1

tools/chatgui-android/app/src/main/java/com/utun/chat/MainActivity.kt

@@ -8,6 +8,7 @@ import androidx.compose.runtime.*
 import androidx.core.content.ContextCompat
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.utun.chat.data.InviteData
+import com.utun.chat.data.LogManager
 import com.utun.chat.data.NativeLib
 import com.utun.chat.headless.HeadlessService
 import com.utun.chat.ui.screens.*
@@ -30,6 +31,7 @@ class MainActivity : ComponentActivity() {
             var qrResult by remember { mutableStateOf<String?>(null) }
             var showJoinDialog by remember { mutableStateOf(false) }
             var joinAutoLink by remember { mutableStateOf<String?>(null) }
+            var inviteLinkText by remember { mutableStateOf<String?>(null) }
 
             BackHandler(enabled = screen != Screen.ChannelList) {
                 when (screen) {
@@ -57,6 +59,16 @@ class MainActivity : ComponentActivity() {
                         onSelectChannel = { ch -> vm.selectChannel(ch); screen = Screen.Chat },
                         onCreateChannel = { vm.createChannel("general", "channel_1") },
                         onJoinChannel = { showJoinDialog = true; joinAutoLink = null },
+                        onInviteClick = { ch ->
+                            val chId = ch.id.toLongOrNull()
+                            if (chId == null) {
+                                LogManager.addLog("ERROR", "INVITE", "channel id is not numeric: ${ch.id}")
+                            } else {
+                                val link = NativeLib.encodeInviteLink(chId)
+                                if (link != null) inviteLinkText = link
+                                else LogManager.addLog("ERROR", "INVITE", "encodeInviteLink returned null for ch=$chId")
+                            }
+                        },
                         onSettings = { screen = Screen.Settings },
                         onLogs = { screen = Screen.Logs },
                         onRefresh = { vm.requestRefresh() }
@@ -128,6 +140,10 @@ class MainActivity : ComponentActivity() {
                     onDismiss = { showJoinDialog = false }
                 )
             }
+
+            inviteLinkText?.let { link ->
+                InviteLinkDialog(link = link, onDismiss = { inviteLinkText = null })
+            }
         }
     }
 }

tools/chatgui-android/app/src/main/java/com/utun/chat/data/NativeLib.kt

@@ -48,6 +48,8 @@ object NativeLib {
 
     fun getMyNodeId(): Long = nativeGetMyNodeId()
 
+    fun encodeInviteLink(channelId: Long): String? = nativeEncodeInviteLink(channelId)
+
     fun ping() { nativePing() }
     fun isResponsive(): Boolean = nativeIsResponsive()
 
@@ -130,6 +132,7 @@ object NativeLib {
     private external fun nativeRegenerateKeys()
     private external fun nativeClearDatabase(): Boolean
     private external fun nativeGetMyNodeId(): Long
+    private external fun nativeEncodeInviteLink(channelId: Long): String?
     private external fun nativeRestart(configText: String): Boolean
     private external fun nativePing()
     private external fun nativeIsResponsive(): Boolean

tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/ChannelListScreen.kt

@@ -33,6 +33,7 @@ fun ChannelListScreen(
     onSelectChannel: (Channel) -> Unit,
     onCreateChannel: () -> Unit,
     onJoinChannel: () -> Unit,
+    onInviteClick: (Channel) -> Unit,
     onSettings: () -> Unit,
     onLogs: () -> Unit,
     onRefresh: () -> Unit = {}
@@ -87,7 +88,8 @@ fun ChannelListScreen(
                                 Box(Modifier.width(4.dp).fillMaxHeight().background(barColor))
                                 Row(Modifier.fillMaxWidth().padding(12.dp)) {
                                     Box(Modifier.size(44.dp), contentAlignment = Alignment.Center) {
-                                        Surface(shape = MaterialTheme.shapes.small) {
+                                        Surface(shape = MaterialTheme.shapes.small,
+                                            modifier = Modifier.clickable { onInviteClick(ch) }) {
                                             Text("#", fontSize = 22.sp, modifier = Modifier.padding(8.dp))
                                         }
                                         if (badgeText.isNotEmpty()) {