Select any joined channel when opening an Android server link

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

@@ -42,6 +42,8 @@ import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.compose.material3.SnackbarHostState
@@ -271,6 +273,8 @@ class MainActivity : AppCompatActivity() {
                 }
                 val pmInvite by vm.pmInvite.collectAsState()
                 val linkJoin by vm.linkJoin.collectAsState()
+                val serverLink by vm.serverLink.collectAsState()
+                val serverChannels by vm.channels.collectAsState()
                 val joinedChannel by vm.joinedChannel.collectAsState()
                 LaunchedEffect(joinedChannel) {
                     joinedChannel?.let { channel ->
@@ -598,6 +602,26 @@ class MainActivity : AppCompatActivity() {
                         } }
                     )
                 }
+                serverLink?.let { link ->
+                    val channels = serverChannels.filter { NativeLib.isChannelMember(it.id, NativeLib.getMyNodeId()) }
+                    AlertDialog(
+                        onDismissRequest = vm::dismissServerLink,
+                        title = { Text(stringResource(R.string.server_add_channel)) },
+                        text = {
+                            if (channels.isEmpty()) Text(stringResource(R.string.server_add_no_channels))
+                            else LazyColumn(Modifier.heightIn(max = 320.dp)) {
+                                items(channels.size) { index ->
+                                    val channel = channels[index]
+                                    TextButton(onClick = { vm.openInviteLink(link, channel.id.toLong()) }) {
+                                        Text(channel.name + " (" + channel.id + ")")
+                                    }
+                                }
+                            }
+                        },
+                        confirmButton = {},
+                        dismissButton = { TextButton(onClick = vm::dismissServerLink) { Text(stringResource(R.string.cancel)) } }
+                    )
+                }
                 linkJoin?.let { state ->
                     AlertDialog(
                         onDismissRequest = vm::dismissLinkJoin,
@@ -609,14 +633,17 @@ class MainActivity : AppCompatActivity() {
                                     LinearProgressIndicator(Modifier.fillMaxWidth())
                                     Text(stringResource(R.string.connecting_peer))
                                 } else {
-                                    Text(if (state.channelId == 0L) stringResource(R.string.invalid_invite_link)
+                                    Text(if (state.result == -10) stringResource(R.string.server_add_bad_key)
+                                        else if (state.channelId == 0L) stringResource(R.string.invalid_invite_link)
                                         else stringResource(R.string.invite_join_failed, state.result ?: -1),
                                         color = MaterialTheme.colorScheme.error)
                                 }
                             }
                         },
                         confirmButton = {
-                            if (!state.pending && state.channelId != 0L) TextButton(onClick = { vm.openInviteLink(state.link) }) {
+                            if (!state.pending && state.channelId != 0L) TextButton(onClick = {
+                                vm.openInviteLink(state.link, if (state.serverAddition) state.channelId else 0)
+                            }) {
                                 Text(stringResource(R.string.retry))
                             }
                         },

tools/chatgui-android/app/src/main/res/values-ru/strings.xml

@@ -600,4 +600,7 @@
     <string name="media_audio_failed">Не удалось использовать выбранное аудиоустройство. Проверьте текущие микрофон и выход.</string>
     <string name="settings_update_failed">Не удалось обновить настройки. Повторите попытку.</string>
     <string name="database_reset_failed">Не удалось завершить очистку базы. Повторите попытку.</string>
+    <string name="server_add_channel">Добавить сервер в канал</string>
+    <string name="server_add_no_channels">Создайте канал перед добавлением сервера.</string>
+    <string name="server_add_bad_key">Ключ доступа к серверу неверен или был изменён.</string>
 </resources>

tools/chatgui-android/app/src/main/res/values/strings.xml

@@ -599,4 +599,7 @@
     <string name="media_audio_failed">Could not use the selected audio device. Check the current microphone and output.</string>
     <string name="settings_update_failed">Could not update the settings. Try again.</string>
     <string name="database_reset_failed">Could not finish clearing the database. Try again.</string>
+    <string name="server_add_channel">Add server to channel</string>
+    <string name="server_add_no_channels">Create a channel before adding a server.</string>
+    <string name="server_add_bad_key">The server access key is invalid or has changed.</string>
 </resources>