms.isNotEmpty()) {
-                        mergeChatRooms(rooms)
-                        _isPartialProcessedGiftWrap.value = true
-                    }
-
-                    // Get all metadata for the current user
-                    nostr.getUserMetadata()
-
-                    // Small delay to ensure all relays are connected
-                    delay(2.seconds)
-
-                    // Check if the relay list is empty
-                    val relays = nostr.getMsgRelays(pubkey)
-                    if (relays.isEmpty()) _isRelayListEmpty.value = true
-
-                    break
-                }
-
-                delay(500.milliseconds)
-            }
-        }
-    }
-
-    private fun requestMetadata(pubkey: PublicKey) {
-        if (seenPublicKeys.add(pubkey)) {
-            viewModelScope.launch {
-                metadataRequestChannel.send(pubkey)
-            }
-        }
-    }
-
-    private fun updateMetadata(pubkey: PublicKey, metadata: Metadata) {
-        _metadataStore.getOrPut(pubkey) { MutableStateFlow(null) }.value = metadata
-    }
-
-    fun getMetadata(pubkey: PublicKey): StateFlow<Metadata?> {
-        val flow = _metadataStore.getOrPut(pubkey) { MutableStateFlow(null) }
-        if (flow.value == null) {
-            requestMetadata(pubkey)
-        }
-        return flow.asStateFlow()
-    }
-
-    fun currentUser(): PublicKey? {
-        return nostr.signer.currentUser
-    }
-
-    fun logout() {
-        viewModelScope.launch {
-            secretStore.clear("user_signer")
-            nostr.signer.switch(Keys.generate())
-            _signerRequired.value = true
-        }
-    }
-
-    fun dismissNotificationBanner() {
-        viewModelScope.launch {
-            secretStore.set("notification_banner_dismissed", "true")
-            _isNotificationBannerDismissed.value = true
-        }
-    }
-
-    fun dismissRelayWarning() {
-        _isRelayListEmpty.value = false
-    }
-
-    private suspend fun getOrInitAppKeys(): Keys {
-        val secret = secretStore.get("app_keys")
-
-        // If app keys are already stored, use them
-        if (secret != null) {
-            return Keys.parse(secret)
-        }
-
-        // Generate new app keys and save to the secret storage
-        val keys = Keys.generate()
-        secretStore.set("app_keys", keys.secretKey().toBech32())
-
-        return keys
-    }
-
-    private suspend fun blossomUpload(file: ByteArray, contentType: String): String? {
-        try {
-            // Upload picture to Blossom
-            val blossom = BlossomClient(
-                url = "https://blossom.band",
-                client = HttpClient {
-                    install(ContentNegotiation) {
-                        json(Json {
-                            ignoreUnknownKeys = true
-                            prettyPrint = true
-                            isLenient = true
-                        })
-                    }
-                }
-            )
-
-            val descriptor = blossom.upload(
-                file = file,
-                contentType = contentType,
-                signer = nostr.signer.get()
-            )
-
-            return descriptor?.url
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-            return null
-        }
-    }
-
-    suspend fun updateProfile(
-        name: String? = null,
-        bio: String? = null,
-        picture: ByteArray? = null,
-        contentType: String? = null
-    ) {
-        _isBusy.value = true
-        try {
-            val avatarUrl = picture?.let { blossomUpload(it, contentType ?: "image/jpeg") }
-            val newMetadata = nostr.updateProfile(name, bio, avatarUrl)
-            // Update the metadata state after successfully published
-            updateMetadata(nostr.signer.currentUser!!, newMetadata)
-            // Update local state
-            _isBusy.value = false
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-    }
-
-    suspend fun createIdentity(
-        name: String,
-        bio: String?,
-        picture: ByteArray?,
-        contentType: String? = null
-    ) {
-        _isBusy.value = true
-
-        val keys = Keys.generate()
-        val secret = keys.secretKey().toBech32()
-
-        try {
-            val avatarUrl = picture?.let { blossomUpload(it, contentType ?: "image/jpeg") }
-            // Create identity
-            nostr.createIdentity(keys = keys, name = name, bio, picture = avatarUrl)
-            // Persist the secret in the secret storage
-            secretStore.set("user_signer", secret)
-            // Update local states
-            _isBusy.value = false
-            _signerRequired.value = false
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-    }
-
-    private suspend fun createSigner(secret: String): AsyncNostrSigner {
-        return when {
-            secret.startsWith("nsec1") -> Keys.parse(secret)
-
-            secret.startsWith("bunker://") -> {
-                val appKeys = getOrInitAppKeys()
-                val bunker = NostrConnectUri.parse(secret)
-                val timeout = 50.seconds // or Duration.parse("50s")
-                NostrConnect(uri = bunker, appKeys, timeout, null)
-            }
-
-            secret.startsWith("nip55://") -> {
-                val handler = externalSignerHandler
-                    ?: throw IllegalStateException("External signer not available on this platform")
-
-                // Format: nip55://packageName/hexPubkey
-                val parts = secret.removePrefix("nip55://").split("/", limit = 2)
-                val packageName = parts[0]
-                val pubkey = PublicKey.parse(parts[1])
-
-                handler.setPackageName(packageName)
-                ExternalSignerProxy(handler, pubkey)
-            }
-
-            else -> throw IllegalArgumentException("Invalid secret format")
-        }
-    }
-
-    suspend fun verifyIdentity(secret: String): PublicKey? {
-        try {
-            val signer = createSigner(secret)
-            if (secret.startsWith("bunker://")) {
-                showError("Please approve the connection.")
-            }
-            return signer.getPublicKeyAsync()
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-            return null
-        }
-    }
-
-    suspend fun importIdentity(secret: String) {
-        _isBusy.value = true
-        try {
-            val signer = createSigner(secret)
-            // Update signer
-            nostr.setSigner(signer)
-            // Persist the secret in the secret storage
-            secretStore.set("user_signer", secret)
-            // Update local states
-            _signerRequired.value = false
-            _isBusy.value = false
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-    }
-
-    suspend fun connectExternalSigner() {
-        val handler = externalSignerHandler ?: throw IllegalStateException("Signer not available")
-        _isBusy.value = true
-        try {
-            val permissions = SignerPermissions.toJson(
-                listOf(
-                    SignerPermissions.signEvent(0),
-                    SignerPermissions.signEvent(3),
-                    SignerPermissions.signEvent(10000),
-                    SignerPermissions.signEvent(10050),
-                    SignerPermissions.signEvent(10063),
-                    SignerPermissions.signEvent(22242),
-                    SignerPermissions.signEvent(30030),
-                    SignerPermissions.signEvent(30315),
-                    SignerPermissions.nip44Encrypt(),
-                    SignerPermissions.nip44Decrypt(),
-                )
-            )
-
-            val result = handler.getPublicKey(permissions) ?: throw Exception("Rejected")
-            val signer = ExternalSignerProxy(handler, result.pubkey)
-
-            // Update signer
-            nostr.setSigner(signer)
-            // Store the signer in the secret storage
-            secretStore.set("user_signer", "nip55://${result.packageName}/${result.pubkey.toHex()}")
-            // Update local states
-            _signerRequired.value = false
-            _isBusy.value = false
-        } catch (e: Exception) {
-            throw Exception("Notice: ${e.message}")
-        }
-    }
-
-    fun isExternalSignerAvailable(): Boolean {
-        return externalSignerHandler?.isAvailable() == true
-    }
-
-    suspend fun refetchMsgRelays(pubkey: PublicKey) {
-        val relays = nostr.fetchMsgRelays(pubkey)
-        if (relays.isNotEmpty()) dismissRelayWarning()
-    }
-
-    suspend fun useDefaultMsgRelayList() {
-        try {
-            val defaultRelays = nostr.getDefaultMsgRelayList()
-            nostr.setMsgRelays(defaultRelays)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-    }
-
-    suspend fun currentUserRelayList(): Map<RelayUrl, RelayMetadata?> {
-        try {
-            return nostr.getRelayList(nostr.signer.currentUser!!)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-            return emptyMap()
-        }
-    }
-
-    suspend fun addInboxRelay(relay: String) {
-        try {
-            val relayUrl = RelayUrl.parse(relay)
-            val relays = currentUserRelayList().toMutableMap()
-            relays[relayUrl] = RelayMetadata.WRITE
-
-            nostr.setRelaylist(relays)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-    }
-
-    suspend fun addOutboxRelay(relay: String) {
-        try {
-            val relayUrl = RelayUrl.parse(relay)
-            val relays = currentUserRelayList().toMutableMap()
-            relays[relayUrl] = RelayMetadata.READ
-
-            nostr.setRelaylist(relays)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-    }
-
-    suspend fun removeRelay(relay: String) {
-        try {
-            val relayUrl = RelayUrl.parse(relay)
-            val relays = currentUserRelayList().toMutableMap()
-            relays.remove(relayUrl)
-
-            nostr.setRelaylist(relays)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-    }
-
-    suspend fun currentUserMsgRelayList(): List<RelayUrl> {
-        try {
-            return nostr.getMsgRelays(nostr.signer.currentUser!!)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-            return emptyList()
-        }
-    }
-
-    suspend fun addMsgRelay(relay: String) {
-        try {
-            val relayUrl = RelayUrl.parse(relay)
-            val relays = currentUserMsgRelayList().toMutableSet()
-            relays.add(relayUrl)
-
-            nostr.setMsgRelays(relays.toList())
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-    }
-
-    suspend fun removeMsgRelay(relay: String) {
-        try {
-            val relayUrl = RelayUrl.parse(relay)
-            val relays = currentUserMsgRelayList().toMutableSet()
-            relays.remove(relayUrl)
-
-            nostr.setMsgRelays(relays.toList())
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-    }
-
-    private suspend fun newContact(publicKey: PublicKey) {
-        if (publicKey in contactList.value) return
-
-        try {
-            val updated = contactList.value + publicKey
-            // Publish new event
-            nostr.setContactList(updated.toList())
-            // Optimistic local update
-            _contactList.update { it + publicKey }
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-    }
-
-    suspend fun addContact(address: String): Boolean {
-        val pubkey = try {
-            if (address.contains("@")) {
-                nostr.searchByAddress(address)
-            } else {
-                PublicKey.parse(address)
-            }
-        } catch (e: Exception) {
-            showError("Invalid contact address: ${e.message}")
-            return false
-        }
-
-        return run {
-            newContact(pubkey)
-            true
-        }
-    }
-
-    fun removeContact(publicKey: PublicKey) {
-        viewModelScope.launch {
-            if (publicKey !in contactList.value) return@launch
-
-            try {
-                val updated = contactList.value - publicKey
-                // Publish new event
-                nostr.setContactList(updated.toList())
-                // Optimistic local update
-                _contactList.update { it - publicKey }
-            } catch (e: Exception) {
-                showError("Error: ${e.message}")
-            }
-        }
-    }
-
-    fun createChatRoom(to: List<PublicKey>): Long {
-        try {
-            if (nostr.signer.currentUser == null) throw IllegalStateException("User not signed in")
-            if (to.isEmpty()) throw IllegalArgumentException("At least one recipient is required")
-
-            val currentUser = nostr.signer.currentUser!!
-
-            // Construct the rumor event
-            val rumor = EventBuilder(Kind.fromStd(KindStandard.PRIVATE_DIRECT_MESSAGE), "")
-                .tags(to.map { Tag.publicKey(it) })
-                .finalizeUnsigned(currentUser)
-
-            // Check if the room already exists
-            val id = rumor.roomId()
-            val existingRoom = _chatRooms.value.firstOrNull { it.id == id }
-
-            // If the room already exists, return its ID
-            if (existingRoom != null) {
-                return existingRoom.id
-            }
-
-            // Create a room from the rumor event
-            val room = Room.new(rumor, currentUser)
-
-            // Update the chat rooms state
-            _chatRooms.update { currentRooms ->
-                (currentRooms + room).sortedDescending().toSet()
-            }
-
-            return room.id
-        } catch (e: Exception) {
-            throw IllegalArgumentException("Failed to create room: ${e.message}")
-        }
-    }
-
-    fun getChatRoom(id: Long): Room? {
-        return chatRooms.value.firstOrNull { it.id == id }
-    }
-
-    private fun mergeChatRooms(rooms: Set<Room>) {
-        _chatRooms.update { currentRooms ->
-            val merged = currentRooms.associateBy { it.id }.toMutableMap()
-            // Add or update rooms from the database
-            rooms.forEach { room ->
-                merged[room.id] = room
-            }
-            // Return as a sorted set to maintain UI consistency
-            merged.values.sortedDescending().toSet()
-        }
-    }
-
-    fun getChatRooms() {
-        viewModelScope.launch {
-            val rooms = nostr.getChatRooms() ?: emptySet()
-            mergeChatRooms(rooms)
-        }
-    }
-
-    suspend fun refreshChatRooms() {
-        try {
-            val rooms = nostr.getChatRooms() ?: emptySet()
-            mergeChatRooms(rooms)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-    }
-
-    suspend fun getChatRoomMessages(roomId: Long): List<UnsignedEvent> {
-        try {
-            return nostr.getChatRoomMessages(roomId)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-
-        return emptyList()
-    }
-
-    fun chatRoomConnect(roomId: Long) {
-        viewModelScope.launch {
-            try {
-                val room = getChatRoom(roomId) ?: throw IllegalArgumentException("Room not found")
-                val members = room.members
-
-                nostr.chatRoomConnect(members.toList())
-            } catch (e: Exception) {
-                showError("Error: ${e.message}")
-            }
-        }
-    }
-
-    fun sendMessage(roomId: Long, message: String, replies: List<EventId> = emptyList()) {
-        if (message.isEmpty()) {
-            showError("Message cannot be empty")
-        }
-        viewModelScope.launch {
-            try {
-                val room = getChatRoom(roomId) ?: throw IllegalArgumentException("Room not found")
-                nostr.sendMessage(
-                    to = room.members,
-                    content = message,
-                    subject = room.subject,
-                    replies = replies,
-                    onRumorCreated = { event ->
-                        updateRoomList(roomId, event)
-                        viewModelScope.launch { _newEvents.emit(event) }
-                    },
-                )
-            } catch (e: Exception) {
-                showError("Error: ${e.message}")
-            }
-        }
-    }
-
-    fun isMessageSent(id: EventId): Boolean {
-        val giftWrapId = nostr.rumorMap[id]
-
-        if (giftWrapId != null) {
-            val isSent = nostr.sentEvents[giftWrapId]?.isNotEmpty() ?: false
-            return isSent
-        } else {
-            return false
-        }
-    }
-
-    private fun updateRoomList(roomId: Long, newMessage: UnsignedEvent) {
-        _chatRooms.update { currentRooms ->
-            currentRooms.map { room ->
-                if (room.id == roomId) {
-                    room.copy(
-                        lastMessage = newMessage.content(),
-                        createdAt = newMessage.createdAt()
-                    )
-                } else {
-                    room
-                }
-            }.sortedDescending().toSet()
-        }
-    }
-
-    suspend fun searchByAddress(query: String): PublicKey? {
-        try {
-            return nostr.searchByAddress(query)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-        return null
-    }
-
-    suspend fun searchByNostr(query: String): List<PublicKey> {
-        try {
-            return nostr.searchByNostr(query)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-        }
-        return emptyList()
-    }
-    
-    suspend fun verifyActivity(pubkey: PublicKey): Timestamp? {
-        return try {
-            nostr.verifyActivity(pubkey)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-            null
-        }
-    }
-
-    suspend fun verifyContact(pubkey: PublicKey): Boolean {
-        return try {
-            nostr.verifyContact(pubkey)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-            false
-        }
-    }
-
-    suspend fun mutualContacts(pubkey: PublicKey): Set<PublicKey> {
-        return try {
-            nostr.mutualContacts(pubkey)
-        } catch (e: Exception) {
-            showError("Error: ${e.message}")
-            setOf()
-        }
-    }
-}
-
-fun PublicKey.short(): String {
-    val bech32 = toBech32()
-    return bech32.substring(0, 6) + "..." + bech32.substring(bech32.length - 4)
-}

