import 'package:flutter/material.dart';
import 'package:flutter_map/flutter_map.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import 'package:get/get_core/src/get_main.dart';
import 'package:injectable/injectable.dart';
import 'package:location/base/base_controller.dart';
import 'package:location/data/bean/track_days.dart';
import 'package:location/data/repositories/account_repository.dart';
import 'package:location/data/repositories/friends_repository.dart';
import 'package:location/data/repositories/track_repository.dart';
import 'package:location/handler/error_handler.dart';
import 'package:sliding_sheet2/sliding_sheet2.dart';
import '../../data/bean/user_info.dart';

@injectable
class TrackController extends BaseController
    with GetSingleTickerProviderStateMixin {
  final Rxn<UserInfo> _userInfo = Rxn<UserInfo>();

  UserInfo? get userInfo => _userInfo.value;

  final MapController mapController = MapController();

  SheetController sheetController = SheetController();

  final RxList<TrackDays> daysList = RxList<TrackDays>();

  final Rxn<TabController> _tabController = Rxn<TabController>();

  TabController? get tabController => _tabController.value;

  final Rxn<TrackDays> currentTrackDay = Rxn();

  final TrackRepository trackRepository;
  final FriendsRepository friendsRepository;
  final AccountRepository accountRepository;

  TrackController(
      this.trackRepository, this.friendsRepository, this.accountRepository);

  @override
  void onInit() {
    final param = Get.arguments;
    if (param is UserInfo) {
      _userInfo.value = param;
    }
    _onRequestTrackDateList();
  }

  @override
  void onReady() {
    super.onReady();
    sheetController.expand();
    _recordNumberTrajectoryViewed();
  }

  void _onRequestTrackDateList() {
    trackRepository.getLocationTrackDays().then((list) {
      daysList.assignAll(list);
      _createTabController();
    }).catchError((error) {
      ErrorHandler.toastError(error);
    });
  }

  void _createTabController() {
    tabController?.dispose();
    final tab = TabController(
      length: daysList.length,
      vsync: this,
    );
    _tabController.value = tab;
    tab.addListener(() {
      if (tab.indexIsChanging == false) {
        //控制请求当前页数据或者数据已有时跟换数据
        mapController.clear();
        currentTrackDay.value = daysList[tab.index];
      }
    });
    Future.delayed(Duration(milliseconds: 100), () {
      currentTrackDay.value = daysList.isNotEmpty ? daysList[0] : null;
    });
  }

  ///记录查看轨迹的次数
  void _recordNumberTrajectoryViewed() {
    if (accountRepository.memberStatusInfo.value?.trialed == true &&
        accountRepository.memberStatusInfo.value?.level == 20) {
      trackRepository.refreshMemberTrailTrack();
    }
  }

  ///显示轨迹以及标记点
  void showMapTrack(List<LatLng> points, List<Marker> markers) {
    mapController.clear();
    //画折线
    if (points.length > 1) {
      mapController.addPolyline(points,
          mapPadding: MapPadding(
              left: 50.w, top: 100.w, right: 50.w, bottom: Get.height / 2));
    }
    //画标记点
    if (markers.isNotEmpty) {
      mapController.updateOrAddMarkers(markers);
    }
  }

  void back() {
    Get.back();
  }

  @override
  void onClose() {
    super.onClose();
    tabController?.dispose();
  }
}