import 'package:flutter/cupertino.dart';

import 'backend/teamService.dart';
import 'backend/userService.dart';

class TeamUserSyncService with ChangeNotifier {
  static final TeamUserSyncService _instance = TeamUserSyncService._internal();
  factory TeamUserSyncService() => _instance;
  TeamUserSyncService._internal();

  final UserService _userService = UserService();
  final TeamService _teamService = TeamService();

  Future<bool> handleUserKicked(String email) async {
    final teamId = await _userService.getUserTeamByEmail(email);
    if (teamId == null) return false;

    final userTeamReset = await _userService.userResetTeamByEmail(email);
    final teamUpdated = await _teamService.removeUserFromTeam(email, teamId);

    notifyListeners();
    return userTeamReset && teamUpdated;
  }

  Future<bool> handleTeamRemoved(int teamId) async {
    final team = await _teamService.getTeamById(teamId);
    if (team == null || team.userEmails.isEmpty) return false;

    for (String email in team.userEmails) {
      final userTeamReset = await _userService.userResetTeamByEmail(email);

      if (!userTeamReset) return false;
    }

    final teamRemoved = await _teamService.removeTeam(teamId);
    notifyListeners();
    return teamRemoved;
  }

  Future<bool> handleUserJoined(int teamId) async {
    final userUpdated = await _userService.addTeamToUser(teamId);
    final teamUpdated = await _teamService.addUserToTeam(teamId);

    notifyListeners();
    return userUpdated && teamUpdated;
  }
}