shared/src/commonMain/kotlin/su/reya/coop/Profile.kt

@@ -0,0 +1,20 @@
+package su.reya.coop
+
+import rust.nostr.sdk.Metadata
+import rust.nostr.sdk.PublicKey
+
+data class Profile(
+    val publicKey: PublicKey,
+    val metadata: Metadata
+) {
+    private val record by lazy { metadata.asRecord() }
+
+    val name: String
+        get() = record.displayName ?: record.name ?: publicKey.short()
+    
+    val picture: String?
+        get() = record.picture
+
+    val shortPublicKey: String
+        get() = publicKey.short()
+}

shared/src/commonMain/kotlin/su/reya/coop/Room.kt

@@ -1,5 +1,12 @@
 package su.reya.coop
 
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.State
+import androidx.compose.runtime.remember
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.flowOf
 import kotlinx.datetime.DateTimeUnit
 import kotlinx.datetime.TimeZone
 import kotlinx.datetime.minus
@@ -8,6 +15,7 @@ import kotlinx.datetime.toLocalDateTime
 import rust.nostr.sdk.PublicKey
 import rust.nostr.sdk.Timestamp
 import rust.nostr.sdk.UnsignedEvent
+import su.reya.coop.viewmodel.NostrViewModel
 import kotlin.time.Clock
 import kotlin.time.Instant
 
@@ -75,9 +83,60 @@ data class Room(
         return this.copy(lastMessage = message)
     }
 
-    fun isGroup(): Boolean {
+    fun isGroup(): Boolean = members.size > 1
-        return members.size > 1
+}
+
+data class RoomUiState(
+    val name: String = "Loading...",
+    val picture: String? = null,
+    val isGroup: Boolean = false
+)
+
+fun Room.uiStateFlow(
+    nostrViewModel: NostrViewModel,
+    currentUser: PublicKey? = null
+): Flow<RoomUiState> {
+    val displayMembers = if (isGroup()) members.take(2) else members.take(1)
+
+    if (!subject.isNullOrBlank()) {
+        return flowOf(RoomUiState(name = subject, isGroup = isGroup()))
     }
+
+    return combine(displayMembers.map { nostrViewModel.getMetadata(it) }) { profiles ->
+        val names = profiles.mapIndexed { i, profile -> profile?.name ?: displayMembers[i].short() }
+
+        val name = when {
+            isGroup() -> {
+                val combined = names.joinToString(", ")
+                val extra = members.size - names.size
+                if (extra > 0) "$combined, +$extra" else combined
+            }
+
+            else -> {
+                val first = names.firstOrNull() ?: "Unknown"
+                if (displayMembers.firstOrNull() == currentUser) "$first (you)" else first
+            }
+        }
+
+        RoomUiState(
+            name = name,
+            picture = profiles.firstOrNull()?.picture,
+            isGroup = isGroup()
+        )
+    }
+}
+
+@Composable
+fun Room.rememberUiState(
+    viewModel: NostrViewModel,
+    currentUser: PublicKey? = null
+): State<RoomUiState> {
+    return remember(this, currentUser) {
+        uiStateFlow(
+            viewModel,
+            currentUser
+        )
+    }.collectAsStateWithLifecycle(RoomUiState())
 }
 
 fun UnsignedEvent.roomId(): Long {
@@ -94,21 +153,25 @@ fun UnsignedEvent.roomId(): Long {
     return sortedUniqueKeys.hashCode().toLong()
 }
 
-fun Timestamp.ago(): String {
+fun Timestamp.formatAsTime(): String {
-    val SECONDS_IN_MINUTE = 60L
+    val timeZone = TimeZone.currentSystemDefault()
-    val MINUTES_IN_HOUR = 60L
+    val inputInstant = Instant.fromEpochSeconds(this.asSecs().toLong())
-    val HOURS_IN_DAY = 24L
+    val inputDateTime = inputInstant.toLocalDateTime(timeZone)
-    val DAYS_IN_MONTH = 30L
+    val hour = inputDateTime.hour.toString().padStart(2, '0')
+    val minute = inputDateTime.minute.toString().padStart(2, '0')
+    return "$hour:$minute"
+}
 
+fun Timestamp.ago(): String {
     val inputInstant = Instant.fromEpochSeconds(this.asSecs().toLong())
     val now = Clock.System.now()
     val duration = now - inputInstant
 
     return when {
-        duration.inWholeSeconds < SECONDS_IN_MINUTE -> "Now"
+        duration.inWholeSeconds < 60L -> "Now"
-        duration.inWholeMinutes < MINUTES_IN_HOUR -> "${duration.inWholeMinutes}m"
+        duration.inWholeMinutes < 60L -> "${duration.inWholeMinutes}m"
-        duration.inWholeHours < HOURS_IN_DAY -> "${duration.inWholeHours}h"
+        duration.inWholeHours < 24L -> "${duration.inWholeHours}h"
-        duration.inWholeDays < DAYS_IN_MONTH -> "${duration.inWholeDays}d"
+        duration.inWholeDays < 30L -> "${duration.inWholeDays}d"
         else -> {
             val localDateTime = inputInstant.toLocalDateTime(TimeZone.currentSystemDefault())
             val month =

