import 'dart:convert';
import 'dart:io';

import 'package:android_intent_plus/android_intent.dart';
import 'package:dio/dio.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.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/bdmap_location_flutter_plugin.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:huixiang/generated/l10n.dart';
import 'package:huixiang/retrofit/data/address.dart';
import 'package:huixiang/retrofit/retrofit_api.dart';
import 'package:huixiang/view_widget/request_permission.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';

class AddressMapPage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _AddressMapPage();
  }
}

class _AddressMapPage extends State<AddressMapPage> {

  //加载自定义地图样式
  void _loadCustomData() async {
    setState(() {
      _mapController.setCustomMapStyle('assets/map_style/chatian.sty', 0);
    });
  }

  LocationFlutterPlugin aMapFlutterLocation;
  String city = "武汉市";
  String keyWord = "";

  @override
  void dispose() {
    super.dispose();
    aMapFlutterLocation.stopLocation();
  }

  ApiService apiService;

  @override
  void initState() {
    super.initState();

    SharedPreferences.getInstance().then((value) => {
          apiService = ApiService(Dio(),
              context: context, token: value.getString('token')),
        });

    if (aMapFlutterLocation == null) {

      aMapFlutterLocation = LocationFlutterPlugin();
      aMapFlutterLocation.onResultCallback().listen((event) {
        print("event: ${jsonEncode(event)}");
        if (event != null &&
            event["latitude"] != null &&
            event["longitude"] != null) {
          city = event["city"];
          BMFCoordinate latLng;
          if (event["latitude"] is String && event["longitude"] is String) {
            latLng = BMFCoordinate(double.tryParse(event["latitude"]),
                double.tryParse(event["longitude"]));
          } else {
            latLng = BMFCoordinate(event["latitude"], event["longitude"]);
          }
          saveLatLng(latLng);
          if (_mapController != null)
            _mapController.updateMapOptions(
              BMFMapOptions(
                center: latLng,
                zoomLevel: 15,
              ),
            );
          searchPoi(latLng);
        }
      });
    }

    aMapFlutterLocation.prepareLoc({
      "coorType": "bd09ll",
      "isNeedAddres": false,
      "isNeedAltitude": false,
      "isNeedLocationPoiList": false,
      "isNeedLocationDescribe": false,
      "isNeedNewVersionRgc": false,
      "scanspan": 0,
      "openGps": true,
      "locationMode": 2,
    }, {
      "locationMode": "kCLLocationAccuracyBest",
      "locationTimeout": 10,
      "reGeocodeTimeout": 10,
      "activityType": "CLActivityTypeAutomotiveNavigation",
      "BMKLocationCoordinateType": "BMKLocationCoordinateTypeBMK09LL",
      "BMKLocationCoordinateType": "BMKLocationCoordinateTypeBMK09LL",
      "isNeedNewVersionRgc": false,
    });

    _loadCustomData();

    getLatLng();
    startLocation();
  }

  List<Address> poiList;

  searchPoi(BMFCoordinate latLng) async {
    keyWord = textEditingController.text;
    var addressPoi = await apiService.searchPoi(
        "${latLng.latitude}", "${latLng.longitude}", keyWord, 20, 1);
    List<dynamic> poi = addressPoi['pois'];
    poiList = poi
        .map((e) => Address.fromJson({
              "address": e["address"] is List ? "" : e["address"],
              "area": e["adname"],
              "city": e["cityname"],
              "province": e["pname"],
              "latitude": e["location"].toString().split(",")[0],
              "longitude": e["location"].toString().split(",")[1],
              "cityInfo": e["name"],
              "id": "",
              "mid": "",
              "phone": "",
              "tag": "",
              "username": "",
              "isDefault": true,
            }))
        .toList();
    setState(() {});
  }

  startLocation() async {
    if (!(await Permission.locationWhenInUse.serviceStatus.isEnabled)) {
      enableLocation();
      return;
    }

    if (await Permission.location.isPermanentlyDenied) {
      requestDialog();
    } else if (await Permission.location.isGranted) {
      SmartDialog.showLoading(msg: S.of(context).zhengzaijiazai);
      aMapFlutterLocation.startLocation();
      Future.delayed(Duration(seconds: 6), () {
        SmartDialog.dismiss();
      });
    } else if (await Permission.location.isUndetermined) {
      await Permission.location.request();
    } else {
      if (Platform.isIOS) {
        //去设置中心
        requestDialog();
      } else {
        await Permission.location.request();
      }
    }
  }

  enableLocation() {
    showCupertinoDialog(
      context: context,
      builder: (context) {
        return RequestPermission(
          "assets/image/icon_permission_location_bg.png",
          S.of(context).nindingweigongnengweikaiqi,
          S.of(context).weilexiangnintuijianfujindemendianxinxi,
          S.of(context).dakaidingwei,
              (result) async {
            if (result) {
              final AndroidIntent intent = AndroidIntent(
                  action: 'action_location_source_settings',
                  package: "com.zsw.huixiang");
              await intent.launch();
              // startLocation();
            }
          },
          heightRatioWithWidth: 0.82,
        );
      },
    );
  }

  requestDialog() {
    showCupertinoDialog(
        context: context,
        builder: (context) {
          return RequestPermission(
            "assets/image/icon_permission_location_bg.png",
            S.of(context).nindingweiquanxianweiyunxu,
            S.of(context).weilexiangnintuijianfujindemendianxinxi,
            S.of(context).kaiqiquanxian,
                (result) async {
              if (result) {
                await openAppSettings();
                if (await Permission.location.isGranted) {
                  startLocation();
                }
              }
            },
            heightRatioWithWidth: 0.82,
          );
        });
  }

