import 'dart:io';

import 'package:android_intent_plus/android_intent.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bmflocation/flutter_bmflocation.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:huixiang/generated/l10n.dart';
import 'package:huixiang/view_widget/request_permission.dart';
import 'package:permission_handler/permission_handler.dart';

import 'font_weight.dart';

BaiduLocationAndroidOption initAndroidOptions() {
  BaiduLocationAndroidOption options = BaiduLocationAndroidOption(
      // 定位模式，可选的模式有高精度、仅设备、仅网络。默认为高精度模式
      locationMode: BMFLocationMode.hightAccuracy,
      // 是否需要返回地址信息
      isNeedAddress: true,
// 是否需要返回海拔高度信息
      isNeedAltitude: false,
// 是否需要返回周边poi信息
      isNeedLocationPoiList: false,
// 是否需要返回新版本rgc信息
      isNeedNewVersionRgc: false,
// 是否需要返回位置描述信息
      isNeedLocationDescribe: true,
// 是否使用gps
      openGps: true,
// 可选，设置场景定位参数，包括签到场景、运动场景、出行场景
      locationPurpose: BMFLocationPurpose.signIn,
// 坐标系
      coordType: BMFLocationCoordType.bd09ll,
// 设置发起定位请求的间隔，int类型，单位ms
// 如果设置为0，则代表单次定位，即仅定位一次，默认为0
      scanspan: 0);
  return options;
}

BaiduLocationIOSOption initIOSOptions() {
  BaiduLocationIOSOption options = BaiduLocationIOSOption(
    // 坐标系
    coordType: BMFLocationCoordType.bd09ll,
    // 位置获取超时时间
    locationTimeout: 10,
    // 获取地址信息超时时间
    reGeocodeTimeout: 10,
    // 应用位置类型 默认为automotiveNavigation
    activityType: BMFActivityType.automotiveNavigation,
    // 设置预期精度参数 默认为best
    desiredAccuracy: BMFDesiredAccuracy.best,
    // 是否需要最新版本rgc数据
    isNeedNewVersionRgc: false,
    // 指定定位是否会被系统自动暂停
    pausesLocationUpdatesAutomatically: false,
    // 指定是否允许后台定位,
    // 允许的话是可以进行后台定位的，但需要项目配置允许后台定位，否则会报错，具体参考开发文档
    allowsBackgroundLocationUpdates: false,
    // 设定定位的最小更新距离
    distanceFilter: 10,
  );
  return options;
}

class Location {
  static Location _instance;

  Location._internal() {
    aMapFlutterLocation = LocationFlutterPlugin();
  }

  static Location getInstance() {
    if (_instance == null) {
      _instance = Location._internal();
    }
    return _instance;
  }

  LocationFlutterPlugin aMapFlutterLocation;

  Future<bool> startLocation(
      context, Function(BaiduLocation result) locationCallback) async {
    aMapFlutterLocation.prepareLoc(
        initAndroidOptions().getMap(), initIOSOptions().getMap());
    var permissionStatus = await Permission.location.status;
    if (!permissionStatus.isGranted) {
      if (permissionStatus.isUndetermined)
        showTipsAlertDialog(context);
      return false;
    } else {
      aMapFlutterLocation.singleLocationCallback(
          callback: (BaiduLocation result) {
        locationCallback.call(result);
      });
      if (Platform.isIOS) {
        await aMapFlutterLocation.singleLocation({
          'isReGeocode': true,
          'isNetworkState': true,
        });
      } else if (Platform.isAndroid) {
        await aMapFlutterLocation.startLocation();
      }
      return true;
    }
  }

  void stopLocation() {
    if (aMapFlutterLocation != null) aMapFlutterLocation.stopLocation();
  }