shared/src/commonMain/kotlin/su/reya/coop/nostr/ExternalSignerHandler.kt

@@ -1,4 +1,4 @@
-package su.reya.coop
+package su.reya.coop.nostr
 
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json

shared/src/commonMain/kotlin/su/reya/coop/nostr/ExternalSignerProxy.kt

@@ -1,4 +1,4 @@
-package su.reya.coop
+package su.reya.coop.nostr
 
 import rust.nostr.sdk.AsyncNostrSigner
 import rust.nostr.sdk.Event

shared/src/commonMain/kotlin/su/reya/coop/nostr/Messaging.kt

@@ -0,0 +1,341 @@
+package su.reya.coop.nostr
+
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import rust.nostr.sdk.AckPolicy
+import rust.nostr.sdk.Alphabet
+import rust.nostr.sdk.Client
+import rust.nostr.sdk.Event
+import rust.nostr.sdk.EventBuilder
+import rust.nostr.sdk.EventId
+import rust.nostr.sdk.Filter
+import rust.nostr.sdk.Keys
+import rust.nostr.sdk.Kind
+import rust.nostr.sdk.KindStandard
+import rust.nostr.sdk.PublicKey
+import rust.nostr.sdk.RelayCapabilities
+import rust.nostr.sdk.RelayUrl
+import rust.nostr.sdk.ReqExitPolicy
+import rust.nostr.sdk.ReqTarget
+import rust.nostr.sdk.SendEventTarget
+import rust.nostr.sdk.SingleLetterTag
+import rust.nostr.sdk.Tag
+import rust.nostr.sdk.UnsignedEvent
+import rust.nostr.sdk.nip17ExtractRelayList
+import rust.nostr.sdk.nip59MakeGiftWrapAsync
+import su.reya.coop.Room
+import su.reya.coop.RoomKind
+import su.reya.coop.roomId
+import kotlin.time.Duration
+
+data class MessageSyncState(
+    val processedCount: Int = 0,
+    val isSyncing: Boolean = false
+)
+
+class MessageManager(private val nostr: Nostr) {
+    private val client: Client? get() = nostr.client
+    private val signer: UniversalSigner get() = nostr.signer
+
+    val sentEvents: MutableMap<EventId, List<RelayUrl>> = mutableMapOf()
+    val rumorMap: MutableMap<EventId, EventId> = mutableMapOf()
+
+    private val _messageSyncState = MutableStateFlow(MessageSyncState())
+    val messageSyncState = _messageSyncState.asStateFlow()
+
+    fun updateSyncState(update: (MessageSyncState) -> MessageSyncState) {
+        _messageSyncState.update(update)
+    }
+
+    suspend fun getUserMessages(msgRelayList: Event) {
+        try {
+            val author =
+                signer.getPublicKeyAsync() ?: throw IllegalStateException("User not signed in")
+
+            val relays = nip17ExtractRelayList(msgRelayList)
+
+            // Ensure relay connections
+            relays.forEach { relay ->
+                client?.addRelay(relay)
+                client?.connectRelay(relay)
+            }
+
+            // Construct a filter for gift wrap events
+            val filter = Filter().kind(Kind.fromStd(KindStandard.GIFT_WRAP)).pubkey(author)
+            val target = mutableMapOf<RelayUrl, List<Filter>>()
+            relays.forEach { relay ->
+                target[relay] = listOf(filter)
+            }
+
+            client?.subscribe(
+                target = ReqTarget.manual(target),
+                id = "gift-wraps"
+            )
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to fetch user messages: ${e.message}", e)
+        }
+    }
+
+    suspend fun extractRumor(event: Event): UnsignedEvent? {
+        try {
+            // Gift wrap must have at least one 'p' tag
+            if (event.tags().publicKeys().isEmpty()) {
+                println("No recipient tags found.")
+                return null
+            }
+
+            // Event must be a gift wrap
+            if (event.kind().asStd().let { it != KindStandard.GIFT_WRAP }) {
+                println("Event is not a gift wrap.")
+                return null
+            }
+
+            // Check if the rumor is already cached
+            val cachedRumor = getCachedRumor(event.id())
+            if (cachedRumor != null) return cachedRumor
+
+            // Decrypt the gift wrap event
+            val seal = signer.nip44DecryptAsync(event.author(), event.content())
+            val sealEvent = Event.fromJson(seal)
+
+            // Verify seal event
+            if (!sealEvent.verify()) {
+                println("Failed to verify seal event.")
+                return null
+            }
+
+            // Decrypt the rumor
+            val rumor = signer.nip44DecryptAsync(sealEvent.author(), sealEvent.content())
+            val unsignedEvent = UnsignedEvent.fromJson(rumor).ensureId()
+
+            // Ensure the rumor author matches the seal
+            if (unsignedEvent.author() != sealEvent.author()) {
+                println("Author mismatch.")
+                return null
+            }
+
+            // Cache the rumor for later use
+            setCachedRumor(event.id(), unsignedEvent)
+
+            return unsignedEvent
+        } catch (e: Throwable) {
+            println("Failed to unwrap gift ${event.id().toHex()}: ${e.message}")
+            return null
+        }
+    }
+
+    private suspend fun getCachedRumor(giftId: EventId): UnsignedEvent? {
+        try {
+            val filter = Filter().identifier(giftId.toHex())
+            val event = client?.database()?.query(filter)?.first()
+
+            return event?.content()?.let { UnsignedEvent.fromJson(it).ensureId() }
+        } catch (e: Throwable) {
+            throw IllegalStateException("Failed to get cached rumor: ${e.message}", e)
+        }
+    }
+
+    private suspend fun setCachedRumor(giftId: EventId, rumor: UnsignedEvent) {
+        try {
+            // Construct reference tags
+            val tags = listOf(
+                Tag.identifier(giftId.toHex()),
+                Tag.publicKey(rumor.author()),
+                Tag.custom("r", listOf(rumor.roomId().toString())),
+                Tag.custom("k", listOf("14"))
+            )
+
+            // Set event kind
+            val kind = Kind.fromStd(KindStandard.APPLICATION_SPECIFIC_DATA)
+
+            // Construct event
+            val event = EventBuilder(kind, rumor.asJson())
+                .tags(tags)
+                .finalizeAsync(Keys.generate())
+
+            client?.database()?.saveEvent(event)
+        } catch (e: Throwable) {
+            println("Failed to set cached rumor: ${e.message}")
+        }
+    }
+
+    suspend fun getChatRooms(): Set<Room>? {
+        try {
+            val userPubkey =
+                signer.getPublicKeyAsync() ?: throw IllegalStateException("User not signed in")
+
+            val kind = Kind.fromStd(KindStandard.APPLICATION_SPECIFIC_DATA)
+            val kTag = SingleLetterTag.lowercase(Alphabet.K)
+
+            // Get all DM events
+            val filter = Filter().kind(kind).customTags(kTag, listOf("14", "dm"))
+            val events = client?.database()?.query(filter)
+
+            // Collect rooms
+            val roomsMap: MutableMap<Long, Room> = mutableMapOf()
+
+            events
+                ?.toVec()
+                ?.map { UnsignedEvent.fromJson(it.content()) }
+                ?.filter { it.tags().publicKeys().isNotEmpty() }
+                ?.forEach { event ->
+                    val newRoom = Room.new(rumor = event, userPubkey = userPubkey)
+                    val existingRoom = roomsMap[newRoom.id]
+
+                    // Check if the room already exists
+                    if (existingRoom == null || newRoom.createdAt.asSecs() > existingRoom.createdAt.asSecs()) {
+                        val rTag = SingleLetterTag.lowercase(Alphabet.R)
+                        val filter = Filter().kind(kind).pubkey(userPubkey)
+                            .customTag(rTag, newRoom.id.toString())
+
+                        // Determine if it's an ongoing room
+                        val isOngoing =
+                            client?.database()?.query(filter)?.toVec()?.isNotEmpty() ?: false
+
+                        // Append room to map
+                        roomsMap[newRoom.id] =
+                            if (isOngoing) newRoom.copy(kind = RoomKind.Ongoing) else newRoom
+                    }
+                }
+
+            return roomsMap.values.sortedByDescending { it.createdAt.asSecs() }.toSet()
+        } catch (e: Exception) {
+            println("Failed to get chat rooms: ${e.message}")
+            return null
+        }
+    }
+
+    suspend fun getChatRoomMessages(roomId: Long): List<UnsignedEvent> {
+        try {
+            val kind = Kind.fromStd(KindStandard.APPLICATION_SPECIFIC_DATA)
+            val filter = Filter().kind(kind).reference(roomId.toString())
+            val events = client?.database()?.query(filter)
+
+            // Merge the events
+            return events
+                ?.toVec()
+                ?.map { UnsignedEvent.fromJson(it.content()).ensureId() }
+                // Filter out events without public keys (receivers)
+                ?.filter { it.tags().publicKeys().isNotEmpty() }
+                ?.sortedByDescending { it.createdAt().asSecs() } ?: emptyList()
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to get chat room messages: ${e.message}", e)
+        }
+    }
+
+    suspend fun chatRoomConnect(members: List<PublicKey>) {
+        try {
+            members.forEach { member ->
+                val kind = Kind.fromStd(KindStandard.INBOX_RELAYS)
+                val filter = Filter().kind(kind).author(member).limit(1u)
+
+                val stream = client?.streamEvents(
+                    target = ReqTarget.auto(listOf(filter)),
+                    id = null,
+                    timeout = Duration.parse("3s"),
+                    policy = ReqExitPolicy.ExitOnEose
+                )
+
+                stream?.next()?.let { res ->
+                    val event = res.event ?: return@let
+                    connectMsgRelays(event)
+                }
+            }
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to fetch relays: ${e.message}", e)
+        }
+    }
+
+    suspend fun connectMsgRelays(event: Event) {
+        try {
+            val urls = nip17ExtractRelayList(event)
+            for (url in urls) {
+                client?.addRelay(url, RelayCapabilities.gossip())
+                client?.connectRelay(url)
+            }
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to connect to relays: ${e.message}", e)
+        }
+    }
+
+    suspend fun sendMessage(
+        to: Set<PublicKey>,
+        content: String,
+        subject: String? = null,
+        replies: List<EventId> = emptyList(),
+        onRumorCreated: ((UnsignedEvent) -> Unit)? = null,
+    ) {
+        try {
+            val currentUser =
+                signer.getPublicKeyAsync() ?: throw IllegalStateException("User not signed in")
+
+            val tags = mutableListOf<Tag>()
+
+            // Add a subject tag if provided
+            if (subject != null) {
+                tags.add(Tag.custom("subject", listOf(subject)))
+            }
+
+            // Add event tags for replies
+            if (replies.isNotEmpty()) {
+                replies.forEach { replyId ->
+                    tags.add(Tag.event(replyId))
+                }
+            }
+
+            // Add public key tags for each recipient
+            to.forEach { pubkey ->
+                tags.add(Tag.publicKey(pubkey))
+            }
+
+            for (receiver in setOf(currentUser) + to) {
+                // Construct the rumor event
+                // NEVER SIGN this event with the current user signer
+                val rumor = EventBuilder(Kind.fromStd(KindStandard.PRIVATE_DIRECT_MESSAGE), content)
+                    .tags(tags)
+                    .finalizeUnsigned(currentUser)
+                    .ensureId()
+
+                // Emit the rumor to the chat screen
+                if (receiver == currentUser) {
+                    onRumorCreated?.invoke(rumor)
+                }
+
+                // Construct the gift wrap event
+                val gift = nip59MakeGiftWrapAsync(
+                    signer = signer,
+                    receiverPubkey = receiver,
+                    rumor = rumor,
+                    extraTags = listOf(
+                        Tag.custom("k", listOf("14"))
+                    )
+                )
+
+                // Send the event to receiver's NIP-17 relays
+                val output = client?.sendEvent(
+                    event = gift,
+                    target = SendEventTarget.toNip17(),
+                    ackPolicy = AckPolicy.none(),
+                    authenticationTimeout = Duration.parse("2s")
+                )
+
+                if (output != null) {
+                    // Keep track of sent events
+                    sentEvents[output.id] = emptyList()
+
+                    // Keep track of rumor IDs
+                    val id = rumor.id() ?: throw IllegalStateException("Rumor ID is null")
+                    rumorMap[id] = output.id
+
+                    // Collect failed outputs
+                    output.failed.forEach { (relayUrl, reason) ->
+                        println("Failed to send event to relay $relayUrl: $reason")
+                    }
+                }
+            }
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to send message: ${e.message}", e)
+        }
+    }
+}

