import 'dart:io';

import 'package:flutter/material.dart';
import 'package:Parlando/routers/fluro_navigator.dart';
import 'package:Parlando/util/toast_utils.dart';
import 'package:Parlando/widgets/my_button.dart';
import 'package:Parlando/widgets/search_bar.dart';
import 'package:flutter_baidu_mapapi_base/flutter_baidu_mapapi_base.dart';
import 'package:flutter_baidu_mapapi_map/flutter_baidu_mapapi_map.dart';
import 'package:flutter_bmflocation/flutter_bmflocation.dart';
import '../../map/interface/amap_2d_controller.dart';
import '../../map/poi_search_model.dart';

class AddressSelectPage extends StatefulWidget {
  const AddressSelectPage({Key? key}) : super(key: key);

  @override
  AddressSelectPageState createState() => AddressSelectPageState();
}

class AddressSelectPageState extends State<AddressSelectPage> {
  List<PoiSearch> _list = [];
  int _index = 0;
  final ScrollController _controller = ScrollController();
  AMap2DController? _aMap2DController;
  late BMFMapController _myMapController;
  BaiduLocation _loationResult = BaiduLocation();
  LocationFlutterPlugin myLocPlugin = LocationFlutterPlugin();

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  @override
  void initState() {
    super.initState();
    myLocPlugin.setAgreePrivacy(true);
    // 百度地图sdk初始化鉴权
    if (Platform.isIOS) {
      myLocPlugin.authAK('rMsgMvYERM9zHDDdaipk34oBx7yoaGQh');
      BMFMapSDK.setApiKeyAndCoordType(
          'rMsgMvYERM9zHDDdaipk34oBx7yoaGQh', BMF_COORD_TYPE.BD09LL);

      ///接受定位回调
      myLocPlugin.singleLocationCallback(callback: (BaiduLocation result) {
        setState(() {
          _loationResult = result;
          locationFinish();
        });
      });
    } else if (Platform.isAndroid) {
      // Android 目前不支持接口设置Apikey,
      // 请在主工程的Manifest文件里设置，详细配置方法请参考官网(https://lbsyun.baidu.com/)demo
      BMFMapSDK.setCoordType(BMF_COORD_TYPE.BD09LL);
      myLocPlugin.seriesLocationCallback(callback: (BaiduLocation result) {
        setState(() {
          _loationResult = result;

          locationFinish();
          myLocPlugin.stopLocation();
        });
      });
    }

    ///设置定位参数
    _locationAction();
    _startLocation();
  }

  void _locationAction() async {
    Map iosMap = initIOSOptions().getMap();
    Map androidMap = initAndroidOptions().getMap();

    await myLocPlugin.prepareLoc(androidMap, iosMap);
  }

  ///定位完成添加mark
  void locationFinish() {
    /// 创建BMFMarker
    BMFMarker marker = BMFMarker.icon(
        position: BMFCoordinate(
            _loationResult.latitude ?? 0.0, _loationResult.longitude ?? 0.0),
        title: 'flutterMaker',
        identifier: 'flutter_marker',
        icon: 'assets/images/map/icon_mark.png');
    print(_loationResult.latitude.toString() +
        _loationResult.longitude.toString());

    /// 添加Marker
    _myMapController.addMarker(marker);

    ///设置中心点
    _myMapController.setCenterCoordinate(
        BMFCoordinate(
            _loationResult.latitude ?? 0.0, _loationResult.longitude ?? 0.0),
        false);
  }

  /// 设置地图参数
  BaiduLocationAndroidOption initAndroidOptions() {
    BaiduLocationAndroidOption options = BaiduLocationAndroidOption(
        coorType: 'bd09ll',
        locationMode: BMFLocationMode.hightAccuracy,
        isNeedAddress: true,
        isNeedAltitude: true,
        isNeedLocationPoiList: true,
        isNeedNewVersionRgc: true,
        isNeedLocationDescribe: true,
        openGps: true,
        locationPurpose: BMFLocationPurpose.sport,
        coordType: BMFLocationCoordType.bd09ll);
    return options;
  }

  BaiduLocationIOSOption initIOSOptions() {
    BaiduLocationIOSOption options = BaiduLocationIOSOption(
        coordType: BMFLocationCoordType.bd09ll,
        BMKLocationCoordinateType: 'BMKLocationCoordinateTypeBMK09LL',
        desiredAccuracy: BMFDesiredAccuracy.best);
    return options;
  }

  /// 启动定位
  Future<void> _startLocation() async {
    if (Platform.isIOS) {
      await myLocPlugin
          .singleLocation({'isReGeocode': true, 'isNetworkState': true});
    } else if (Platform.isAndroid) {
      await myLocPlugin.startLocation();
    }
  }

  /// 创建完成回调
  void onBMFMapCreated(BMFMapController controller) {
    _myMapController = controller;

    /// 地图加载回调
    _myMapController.setMapDidLoadCallback(callback: () {});
  }

  /// 设置地图参数
  BMFMapOptions initMapOptions() {
    BMFMapOptions mapOptions = BMFMapOptions(
      center: BMFCoordinate(39.917215, 116.380341),
      zoomLevel: 18,
    );
    return mapOptions;
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      resizeToAvoidBottomInset: false,
      appBar: SearchBar(
        hintText: '搜索地址',
        onPressed: (text) {
          _controller.animateTo(0.0,
              duration: const Duration(milliseconds: 10), curve: Curves.ease);
          _index = 0;
          _aMap2DController?.search(text);
        },
      ),
      body: SafeArea(
        child: Column(
          children: <Widget>[
            Expanded(
              flex: 9,
              child: BMFMapWidget(
                onBMFMapCreated: (BMFMapController controller) {
                  onBMFMapCreated(controller);
                },
                mapOptions: initMapOptions(),
              ),
            ),
            Expanded(
              flex: 11,
              child: ListView.separated(
                controller: _controller,
                itemCount: _list.length,
                separatorBuilder: (_, index) => const Divider(),
                itemBuilder: (_, index) {
                  return _AddressItem(
                    isSelected: _index == index,
                    date: _list[index],
                    onTap: () {
                      _index = index;
                      _aMap2DController?.move(
                          _list[index].latitude!, _list[index].longitude!);
                      setState(() {});
                    },
                  );
                },
              ),
            ),
            MyButton(
              onPressed: () {
                if (_list.isEmpty) {
                  Toast.show('未选择地址！');
                  return;
                }
                NavigatorUtils.goBackWithParams(context, _list[_index]);
              },
              text: '确认选择地址',
            )
          ],
        ),
      ),
    );
  }
}

class _AddressItem extends StatelessWidget {
  const _AddressItem({
    Key? key,
    required this.date,
    this.isSelected = false,
    this.onTap,
  }) : super(key: key);

  final PoiSearch date;
  final bool isSelected;
  final GestureTapCallback? onTap;

  @override
  Widget build(BuildContext context) {
    return InkWell(
      onTap: onTap,
      child: Container(
        alignment: Alignment.centerLeft,
        padding: const EdgeInsets.symmetric(horizontal: 16.0),
        height: 50.0,
        child: Row(
          children: <Widget>[
            Expanded(
              child: Text(
                '${date.provinceName!} ${date.cityName!} ${date.adName!} ${date.title!}',
              ),
            ),
            Visibility(
              visible: isSelected,
              child: const Icon(Icons.done, color: Colors.blue),
            )
          ],
        ),
      ),
    );
  }
}