avoid duplicated messages after sending

It could happen that when sending a message it was received on server but if the servers response is not received, the retry was triggered in the talk app.
This sometimes happened when internet connection was not the best.

Best would be that messages with the same referenceId would be refused on server side, but this won't be the case for now. So messages with the same referenceId are NOT refused as this would be too much overhead as there would be additional queries on server for every received message)

For now, the automatic retry logic is just removed so duplicated messages won't be created automatically.
However it's still possible to manually trigger the retry via button. In this case it is not guaranteed that there won't be duplicates.

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

app/src/main/java/com/nextcloud/talk/chat/data/network/OfflineFirstChatRepository.kt

@@ -44,7 +44,6 @@ import kotlinx.coroutines.flow.catch
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.flow.map
-import kotlinx.coroutines.flow.retryWhen
 import kotlinx.coroutines.isActive
 import kotlinx.coroutines.launch
 import java.io.IOException
@@ -839,14 +838,6 @@ class OfflineFirstChatRepository @Inject constructor(
 
             emit(Result.success(chatMessageModel))
         }
-            .retryWhen { cause, attempt ->
-                if (cause is IOException && attempt < SEND_MESSAGE_RETRY_ATTEMPTS) {
-                    delay(SEND_MESSAGE_RETRY_DELAY)
-                    return@retryWhen true
-                } else {
-                    return@retryWhen false
-                }
-            }
             .catch { e ->
                 Log.e(TAG, "Error when sending message", e)
 
@@ -1038,7 +1029,5 @@ class OfflineFirstChatRepository @Inject constructor(
         private const val DELAY_TO_ENSURE_MESSAGES_ARE_ADDED: Long = 100
         private const val DEFAULT_MESSAGES_LIMIT = 100
         private const val MILLIES = 1000
-        private const val SEND_MESSAGE_RETRY_ATTEMPTS = 3
-        private const val SEND_MESSAGE_RETRY_DELAY: Long = 2000
     }
 }