chore: add nostr service

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

@@ -6,15 +6,33 @@ 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)
 
+        // Get database directory
+        val dbDir = File(filesDir, "nostr")
+        dbDir.mkdirs()
+
+        // Initialize nostr client
+        nostr.init(dbDir.absolutePath)
+
+        // Connect to bootstrap relays
+        lifecycleScope.launch {
+            nostr.connect()
+        }
+
         setContent {
             App()
         }
+
     }
 }
 

gradle.properties

@@ -10,3 +10,13 @@ org.gradle.caching=true
 #Android
 android.nonTransitiveRClass=true
 android.useAndroidX=true
+android.defaults.buildfeatures.resvalues=true
+android.sdk.defaultTargetSdkToCompileSdkIfUnset=false
+android.enableAppCompileTimeRClass=false
+android.usesSdkInManifest.disallowed=false
+android.uniquePackageNames=false
+android.dependency.useConstraints=true
+android.r8.strictFullModeForKeepRules=false
+android.r8.optimizedResourceShrinking=false
+android.builtInKotlin=false
+android.newDsl=false

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-agp = "8.13.2"
+agp = "9.2.0"
 android-compileSdk = "36"
 android-minSdk = "24"
 android-targetSdk = "36"

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

shared/build.gradle.kts

@@ -24,7 +24,7 @@ kotlin {
     
     sourceSets {
         commonMain.dependencies {
-            // put your Multiplatform dependencies here
+            implementation("org.rust-nostr:nostr-sdk-kmp:0.44.3")
         }
         commonTest.dependencies {
             implementation(libs.kotlin.test)

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

@@ -0,0 +1,28 @@
+package su.reya.coop
+
+import rust.nostr.sdk.Client
+import rust.nostr.sdk.ClientBuilder
+import rust.nostr.sdk.ClientOptions
+import rust.nostr.sdk.NostrDatabase
+import rust.nostr.sdk.NostrGossip
+import rust.nostr.sdk.RelayUrl
+
+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()
+    }
+}