shared/src/commonMain/kotlin/su/reya/coop/nostr/Nostr.kt

@@ -0,0 +1,267 @@
+package su.reya.coop.nostr
+
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asSharedFlow
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.supervisorScope
+import rust.nostr.sdk.AsyncNostrSigner
+import rust.nostr.sdk.Client
+import rust.nostr.sdk.ClientBuilder
+import rust.nostr.sdk.ClientNotification
+import rust.nostr.sdk.Event
+import rust.nostr.sdk.EventId
+import rust.nostr.sdk.GossipConfig
+import rust.nostr.sdk.Keys
+import rust.nostr.sdk.KindStandard
+import rust.nostr.sdk.LogLevel
+import rust.nostr.sdk.Metadata
+import rust.nostr.sdk.NostrDatabase
+import rust.nostr.sdk.NostrGossip
+import rust.nostr.sdk.PublicKey
+import rust.nostr.sdk.RelayMessageEnum
+import rust.nostr.sdk.SignerAuthenticator
+import rust.nostr.sdk.SleepWhenIdle
+import rust.nostr.sdk.Timestamp
+import rust.nostr.sdk.UnsignedEvent
+import rust.nostr.sdk.initLogger
+import kotlin.time.Duration
+
+object NostrManager {
+    val instance = Nostr()
+
+    val BOOTSTRAP_RELAYS = listOf(
+        "wss://relay.primal.net",
+        "wss://relay.ditto.pub",
+        "wss://user.kindpag.es",
+    )
+
+    val INDEXER_RELAY = listOf(
+        "wss://indexer.coracle.social",
+    )
+
+    val ALL_RELAYS = BOOTSTRAP_RELAYS + INDEXER_RELAY
+}
+
+class Nostr {
+    var client: Client? = null
+        private set
+    var signer: UniversalSigner = UniversalSigner(Keys.generate())
+        private set
+
+    val messages = MessageManager(this)
+    val profiles = ProfileManager(this)
+    val relays = RelayManager(this)
+
+    private val isInitialized = MutableStateFlow(false)
+
+    private val _newEvents = MutableSharedFlow<UnsignedEvent>(extraBufferCapacity = 100)
+    val newEvents = _newEvents.asSharedFlow()
+
+    suspend fun emitNewEvent(event: UnsignedEvent) {
+        _newEvents.emit(event)
+    }
+
+    suspend fun init(
+        dbPath: String,
+        logLevel: LogLevel = LogLevel.WARN
+    ) {
+        try {
+            if (isInitialized.value) return
+
+            // Initialize the logger for nostr client
+            initLogger(logLevel)
+
+            // Initialize configurations for nostr client
+            val lmdb = NostrDatabase.lmdb(dbPath)
+            val gossip = NostrGossip.inMemory()
+
+            // Initialize the authenticator
+            val authenticator = SignerAuthenticator(signer)
+            val idleTimeout = Duration.parse("5m")
+
+            client =
+                ClientBuilder()
+                    .authenticator(authenticator)
+                    .database(lmdb)
+                    .gossip(gossip)
+                    .gossipConfig(
+                        GossipConfig()
+                            .noBackgroundRefresh()
+                            .fetchTimeout(Duration.parse("2s"))
+                    )
+                    .verifySubscriptions(false)
+                    .sleepWhenIdle(SleepWhenIdle.Enabled(idleTimeout))
+                    .build()
+
+            isInitialized.value = true
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to initialize Nostr client: ${e.message}", e)
+        }
+    }
+
+    suspend fun waitUntilInitialized() {
+        isInitialized.first { it }
+    }
+
+    suspend fun connectBootstrapRelays() {
+        relays.connectBootstrapRelays()
+    }
+
+    suspend fun reconnect() {
+        relays.reconnect()
+    }
+
+    suspend fun disconnect() {
+        relays.disconnect()
+    }
+
+    suspend fun prune() {
+        try {
+            client?.database()?.wipe()
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to prune database: ${e.message}", e)
+        }
+    }
+
+    suspend fun setSigner(new: AsyncNostrSigner) {
+        try {
+            signer.switch(new)
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to set signer: ${e.message}", e)
+        }
+    }
+
+    fun isSignedByUser(event: Event): Boolean {
+        return try {
+            signer.publicKeyFlow.value == event.author()
+        } catch (e: Exception) {
+            println("Failed to check if event is signed by user: ${e.message}")
+            false
+        }
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    suspend fun handleNotifications(
+        onMetadataUpdate: (PublicKey, Metadata) -> Unit,
+        onContactListUpdate: (List<PublicKey>) -> Unit,
+        onNewMessage: (UnsignedEvent) -> Unit,
+    ) = supervisorScope {
+        val now = Timestamp.now()
+        val processedEvent = mutableSetOf<EventId>()
+        val notifications = client?.notifications() ?: return@supervisorScope
+
+        val giftWrapQueue = Channel<Event>(Channel.UNLIMITED)
+        var processedCount = 0
+        var eoseReceived = false
+
+        launch(Dispatchers.Default) {
+            for (event in giftWrapQueue) {
+                val rumor = messages.extractRumor(event)
+                processedCount++
+
+                // Trigger new message notification
+                if (rumor != null) {
+                    if (rumor.createdAt().asSecs() >= now.asSecs()) {
+                        onNewMessage(rumor)
+                    }
+                }
+
+                // Update sync state
+                messages.updateSyncState {
+                    it.copy(
+                        processedCount = processedCount,
+                        isSyncing = !eoseReceived || !giftWrapQueue.isEmpty
+                    )
+                }
+            }
+        }
+
+        while (true) {
+            val notification = notifications.next() ?: continue
+
+            when (notification) {
+                is ClientNotification.Message -> {
+                    val relayUrl = notification.relayUrl
+
+                    when (val message = notification.message.asEnum()) {
+                        is RelayMessageEnum.EventMsg -> {
+                            val event = message.event
+
+                            // Prevent processing duplicate events
+                            if (processedEvent.contains(event.id())) continue
+                            processedEvent.add(event.id())
+
+                            when (event.kind().asStd()) {
+                                KindStandard.METADATA -> {
+                                    try {
+                                        val metadata = Metadata.fromJson(event.content())
+                                        onMetadataUpdate(event.author(), metadata)
+                                    } catch (e: Exception) {
+                                        println("Failed to parse metadata: $e")
+                                    }
+                                }
+
+                                KindStandard.CONTACT_LIST -> {
+                                    if (isSignedByUser(event = event)) {
+                                        val pubkeys = event.tags().publicKeys()
+                                        // Get mutual contacts
+                                        profiles.syncMutualContacts(pubkeys)
+                                        // Emit contact list update
+                                        onContactListUpdate(pubkeys)
+                                    }
+                                }
+
+                                KindStandard.INBOX_RELAYS -> {
+                                    // Get all gift wrap events for the current user
+                                    if (isSignedByUser(event = event)) {
+                                        messages.getUserMessages(msgRelayList = event)
+                                    }
+                                }
+
+                                KindStandard.GIFT_WRAP -> {
+                                    giftWrapQueue.send(event)
+                                }
+
+                                else -> {}
+                            }
+                        }
+
+                        is RelayMessageEnum.EndOfStoredEvents -> {
+                            if (message.subscriptionId == "gift-wraps") {
+                                eoseReceived = true
+                                if (giftWrapQueue.isEmpty) {
+                                    messages.updateSyncState { it.copy(isSyncing = false) }
+                                }
+                            }
+                        }
+
+                        is RelayMessageEnum.Ok -> {
+                            if (messages.sentEvents.containsKey(message.eventId)) {
+                                val currentRelays =
+                                    messages.sentEvents[message.eventId] ?: emptyList()
+                                messages.sentEvents[message.eventId] = currentRelays + relayUrl
+                            }
+                        }
+
+                        else -> {
+                            /* Ignore other message types */
+                        }
+                    }
+                }
+
+                is ClientNotification.Shutdown -> {
+                    break
+                }
+
+                else -> {
+                    /* Ignore other message types */
+                }
+            }
+        }
+    }
+}

