import 'package:get/get.dart';
import 'package:get/get_rx/src/rx_types/rx_types.dart';
import 'package:injectable/injectable.dart';
import 'package:location/base/base_controller.dart';
import 'package:location/data/bean/location_info.dart';
import 'package:location/data/bean/user_info.dart';
import 'package:location/data/repositories/account_repository.dart';
import 'package:location/data/repositories/friends_repository.dart';
import 'package:flutter_map/flutter_map.dart';
import '../../dialog/add_friend_dialog.dart';
import '../../dialog/check_loation_permission_dialog.dart';
import '../../dialog/location_permission_dialog.dart';
import '../../utils/location_permission_util.dart';
import '../add_friend/add_friend_page.dart';
import '../mine/mine_page.dart';

@injectable
class MainController extends BaseController {
  final FriendsRepository friendsRepository;
  final AccountRepository accountRepository;

  RxList<UserInfo> get friendsList => friendsRepository.friendsList;

  UserInfo get mineLocation => accountRepository.locationUserInfo.value;

  MainController(this.friendsRepository, this.accountRepository);

  final Rxn<UserInfo> _selectedFriend = Rxn<UserInfo>();

  UserInfo? get selectedFriend => _selectedFriend.value;

  final MapController mapController = MapController();

  @override
  void onReady() {
    super.onReady();
    friendsList.listen((list) {
      mapController.addMarkers(_convertToMarker(list));
    });
    AddFriendDialog.show(
        onAddClick: () async {
          await onAddFriendClick();
          checkLocationPermissionCallback();
        },
        onNotAddDismiss: checkLocationPermissionCallback);
  }

  Future<void> onAddFriendClick() {
    return AddFriendPage.show();
  }

  void onMineClick() {
    MinePage.start();
  }

  void checkLocationPermissionCallback() async {
    bool isGranted = await LocationPermissionUtil.checkLocationPermission();
    if (!isGranted) {
      CheckLocationPermissionDialog.show(
          onRequestPermissionClick: _requestLocationPermission);
    }
  }

  void onSelectClick(UserInfo mineLocation) {
    UserInfo? oldInfo = _selectedFriend.value;
    _selectedFriend.value = mineLocation;
    //修改地图选中
    _updateMapSelected(oldInfo, mineLocation);
    //移动到选中的位置
    animateCamera(mineLocation);
  }

  void _updateMapSelected(UserInfo? oldInfo, UserInfo newInfo) {
    List<UserInfo> markers = [];
    if (oldInfo != null) {
      markers.add(oldInfo);
    }
    markers.add(newInfo);
    mapController.updateMarkers(_convertToMarker(markers));
  }

  void animateCamera(UserInfo userInfo) {
    LocationInfo? locationInfo = userInfo.lastLocation;
    if (locationInfo == null ||
        locationInfo.longitude == 0 ||
        locationInfo.latitude == 0) {
      return;
    }
    mapController.animateCamera(CameraPosition(
        longitude: locationInfo.longitude,
        latitude: locationInfo.latitude,
        zoom: 18));
  }

  List<Marker> _convertToMarker(List<UserInfo> list) {
    return list
        .map((e) => Marker(
              id: e.id,
              markerName: e.remark ?? e.phoneNumber,
              longitude: e.lastLocation?.longitude,
              latitude: e.lastLocation?.latitude,
              markerType: MarkerType.friend,
              isSelected: e == _selectedFriend.value,
            ))
        .toList();
  }

  void onMarkerTap(Marker marker) {
    String id = marker.id;
    UserInfo? userInfo =
        friendsList.firstWhereOrNull((element) => element.id == id);
    if (userInfo == null) {
      return;
    }
    onSelectClick(userInfo);
  }

  void onCurrentLocationClick() async {
    //权限检查
    bool isGranted = await LocationPermissionUtil.checkLocationPermission();
    if (!isGranted) {
      LocationPermissionDialog.show(onNextStep: _requestLocationPermission);
    } else {
      _updateCurrentLocation();
    }
  }

  void _requestLocationPermission() async {
    bool isGranted = await LocationPermissionUtil.requestLocationPermission();
    _showLocationAlways();
    if (isGranted) {
      _updateCurrentLocation();
    }
  }

  void _showLocationAlways() async {
    bool isGranted = await LocationPermissionUtil.checkShowLocationAlways();
    if (!isGranted) {
      LocationAlwaysPermissionDialog.show(onNextStep: () async {
        isGranted = await LocationPermissionUtil.requestShowLocationAlways();
        if (isGranted) {
          _updateCurrentLocation();
        }
      });
    }
  }

  void _updateCurrentLocation() {}
}