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

@@ -48,9 +48,9 @@ import su.reya.coop.screens.RequestListScreen
 import su.reya.coop.screens.ScanScreen
 import su.reya.coop.screens.UpdateProfileScreen
 import su.reya.coop.screens.chat.ChatScreen
+import su.reya.coop.viewmodel.AccountViewModel
 import su.reya.coop.viewmodel.ChatViewModel
 import su.reya.coop.viewmodel.NostrViewModel
-import su.reya.coop.viewmodel.account.AccountViewModel
 
 val LocalNostrViewModel = staticCompositionLocalOf<NostrViewModel> {
     error("No NostrViewModel provided")

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

@@ -14,9 +14,9 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
 import su.reya.coop.nostr.NostrManager
 import su.reya.coop.repository.MediaRepository
+import su.reya.coop.viewmodel.AccountViewModel
 import su.reya.coop.viewmodel.ChatViewModel
 import su.reya.coop.viewmodel.NostrViewModel
-import su.reya.coop.viewmodel.account.AccountViewModel
 import kotlin.system.exitProcess
 
 class MainActivity : ComponentActivity() {

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

@@ -97,11 +97,12 @@ import su.reya.coop.LocalScanResult
 import su.reya.coop.LocalSnackbarHostState
 import su.reya.coop.Room
 import su.reya.coop.RoomKind
+import su.reya.coop.RoomUiState
 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.uiStateFlow
 
 @OptIn(ExperimentalMaterial3ExpressiveApi::class, ExperimentalMaterial3Api::class)
 @Composable
@@ -111,7 +112,6 @@ fun HomeScreen() {
     val qrScanResult = LocalScanResult.current
     val snackbarHostState = LocalSnackbarHostState.current
     val clipboardManager = LocalClipboard.current
-    val nostrViewModel = LocalNostrViewModel.current
     val chatViewModel = LocalChatViewModel.current
     val accountViewModel = LocalAccountViewModel.current
 
@@ -615,8 +615,10 @@ fun NewRequests(requests: List<Room>) {
     val firstRoom = requests.getOrNull(0)
     val secondRoom = requests.getOrNull(1)
 
-    val firstRoomState by (firstRoom as Room).rememberUiState(nostrViewModel)
-    val secondRoomState by (secondRoom ?: firstRoom).rememberUiState(nostrViewModel)
+    val firstRoomState by (firstRoom as Room).uiStateFlow(nostrViewModel)
+        .collectAsStateWithLifecycle(RoomUiState())
+    val secondRoomState by (secondRoom ?: firstRoom).uiStateFlow(nostrViewModel)
+        .collectAsStateWithLifecycle(RoomUiState())
 
     val supportingText = when {
         total == 1 -> {
@@ -688,7 +690,8 @@ fun NewRequests(requests: List<Room>) {
 @Composable
 fun ChatRoom(room: Room, onClick: () -> Unit) {
     val nostrViewModel = LocalNostrViewModel.current
-    val roomState by room.rememberUiState(nostrViewModel)
+    val roomState by room.uiStateFlow(nostrViewModel)
+        .collectAsStateWithLifecycle(RoomUiState())
 
     ListItem(
         modifier = Modifier.clickable(onClick = onClick),

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

@@ -71,9 +71,10 @@ import su.reya.coop.LocalNavigator
 import su.reya.coop.LocalNostrViewModel
 import su.reya.coop.LocalSnackbarHostState
 import su.reya.coop.Room
+import su.reya.coop.RoomUiState
 import su.reya.coop.Screen
 import su.reya.coop.formatAsGroupHeader
-import su.reya.coop.rememberUiState
+import su.reya.coop.uiStateFlow
 import su.reya.coop.roomId
 import su.reya.coop.shared.Avatar
 
@@ -115,7 +116,8 @@ fun ChatScreen(
         return
     }
 
-    val roomState by (room as Room).rememberUiState(nostrViewModel, currentUser?.publicKey)
+    val roomState by (room as Room).uiStateFlow(nostrViewModel, currentUser?.publicKey)
+        .collectAsStateWithLifecycle(RoomUiState())
     var text by remember { mutableStateOf("") }
     var loading by remember { mutableStateOf(true) }
     var newOtherMessages by remember { mutableIntStateOf(0) }

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

@@ -1,9 +1,5 @@
 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
@@ -66,22 +62,6 @@ data class Room(
         }
     }
 
-    fun setKind(kind: RoomKind): Room {
-        return this.copy(kind = kind)
-    }
-
-    fun setCreatedAt(createdAt: Timestamp): Room {
-        return this.copy(createdAt = createdAt)
-    }
-
-    fun setSubject(subject: String?): Room {
-        return this.copy(subject = subject)
-    }
-
-    fun setLastMessage(message: String?): Room {
-        return this.copy(lastMessage = message)
-    }
-
     fun isGroup(): Boolean = members.size > 1
 }
 
@@ -127,19 +107,6 @@ fun Room.uiStateFlow(
     }
 }
 
-@Composable
-fun Room.rememberUiState(
-    viewModel: NostrViewModel,
-    currentUser: PublicKey? = null
-): State<RoomUiState> {
-    return remember(this, currentUser) {
-        uiStateFlow(
-            viewModel,
-            currentUser
-        )
-    }.collectAsStateWithLifecycle(RoomUiState())
-}
-
 fun UnsignedEvent.roomId(): Long {
     // Collect the author's public key and all public keys from tags
     val pubkeys: MutableList<PublicKey> = mutableListOf()

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

@@ -37,18 +37,6 @@ import kotlin.time.Duration.Companion.seconds
 
 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(

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

@@ -32,6 +32,7 @@ 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 httpClient by lazy { HttpClient() }
 
     private val _metadataUpdates =
         MutableSharedFlow<Pair<PublicKey, Metadata>>(
@@ -88,7 +89,7 @@ class ProfileManager(private val nostr: Nostr) {
         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) }
+            val relays = RelayManager.BOOTSTRAP_RELAYS.map { RelayUrl.parse(it) }
 
             client?.sync(filter, relays)
         } catch (e: Exception) {
@@ -226,7 +227,7 @@ class ProfileManager(private val nostr: Nostr) {
 
             // Construct request target
             val target = mutableMapOf<RelayUrl, List<Filter>>()
-            NostrManager.BOOTSTRAP_RELAYS.forEach { relay ->
+            RelayManager.BOOTSTRAP_RELAYS.forEach { relay ->
                 target[RelayUrl.parse(relay)] = listOf(filter)
             }
 
