add nostr view model

shared/build.gradle.kts

@@ -24,6 +24,8 @@ kotlin {
 
     sourceSets {
         commonMain.dependencies {
+            implementation("org.jetbrains.androidx.lifecycle:lifecycle-viewmodel-compose:2.10.0")
+            implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.10.2")
             implementation("org.rust-nostr:nostr-sdk-kmp:0.44.3")
         }
         commonTest.dependencies {

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

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

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

@@ -25,4 +25,8 @@ class Nostr {
         this.client?.addRelay(RelayUrl.parse("wss://user.kindpag.es"))
         this.client?.connect()
     }
+
+    suspend fun disconnect() {
+        this.client?.shutdown()
+    }
 }

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

@@ -0,0 +1,44 @@
+package su.reya.coop
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.NonCancellable
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import su.reya.coop.storage.SecretStorage
+
+class NostrViewModel(
+    private val nostr: Nostr,
+    private val secretStore: SecretStorage
+) : ViewModel() {
+    private val _isConnected = MutableStateFlow(false)
+    val isConnected = _isConnected.asStateFlow()
+
+    fun initAndConnect(dbPath: String) {
+        // Initialize nostr client
+        nostr.init(dbPath)
+
+        viewModelScope.launch {
+            try {
+                // Connect to bootstrap relays
+                nostr.connect()
+                _isConnected.value = true
+            } catch (e: Exception) {
+                _isConnected.value = false
+                println(e)
+            }
+        }
+    }
+
+    override fun onCleared() {
+        super.onCleared()
+        // Ensure all relays are disconnect
+        viewModelScope.launch {
+            withContext(NonCancellable) {
+                nostr.disconnect()
+            }
+        }
+    }
+}

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

@@ -1,7 +0,0 @@
-package su.reya.coop
-
-interface Platform {
-    val name: String
-}
-
-expect fun getPlatform(): Platform

shared/src/commonMain/kotlin/su/reya/coop/storage/SecretStorage.kt

@@ -0,0 +1,8 @@
+package su.reya.coop.storage
+
+interface SecretStorage {
+    suspend fun get(key: String): String?
+    suspend fun set(key: String, value: String)
+    suspend fun clear(key: String)
+    suspend fun has(key: String): Boolean
+}