shared/src/commonMain/kotlin/su/reya/coop/nostr/ProfileManager.kt

@@ -0,0 +1,352 @@
+package su.reya.coop.nostr
+
+import io.ktor.client.HttpClient
+import io.ktor.client.call.body
+import io.ktor.client.request.get
+import io.ktor.client.statement.HttpResponse
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.asSharedFlow
+import rust.nostr.sdk.AckPolicy
+import rust.nostr.sdk.Client
+import rust.nostr.sdk.Contact
+import rust.nostr.sdk.EventBuilder
+import rust.nostr.sdk.Filter
+import rust.nostr.sdk.Keys
+import rust.nostr.sdk.Kind
+import rust.nostr.sdk.KindStandard
+import rust.nostr.sdk.Metadata
+import rust.nostr.sdk.MetadataRecord
+import rust.nostr.sdk.Nip05Address
+import rust.nostr.sdk.Nip05Profile
+import rust.nostr.sdk.PublicKey
+import rust.nostr.sdk.RelayCapabilities
+import rust.nostr.sdk.RelayUrl
+import rust.nostr.sdk.ReqExitPolicy
+import rust.nostr.sdk.ReqTarget
+import rust.nostr.sdk.SendEventTarget
+import rust.nostr.sdk.SubscribeAutoCloseOptions
+import rust.nostr.sdk.Timestamp
+import kotlin.time.Duration
+
+class ProfileManager(private val nostr: Nostr) {
+    private val client: Client? get() = nostr.client
+    private val signer: UniversalSigner get() = nostr.signer
+
+    private val _metadataUpdates =
+        MutableSharedFlow<Pair<PublicKey, Metadata>>(extraBufferCapacity = 100)
+    val metadataUpdates = _metadataUpdates.asSharedFlow()
+
+    private val _contactListUpdates = MutableSharedFlow<List<PublicKey>>(extraBufferCapacity = 100)
+    val contactListUpdates = _contactListUpdates.asSharedFlow()
+
+    suspend fun emitMetadataUpdate(pubkey: PublicKey, metadata: Metadata) {
+        _metadataUpdates.emit(pubkey to metadata)
+    }
+
+    suspend fun emitContactListUpdate(contacts: List<PublicKey>) {
+        _contactListUpdates.emit(contacts)
+    }
+
+    suspend fun getUserMetadata() {
+        try {
+            val author =
+                signer.getPublicKeyAsync() ?: throw IllegalStateException("User not signed in")
+
+            // Get the latest metadata event
+            val metadataFilter =
+                Filter().kind(Kind.fromStd(KindStandard.METADATA)).author(author).limit(1u)
+
+            // Get the latest contact list event
+            val contactFilter =
+                Filter().kind(Kind.fromStd(KindStandard.CONTACT_LIST)).author(author).limit(1u)
+
+            // Get the latest messaging relay list event
+            val msgRelayFilter =
+                Filter().kind(Kind.fromStd(KindStandard.INBOX_RELAYS)).author(author).limit(1u)
+
+            // Construct a target that includes all filters
+            val target = ReqTarget.auto(listOf(metadataFilter, contactFilter, msgRelayFilter))
+            val opts = SubscribeAutoCloseOptions().exitPolicy(ReqExitPolicy.ExitOnEose)
+
+            client?.subscribe(target = target, id = "user-metadata", closeOn = opts)
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to fetch user metadata: ${e.message}", e)
+        }
+    }
+
+    suspend fun syncMutualContacts(pubkeys: List<PublicKey>) {
+        try {
+            val kind = Kind.fromStd(KindStandard.CONTACT_LIST)
+            val filter = Filter().kind(kind).authors(pubkeys).limit(pubkeys.size.toULong())
+            val relays = NostrManager.BOOTSTRAP_RELAYS.map { RelayUrl.parse(it) }
+
+            client?.sync(filter, relays)
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to fetch mutual contacts: ${e.message}", e)
+        }
+    }
+
+    suspend fun createIdentity(keys: Keys, name: String, bio: String?, picture: String?) {
+        // Send relay list event
+        val relayList = nostr.relays.getDefaultRelayList()
+        val relayListEvent = EventBuilder.relayList(relayList).finalizeAsync(keys)
+
+        client?.sendEvent(
+            event = relayListEvent,
+            target = SendEventTarget.broadcast(),
+            ackPolicy = AckPolicy.all(),
+            okTimeout = Duration.parse("3s")
+        )
+
+        // Send messaging relay list event
+        val msgRelayList = nostr.relays.getDefaultMsgRelayList()
+        val msgRelayListEvent = EventBuilder.nip17RelayList(msgRelayList).finalizeAsync(keys)
+
+        client?.sendEvent(
+            event = msgRelayListEvent,
+            target = SendEventTarget.toNip65(),
+            ackPolicy = AckPolicy.none()
+        )
+
+        // Send metadata event
+        val metadata =
+            Metadata.fromRecord(MetadataRecord(displayName = name, about = bio, picture = picture))
+        val metadataEvent = EventBuilder.metadata(metadata).finalizeAsync(keys)
+
+        client?.sendEvent(
+            event = metadataEvent,
+            target = SendEventTarget.broadcast(),
+            ackPolicy = AckPolicy.none()
+        )
+
+        // Send contact list event
+        val defaultContact =
+            Contact(PublicKey.parse("npub1j3rz3ndl902lya6ywxvy5c983lxs8mpukqnx4pa4lt5wrykwl5ys7wpw3x"))
+        val contactListEvent = EventBuilder.contactList(listOf(defaultContact)).finalizeAsync(keys)
+
+        client?.sendEvent(
+            event = contactListEvent,
+            target = SendEventTarget.toNip65(),
+            ackPolicy = AckPolicy.none()
+        )
+
+        nostr.setSigner(keys)
+    }
+
+    suspend fun updateProfile(
+        name: String? = null,
+        bio: String? = null,
+        picture: String? = null
+    ): Metadata {
+        val currentUser =
+            signer.getPublicKeyAsync() ?: throw IllegalStateException("User not signed in")
+
+        try {
+            val record = getLatestMetadata(currentUser)?.asRecord() ?: MetadataRecord()
+            val newRecord = record.copy(
+                displayName = name ?: record.displayName,
+                about = bio ?: record.about,
+                picture = picture ?: record.picture
+            )
+            val newMetadata = Metadata.fromRecord(newRecord)
+            val event = EventBuilder.metadata(newMetadata).finalizeAsync(signer)
+
+            client?.sendEvent(
+                event = event,
+                target = SendEventTarget.broadcast(),
+                ackPolicy = AckPolicy.none()
+            )
+
+            return newMetadata
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to update identity: ${e.message}", e)
+        }
+    }
+
+    private suspend fun getLatestMetadata(pubkey: PublicKey): Metadata? {
+        return try {
+            val kind = Kind.fromStd(KindStandard.METADATA)
+            val filter = Filter().kind(kind).author(pubkey).limit(1u)
+            val event = client?.database()?.query(filter)?.first() ?: return null
+
+            Metadata.fromJson(event.content())
+        } catch (e: Exception) {
+            println("Failed to get latest metadata: ${e.message}")
+            null
+        }
+    }
+
+    suspend fun getAllCacheMetadata(): Map<PublicKey, Metadata> {
+        try {
+            val filter = Filter().kind(Kind.fromStd(KindStandard.METADATA)).limit(100u)
+            val events = client?.database()?.query(filter)
+            val results = mutableMapOf<PublicKey, Metadata>()
+
+            events?.toVec()?.forEach { event ->
+                try {
+                    val metadata = Metadata.fromJson(event.content())
+                    results[event.author()] = metadata
+                } catch (e: Exception) {
+                    println("Failed to parse metadata: $e")
+                }
+            }
+
+            return results
+        } catch (e: Exception) {
+            println("Failed to get all cache metadata: ${e.message}")
+            return emptyMap()
+        }
+    }
+
+    suspend fun fetchMetadataBatch(keys: List<PublicKey>) {
+        try {
+            val limit = keys.size.toULong() * 2u
+            val opts = SubscribeAutoCloseOptions().exitPolicy(ReqExitPolicy.ExitOnEose)
+
+            // Construct a filter for metadata events
+            val filter = Filter()
+                .kind(Kind.fromStd(KindStandard.METADATA))
+                .authors(keys)
+                .limit(limit)
+
+            // Construct request target
+            val target = mutableMapOf<RelayUrl, List<Filter>>()
+            NostrManager.BOOTSTRAP_RELAYS.forEach { relay ->
+                target[RelayUrl.parse(relay)] = listOf(filter)
+            }
+
+            client?.subscribe(target = ReqTarget.manual(target), closeOn = opts)
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to fetch metadata batch: ${e.message}", e)
+        }
+    }
+
+    suspend fun setContactList(contacts: List<PublicKey>) {
+        try {
+            val contactList = contacts.map { Contact(it) }
+            val event = EventBuilder.contactList(contactList).finalizeAsync(signer)
+
+            client?.sendEvent(
+                event = event,
+                target = SendEventTarget.broadcast(),
+                ackPolicy = AckPolicy.none(),
+            )
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to set contact list: ${e.message}", e)
+        }
+    }
+
+    suspend fun profileFromAddress(client: HttpClient, address: Nip05Address): Nip05Profile {
+        try {
+            val response: HttpResponse = client.get(address.url())
+            val bodyString: String = response.body()
+
+            return Nip05Profile.fromJson(address, bodyString)
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to fetch profile from address: ${e.message}", e)
+        }
+    }
+
+    suspend fun searchByAddress(query: String): PublicKey {
+        try {
+            val address = Nip05Address.parse(query)
+            val profile = profileFromAddress(HttpClient(), address)
+
+            return profile.publicKey()
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to search address: ${e.message}", e)
+        }
+    }
+
+    suspend fun searchByNostr(query: String): List<PublicKey> {
+        try {
+            // Add search relay
+            val searchRelay = RelayUrl.parse("wss://antiprimal.net")
+            if (client?.relay(searchRelay) == null) {
+                client?.addRelay(url = searchRelay, capabilities = RelayCapabilities.read())
+                client?.connectRelay(searchRelay)
+            }
+
+            val kinds = listOf(Kind.fromStd(KindStandard.METADATA))
+            val filter = Filter().kinds(kinds).search(query).limit(10u)
+            val target = ReqTarget.manual(mapOf(searchRelay to listOf(filter)))
+
+            val stream = client?.streamEvents(
+                target = target,
+                id = "search",
+                timeout = Duration.parse("3s"),
+                policy = ReqExitPolicy.ExitOnEose
+            )
+
+            // Collect the results
+            val results = mutableListOf<PublicKey>()
+
+            // Keep searching until the stream is closed or timeout
+            stream?.next()?.let { event ->
+                val event = event.event ?: return@let
+                results.add(event.author())
+            }
+
+            return results
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to search nostr: ${e.message}", e)
+        }
+    }
+
+    suspend fun verifyActivity(pubkey: PublicKey): Timestamp? {
+        try {
+            val filter = Filter().author(pubkey).limit(3u)
+            val target = mutableMapOf<RelayUrl, List<Filter>>()
+            NostrManager.BOOTSTRAP_RELAYS.forEach { relay ->
+                target[RelayUrl.parse(relay)] = listOf(filter)
+            }
+
+            val events = client?.fetchEvents(
+                target = ReqTarget.manual(target),
+                timeout = Duration.parse("3s")
+            )
+
+            return events?.first()?.createdAt()
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to get latest activity: ${e.message}", e)
+        }
+    }
+
+    suspend fun verifyContact(pubkey: PublicKey): Boolean {
+        try {
+            val currentUser =
+                signer.getPublicKeyAsync() ?: throw IllegalStateException("User not signed in")
+
+            val kind = Kind.fromStd(KindStandard.CONTACT_LIST)
+            val filter = Filter().kind(kind).author(currentUser).limit(1u)
+
+            val events = client?.database()?.query(filter)
+            val pubkeys = events?.first()?.tags()?.publicKeys() ?: listOf()
+
+            return pubkeys.contains(pubkey)
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to get mutual contacts: ${e.message}", e)
+        }
+    }
+
+    suspend fun mutualContacts(pubkey: PublicKey): Set<PublicKey> {
+        try {
+            val currentUser =
+                signer.getPublicKeyAsync() ?: throw IllegalStateException("User not signed in")
+
+            val kind = Kind.fromStd(KindStandard.CONTACT_LIST)
+            val filter = Filter().kind(kind).pubkey(pubkey).limit(1u)
+
+            val events = client?.database()?.query(filter)
+            val contacts = mutableSetOf<PublicKey>()
+
+            events?.toVec()?.filter { it.author() != currentUser }?.forEach { event ->
+                contacts.add(event.author())
+            }
+
+            return contacts.toSet()
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to get mutual contacts: ${e.message}", e)
+        }
+    }
+}

shared/src/commonMain/kotlin/su/reya/coop/nostr/RelayManager.kt

@@ -0,0 +1,183 @@
+package su.reya.coop.nostr
+
+import rust.nostr.sdk.AckPolicy
+import rust.nostr.sdk.Client
+import rust.nostr.sdk.EventBuilder
+import rust.nostr.sdk.Filter
+import rust.nostr.sdk.Kind
+import rust.nostr.sdk.KindStandard
+import rust.nostr.sdk.PublicKey
+import rust.nostr.sdk.RelayCapabilities
+import rust.nostr.sdk.RelayMetadata
+import rust.nostr.sdk.RelayStatus
+import rust.nostr.sdk.RelayUrl
+import rust.nostr.sdk.ReqExitPolicy
+import rust.nostr.sdk.ReqTarget
+import rust.nostr.sdk.SendEventTarget
+import rust.nostr.sdk.SubscribeAutoCloseOptions
+import rust.nostr.sdk.extractRelayList
+import rust.nostr.sdk.nip17ExtractRelayList
+import kotlin.time.Duration
+
+class RelayManager(private val nostr: Nostr) {
+    private val client: Client? get() = nostr.client
+    private val signer: UniversalSigner get() = nostr.signer
+
+    suspend fun connectBootstrapRelays() {
+        NostrManager.BOOTSTRAP_RELAYS.forEach { url ->
+            client?.addRelay(RelayUrl.parse(url))
+        }
+        NostrManager.INDEXER_RELAY.forEach { url ->
+            client?.addRelay(
+                url = RelayUrl.parse(url),
+                capabilities = RelayCapabilities.gossip()
+            )
+        }
+        // Connect to all bootstrap relays
+        client?.connect()
+    }
+
+    suspend fun reconnect() {
+        NostrManager.ALL_RELAYS.forEach { url ->
+            try {
+                client?.relay(RelayUrl.parse(url)).let { relay ->
+                    if (relay != null) {
+                        if (relay.status() != RelayStatus.CONNECTED) {
+                            relay.connect()
+                        }
+                    }
+                }
+            } catch (e: Exception) {
+                println("Failed to reconnect relay: ${e.message}")
+            }
+        }
+    }
+
+    suspend fun disconnect() {
+        NostrManager.ALL_RELAYS.forEach { url ->
+            try {
+                client?.disconnectRelay(RelayUrl.parse(url))
+            } catch (e: Exception) {
+                println("Failed to disconnect relay: ${e.message}")
+            }
+        }
+    }
+
+    internal suspend fun getDefaultRelayList(): Map<RelayUrl, RelayMetadata> {
+        // Construct a list of relays
+        val relayList = mapOf(
+            RelayUrl.parse("wss://relay.damus.io") to RelayMetadata.READ,
+            RelayUrl.parse("wss://relay.primal.net") to RelayMetadata.READ,
+            RelayUrl.parse("wss://relay.nostr.net") to RelayMetadata.WRITE,
+            RelayUrl.parse("wss://nostr.superfriends.online") to RelayMetadata.WRITE
+        )
+
+        // Ensure all relays are added and connected
+        relayList.forEach { (relay, metadata) ->
+            client?.addRelay(
+                url = relay,
+                capabilities =
+                    when (metadata) {
+                        RelayMetadata.READ -> RelayCapabilities.read()
+                        RelayMetadata.WRITE -> RelayCapabilities.write()
+                    }
+            )
+            client?.connectRelay(relay)
+        }
+
+        return relayList
+    }
+
+    internal suspend fun getDefaultMsgRelayList(): List<RelayUrl> {
+        // Construct a list of messaging relays
+        val msgRelayList = listOf(
+            RelayUrl.parse("wss://auth.nostr1.com"),
+            RelayUrl.parse("wss://nip17.com"),
+        )
+
+        // Ensure all relays are added and connected
+        msgRelayList.forEach { relay ->
+            client?.addRelay(relay, RelayCapabilities.none())
+            client?.connectRelay(relay)
+        }
+
+        return msgRelayList
+    }
+
+    suspend fun setMsgRelays(urls: List<RelayUrl>) {
+        try {
+            val event = EventBuilder.nip17RelayList(urls).finalizeAsync(signer)
+
+            client?.sendEvent(
+                event = event,
+                target = SendEventTarget.toNip65(),
+                ackPolicy = AckPolicy.none(),
+            )
+
+            val currentUser =
+                signer.getPublicKeyAsync() ?: throw IllegalStateException("User not signed in")
+
+            val kind = Kind.fromStd(KindStandard.INBOX_RELAYS)
+            val filter = Filter().kind(kind).author(currentUser).limit(1u)
+
+            val target = ReqTarget.auto(listOf(filter))
+            val opts = SubscribeAutoCloseOptions().exitPolicy(ReqExitPolicy.ExitOnEose)
+
+            client?.subscribe(target = target, closeOn = opts)
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to set msg relays: ${e.message}", e)
+        }
+    }
+
+    suspend fun getMsgRelays(publicKey: PublicKey): List<RelayUrl> {
+        try {
+            val kind = Kind.fromStd(KindStandard.INBOX_RELAYS)
+            val filter = Filter().kind(kind).author(publicKey).limit(1u)
+            val events = client?.database()?.query(filter)
+            val event = events?.first() ?: return emptyList()
+
+            return nip17ExtractRelayList(event)
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to get msg relays: ${e.message}", e)
+        }
+    }
+
+    suspend fun fetchMsgRelays(publicKey: PublicKey): List<RelayUrl> {
+        try {
+            val kind = Kind.fromStd(KindStandard.INBOX_RELAYS)
+            val filter = Filter().kind(kind).author(publicKey).limit(1u)
+            val target = ReqTarget.auto(listOf(filter))
+            val events = client?.fetchEvents(target, timeout = Duration.parse("3s"))
+
+            return nip17ExtractRelayList(events?.toVec()?.firstOrNull() ?: return emptyList())
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to fetch msg relays: ${e.message}", e)
+        }
+    }
+
+    suspend fun getRelayList(publicKey: PublicKey): Map<RelayUrl, RelayMetadata?> {
+        try {
+            val kind = Kind.fromStd(KindStandard.RELAY_LIST)
+            val filter = Filter().kind(kind).author(publicKey).limit(1u)
+            val events = client?.database()?.query(filter)
+
+            return extractRelayList(events?.toVec()?.firstOrNull() ?: return emptyMap())
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to get relay list: ${e.message}", e)
+        }
+    }
+
+    suspend fun setRelaylist(relays: Map<RelayUrl, RelayMetadata?>) {
+        try {
+            val event = EventBuilder.relayList(relays).finalizeAsync(signer)
+
+            client?.sendEvent(
+                event = event,
+                target = SendEventTarget.broadcast(),
+                ackPolicy = AckPolicy.none(),
+            )
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to set msg relays: ${e.message}", e)
+        }
+    }
+}