@@ -265,7 +266,7 @@ class ProfileManager(private val nostr: Nostr) {
     suspend fun searchByAddress(query: String): PublicKey {
         try {
             val address = Nip05Address.parse(query)
-            val profile = profileFromAddress(HttpClient(), address)
+            val profile = profileFromAddress(httpClient, address)
 
             return profile.publicKey()
         } catch (e: Exception) {
@@ -312,7 +313,7 @@ class ProfileManager(private val nostr: Nostr) {
         try {
             val filter = Filter().author(pubkey).limit(3u)
             val target = mutableMapOf<RelayUrl, List<Filter>>()
-            NostrManager.BOOTSTRAP_RELAYS.forEach { relay ->
+            RelayManager.BOOTSTRAP_RELAYS.forEach { relay ->
                 target[RelayUrl.parse(relay)] = listOf(filter)
             }
 

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

@@ -20,14 +20,28 @@ import rust.nostr.sdk.nip17ExtractRelayList
 import kotlin.time.Duration
 
 class RelayManager(private val nostr: Nostr) {
+    companion object {
+        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
+    }
+
     private val client: Client? get() = nostr.client
     private val signer: UniversalSigner get() = nostr.signer
 
     suspend fun connectBootstrapRelays() {
-        NostrManager.BOOTSTRAP_RELAYS.forEach { url ->
+        BOOTSTRAP_RELAYS.forEach { url ->
             client?.addRelay(RelayUrl.parse(url))
         }
-        NostrManager.INDEXER_RELAY.forEach { url ->
+        INDEXER_RELAY.forEach { url ->
             client?.addRelay(
                 url = RelayUrl.parse(url),
                 capabilities = RelayCapabilities.gossip()
@@ -38,7 +52,7 @@ class RelayManager(private val nostr: Nostr) {
     }
 
     suspend fun reconnect() {
-        NostrManager.ALL_RELAYS.forEach { url ->
+        ALL_RELAYS.forEach { url ->
             try {
                 client?.relay(RelayUrl.parse(url)).let { relay ->
                     if (relay != null) {
@@ -54,7 +68,7 @@ class RelayManager(private val nostr: Nostr) {
     }
 
     suspend fun disconnect() {
-        NostrManager.ALL_RELAYS.forEach { url ->
+        ALL_RELAYS.forEach { url ->
             try {
                 client?.disconnectRelay(RelayUrl.parse(url))
             } catch (e: Exception) {

