// SPDX-FileCopyrightText: 2019-Present Christian Kußowski
// SPDX-FileCopyrightText: 2019-Present Contributors to FluffyChat
//
// SPDX-License-Identifier: AGPL-3.0-or-later

import 'package:matrix/matrix.dart';
import 'package:tatchat/config/app_config.dart';

/// State event type that marks the room category (canal/mural) on a room
/// level. Unlike the personal tags (per-account data), this marker is shared
/// by all room members which makes the categorization consistent across
/// different accounts.
const String roomTypeStateEvent = 'tatuchat.room_type';

/// Leaves the room and removes it from the local database so that it does not
/// reappear on the next sync or app restart.
Future<void> safeLeave(Room room) async {
  try {
    await room.leave();
  } on MatrixException catch (e, s) {
    // If the room was already left on the server (e.g. a stale local copy
    // reappeared after a restart) the leave request fails, but the user
    // intent (room not being listed anymore) is already fulfilled. Clean up
    // locally instead of showing an error.
    if (!{
      MatrixError.M_FORBIDDEN,
      MatrixError.M_NOT_FOUND,
      MatrixError.M_UNKNOWN,
    }.contains(e.error)) {
      Logs().w('Failed to leave room ${room.id}', e, s);
      rethrow;
    }
    Logs().w('Room ${room.id} is already gone, cleaning up locally...', e, s);
  }
  final client = room.client;
  await client.database.forgetRoom(room.id);
  client.rooms.remove(room);
}

extension RoomTypeExtension on Room {
  String? get roomType =>
      getState(roomTypeStateEvent)?.content.tryGet<String>('type');

  bool get isCanal =>
      tags.keys.contains(AppConfig.canalTag) || roomType == 'canal';

  bool get isMural =>
      tags.keys.contains(AppConfig.muralTag) || roomType == 'mural';

  /// Whether the account left (or was banned from) this room. Such rooms must
  /// not be shown in the chat list, even if a stale local copy with an old
  /// "join" membership reappears after a restart.
  bool get isLeftOrBanned =>
      {Membership.leave, Membership.ban}.contains(membership);

  Future<String> setRoomType(String type) =>
      client.setRoomStateWithKey(id, roomTypeStateEvent, '', {'type': type});
}