comunicmobile/lib/helpers/database/conversation_messages_database_helper.dart

import 'package:comunic/helpers/database/database_contract.dart';
import 'package:comunic/helpers/database/model_database_helper.dart';
import 'package:comunic/lists/conversation_messages_list.dart';
import 'package:comunic/models/conversation_message.dart';
import 'package:meta/meta.dart';

/// Conversation messages database helper
///
/// @author Pierre HUBERT

class ConversationMessagesDatabaseHelper
    extends ModelDatabaseHelper<ConversationMessage> {
  @override
  ConversationMessage initializeFromMap(Map<String, dynamic> map) {
    return ConversationMessage.fromMap(map);
  }

  @override
  String tableName() {
    return ConversationsMessagesTableContract.TABLE_NAME;
  }

  /// Get all the message cached for a given conversation
  Future<ConversationMessagesList> getAllMessagesConversations(
      int conversationID,
      {int lastMessageID = 0}) async {
    final list = await getMultiple(
      where: "${ConversationsMessagesTableContract.C_CONVERSATION_ID} = ? "
          "AND ${BaseTableContract.C_ID} > ?",
      whereArgs: [conversationID, lastMessageID],
    );

    // Turn the list into a conversation messages list
    ConversationMessagesList finalList = ConversationMessagesList();
    finalList.addAll(list);
    return finalList;
  }

  /// Update the content of a message
  Future<bool> updateMessageContent({
    @required int id,
    @required String newContent,
  }) async {
    assert(id != null);
    assert(newContent != null);

    final message = await get(id);

    if(message == null)
      return false;

    // Update the conversation message using the map
    final map = message.toMap();
    map[ConversationsMessagesTableContract.C_MESSAGE] = newContent;

    await insertOrUpdate(ConversationMessage.fromMap(map));

    return true; // Success
  }
}