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

@@ -0,0 +1,604 @@
+package su.reya.coop.viewmodel
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+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.filter
+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.merge
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import kotlinx.coroutines.withTimeoutOrNull
+import rust.nostr.sdk.AsyncNostrSigner
+import rust.nostr.sdk.EncryptedSecretKey
+import rust.nostr.sdk.Keys
+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.Timestamp
+import su.reya.coop.AppStorage
+import su.reya.coop.Profile
+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 kotlin.time.Duration.Companion.milliseconds
+import kotlin.time.Duration.Companion.seconds
+
+data class AccountState(
+    val signerRequired: Boolean? = null,
+    val isNotificationBannerDismissed: Boolean = false,
+    val isImporting: Boolean = false,
+    val importError: String? = null,
+)
+
+class AccountViewModel(
+    private val nostr: Nostr,
+    private val storage: AppStorage,
+    private val mediaRepository: MediaRepository,
+    private val externalSignerHandler: ExternalSignerHandler? = null,
+    private val defaultDispatcher: CoroutineDispatcher = Dispatchers.Default,
+) : ViewModel(), ErrorHost by createErrorHost() {
+    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(AccountState())
+    val state: StateFlow<AccountState> = _state.asStateFlow()
+
+    private val _isUpdatingProfile = MutableStateFlow(false)
+    val isUpdatingProfile: StateFlow<Boolean> = _isUpdatingProfile.asStateFlow()
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    val currentUserProfile: StateFlow<Profile?> = nostr.signer.publicKeyFlow
+        .flatMapLatest { pubkey ->
+            if (pubkey != null) currentUserProfileFlow(pubkey) else flowOf(null)
+        }
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), null)
+
+    private val _contactList = MutableStateFlow<Set<PublicKey>>(emptySet())
+    val contactList: StateFlow<Set<PublicKey>> = _contactList.asStateFlow()
+
+    private val _isRelayListEmpty = MutableStateFlow(false)
+    val isRelayListEmpty: StateFlow<Boolean> = _isRelayListEmpty.asStateFlow()
+
+    private val _currentUserRelayList = MutableStateFlow<Map<RelayUrl, RelayMetadata?>>(emptyMap())
+    val currentUserRelayList: StateFlow<Map<RelayUrl, RelayMetadata?>> =
+        _currentUserRelayList.asStateFlow()
+
+    private val _currentUserMsgRelayList = MutableStateFlow<List<RelayUrl>>(emptyList())
+    val currentUserMsgRelayList: StateFlow<List<RelayUrl>> = _currentUserMsgRelayList.asStateFlow()
+
+    init {
+        checkNotificationBannerDismissedStatus()
+        login()
+        observeContactList()
+    }
+
+    private fun checkNotificationBannerDismissedStatus() {
+        viewModelScope.launch {
+            val dismissed = storage.get(KEY_BANNER_DISMISSED) == "true"
+            _state.update { it.copy(isNotificationBannerDismissed = dismissed) }
+        }
+    }
+
+    private fun login() {
+        viewModelScope.launch {
+            try {
+                val secret = withTimeoutOrNull(5.seconds) {
+                    storage.getSecret(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) }
+                    onSignerReady()
+                }.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 {
+                nostr.signer.switch(Keys.generate())
+                nostr.prune()
+            } catch (e: Exception) {
+                showError("Logout encountered an error: ${e.message}")
+            } finally {
+                storage.clear(KEY_USER_SIGNER)
+                storage.clear(KEY_BANNER_DISMISSED)
+                onLogout()
+                _state.update { it.copy(signerRequired = true) }
+            }
+        }
+    }
+
+    fun dismissNotificationBanner() {
+        viewModelScope.launch {
+            storage.set(KEY_BANNER_DISMISSED, "true")
+            _state.update { it.copy(isNotificationBannerDismissed = true) }
+        }
+    }
+
+    private suspend fun getOrInitAppKeys(): Keys = withContext(defaultDispatcher) {
+        val secret = storage.getSecret(KEY_APP_KEYS)
+        if (secret != null) return@withContext Keys.parse(secret)
+        val keys = Keys.generate()
+        storage.setSecret(KEY_APP_KEYS, keys.secretKey().toBech32())
+        keys
+    }
+
+    private suspend fun createSigner(
+        secret: String,
+        password: String? = null
+    ): Pair<AsyncNostrSigner, String?> = withContext(defaultDispatcher) {
+        when {
+            secret.startsWith("nsec1") -> Keys.parse(secret) to null
+
+            secret.startsWith("ncryptsec1") -> {
+                if (password == null) throw IllegalArgumentException("Password is required")
+                val enc = EncryptedSecretKey.fromBech32(secret)
+                val decrypted = enc.decrypt(password)
+                val keys = Keys(decrypted)
+                keys to keys.secretKey().toBech32()
+            }
+
+            secret.startsWith("bunker://") -> {
+                val appKeys = getOrInitAppKeys()
+                val bunker = NostrConnectUri.parse(secret)
+                val timeout = 50.seconds
+                NostrConnect(uri = bunker, appKeys, timeout, null) to null
+            }
+
+            secret.startsWith("nip55://") -> {
+                val handler = externalSignerHandler ?: throw IllegalStateException("Not available")
+                val parts = secret.removePrefix("nip55://").split("/", limit = 2)
+                val packageName = parts[0]
+                val pubkey = PublicKey.parse(parts[1])
+
+                handler.setPackageName(packageName)
+                ExternalSignerProxy(handler, pubkey) to null
+            }
+
+            else -> throw IllegalArgumentException("Invalid secret format")
+        }
+    }
+
+    fun isExternalSignerAvailable(): Boolean {
+        return externalSignerHandler?.isAvailable() == true
+    }
+
+    fun importIdentity(secret: String, password: String? = null) {
+        viewModelScope.launch {
+            _state.update { it.copy(isImporting = true, importError = null) }
+            try {
+                val (signer, decryptedSecret) = createSigner(secret, password)
+
+                nostr.setSigner(signer)
+                onSignerReady()
+
+                storage.setSecret(KEY_USER_SIGNER, decryptedSecret ?: secret)
+                _state.update { it.copy(signerRequired = false, isImporting = false) }
+            } catch (e: Exception) {
+                showError("Import failed: ${e.message}")
+                _state.update { it.copy(isImporting = false, importError = e.message) }
+            }
+        }
+    }
+
+    fun connectExternalSigner() {
+        viewModelScope.launch {
+            _state.update { it.copy(isImporting = true, importError = null) }
+            try {
+                val handler =
+                    externalSignerHandler ?: throw IllegalStateException("Signer not available")
+
+                val permissions = SignerPermissions.toJson(
+                    listOf(
+                        SignerPermissions.signEvent(0),
+                        SignerPermissions.signEvent(3),
+                        SignerPermissions.signEvent(10000),
+                        SignerPermissions.signEvent(10050),
+                        SignerPermissions.signEvent(10063),
+                        SignerPermissions.signEvent(22242),
+                        SignerPermissions.signEvent(30030),
+                        SignerPermissions.signEvent(30315),
+                        SignerPermissions.nip44Encrypt(),
+                        SignerPermissions.nip44Decrypt(),
+                    )
+                )
+
+                val result = handler.getPublicKey(permissions) ?: throw Exception("Rejected")
+                val signer = ExternalSignerProxy(handler, result.pubkey)
+                val uri = "nip55://${result.packageName}/${result.pubkey.toHex()}"
+
+                nostr.setSigner(signer)
+                onSignerReady()
+
+                storage.setSecret(KEY_USER_SIGNER, uri)
+                _state.update { it.copy(signerRequired = false, isImporting = false) }
+            } catch (e: Exception) {
+                showError("External signer connection failed: ${e.message}")
+                _state.update { it.copy(isImporting = false, importError = e.message) }
+            }
+        }
+    }
+
+    fun createIdentity(
+        name: String,
+        bio: String?,
+        picture: ByteArray?,
+        contentType: String? = null
+    ) {
+        viewModelScope.launch {
+            _state.update { it.copy(isImporting = true, importError = null) }
+            try {
+                val keys = Keys.generate()
+                val secret = keys.secretKey().toBech32()
+                val avatarUrl = picture?.let {
+                    mediaRepository.blossomUpload(keys, it, contentType ?: "image/jpeg")
+                }
+
+                nostr.profiles.createIdentity(
+                    keys = keys,
+                    name = name,
+                    bio = bio,
+                    picture = avatarUrl
+                )
+                onSignerReady()
+
+                storage.setSecret(KEY_USER_SIGNER, secret)
+                _state.update { it.copy(signerRequired = false, isImporting = false) }
+            } catch (e: Exception) {
+                showError("Identity creation failed: ${e.message}")
+                _state.update { it.copy(isImporting = false, importError = e.message) }
+            }
+        }
+    }
+
+    private fun onSignerReady() {
+        getUserMetadata()
+        checkRelayList()
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    private fun currentUserProfileFlow(pubkey: PublicKey) = merge(
+        flow {
+            nostr.waitUntilInitialized()
+            val cached = nostr.profiles.getAllCacheMetadata()[pubkey]
+            if (cached != null) emit(Profile(pubkey, cached))
+            nostr.profiles.fetchMetadataBatch(listOf(pubkey))
+        },
+        nostr.profiles.metadataUpdates
+            .filter { (p, _) -> p == pubkey }
+            .map { (p, m) -> Profile(p, m) }
+    )
+
+    fun getUserMetadata() {
+        viewModelScope.launch {
+            nostr.profiles.getUserMetadata()
+        }
+    }
+
+    fun updateProfile(
+        name: String? = null,
+        bio: String? = null,
+        picture: ByteArray? = null,
+        contentType: String? = null
+    ) {
+        viewModelScope.launch {
+            _isUpdatingProfile.value = true
+            try {
+                val avatarUrl = picture?.let {
+                    mediaRepository.blossomUpload(
+                        nostr.signer.get(),
+                        it,
+                        contentType ?: "image/jpeg"
+                    )
+                }
+                nostr.profiles.updateProfile(name, bio, avatarUrl)
+                _isUpdatingProfile.value = false
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+                _isUpdatingProfile.value = false
+            }
+        }
+    }
+
+    private fun observeContactList() {
+        viewModelScope.launch {
+            nostr.waitUntilInitialized()
+            nostr.profiles.contactListUpdates.collect { contacts ->
+                _contactList.value = contacts.toSet()
+            }
+        }
+    }
+
+    fun resetInternalState() {
+        _contactList.value = emptySet()
+        _isRelayListEmpty.value = false
+    }
+
+    fun addContact(address: String) {
+        viewModelScope.launch {
+            val pubkey = try {
+                if (address.contains("@")) {
+                    nostr.profiles.searchByAddress(address)
+                } else {
+                    PublicKey.parse(address)
+                }
+            } catch (e: Exception) {
+                showError("Invalid contact address: ${e.message}")
+                return@launch
+            }
+
+            if (pubkey in _contactList.value) return@launch
+
+            try {
+                val updated = _contactList.value + pubkey
+                nostr.profiles.setContactList(updated.toList())
+                _contactList.update { it + pubkey }
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+
+    fun removeContact(publicKey: PublicKey) {
+        viewModelScope.launch {
+            if (publicKey !in _contactList.value) return@launch
+
+            try {
+                val updated = _contactList.value - publicKey
+                nostr.profiles.setContactList(updated.toList())
+                _contactList.update { it - publicKey }
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+
+    fun searchByAddress(query: String, onResult: (PublicKey?) -> Unit) {
+        viewModelScope.launch {
+            try {
+                onResult(nostr.profiles.searchByAddress(query))
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+                onResult(null)
+            }
+        }
+    }
+
+    fun searchByNostr(query: String, onResult: (List<PublicKey>) -> Unit) {
+        viewModelScope.launch {
+            try {
+                onResult(nostr.profiles.searchByNostr(query))
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+                onResult(emptyList())
+            }
+        }
+    }
+
+    fun verifyActivity(pubkey: PublicKey, onResult: (Timestamp?) -> Unit) {
+        viewModelScope.launch {
+            try {
+                onResult(nostr.profiles.verifyActivity(pubkey))
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+                onResult(null)
+            }
+        }
+    }
+
+    fun verifyContact(pubkey: PublicKey, onResult: (Boolean) -> Unit) {
+        viewModelScope.launch {
+            try {
+                onResult(nostr.profiles.verifyContact(pubkey))
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+                onResult(false)
+            }
+        }
+    }
+
+    fun mutualContacts(pubkey: PublicKey, onResult: (Set<PublicKey>) -> Unit) {
+        viewModelScope.launch {
+            try {
+                onResult(nostr.profiles.mutualContacts(pubkey))
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+                onResult(emptySet())
+            }
+        }
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    fun checkRelayList() {
+        viewModelScope.launch {
+            val currentUser = nostr.signer.publicKeyFlow.filterNotNull().first()
+
+            val relays = withTimeoutOrNull(10.seconds) {
+                var result = nostr.relays.getMsgRelays(currentUser)
+                while (result.isEmpty()) {
+                    delay(500.milliseconds)
+                    result = nostr.relays.getMsgRelays(currentUser)
+                }
+                result
+            } ?: emptyList()
+
+            if (relays.isEmpty()) _isRelayListEmpty.value = true
+        }
+    }
+
+    fun dismissRelayWarning() {
+        _isRelayListEmpty.value = false
+    }
+
+    fun refetchMsgRelays() {
+        viewModelScope.launch {
+            val currentUser = nostr.signer.getPublicKeyAsync() ?: return@launch
+            val relays = nostr.relays.fetchMsgRelays(currentUser)
+
+            if (relays.isNotEmpty()) dismissRelayWarning()
+        }
+    }
+
+    fun useDefaultMsgRelayList() {
+        viewModelScope.launch {
+            try {
+                val defaultRelays = nostr.relays.getDefaultMsgRelayList()
+                nostr.relays.setMsgRelays(defaultRelays)
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+
+    fun loadCurrentUserRelayList() {
+        viewModelScope.launch {
+            try {
+                val currentUser =
+                    nostr.signer.getPublicKeyAsync() ?: throw Exception("User not found")
+                _currentUserRelayList.value = nostr.relays.getRelayList(currentUser)
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+
+    private suspend fun currentUserRelayListInternal(): 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()
+        }
+    }
+
+    fun addInboxRelay(relay: String) {
+        viewModelScope.launch {
+            try {
+                val relayUrl = RelayUrl.parse(relay)
+                val relays = currentUserRelayListInternal().toMutableMap()
+                relays[relayUrl] = RelayMetadata.WRITE
+
+                nostr.relays.setRelaylist(relays)
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+
+    fun addOutboxRelay(relay: String) {
+        viewModelScope.launch {
+            try {
+                val relayUrl = RelayUrl.parse(relay)
+                val relays = currentUserRelayListInternal().toMutableMap()
+                relays[relayUrl] = RelayMetadata.READ
+
+                nostr.relays.setRelaylist(relays)
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+
+    fun removeRelay(relay: String) {
+        viewModelScope.launch {
+            try {
+                val relayUrl = RelayUrl.parse(relay)
+                val relays = currentUserRelayListInternal().toMutableMap()
+                relays.remove(relayUrl)
+
+                nostr.relays.setRelaylist(relays)
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+
+    fun loadCurrentUserMsgRelayList() {
+        viewModelScope.launch {
+            try {
+                val currentUser =
+                    nostr.signer.getPublicKeyAsync() ?: throw Exception("User not found")
+                _currentUserMsgRelayList.value = nostr.relays.getMsgRelays(currentUser)
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+
+    private suspend fun currentUserMsgRelayListInternal(): 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()
+        }
+    }
+
+    fun addMsgRelay(relay: String) {
+        viewModelScope.launch {
+            try {
+                val relayUrl = RelayUrl.parse(relay)
+                val relays = currentUserMsgRelayListInternal().toMutableSet()
+                relays.add(relayUrl)
+
+                nostr.relays.setMsgRelays(relays.toList())
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+
+    fun removeMsgRelay(relay: String) {
+        viewModelScope.launch {
+            try {
+                val relayUrl = RelayUrl.parse(relay)
+                val relays = currentUserMsgRelayListInternal().toMutableSet()
+                relays.remove(relayUrl)
+
+                nostr.relays.setMsgRelays(relays.toList())
+            } catch (e: Exception) {
+                showError("Error: ${e.message}")
+            }
+        }
+    }
+}