shared/src/commonMain/kotlin/su/reya/coop/nostr/Signer.kt

@@ -1,5 +1,7 @@
-package su.reya.coop
+package su.reya.coop.nostr
 
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
 import kotlinx.coroutines.withTimeoutOrNull
@@ -16,9 +18,8 @@ class UniversalSigner(initialSigner: AsyncNostrSigner) : AsyncNostrSigner {
     @Volatile
     private var signer: AsyncNostrSigner = initialSigner
 
-    @Volatile
+    private val _publicKeyFlow = MutableStateFlow<PublicKey?>(null)
-    var currentUser: PublicKey? = null
+    val publicKeyFlow = _publicKeyFlow.asStateFlow()
-        private set
 
     /**
      * Get the current signer.
@@ -37,7 +38,7 @@ class UniversalSigner(initialSigner: AsyncNostrSigner) : AsyncNostrSigner {
             throw IllegalStateException("Failed to get public key from signer", e)
         }
         signer = newSigner
-        currentUser = pubkey
+        _publicKeyFlow.value = pubkey
     }
 
     override suspend fun getPublicKeyAsync(): PublicKey? {

shared/src/commonMain/kotlin/su/reya/coop/repository/ErrorRepository.kt

@@ -0,0 +1,13 @@
+package su.reya.coop.repository
+
+import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.flow.receiveAsFlow
+
+object ErrorRepository {
+    private val _errors = Channel<String>(Channel.BUFFERED)
+    val errors = _errors.receiveAsFlow()
+
+    fun showError(message: String) {
+        _errors.trySend(message)
+    }
+}

shared/src/commonMain/kotlin/su/reya/coop/repository/MediaRepository.kt

@@ -0,0 +1,39 @@
+package su.reya.coop.repository
+
+import io.ktor.client.HttpClient
+import io.ktor.client.plugins.contentnegotiation.ContentNegotiation
+import io.ktor.serialization.kotlinx.json.json
+import kotlinx.serialization.json.Json
+import rust.nostr.sdk.AsyncNostrSigner
+import su.reya.coop.blossom.BlossomClient
+
+class MediaRepository {
+    private val httpClient = HttpClient {
+        install(ContentNegotiation) {
+            json(Json {
+                ignoreUnknownKeys = true
+                prettyPrint = true
+                isLenient = true
+            })
+        }
+    }
+
+    suspend fun blossomUpload(
+        signer: AsyncNostrSigner,
+        file: ByteArray,
+        contentType: String? = "image/jpeg"
+    ): String? {
+        return try {
+            val blossom = BlossomClient(url = "https://blossom.band", client = httpClient)
+            val descriptor = blossom.upload(
+                file = file,
+                contentType = contentType,
+                signer = signer,
+            )
+            descriptor?.url
+        } catch (e: Exception) {
+            println("Upload failed: ${e.message}")
+            null
+        }
+    }
+}

shared/src/commonMain/kotlin/su/reya/coop/viewmodel/AuthViewModel.kt

@@ -0,0 +1,259 @@
+package su.reya.coop.viewmodel
+
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withTimeoutOrNull
+import rust.nostr.sdk.AsyncNostrSigner
+import rust.nostr.sdk.Keys
+import rust.nostr.sdk.NostrConnect
+import rust.nostr.sdk.NostrConnectUri
+import rust.nostr.sdk.PublicKey
+import su.reya.coop.nostr.ExternalSignerHandler
+import su.reya.coop.nostr.ExternalSignerProxy
+import su.reya.coop.nostr.Nostr
+import su.reya.coop.nostr.SignerPermissions
+import su.reya.coop.repository.MediaRepository
+import su.reya.coop.storage.SecretStorage
+import kotlin.time.Duration.Companion.seconds
+
+data class AuthState(
+    val isBusy: Boolean = false,
+    val signerRequired: Boolean? = null,
+    val isNotificationBannerDismissed: Boolean = false,
+)
+
+class AuthViewModel(
+    private val nostr: Nostr,
+    private val secretStore: SecretStorage,
+    private val externalSignerHandler: ExternalSignerHandler? = null,
+) : BaseViewModel() {
+    private val mediaRepository = MediaRepository()
+
+    companion object {
+        private const val KEY_USER_SIGNER = "user_signer"
+        private const val KEY_APP_KEYS = "app_keys"
+        private const val KEY_BANNER_DISMISSED = "notification_banner_dismissed"
+    }
+
+    private val _state = MutableStateFlow(AuthState())
+    val state = _state.asStateFlow()
+
+    init {
+        // Check if the notification banner has been dismissed
+        checkNotificationBannerDismissedStatus()
+
+        // Check local stored secret (secret key or bunker)
+        login()
+    }
+
+    private fun checkNotificationBannerDismissedStatus() {
+        viewModelScope.launch {
+            val dismissed = secretStore.get(KEY_BANNER_DISMISSED) == "true"
+            _state.update { it.copy(isNotificationBannerDismissed = dismissed) }
+        }
+    }
+
+    private fun login() {
+        viewModelScope.launch {
+            try {
+                val secret = withTimeoutOrNull(3.seconds) {
+                    secretStore.get(KEY_USER_SIGNER)
+                }
+
+                if (secret == null) {
+                    _state.update { it.copy(signerRequired = true) }
+                    return@launch
+                }
+
+                runCatching {
+                    val signer = createSigner(secret)
+                    nostr.setSigner(signer)
+                }.onSuccess {
+                    _state.update { it.copy(signerRequired = false) }
+                }.onFailure { e ->
+                    showError("Login failed: ${e.message}")
+                    _state.update { it.copy(signerRequired = true) }
+                }
+            } catch (e: Exception) {
+                showError("Login failed: ${e.message}")
+                _state.update { it.copy(signerRequired = true) }
+            }
+        }
+    }
+
+    fun logout(onLogout: () -> Unit = {}) {
+        viewModelScope.launch {
+            try {
+                _state.update { it.copy(isBusy = true) }
+
+                // Reset the nostr signer and prune the database
+                nostr.signer.switch(Keys.generate())
+                nostr.prune()
+            } catch (e: Exception) {
+                showError("Logout encountered an error: ${e.message}")
+            } finally {
+                // Clear credentials from persistent storage
+                secretStore.clear(KEY_USER_SIGNER)
+                secretStore.clear(KEY_BANNER_DISMISSED)
+
+                // Call cleanup callback (e.g. to reset other ViewModels)
+                onLogout()
+
+                _state.update { it.copy(isBusy = false, signerRequired = true) }
+            }
+        }
+    }
+
+    fun dismissNotificationBanner() {
+        viewModelScope.launch {
+            secretStore.set(KEY_BANNER_DISMISSED, "true")
+            _state.update { it.copy(isNotificationBannerDismissed = true) }
+        }
+    }
+
+    private suspend fun getOrInitAppKeys(): Keys {
+        val secret = secretStore.get(KEY_APP_KEYS)
+
+        // If app keys are already stored, use them
+        if (secret != null) {
+            return Keys.parse(secret)
+        }
+
+        // Generate new app keys and save to the secret storage
+        val keys = Keys.generate()
+        secretStore.set(KEY_APP_KEYS, keys.secretKey().toBech32())
+
+        return keys
+    }
+
+    private suspend fun createSigner(secret: String): AsyncNostrSigner {
+        return when {
+            secret.startsWith("nsec1") -> Keys.parse(secret)
+
+            secret.startsWith("bunker://") -> {
+                val appKeys = getOrInitAppKeys()
+                val bunker = NostrConnectUri.parse(secret)
+                val timeout = 50.seconds
+                NostrConnect(uri = bunker, appKeys, timeout, null)
+            }
+
+            secret.startsWith("nip55://") -> {
+                val handler = externalSignerHandler
+                    ?: throw IllegalStateException("External signer not available on this platform")
+
+                // Format: nip55://packageName/hexPubkey
+                val parts = secret.removePrefix("nip55://").split("/", limit = 2)
+                val packageName = parts[0]
+                val pubkey = PublicKey.parse(parts[1])
+
+                handler.setPackageName(packageName)
+                ExternalSignerProxy(handler, pubkey)
+            }
+
+            else -> throw IllegalArgumentException("Invalid secret format")
+        }
+    }
+
+    suspend fun verifyIdentity(secret: String): PublicKey? {
+        try {
+            val signer = createSigner(secret)
+            if (secret.startsWith("bunker://")) {
+                showError("Please approve the connection.")
+            }
+            return signer.getPublicKeyAsync()
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+            return null
+        }
+    }
+
+    suspend fun importIdentity(secret: String) {
+        _state.update { it.copy(isBusy = true) }
+        try {
+            val signer = createSigner(secret)
+            // Update signer
+            nostr.setSigner(signer)
+            // Persist the secret in the secret storage
+            secretStore.set(KEY_USER_SIGNER, secret)
+            // Update local states
+            _state.update { it.copy(signerRequired = false, isBusy = false) }
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+            _state.update { it.copy(isBusy = false) }
+        }
+    }
+
+    suspend fun connectExternalSigner() {
+        val handler = externalSignerHandler ?: throw IllegalStateException("Signer not available")
+        _state.update { it.copy(isBusy = true) }
+        try {
+            val permissions = SignerPermissions.toJson(
+                listOf(
+                    SignerPermissions.signEvent(0),
+                    SignerPermissions.signEvent(3),
+                    SignerPermissions.signEvent(10000),
+                    SignerPermissions.signEvent(10050),
+                    SignerPermissions.signEvent(10063),
+                    SignerPermissions.signEvent(22242),
+                    SignerPermissions.signEvent(30030),
+                    SignerPermissions.signEvent(30315),
+                    SignerPermissions.nip44Encrypt(),
+                    SignerPermissions.nip44Decrypt(),
+                )
+            )
+
+            val result = handler.getPublicKey(permissions) ?: throw Exception("Rejected")
+            val signer = ExternalSignerProxy(handler, result.pubkey)
+
+            // Update signer
+            nostr.setSigner(signer)
+            // Store the signer in the secret storage
+            secretStore.set(
+                KEY_USER_SIGNER,
+                "nip55://${result.packageName}/${result.pubkey.toHex()}"
+            )
+            // Update local states
+            _state.update { it.copy(signerRequired = false, isBusy = false) }
+        } catch (e: Exception) {
+            _state.update { it.copy(isBusy = false) }
+            showError("Notice: ${e.message}")
+        }
+    }
+
+    fun isExternalSignerAvailable(): Boolean {
+        return externalSignerHandler?.isAvailable() == true
+    }
+
+    suspend fun createIdentity(
+        name: String,
+        bio: String?,
+        picture: ByteArray?,
+        contentType: String? = null
+    ) {
+        _state.update { it.copy(isBusy = true) }
+
+        val keys = Keys.generate()
+        val secret = keys.secretKey().toBech32()
+
+        try {
+            val avatarUrl = picture?.let {
+                mediaRepository.blossomUpload(nostr.signer.get(), it, contentType ?: "image/jpeg")
+            }
+
+            // Create identity
+            nostr.profiles.createIdentity(keys = keys, name = name, bio = bio, picture = avatarUrl)
+
+            // Persist the secret in the secret storage
+            secretStore.set(KEY_USER_SIGNER, secret)
+
+            // Update local states
+            _state.update { it.copy(isBusy = false, signerRequired = false) }
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+            _state.update { it.copy(isBusy = false) }
+        }
+    }
+}