  BMFMapController _mapController;

  void onMapCreated(BMFMapController controller) {
    setState(() {
      _mapController = controller;
    });
  }

  saveLatLng(BMFCoordinate latLng) async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setString("latitude", "${latLng.latitude}");
    await prefs.setString("longitude", "${latLng.longitude}");
  }

  getLatLng() async {
    SharedPreferences.getInstance().then((value) => {
          setState(() {
            if (_mapController != null) {
              _mapController.updateMapOptions(
                BMFMapOptions(
                  center: BMFCoordinate(
                      double.tryParse(value.getString("latitude")),
                      double.tryParse(value.getString("longitude"))),
                  zoomLevel: 15,
                ),
              );
            }
          })
        });
  }

  BMFMapWidget map;
  BMFCoordinate center = BMFCoordinate(30.553111, 114.342366);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Column(
        children: [
          Expanded(
            child: Stack(
              children: [
                Container(
                  child: BMFMapWidget(
                    mapOptions: BMFMapOptions(
                      center: BMFCoordinate(30.553111, 114.342366),
                      zoomLevel: 12,
                    ),
                    onBMFMapCreated: onMapCreated,
                    // onCameraMoveEnd: (cameraPosition) {
                    //   center = cameraPosition.target;
                    //   searchPoi(center);
                    // },
                    // onCameraMove: (cameraPosition) {
                    //   center = cameraPosition.target;
                    //   setState(() {});
                    // },
                    // markers: [Marker(position: center)].toSet(),
                    // touchPoiEnabled: true,
                    // scrollGesturesEnabled: true,
                    // customStyleOptions: _customStyleOptions,
                    // gestureRecognizers: <Factory<OneSequenceGestureRecognizer>>[
                    //   Factory<OneSequenceGestureRecognizer>(
                    //       () => EagerGestureRecognizer())
                    // ].toSet(),
                  ),
                ),
                Center(
                  child: IgnorePointer(
                    child: Container(
                      margin: EdgeInsets.only(bottom: 44.h),
                      child: Image.asset(
                        "assets/image/icon_address_location.png",
                        width: 66.w,
                        height: 75.h,
                      ),
                    ),
                  ),
                ),
                searchWidget(),
                Positioned(
                  right: 17,
                  bottom: 16,
                  child: InkWell(
                    onTap: () {
                      startLocation();
                    },
                    child: Container(
                      width: 32.w,
                      height: 32.h,
                      padding: EdgeInsets.all(8),
                      decoration: BoxDecoration(
                        borderRadius: BorderRadius.circular(16),
                        color: Colors.white,
                      ),
                      child: Image.asset(
                        "assets/image/icon_address_location_action.png",
                        width: 16.w,
                        height: 16.h,
                      ),
                    ),
                  ),
                )
              ],
            ),
            flex: 1,
          ),
          Expanded(
            child: Container(
              child: ListView.separated(
                padding: EdgeInsets.symmetric(vertical: 0),
                itemCount: poiList != null ? poiList.length : 0,
                itemBuilder: (context, position) {
                  return InkWell(
                    onTap: () {
                      Navigator.of(context).pop(poiList[position].toJson());
                    },
                    child: addressItem(poiList[position]),
                  );
                },
                separatorBuilder: (contetx, position) {
                  return Container(
                    height: 1,
                    margin: EdgeInsets.symmetric(horizontal: 16.w),
                    color: Color(0xFFF1F1F1),
                  );
                },
              ),
            ),
            flex: 1,
          )
        ],
      ),
    );
  }

  Widget addressItem(Address address) {
    return Container(
      margin: EdgeInsets.symmetric(vertical: 16.h, horizontal: 16.w),
      child: Column(
        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            address.cityInfo ?? "",
            overflow: TextOverflow.ellipsis,
            style: TextStyle(
              fontSize: 16.sp,
              fontWeight: FontWeight.bold,
              color: Colors.black,
            ),
          ),
          SizedBox(
            height: 4.h,
          ),
          Text(
            "${address.province}${address.city}${address.area}${address.address}",
            overflow: TextOverflow.ellipsis,
            style: TextStyle(
              color: Color(0xFF4C4C4C),
              fontSize: 14.sp,
            ),
          )
        ],
      ),
    );
  }

  TextEditingController textEditingController = TextEditingController();

  Widget searchWidget() {
    return Container(
      height: 36.h,
      margin: EdgeInsets.fromLTRB(16, 48, 16, 8),
      padding: EdgeInsets.fromLTRB(10, 6, 16, 6),
      decoration: BoxDecoration(
          color: Colors.white,
          borderRadius: BorderRadius.all(Radius.circular(4)),
          boxShadow: [
            BoxShadow(
              color: Colors.black.withAlpha(12),
              offset: Offset(0, 3),
              blurRadius: 14,
              spreadRadius: 0,
            )
          ]),
      child: Row(
        mainAxisSize: MainAxisSize.max,
        children: [
          Icon(
            Icons.search,
            size: 24,
            color: Colors.black,
          ),
          Expanded(
            child: TextField(
              controller: textEditingController,
              textInputAction: TextInputAction.search,
              onEditingComplete: () {
                FocusScope.of(context).requestFocus(FocusNode());
                searchPoi(center);
              },
              decoration: InputDecoration(border: InputBorder.none),
            ),
          ),
          InkWell(
            onTap: () {
              textEditingController.clear();
            },
            child: Icon(
              Icons.close,
              size: 19,
              color: Colors.grey,
            ),
          ),
        ],
      ),
    );
  }
}