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

@@ -1,5 +1,6 @@
 package su.reya.coop.viewmodel
 
+import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.channels.BufferOverflow
@@ -22,6 +23,8 @@ import su.reya.coop.Room
 import su.reya.coop.nostr.Nostr
 import su.reya.coop.repository.MediaRepository
 import su.reya.coop.roomId
+import su.reya.coop.viewmodel.createErrorHost
+import su.reya.coop.viewmodel.ErrorHost
 
 data class ChatState(
     val rooms: Map<Long, Room> = emptyMap(),
@@ -31,7 +34,7 @@ data class ChatState(
 class ChatViewModel(
     private val nostr: Nostr,
     private val mediaRepository: MediaRepository,
-) : BaseViewModel() {
+) : ViewModel(), ErrorHost by createErrorHost() {
     private val _state = MutableStateFlow(ChatState())
     val state = _state.stateIn(
         viewModelScope,

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

@@ -1,19 +1,28 @@
 package su.reya.coop.viewmodel
 
-import androidx.lifecycle.ViewModel
 import kotlinx.coroutines.channels.BufferOverflow
 import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.SharedFlow
 import kotlinx.coroutines.flow.asSharedFlow
 
-abstract class BaseViewModel : ViewModel() {
+interface ErrorHost {
+    val errorEvents: SharedFlow<String>
+
+    fun showError(message: String)
+}
+
+fun createErrorHost(): ErrorHost = ErrorHostImpl()
+
+private class ErrorHostImpl : ErrorHost {
     private val _errorEvents = MutableSharedFlow<String>(
         replay = 0,
         extraBufferCapacity = 10,
         onBufferOverflow = BufferOverflow.SUSPEND
     )
-    val errorEvents = _errorEvents.asSharedFlow()
 
-    protected fun showError(message: String) {
+    override val errorEvents: SharedFlow<String> = _errorEvents.asSharedFlow()
+
+    override fun showError(message: String) {
         _errorEvents.tryEmit(message)
     }
 }