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

  ///定位权限说明弹窗
  showTipsAlertDialog(context) async {
    //显示对话框
    showDialog(
      context: context,
      barrierDismissible: false,
      barrierColor: null,
      builder: (BuildContext context) {
        return Column(
          children: [
            Container(
              width: double.infinity,
              padding: EdgeInsets.all(15),
              margin: EdgeInsets.all(15),
              decoration: new BoxDecoration(
                color: Colors.white,
                borderRadius: BorderRadius.circular(10),
              ),
              child: Row(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Icon(
                    Icons.location_on_outlined,
                    color: Colors.black,
                    size: 22,
                  ),
                  Expanded(
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        Text(
                          // "访问精确地理位置信息权限说明",
                          "位置权限使用说明",
                          style: TextStyle(
                            fontSize: 18.sp,
                            fontWeight: MyFontWeight.regular,
                            color: Colors.black,
                          ),
                        ),
                        SizedBox(
                          height: 3.h,
                        ),
                        Text(
                          // "为了向您推荐附近的门店信息，推荐您在使用期间让我们使用位置信息，不授权该权限不影响app正常使用。",
                          "为了向您推荐附近的门店信息，推荐您在使用期间让我们使用位置信息",
                          style: TextStyle(
                            fontSize: 13.sp,
                            fontWeight: MyFontWeight.regular,
                            color: Colors.black,
                          ),
                        ),
                      ],
                    ),
                  ),
                ],
              ),
            )
          ],
          mainAxisSize: MainAxisSize.min,
        );
      },
    );
    await Permission.location.request();
    Navigator.of(context).pop();
  }

  ///定位权限说明和申请弹窗
  showAlertDialog(context) {
    //显示对话框
    showDialog(
      context: context,
      barrierDismissible: true,
      barrierColor: null,
      builder: (BuildContext context) {
        return Column(
          children: [
            Container(
              width: double.infinity,
              padding: EdgeInsets.all(15),
              margin: EdgeInsets.all(15),
              decoration: new BoxDecoration(
                color: Colors.black.withOpacity(0.6),
                borderRadius: BorderRadius.circular(10),
              ),
              child: Row(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Expanded(
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        Text(
                          // "访问精确地理位置信息权限说明",
                          "定位服务未开启",
                          style: TextStyle(
                            fontSize: 18.sp,
                            fontWeight: MyFontWeight.regular,
                            color: Colors.white,
                          ),
                        ),
                        SizedBox(
                          height: 3.h,
                        ),
                        Text(
                          // "为了向您推荐附近的门店信息，推荐您在使用期间让我们使用位置信息，不授权该权限不影响app正常使用。",
                          "开启后才能提供更详细的定位服务哦！",
                          style: TextStyle(
                            fontSize: 13.sp,
                            fontWeight: MyFontWeight.regular,
                            color: Colors.white,
                          ),
                        ),
                      ],
                    ),
                  ),
                  GestureDetector(
                    child: Container(
                      child: Text(
                        "去开启",
                        style: TextStyle(
                          fontSize: 15.sp,
                          fontWeight: MyFontWeight.regular,
                          color: Colors.white,
                        ),
                      ),
                      margin: EdgeInsets.symmetric(
                          horizontal: 15.w, vertical: 25.h),
                      padding:
                          EdgeInsets.symmetric(vertical: 2.h, horizontal: 10.w),
                      decoration: BoxDecoration(
                        color: Colors.green,
                        borderRadius: BorderRadius.circular(100),
                      ),
                    ),
                    onTap: () async {
                      await openAppSettings();
                      if (await Permission.location.isGranted)
                        Navigator.of(context).pop();
                    },
                    behavior: HitTestBehavior.opaque,
                  ),
                  GestureDetector(
                    behavior: HitTestBehavior.opaque,
                    child: Container(
                      child: Icon(
                        Icons.close,
                        color: Colors.white.withOpacity(0.8),
                        size: 12,
                      ),
                      decoration: BoxDecoration(
                        color: Colors.black.withOpacity(0.8),
                        borderRadius: BorderRadius.circular(100),
                      ),
                      padding: EdgeInsets.all(5),
                    ),
                    onTap: () {
                      Navigator.of(context).pop();
                    },
                  )
                ],
              ),
            )
          ],
          mainAxisSize: MainAxisSize.min,
        );
      },
    );
  }
}