shared/src/commonMain/kotlin/su/reya/coop/viewmodel/BaseViewModel.kt

@@ -0,0 +1,10 @@
+package su.reya.coop.viewmodel
+
+import androidx.lifecycle.ViewModel
+import su.reya.coop.repository.ErrorRepository
+
+abstract class BaseViewModel : ViewModel() {
+    protected fun showError(message: String) {
+        ErrorRepository.showError(message)
+    }
+}

shared/src/commonMain/kotlin/su/reya/coop/viewmodel/ChatViewModel.kt

@@ -0,0 +1,260 @@
+package su.reya.coop.viewmodel
+
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.asSharedFlow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import rust.nostr.sdk.EventBuilder
+import rust.nostr.sdk.EventId
+import rust.nostr.sdk.Kind
+import rust.nostr.sdk.KindStandard
+import rust.nostr.sdk.PublicKey
+import rust.nostr.sdk.RelayUrl
+import rust.nostr.sdk.Tag
+import rust.nostr.sdk.UnsignedEvent
+import su.reya.coop.Room
+import su.reya.coop.nostr.Nostr
+import su.reya.coop.repository.MediaRepository
+import su.reya.coop.roomId
+
+data class ChatState(
+    val rooms: Set<Room> = emptySet(),
+    val isSyncing: Boolean = false,
+    val isPartialProcessedGiftWrap: Boolean = false,
+)
+
+class ChatViewModel(private val nostr: Nostr) : BaseViewModel() {
+    private val mediaRepository = MediaRepository()
+
+    private val _state = MutableStateFlow(ChatState())
+    val state = combine(
+        _state,
+        nostr.messages.messageSyncState
+    ) { local, state -> local.copy(isSyncing = state.isSyncing) }.stateIn(
+        viewModelScope,
+        SharingStarted.WhileSubscribed(5000),
+        ChatState()
+    )
+
+    private val _newEvents = MutableSharedFlow<UnsignedEvent>(extraBufferCapacity = 100)
+    val newEvents = _newEvents.asSharedFlow()
+
+    private val _sentReports = MutableSharedFlow<Map<EventId, List<RelayUrl>>>()
+    val sentReport = _sentReports.asSharedFlow()
+
+    val chatRooms = state.map { it.rooms }
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), emptySet())
+
+    val isSyncing = state.map { it.isSyncing }
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), false)
+
+    val isPartialProcessedGiftWrap = state.map { it.isPartialProcessedGiftWrap }
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), false)
+
+    init {
+        viewModelScope.launch {
+            nostr.waitUntilInitialized()
+
+            // Observe message sync progress
+            launch {
+                nostr.messages.messageSyncState.collect { syncState ->
+                    // When at least some messages are processed, allow UI to show the list
+                    if (syncState.processedCount > 0) {
+                        _state.update { it.copy(isPartialProcessedGiftWrap = true) }
+                    }
+
+                    // Refresh UI every 10 messages OR when sync is fully done
+                    if (syncState.processedCount % 10 == 0 || !syncState.isSyncing) {
+                        refreshChatRooms()
+                    }
+                }
+            }
+
+            // Observe new messages
+            launch {
+                nostr.newEvents.collect { event ->
+                    val roomId = event.roomId()
+                    val existingRoom = _state.value.rooms.firstOrNull { it.id == roomId }
+
+                    if (existingRoom == null) {
+                        val currentUser = nostr.signer.getPublicKeyAsync() ?: return@collect
+                        val newRoom = Room.new(event, currentUser)
+                        _state.update {
+                            it.copy(
+                                rooms = (it.rooms + newRoom).sortedDescending().toSet()
+                            )
+                        }
+                    } else {
+                        updateRoomList(roomId, event)
+                    }
+
+                    _newEvents.emit(event)
+                }
+            }
+
+            // Initial load of rooms
+            refreshChatRooms()
+        }
+    }
+
+    fun createChatRoom(to: List<PublicKey>): Long {
+        try {
+            if (to.isEmpty()) {
+                throw IllegalArgumentException("At least one recipient is required")
+            }
+
+            // Get current user
+            val currentUser = nostr.signer.publicKeyFlow.value
+                ?: throw IllegalStateException("User not signed in")
+
+            // Construct the rumor event
+            val rumor = EventBuilder(Kind.fromStd(KindStandard.PRIVATE_DIRECT_MESSAGE), "")
+                .tags(to.map { Tag.publicKey(it) })
+                .finalizeUnsigned(currentUser)
+
+            // Check if the room already exists
+            val id = rumor.roomId()
+            val existingRoom = _state.value.rooms.firstOrNull { it.id == id }
+
+            // If the room already exists, return its ID
+            if (existingRoom != null) {
+                return existingRoom.id
+            }
+
+            // Create a room from the rumor event
+            val room = Room.new(rumor, currentUser)
+
+            // Update the chat rooms state
+            _state.update { it.copy(rooms = (it.rooms + room).sortedDescending().toSet()) }
+
+            return room.id
+        } catch (e: Exception) {
+            throw IllegalArgumentException("Failed to create room: ${e.message}")
+        }
+    }
+
+    fun getChatRoom(id: Long): Room? {
+        return _state.value.rooms.firstOrNull { it.id == id }
+    }
+
+    suspend fun refreshChatRooms() {
+        try {
+            val rooms = nostr.messages.getChatRooms() ?: emptySet()
+            _state.update { currentState ->
+                val merged = currentState.rooms.associateBy { it.id }.toMutableMap()
+                // Add or update rooms from the database
+                rooms.forEach { room ->
+                    merged[room.id] = room
+                }
+                // Return as a sorted set to maintain UI consistency
+                currentState.copy(rooms = merged.values.sortedDescending().toSet())
+            }
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+        }
+    }
+
+    suspend fun getChatRoomMessages(roomId: Long): List<UnsignedEvent> {
+        try {
+            return nostr.messages.getChatRoomMessages(roomId)
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+        }
+
+        return emptyList()
+    }
+
+    fun chatRoomConnect(roomId: Long) {
+        viewModelScope.launch {
+            try {
+                val room = getChatRoom(roomId) ?: throw IllegalArgumentException("Room not found")
+                val members = room.members
+
+                nostr.messages.chatRoomConnect(members.toList())
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+
+    fun sendMessage(roomId: Long, message: String, replies: List<EventId> = emptyList()) {
+        if (message.isEmpty()) {
+            showError("Message cannot be empty")
+        }
+        viewModelScope.launch {
+            try {
+                val room = getChatRoom(roomId) ?: throw IllegalArgumentException("Room not found")
+                nostr.messages.sendMessage(
+                    to = room.members,
+                    content = message,
+                    subject = room.subject,
+                    replies = replies,
+                    onRumorCreated = { event ->
+                        updateRoomList(roomId, event)
+                        viewModelScope.launch { _newEvents.emit(event) }
+                    },
+                )
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+
+    suspend fun sendFileMessage(
+        roomId: Long,
+        file: ByteArray?,
+        contentType: String? = "image/jpeg",
+        replies: List<EventId> = emptyList()
+    ) {
+        if (file == null) return
+
+        try {
+            val uri = mediaRepository.blossomUpload(nostr.signer.get(), file, contentType)
+            if (uri != null) sendMessage(roomId, uri, replies)
+        } catch (e: Exception) {
+            throw IllegalArgumentException("Error: ${e.message}")
+        }
+    }
+
+    fun isMessageSent(id: EventId): Boolean {
+        val giftWrapId = nostr.messages.rumorMap[id]
+
+        if (giftWrapId != null) {
+            val isSent = nostr.messages.sentEvents[giftWrapId]?.isNotEmpty() ?: false
+            return isSent
+        } else {
+            return false
+        }
+    }
+
+    private fun updateRoomList(roomId: Long, newMessage: UnsignedEvent) {
+        _state.update { currentState ->
+            val updatedRooms = currentState.rooms.map { room ->
+                if (room.id == roomId) {
+                    room.copy(
+                        lastMessage = newMessage.content(),
+                        createdAt = newMessage.createdAt()
+                    )
+                } else {
+                    room
+                }
+            }.sortedDescending().toSet()
+            currentState.copy(rooms = updatedRooms)
+        }
+    }
+
+    fun resetInternalState() {
+        _state.update {
+            it.copy(
+                rooms = emptySet(),
+                isPartialProcessedGiftWrap = false,
+            )
+        }
+    }
+}