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

@@ -1,5 +1,6 @@
 package su.reya.coop.viewmodel
 
+import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.coroutineScope
@@ -13,10 +14,9 @@ import kotlinx.coroutines.withTimeoutOrNull
 import rust.nostr.sdk.PublicKey
 import su.reya.coop.Profile
 import su.reya.coop.nostr.Nostr
-import kotlin.time.Clock
 import kotlin.time.Duration.Companion.milliseconds
 
-class NostrViewModel(private val nostr: Nostr) : BaseViewModel() {
+class NostrViewModel(private val nostr: Nostr) : ViewModel(), ErrorHost by createErrorHost() {
     private val profilesMutex = Mutex()
     private val profiles = mutableMapOf<PublicKey, MutableStateFlow<Profile?>>()
     private val metadataRequestChannel = Channel<PublicKey>(Channel.UNLIMITED)
@@ -51,40 +51,21 @@ class NostrViewModel(private val nostr: Nostr) : BaseViewModel() {
     }
 
     private suspend fun runMetadataBatching() {
-        // 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)
+            val batch = mutableSetOf(firstKey)
 
-            // Get current time
-            val lastFlushTime = Clock.System.now().toEpochMilliseconds()
-
-            while (batch.isNotEmpty()) {
-                // Get the next pubkey
-                val nextKey = withTimeoutOrNull(timeout.milliseconds) {
-                    metadataRequestChannel.receive()
+            // Collect up to 10 keys that arrive within 500ms
+            while (batch.size < 10) {
+                val nextKey =
+                    withTimeoutOrNull(500.milliseconds) { metadataRequestChannel.receive() }
+                        ?: break
+                batch.add(nextKey)
             }
 
-                // 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)
-                }
-            }
+            nostr.profiles.fetchMetadataBatch(batch.toList())
         }
     }
 

shared/src/commonMain/kotlin/su/reya/coop/viewmodel/account/AccountAuthDelegate.kt

@@ -1,252 +0,0 @@
-package su.reya.coop.viewmodel.account
-
-import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.asStateFlow
-import kotlinx.coroutines.flow.update
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
-import kotlinx.coroutines.withTimeoutOrNull
-import rust.nostr.sdk.AsyncNostrSigner
-import rust.nostr.sdk.EncryptedSecretKey
-import rust.nostr.sdk.Keys
-import rust.nostr.sdk.NostrConnect
-import rust.nostr.sdk.NostrConnectUri
-import rust.nostr.sdk.PublicKey
-import su.reya.coop.AppStorage
-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 kotlin.time.Duration.Companion.seconds
-
-data class AccountState(
-    val signerRequired: Boolean? = null,
-    val isNotificationBannerDismissed: Boolean = false,
-    val isImporting: Boolean = false,
-    val importError: String? = null,
-)
-
-class AccountAuthDelegate(
-    private val nostr: Nostr,
-    private val storage: AppStorage,
-    private val mediaRepository: MediaRepository,
-    private val externalSignerHandler: ExternalSignerHandler? = null,
-    private val defaultDispatcher: CoroutineDispatcher = Dispatchers.Default,
-    private val onError: (String) -> Unit,
-    private val onSignerReady: () -> Unit,
-    private val scope: CoroutineScope,
-) {
-    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(AccountState())
-    val state: StateFlow<AccountState> = _state.asStateFlow()
-
-    fun init() {
-        checkNotificationBannerDismissedStatus()
-        login()
-    }
-
-    private fun checkNotificationBannerDismissedStatus() {
-        scope.launch {
-            val dismissed = storage.get(KEY_BANNER_DISMISSED) == "true"
-            _state.update { it.copy(isNotificationBannerDismissed = dismissed) }
-        }
-    }
-
-    private fun login() {
-        scope.launch {
-            try {
-                val secret = withTimeoutOrNull(5.seconds) {
-                    storage.getSecret(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) }
-                    onSignerReady()
-                }.onFailure { e ->
-                    onError("Login failed: ${e.message}")
-                    _state.update { it.copy(signerRequired = true) }
-                }
-            } catch (e: Exception) {
-                onError("Login failed: ${e.message}")
-                _state.update { it.copy(signerRequired = true) }
-            }
-        }
-    }
-
-    fun logout(onLogout: () -> Unit = {}) {
-        scope.launch {
-            try {
-                nostr.signer.switch(Keys.generate())
-                nostr.prune()
-            } catch (e: Exception) {
-                onError("Logout encountered an error: ${e.message}")
-            } finally {
-                storage.clear(KEY_USER_SIGNER)
-                storage.clear(KEY_BANNER_DISMISSED)
-                onLogout()
-                _state.update { it.copy(signerRequired = true) }
-            }
-        }
-    }
-
-    fun dismissNotificationBanner() {
-        scope.launch {
-            storage.set(KEY_BANNER_DISMISSED, "true")
-            _state.update { it.copy(isNotificationBannerDismissed = true) }
-        }
-    }
-
-    private suspend fun getOrInitAppKeys(): Keys = withContext(defaultDispatcher) {
-        val secret = storage.getSecret(KEY_APP_KEYS)
-        if (secret != null) return@withContext Keys.parse(secret)
-        val keys = Keys.generate()
-        storage.setSecret(KEY_APP_KEYS, keys.secretKey().toBech32())
-        keys
-    }
-
-    private suspend fun createSigner(
-        secret: String,
-        password: String? = null
-    ): Pair<AsyncNostrSigner, String?> = withContext(defaultDispatcher) {
-        when {
-            secret.startsWith("nsec1") -> Keys.parse(secret) to null
-
-            secret.startsWith("ncryptsec1") -> {
-                if (password == null) throw IllegalArgumentException("Password is required")
-                val enc = EncryptedSecretKey.fromBech32(secret)
-                val decrypted = enc.decrypt(password)
-                val keys = Keys(decrypted)
-                keys to keys.secretKey().toBech32()
-            }
-
-            secret.startsWith("bunker://") -> {
-                val appKeys = getOrInitAppKeys()
-                val bunker = NostrConnectUri.parse(secret)
-                val timeout = 50.seconds
-                NostrConnect(uri = bunker, appKeys, timeout, null) to null
-            }
-
-            secret.startsWith("nip55://") -> {
-                val handler = externalSignerHandler ?: throw IllegalStateException("Not available")
-                val parts = secret.removePrefix("nip55://").split("/", limit = 2)
-                val packageName = parts[0]
-                val pubkey = PublicKey.parse(parts[1])
-
-                handler.setPackageName(packageName)
-                ExternalSignerProxy(handler, pubkey) to null
-            }
-
-            else -> throw IllegalArgumentException("Invalid secret format")
-        }
-    }
-
-    fun isExternalSignerAvailable(): Boolean {
-        return externalSignerHandler?.isAvailable() == true
-    }
-
-    fun importIdentity(secret: String, password: String? = null) {
-        scope.launch {
-            _state.update { it.copy(isImporting = true, importError = null) }
-            try {
-                val (signer, decryptedSecret) = createSigner(secret, password)
-
-                nostr.setSigner(signer)
-                onSignerReady()
-
-                storage.setSecret(KEY_USER_SIGNER, decryptedSecret ?: secret)
-                _state.update { it.copy(signerRequired = false, isImporting = false) }
-            } catch (e: Exception) {
-                onError("Import failed: ${e.message}")
-                _state.update { it.copy(isImporting = false, importError = e.message) }
-            }
-        }
-    }
-
-    fun connectExternalSigner() {
-        scope.launch {
-            _state.update { it.copy(isImporting = true, importError = null) }
-            try {
-                val handler =
-                    externalSignerHandler ?: throw IllegalStateException("Signer not available")
-
-                val permissions = SignerPermissions.toJson(
-                    listOf(
-                        SignerPermissions.signEvent(0),
-                        SignerPermissions.signEvent(3),
-                        SignerPermissions.signEvent(10000),
-                        SignerPermissions.signEvent(10050),
-                        SignerPermissions.signEvent(10063),
-                        SignerPermissions.signEvent(22242),
-                        SignerPermissions.signEvent(30030),
-                        SignerPermissions.signEvent(30315),
-                        SignerPermissions.nip44Encrypt(),
-                        SignerPermissions.nip44Decrypt(),
-                    )
-                )
-
-                val result = handler.getPublicKey(permissions) ?: throw Exception("Rejected")
-                val signer = ExternalSignerProxy(handler, result.pubkey)
-                val uri = "nip55://${result.packageName}/${result.pubkey.toHex()}"
-
-                nostr.setSigner(signer)
-                onSignerReady()
-
-                storage.setSecret(KEY_USER_SIGNER, uri)
-                _state.update { it.copy(signerRequired = false, isImporting = false) }
-            } catch (e: Exception) {
-                onError("External signer connection failed: ${e.message}")
-                _state.update { it.copy(isImporting = false, importError = e.message) }
-            }
-        }
-    }
-
-    fun createIdentity(
-        name: String,
-        bio: String?,
-        picture: ByteArray?,
-        contentType: String? = null
-    ) {
-        scope.launch {
-            _state.update { it.copy(isImporting = true, importError = null) }
-            try {
-                val keys = Keys.generate()
-                val secret = keys.secretKey().toBech32()
-                val avatarUrl = picture?.let {
-                    mediaRepository.blossomUpload(keys, it, contentType ?: "image/jpeg")
-                }
-                
-                nostr.profiles.createIdentity(
-                    keys = keys,
-                    name = name,
-                    bio = bio,
-                    picture = avatarUrl
-                )
-                onSignerReady()
-
-                storage.setSecret(KEY_USER_SIGNER, secret)
-                _state.update { it.copy(signerRequired = false, isImporting = false) }
-            } catch (e: Exception) {
-                onError("Identity creation failed: ${e.message}")
-                _state.update { it.copy(isImporting = false, importError = e.message) }
-            }
-        }
-    }
-}

