chore: init nostr

composeApp/build.gradle.kts

@@ -29,6 +29,7 @@ kotlin {
             implementation(libs.compose.uiToolingPreview)
             implementation(libs.androidx.lifecycle.viewmodelCompose)
             implementation(libs.androidx.lifecycle.runtimeCompose)
+            implementation("org.rust-nostr:nostr-sdk-kmp:0.44.3")
         }
         commonTest.dependencies {
             implementation(libs.kotlin.test)

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

@@ -1,11 +1,8 @@
 package su.reya.coop.coop
 
-import androidx.compose.animation.AnimatedVisibility
-import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.safeContentPadding
 import androidx.compose.material3.Button
 import androidx.compose.material3.MaterialTheme
@@ -14,10 +11,6 @@ import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.tooling.preview.Preview
-import org.jetbrains.compose.resources.painterResource
-
-import coop.composeapp.generated.resources.Res
-import coop.composeapp.generated.resources.compose_multiplatform
 
 @Composable
 @Preview
@@ -34,16 +27,6 @@ fun App() {
             Button(onClick = { showContent = !showContent }) {
                 Text("Click me!")
             }
-            AnimatedVisibility(showContent) {
-                val greeting = remember { Greeting().greet() }
-                Column(
-                    modifier = Modifier.fillMaxWidth(),
-                    horizontalAlignment = Alignment.CenterHorizontally,
-                ) {
-                    Image(painterResource(Res.drawable.compose_multiplatform), null)
-                    Text("Compose: $greeting")
-                }
-            }
         }
     }
 }

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

@@ -1,9 +0,0 @@
-package su.reya.coop.coop
-
-class Greeting {
-    private val platform = getPlatform()
-
-    fun greet(): String {
-        return "Hello, ${platform.name}!"
-    }
-}

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

@@ -6,12 +6,28 @@ import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.tooling.preview.Preview
+import androidx.lifecycle.lifecycleScope
+import kotlinx.coroutines.launch
+import java.io.File
 
 class MainActivity : ComponentActivity() {
+    private val nostr = Nostr()
+
     override fun onCreate(savedInstanceState: Bundle?) {
         enableEdgeToEdge()
         super.onCreate(savedInstanceState)
 
+        val dbDir = File(filesDir, "nostr")
+        dbDir.mkdirs()
+
+        // Initialize nostr client
+        nostr.init(dbDir.absolutePath)
+
+        // Connect to bootstrap relays
+        lifecycleScope.launch {
+            nostr.connect()
+        }
+
         setContent {
             App()
         }

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

@@ -0,0 +1,23 @@
+package su.reya.coop.coop
+
+import rust.nostr.sdk.*
+
+class Nostr {
+    var client: Client? = null
+        private set
+
+    fun init(dbPath: String) {
+        val lmdb = NostrDatabase.lmdb(dbPath)
+        val gossip = NostrGossip.inMemory()
+        val opts = ClientOptions().automaticAuthentication(false)
+
+        client = ClientBuilder().database(lmdb).gossip(gossip).opts(opts).build()
+    }
+
+    suspend fun connect() {
+        this.client?.addRelay(RelayUrl.parse("wss://relay.damus.io"))
+        this.client?.addRelay(RelayUrl.parse("wss://relay.primal.net"))
+        this.client?.addRelay(RelayUrl.parse("wss://user.kindpag.es"))
+        this.client?.connect()
+    }
+}