shared/src/commonMain/kotlin/su/reya/coop/viewmodel/NostrViewModel.kt

@@ -0,0 +1,446 @@
+package su.reya.coop.viewmodel
+
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.awaitCancellation
+import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.filterNotNull
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.flowOf
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import kotlinx.coroutines.withTimeoutOrNull
+import rust.nostr.sdk.PublicKey
+import rust.nostr.sdk.RelayMetadata
+import rust.nostr.sdk.RelayUrl
+import rust.nostr.sdk.Timestamp
+import su.reya.coop.Profile
+import su.reya.coop.nostr.Nostr
+import su.reya.coop.repository.MediaRepository
+import kotlin.time.Clock
+import kotlin.time.Duration.Companion.milliseconds
+import kotlin.time.Duration.Companion.seconds
+
+data class NostrAppState(
+    val isBusy: Boolean = false,
+    val isRelayListEmpty: Boolean = false,
+)
+
+class NostrViewModel(private val nostr: Nostr) : BaseViewModel() {
+    private val mediaRepository = MediaRepository()
+
+    private val alwaysRunTasks = flow {
+        coroutineScope {
+            val observerJob = launch { runObserver() }
+            val batchingJob = launch { runMetadataBatching() }
+            try {
+                emit(Unit)
+                awaitCancellation()
+            } finally {
+                observerJob.cancel()
+                batchingJob.cancel()
+            }
+        }
+    }
+
+    private val _appState = MutableStateFlow(NostrAppState())
+    val appState: StateFlow<NostrAppState> =
+        combine(_appState, alwaysRunTasks) { state, _ -> state }.stateIn(
+            scope = viewModelScope,
+            started = SharingStarted.WhileSubscribed(5000),
+            initialValue = NostrAppState()
+        )
+
+    private val _contactList = MutableStateFlow<Set<PublicKey>>(emptySet())
+    val contactList = _contactList.asStateFlow()
+
+    private val profilesMutex = Mutex()
+    private val profiles = mutableMapOf<PublicKey, MutableStateFlow<Profile?>>()
+    private val metadataRequestChannel = Channel<PublicKey>(Channel.UNLIMITED)
+    private val seenPublicKeys = mutableSetOf<PublicKey>()
+
+    val isBusy = appState.map { it.isBusy }
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), false)
+    val isRelayListEmpty = appState.map { it.isRelayListEmpty }
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), false)
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    val currentUserProfile = nostr.signer.publicKeyFlow
+        .flatMapLatest { pubkey ->
+            if (pubkey != null) getMetadata(pubkey) else flowOf(null)
+        }
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), null)
+
+    init {
+        // Automatically reconnect bootstrap relays
+        reconnect()
+
+        // Observe the signer state and verify the relay list
+        observeSignerAndCheckRelays()
+
+        // Get all local stored metadata
+        getCacheMetadata()
+    }
+
+    private fun reconnect() {
+        viewModelScope.launch {
+            nostr.waitUntilInitialized()
+            nostr.reconnect()
+        }
+    }
+
+    private suspend fun runObserver() = coroutineScope {
+        // Observe contact list updates
+        launch {
+            nostr.profiles.contactListUpdates.collect { contacts ->
+                _contactList.value = contacts.toSet()
+            }
+        }
+
+        // Observe metadata updates
+        launch {
+            nostr.profiles.metadataUpdates.collect { (pubkey, metadata) ->
+                updateMetadata(pubkey, Profile(pubkey, metadata))
+            }
+        }
+    }
+
+    private suspend fun runMetadataBatching() = coroutineScope {
+        // Wait until the client is ready
+        nostr.waitUntilInitialized()
+
+        val batch = mutableSetOf<PublicKey>()
+        val timeout = 500L // 500ms timeout for batching
+
+        while (true) {
+            // Get the first pubkey
+            val firstKey = metadataRequestChannel.receive()
+            batch.add(firstKey)
+
+            // Get current time
+            val lastFlushTime = Clock.System.now().toEpochMilliseconds()
+
+            while (batch.isNotEmpty()) {
+                // Get the next pubkey
+                val nextKey = withTimeoutOrNull(timeout.milliseconds) {
+                    metadataRequestChannel.receive()
+                }
+
+                // Only add the pubkey if it's not null
+                if (nextKey != null) batch.add(nextKey)
+
+                // Get current time
+                val now = Clock.System.now().toEpochMilliseconds()
+
+                // Check if the batch is full or timeout has passed
+                if (batch.size >= 10 || (now - lastFlushTime) >= timeout || nextKey == null) {
+                    val keysToRequest = batch.toList()
+                    batch.clear()
+
+                    nostr.profiles.fetchMetadataBatch(keysToRequest)
+                }
+            }
+        }
+    }
+
+    private fun getCacheMetadata() {
+        viewModelScope.launch {
+            // Wait until the client is ready
+            nostr.waitUntilInitialized()
+
+            nostr.profiles.getAllCacheMetadata().forEach { (pubkey, metadata) ->
+                // Update the metadata state
+                updateMetadata(pubkey, Profile(pubkey, metadata))
+                // Update seenPublicKeys to avoid duplicate requests
+                seenPublicKeys.add(pubkey)
+            }
+        }
+    }
+
+    private fun observeSignerAndCheckRelays() {
+        viewModelScope.launch {
+            // Wait until the client is ready
+            nostr.waitUntilInitialized()
+
+            // Wait until a signer is explicitly set (which updates publicKeyFlow)
+            val currentUser = nostr.signer.publicKeyFlow.filterNotNull().first()
+
+            // Get all metadata for the current user
+            nostr.profiles.getUserMetadata()
+
+            // Small delay to ensure all relays are connected
+            delay(2.seconds)
+
+            // Check if the relay list is empty
+            val relays = nostr.relays.getMsgRelays(currentUser)
+            if (relays.isEmpty()) _appState.update { it.copy(isRelayListEmpty = true) }
+        }
+    }
+
+    private fun requestMetadata(pubkey: PublicKey) {
+        if (seenPublicKeys.add(pubkey)) {
+            viewModelScope.launch {
+                metadataRequestChannel.send(pubkey)
+            }
+        }
+    }
+
+    private fun updateMetadata(pubkey: PublicKey, profile: Profile) {
+        viewModelScope.launch {
+            profilesMutex.withLock {
+                profiles.getOrPut(pubkey) { MutableStateFlow(null) }.value = profile
+            }
+        }
+    }
+
+    fun getMetadata(pubkey: PublicKey): StateFlow<Profile?> {
+        val flow = profiles.getOrPut(pubkey) { MutableStateFlow(null) }
+        if (flow.value == null) requestMetadata(pubkey)
+
+        return flow.asStateFlow()
+    }
+
+    fun resetInternalState() {
+        _contactList.value = emptySet()
+        _appState.update {
+            it.copy(
+                isRelayListEmpty = false,
+            )
+        }
+    }
+
+    fun dismissRelayWarning() {
+        _appState.update { it.copy(isRelayListEmpty = false) }
+    }
+
+    suspend fun updateProfile(
+        name: String? = null,
+        bio: String? = null,
+        picture: ByteArray? = null,
+        contentType: String? = null
+    ) {
+        _appState.update { it.copy(isBusy = true) }
+        try {
+            val avatarUrl =
+                picture?.let {
+                    mediaRepository.blossomUpload(
+                        nostr.signer.get(),
+                        it,
+                        contentType ?: "image/jpeg"
+                    )
+                }
+            val newMetadata = nostr.profiles.updateProfile(name, bio, avatarUrl)
+            val currentUser = nostr.signer.getPublicKeyAsync() ?: throw Exception("User not found")
+
+            // Update the metadata state after successfully published
+            updateMetadata(currentUser, Profile(currentUser, newMetadata))
+
+            // Update local state
+            _appState.update { it.copy(isBusy = false) }
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+        }
+    }
+
+    suspend fun refetchMsgRelays() {
+        val currentUser = nostr.signer.getPublicKeyAsync() ?: return
+        val relays = nostr.relays.fetchMsgRelays(currentUser)
+
+        if (relays.isNotEmpty()) dismissRelayWarning()
+    }
+
+    suspend fun useDefaultMsgRelayList() {
+        try {
+            val defaultRelays = nostr.relays.getDefaultMsgRelayList()
+            nostr.relays.setMsgRelays(defaultRelays)
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+        }
+    }
+
+    suspend fun currentUserRelayList(): Map<RelayUrl, RelayMetadata?> {
+        try {
+            val currentUser = nostr.signer.getPublicKeyAsync() ?: throw Exception("User not found")
+            return nostr.relays.getRelayList(currentUser)
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+            return emptyMap()
+        }
+    }
+
+    suspend fun addInboxRelay(relay: String) {
+        try {
+            val relayUrl = RelayUrl.parse(relay)
+            val relays = currentUserRelayList().toMutableMap()
+            relays[relayUrl] = RelayMetadata.WRITE
+
+            nostr.relays.setRelaylist(relays)
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+        }
+    }
+
+    suspend fun addOutboxRelay(relay: String) {
+        try {
+            val relayUrl = RelayUrl.parse(relay)
+            val relays = currentUserRelayList().toMutableMap()
+            relays[relayUrl] = RelayMetadata.READ
+
+            nostr.relays.setRelaylist(relays)
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+        }
+    }
+
+    suspend fun removeRelay(relay: String) {
+        try {
+            val relayUrl = RelayUrl.parse(relay)
+            val relays = currentUserRelayList().toMutableMap()
+            relays.remove(relayUrl)
+
+            nostr.relays.setRelaylist(relays)
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+        }
+    }
+
+    suspend fun currentUserMsgRelayList(): List<RelayUrl> {
+        try {
+            val currentUser = nostr.signer.getPublicKeyAsync() ?: throw Exception("User not found")
+            return nostr.relays.getMsgRelays(currentUser)
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+            return emptyList()
+        }
+    }
+
+    suspend fun addMsgRelay(relay: String) {
+        try {
+            val relayUrl = RelayUrl.parse(relay)
+            val relays = currentUserMsgRelayList().toMutableSet()
+            relays.add(relayUrl)
+
+            nostr.relays.setMsgRelays(relays.toList())
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+        }
+    }
+
+    suspend fun removeMsgRelay(relay: String) {
+        try {
+            val relayUrl = RelayUrl.parse(relay)
+            val relays = currentUserMsgRelayList().toMutableSet()
+            relays.remove(relayUrl)
+
+            nostr.relays.setMsgRelays(relays.toList())
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+        }
+    }
+
+    private suspend fun newContact(publicKey: PublicKey) {
+        if (publicKey in contactList.value) return
+
+        try {
+            val updated = contactList.value + publicKey
+            // Publish new event
+            nostr.profiles.setContactList(updated.toList())
+            // Optimistic local update
+            _contactList.update { it + publicKey }
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+        }
+    }
+
+    suspend fun addContact(address: String): Boolean {
+        val pubkey = try {
+            if (address.contains("@")) {
+                nostr.profiles.searchByAddress(address)
+            } else {
+                PublicKey.parse(address)
+            }
+        } catch (e: Exception) {
+            showError("Invalid contact address: ${e.message}")
+            return false
+        }
+
+        return run {
+            newContact(pubkey)
+            true
+        }
+    }
+
+    fun removeContact(publicKey: PublicKey) {
+        viewModelScope.launch {
+            if (publicKey !in contactList.value) return@launch
+
+            try {
+                val updated = contactList.value - publicKey
+                // Publish new event
+                nostr.profiles.setContactList(updated.toList())
+                // Optimistic local update
+                _contactList.update { it - publicKey }
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+
+    suspend fun searchByAddress(query: String): PublicKey? {
+        try {
+            return nostr.profiles.searchByAddress(query)
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+        }
+        return null
+    }
+
+    suspend fun searchByNostr(query: String): List<PublicKey> {
+        try {
+            return nostr.profiles.searchByNostr(query)
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+        }
+        return emptyList()
+    }
+
+    suspend fun verifyActivity(pubkey: PublicKey): Timestamp? {
+        return try {
+            nostr.profiles.verifyActivity(pubkey)
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+            null
+        }
+    }
+
+    suspend fun verifyContact(pubkey: PublicKey): Boolean {
+        return try {
+            nostr.profiles.verifyContact(pubkey)
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+            false
+        }
+    }
+
+    suspend fun mutualContacts(pubkey: PublicKey): Set<PublicKey> {
+        return try {
+            nostr.profiles.mutualContacts(pubkey)
+        } catch (e: Exception) {
+            showError("Error: ${e.message}")
+            setOf()
+        }
+    }
+}

zapstore.yaml

@@ -0,0 +1,70 @@
+# ═══════════════════════════════════════════════════════════════════
+# SOURCE CONFIGURATION
+# ═══════════════════════════════════════════════════════════════════
+
+repository: https://git.reya.su/reya/coop-mobile
+release_source:
+  url: https://git.reya.su/reya/coop-mobile
+  type: gitea
+
+# ═══════════════════════════════════════════════════════════════════
+# APP METADATA
+# ═══════════════════════════════════════════════════════════════════
+
+name: Coop
+summary: Chat and Co-op Privately
+license: GPLv3
+website: https://reya.su/coop
+
+description: |
+  Coop is a simple, cozy chat app built for Nostr. It’s designed for folks who want to stay connected without sacrificing their privacy or control over their data.
+
+  **Features**:
+  - Private & Secure: Enjoy end-to-end encrypted messaging that keeps your private chats truly private.
+  - Friendly Socializing: Connect with friends across the open Nostr network in a clean, easy-to-use interface.
+  - No Identity Required: Get started without a phone number. Stay anonymous, use a pseudonym, or even your real name.
+
+tags:
+  - messaging
+  - privacy
+  - material3
+  - nostr
+
+# ═══════════════════════════════════════════════════════════════════
+# MEDIA
+# ═══════════════════════════════════════════════════════════════════
+
+icon: ./assets/icon.png
+
+images:
+  - ./assets/screenshot1.png
+  - ./assets/screenshot2.png
+  - ./assets/screenshot3.png
+  - ./assets/screenshot4.png
+  - ./assets/screenshot5.png
+
+# ═══════════════════════════════════════════════════════════════════
+# RELEASE CONFIGURATION
+# ═══════════════════════════════════════════════════════════════════
+
+release_notes: ./CHANGELOG.md
+
+# ═══════════════════════════════════════════════════════════════════
+# NOSTR-SPECIFIC
+# ═══════════════════════════════════════════════════════════════════
+
+supported_nips:
+  - "01"
+  - "17"
+  - "46"
+  - "55"
+  - "59"
+
+min_allowed_version_code: 100
+
+# ═══════════════════════════════════════════════════════════════════
+# METADATA SOURCES
+# ═══════════════════════════════════════════════════════════════════
+
+metadata_sources:
+  - playstore