shared/src/commonMain/kotlin/su/reya/coop/viewmodel/account/AccountContactDelegate.kt

@@ -1,137 +0,0 @@
-package su.reya.coop.viewmodel.account
-
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.asStateFlow
-import kotlinx.coroutines.flow.update
-import kotlinx.coroutines.launch
-import rust.nostr.sdk.PublicKey
-import rust.nostr.sdk.Timestamp
-import su.reya.coop.nostr.Nostr
-
-class AccountContactDelegate(
-    private val nostr: Nostr,
-    private val scope: CoroutineScope,
-    private val onError: (String) -> Unit,
-) {
-    private val _contactList = MutableStateFlow<Set<PublicKey>>(emptySet())
-    val contactList: StateFlow<Set<PublicKey>> = _contactList.asStateFlow()
-
-    fun init() {
-        observeContactList()
-    }
-
-    fun reset() {
-        _contactList.value = emptySet()
-    }
-
-    private fun observeContactList() {
-        scope.launch {
-            nostr.waitUntilInitialized()
-            nostr.profiles.contactListUpdates.collect { contacts ->
-                _contactList.value = contacts.toSet()
-            }
-        }
-    }
-
-    private fun newContact(publicKey: PublicKey) {
-        if (publicKey in contactList.value) return
-
-        scope.launch {
-            try {
-                val updated = contactList.value + publicKey
-                nostr.profiles.setContactList(updated.toList())
-                _contactList.update { it + publicKey }
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-            }
-        }
-    }
-
-    fun addContact(address: String) {
-        scope.launch {
-            val pubkey = try {
-                if (address.contains("@")) {
-                    nostr.profiles.searchByAddress(address)
-                } else {
-                    PublicKey.parse(address)
-                }
-            } catch (e: Exception) {
-                onError("Invalid contact address: ${e.message}")
-                return@launch
-            }
-
-            newContact(pubkey)
-        }
-    }
-
-    fun removeContact(publicKey: PublicKey) {
-        scope.launch {
-            if (publicKey !in contactList.value) return@launch
-
-            try {
-                val updated = contactList.value - publicKey
-                nostr.profiles.setContactList(updated.toList())
-                _contactList.update { it - publicKey }
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-            }
-        }
-    }
-
-    fun searchByAddress(query: String, onResult: (PublicKey?) -> Unit) {
-        scope.launch {
-            try {
-                onResult(nostr.profiles.searchByAddress(query))
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-                onResult(null)
-            }
-        }
-    }
-
-    fun searchByNostr(query: String, onResult: (List<PublicKey>) -> Unit) {
-        scope.launch {
-            try {
-                onResult(nostr.profiles.searchByNostr(query))
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-                onResult(emptyList())
-            }
-        }
-    }
-
-    fun verifyActivity(pubkey: PublicKey, onResult: (Timestamp?) -> Unit) {
-        scope.launch {
-            try {
-                onResult(nostr.profiles.verifyActivity(pubkey))
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-                onResult(null)
-            }
-        }
-    }
-
-    fun verifyContact(pubkey: PublicKey, onResult: (Boolean) -> Unit) {
-        scope.launch {
-            try {
-                onResult(nostr.profiles.verifyContact(pubkey))
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-                onResult(false)
-            }
-        }
-    }
-
-    fun mutualContacts(pubkey: PublicKey, onResult: (Set<PublicKey>) -> Unit) {
-        scope.launch {
-            try {
-                onResult(nostr.profiles.mutualContacts(pubkey))
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-                onResult(emptySet())
-            }
-        }
-    }
-}

shared/src/commonMain/kotlin/su/reya/coop/viewmodel/account/AccountProfileDelegate.kt

@@ -1,81 +0,0 @@
-package su.reya.coop.viewmodel.account
-
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.ExperimentalCoroutinesApi
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.SharingStarted
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.asStateFlow
-import kotlinx.coroutines.flow.filter
-import kotlinx.coroutines.flow.flatMapLatest
-import kotlinx.coroutines.flow.flow
-import kotlinx.coroutines.flow.flowOf
-import kotlinx.coroutines.flow.map
-import kotlinx.coroutines.flow.merge
-import kotlinx.coroutines.flow.stateIn
-import kotlinx.coroutines.launch
-import rust.nostr.sdk.PublicKey
-import su.reya.coop.Profile
-import su.reya.coop.nostr.Nostr
-import su.reya.coop.repository.MediaRepository
-
-class AccountProfileDelegate(
-    private val nostr: Nostr,
-    private val mediaRepository: MediaRepository,
-    private val onError: (String) -> Unit,
-    private val scope: CoroutineScope,
-) {
-    private val _isUpdatingProfile = MutableStateFlow(false)
-    val isUpdatingProfile: StateFlow<Boolean> = _isUpdatingProfile.asStateFlow()
-
-    @OptIn(ExperimentalCoroutinesApi::class)
-    val currentUserProfile: StateFlow<Profile?> = nostr.signer.publicKeyFlow
-        .flatMapLatest { pubkey ->
-            if (pubkey != null) currentUserProfileFlow(pubkey) else flowOf(null)
-        }
-        .stateIn(scope, SharingStarted.WhileSubscribed(5000), null)
-
-    @OptIn(ExperimentalCoroutinesApi::class)
-    private fun currentUserProfileFlow(pubkey: PublicKey) = merge(
-        flow {
-            nostr.waitUntilInitialized()
-            val cached = nostr.profiles.getAllCacheMetadata()[pubkey]
-            if (cached != null) emit(Profile(pubkey, cached))
-            nostr.profiles.fetchMetadataBatch(listOf(pubkey))
-        },
-        nostr.profiles.metadataUpdates
-            .filter { (p, _) -> p == pubkey }
-            .map { (p, m) -> Profile(p, m) }
-    )
-
-    fun getUserMetadata() {
-        scope.launch {
-            nostr.profiles.getUserMetadata()
-        }
-    }
-
-    fun updateProfile(
-        name: String? = null,
-        bio: String? = null,
-        picture: ByteArray? = null,
-        contentType: String? = null
-    ) {
-        scope.launch {
-            _isUpdatingProfile.value = true
-            try {
-                val avatarUrl = picture?.let {
-                    mediaRepository.blossomUpload(
-                        nostr.signer.get(),
-                        it,
-                        contentType ?: "image/jpeg"
-                    )
-                }
-                nostr.profiles.updateProfile(name, bio, avatarUrl)
-                _isUpdatingProfile.value = false
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-                _isUpdatingProfile.value = false
-            }
-        }
-    }
-}

shared/src/commonMain/kotlin/su/reya/coop/viewmodel/account/AccountRelayDelegate.kt

@@ -1,185 +0,0 @@
-package su.reya.coop.viewmodel.account
-
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.ExperimentalCoroutinesApi
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.asStateFlow
-import kotlinx.coroutines.flow.filterNotNull
-import kotlinx.coroutines.flow.first
-import kotlinx.coroutines.launch
-import rust.nostr.sdk.RelayMetadata
-import rust.nostr.sdk.RelayUrl
-import su.reya.coop.nostr.Nostr
-import kotlin.time.Duration.Companion.seconds
-
-class AccountRelayDelegate(
-    private val nostr: Nostr,
-    private val onError: (String) -> Unit,
-    private val scope: CoroutineScope,
-) {
-    private val _isRelayListEmpty = MutableStateFlow(false)
-    val isRelayListEmpty = _isRelayListEmpty.asStateFlow()
-
-    private val _currentUserRelayList = MutableStateFlow<Map<RelayUrl, RelayMetadata?>>(emptyMap())
-    val currentUserRelayList = _currentUserRelayList.asStateFlow()
-
-    private val _currentUserMsgRelayList = MutableStateFlow<List<RelayUrl>>(emptyList())
-    val currentUserMsgRelayList = _currentUserMsgRelayList.asStateFlow()
-
-    fun reset() {
-        _isRelayListEmpty.value = false
-    }
-
-    @OptIn(ExperimentalCoroutinesApi::class)
-    fun checkRelayList() {
-        scope.launch {
-            val currentUser = nostr.signer.publicKeyFlow.filterNotNull().first()
-            println("user: ${currentUser.toBech32()}")
-
-            // Small delay to ensure subscription is ready
-            delay(6.seconds)
-
-            val relays = nostr.relays.getMsgRelays(currentUser)
-            if (relays.isEmpty()) _isRelayListEmpty.value = true
-        }
-    }
-
-    fun dismissRelayWarning() {
-        _isRelayListEmpty.value = false
-    }
-
-    fun refetchMsgRelays() {
-        scope.launch {
-            val currentUser = nostr.signer.getPublicKeyAsync() ?: return@launch
-            val relays = nostr.relays.fetchMsgRelays(currentUser)
-
-            if (relays.isNotEmpty()) dismissRelayWarning()
-        }
-    }
-
-    fun useDefaultMsgRelayList() {
-        scope.launch {
-            try {
-                val defaultRelays = nostr.relays.getDefaultMsgRelayList()
-                nostr.relays.setMsgRelays(defaultRelays)
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-            }
-        }
-    }
-
-    fun loadCurrentUserRelayList() {
-        scope.launch {
-            try {
-                val currentUser =
-                    nostr.signer.getPublicKeyAsync() ?: throw Exception("User not found")
-                _currentUserRelayList.value = nostr.relays.getRelayList(currentUser)
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-            }
-        }
-    }
-
-    private suspend fun currentUserRelayListInternal(): Map<RelayUrl, RelayMetadata?> {
-        try {
-            val currentUser = nostr.signer.getPublicKeyAsync() ?: throw Exception("User not found")
-            return nostr.relays.getRelayList(currentUser)
-        } catch (e: Exception) {
-            onError("Error: ${e.message}")
-            return emptyMap()
-        }
-    }
-
-    fun addInboxRelay(relay: String) {
-        scope.launch {
-            try {
-                val relayUrl = RelayUrl.parse(relay)
-                val relays = currentUserRelayListInternal().toMutableMap()
-                relays[relayUrl] = RelayMetadata.WRITE
-
-                nostr.relays.setRelaylist(relays)
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-            }
-        }
-    }
-
-    fun addOutboxRelay(relay: String) {
-        scope.launch {
-            try {
-                val relayUrl = RelayUrl.parse(relay)
-                val relays = currentUserRelayListInternal().toMutableMap()
-                relays[relayUrl] = RelayMetadata.READ
-
-                nostr.relays.setRelaylist(relays)
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-            }
-        }
-    }
-
-    fun removeRelay(relay: String) {
-        scope.launch {
-            try {
-                val relayUrl = RelayUrl.parse(relay)
-                val relays = currentUserRelayListInternal().toMutableMap()
-                relays.remove(relayUrl)
-
-                nostr.relays.setRelaylist(relays)
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-            }
-        }
-    }
-
-    fun loadCurrentUserMsgRelayList() {
-        scope.launch {
-            try {
-                val currentUser =
-                    nostr.signer.getPublicKeyAsync() ?: throw Exception("User not found")
-                _currentUserMsgRelayList.value = nostr.relays.getMsgRelays(currentUser)
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-            }
-        }
-    }
-
-    private suspend fun currentUserMsgRelayListInternal(): List<RelayUrl> {
-        try {
-            val currentUser = nostr.signer.getPublicKeyAsync() ?: throw Exception("User not found")
-            return nostr.relays.getMsgRelays(currentUser)
-        } catch (e: Exception) {
-            onError("Error: ${e.message}")
-            return emptyList()
-        }
-    }
-
-    fun addMsgRelay(relay: String) {
-        scope.launch {
-            try {
-                val relayUrl = RelayUrl.parse(relay)
-                val relays = currentUserMsgRelayListInternal().toMutableSet()
-                relays.add(relayUrl)
-
-                nostr.relays.setMsgRelays(relays.toList())
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-            }
-        }
-    }
-
-    fun removeMsgRelay(relay: String) {
-        scope.launch {
-            try {
-                val relayUrl = RelayUrl.parse(relay)
-                val relays = currentUserMsgRelayListInternal().toMutableSet()
-                relays.remove(relayUrl)
-
-                nostr.relays.setMsgRelays(relays.toList())
-            } catch (e: Exception) {
-                onError("Error: ${e.message}")
-            }
-        }
-    }
-}

shared/src/commonMain/kotlin/su/reya/coop/viewmodel/account/AccountViewModel.kt

@@ -1,146 +0,0 @@
-package su.reya.coop.viewmodel.account
-
-import androidx.lifecycle.viewModelScope
-import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.flow.StateFlow
-import rust.nostr.sdk.PublicKey
-import rust.nostr.sdk.RelayMetadata
-import rust.nostr.sdk.RelayUrl
-import rust.nostr.sdk.Timestamp
-import su.reya.coop.AppStorage
-import su.reya.coop.Profile
-import su.reya.coop.nostr.ExternalSignerHandler
-import su.reya.coop.nostr.Nostr
-import su.reya.coop.repository.MediaRepository
-import su.reya.coop.viewmodel.BaseViewModel
-
-class AccountViewModel(
-    nostr: Nostr,
-    storage: AppStorage,
-    mediaRepository: MediaRepository,
-    externalSignerHandler: ExternalSignerHandler? = null,
-    defaultDispatcher: CoroutineDispatcher = Dispatchers.Default,
-) : BaseViewModel() {
-    private val relays = AccountRelayDelegate(
-        nostr = nostr,
-        onError = ::showError,
-        scope = viewModelScope,
-    )
-
-    private val auth = AccountAuthDelegate(
-        nostr = nostr,
-        storage = storage,
-        mediaRepository = mediaRepository,
-        externalSignerHandler = externalSignerHandler,
-        defaultDispatcher = defaultDispatcher,
-        onError = ::showError,
-        onSignerReady = {
-            profile.getUserMetadata()
-            relays.checkRelayList()
-        },
-        scope = viewModelScope,
-    )
-
-    private val profile = AccountProfileDelegate(
-        nostr = nostr,
-        mediaRepository = mediaRepository,
-        onError = ::showError,
-        scope = viewModelScope,
-    )
-
-    private val contacts = AccountContactDelegate(
-        nostr = nostr,
-        onError = ::showError,
-        scope = viewModelScope,
-    )
-
-
-    val state = auth.state
-
-    val currentUserProfile: StateFlow<Profile?> = profile.currentUserProfile
-
-    val isUpdatingProfile: StateFlow<Boolean> = profile.isUpdatingProfile
-
-    val contactList: StateFlow<Set<PublicKey>> = contacts.contactList
-
-    val isRelayListEmpty: StateFlow<Boolean> = relays.isRelayListEmpty
-
-    val currentUserRelayList: StateFlow<Map<RelayUrl, RelayMetadata?>> = relays.currentUserRelayList
-
-    val currentUserMsgRelayList: StateFlow<List<RelayUrl>> = relays.currentUserMsgRelayList
-
-    init {
-        auth.init()
-        contacts.init()
-    }
-
-    fun logout(onLogout: () -> Unit = {}) = auth.logout(onLogout)
-
-    fun dismissNotificationBanner() = auth.dismissNotificationBanner()
-
-    fun connectExternalSigner() = auth.connectExternalSigner()
-
-    fun isExternalSignerAvailable(): Boolean = auth.isExternalSignerAvailable()
-
-    fun importIdentity(secret: String, password: String? = null) =
-        auth.importIdentity(secret, password)
-
-    fun createIdentity(
-        name: String,
-        bio: String? = null,
-        picture: ByteArray? = null,
-        contentType: String? = null,
-    ) = auth.createIdentity(name, bio, picture, contentType)
-
-    fun updateProfile(
-        name: String? = null,
-        bio: String? = null,
-        picture: ByteArray? = null,
-        contentType: String? = null,
-    ) {
-        profile.updateProfile(name, bio, picture, contentType)
-    }
-
-    fun resetInternalState() {
-        contacts.reset()
-        relays.reset()
-    }
-
-    fun addContact(address: String) = contacts.addContact(address)
-
-    fun removeContact(publicKey: PublicKey) = contacts.removeContact(publicKey)
-
-    fun searchByAddress(query: String, onResult: (PublicKey?) -> Unit) =
-        contacts.searchByAddress(query, onResult)
-
-    fun searchByNostr(query: String, onResult: (List<PublicKey>) -> Unit) =
-        contacts.searchByNostr(query, onResult)
-
-    fun verifyActivity(pubkey: PublicKey, onResult: (Timestamp?) -> Unit) =
-        contacts.verifyActivity(pubkey, onResult)
-
-    fun verifyContact(pubkey: PublicKey, onResult: (Boolean) -> Unit) =
-        contacts.verifyContact(pubkey, onResult)
-
-    fun mutualContacts(pubkey: PublicKey, onResult: (Set<PublicKey>) -> Unit) =
-        contacts.mutualContacts(pubkey, onResult)
-
-    fun dismissRelayWarning() = relays.dismissRelayWarning()
-
-    fun refetchMsgRelays() = relays.refetchMsgRelays()
-
-    fun useDefaultMsgRelayList() = relays.useDefaultMsgRelayList()
-
-    fun loadCurrentUserRelayList() = relays.loadCurrentUserRelayList()
-
-    fun addInboxRelay(relay: String) = relays.addInboxRelay(relay)
-
-    fun addOutboxRelay(relay: String) = relays.addOutboxRelay(relay)
-
-    fun loadCurrentUserMsgRelayList() = relays.loadCurrentUserMsgRelayList()
-
-    fun addMsgRelay(relay: String) = relays.addMsgRelay(relay)
-
-    fun removeMsgRelay(relay: String) = relays.removeMsgRelay(relay)
-}