import 'dart:io';

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

class PermissionSettingPage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _PermissionSettingPage();
  }
}

class _PermissionSettingPage extends State<PermissionSettingPage> {
  @override
  void initState() {
    super.initState();

    queryPermission();
  }

  List<String> title = [
    S.current.dingwei,
    S.current.tongzhi,
    S.current.xiangji,
    S.current.cunchu,
  ];
  List<String> icons = [
    "assets/image/icon_permission_location.png",
    "assets/image/icon_permission_notices.png",
    "assets/image/icon_permission_camera.png",
    "assets/image/icon_permission_storage.png",
  ];
  List<String> contents = [
    S.current.weizhitishixinxi,
    S.current.tongzhitishixinxi,
    S.current.xiangjitishixinxi,
    S.current.cunchutishixinxi,
  ];

  Map<Permission, bool> permissionSwitch = {};

  List<Permission> permissions = [
    Permission.location,
    Permission.notification,
    Permission.camera,
    Permission.storage,
  ];

  queryPermission() async {
    await permissions.forEach((element) async {
      if (await element.isGranted) {
        permissionSwitch[element] = true;
      }
    });
    setState(() {});
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(
          S.of(context).quanxianshezhi,
          style: TextStyle(
            color: Colors.black,
            fontWeight: FontWeight.bold,
          ),
        ),
        centerTitle: false,
        backgroundColor: Color(0xFFF7F7F7),
        elevation: 0,
        leading: GestureDetector(
          onTap: () {
            Navigator.of(context).pop();
          },
          child: Container(
            alignment: Alignment.centerRight,
            margin: EdgeInsets.only(left: 10.w),
            padding: EdgeInsets.all(6),
            child: Icon(
              Icons.arrow_back_ios,
              color: Colors.black,
              size: 24,
            ),
          ),
        ),
        titleSpacing: 2.w,
        leadingWidth: 56.w,
      ),
      body: Container(
        child: ListView.builder(
            itemCount: permissions.length,
            itemBuilder: (context, position) {
              return InkWell(
                onTap: () {
                  openPermission(permissions[position]);
                },
                child: buildPermissionItem(title[position], icons[position],
                    contents[position], permissions[position]),
              );
            }),
      ),
    );
  }

  openPermission(Permission permission) async {
    if ((permissionSwitch.containsKey(permission) &&
        permissionSwitch[permission])) {
      openAppSettings();
      return;
    }
    if(await permission.isPermanentlyDenied) {
      requestDialog();
    } else if (await permission.isUndetermined) {
      await permission.request();
      queryPermission();
    } else {
      if (Platform.isIOS) {
        //去设置中心
        requestDialog();
      } else {
        if (permission == Permission.notification) {
          requestDialog();
        } else {
          await permission.request();
          queryPermission();
        }
      }
    }
  }

  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();
                queryPermission();
              }
            },
            heightRatioWithWidth: 0.82,
          );
        });
  }

  Widget buildPermissionItem(
      title, icon, content, Permission permission) {
    return Container(
      margin: EdgeInsets.fromLTRB(16.w, 8.h, 16.w, 8.h),
      padding: EdgeInsets.fromLTRB(20.w, 16.h, 20.w, 16.h),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(8),
        boxShadow: [
          BoxShadow(
            color: Colors.black.withAlpha(12),
            offset: Offset(0, 3),
            blurRadius: 14,
            spreadRadius: 0,
          )
        ],
      ),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.center,
        crossAxisAlignment: CrossAxisAlignment.center,
        children: [
          Expanded(
            child: Column(
              children: [
                Row(
                  children: [
                    Text(
                      title,
                      style: TextStyle(
                          color: Colors.black,
                          fontSize: 16.sp,
                          fontWeight: FontWeight.bold),
                    ),
                    SizedBox(
                      width: 8,
                    ),
                    Image.asset(
                      icon,
                      width: 22.w,
                      height: 22.h,
                    )
                  ],
                ),
                SizedBox(
                  height: 8.h,
                ),
                Text(
                  content,
                  overflow: TextOverflow.ellipsis,
                  maxLines: 2,
                  style: TextStyle(
                    color: Color(0xFF353535),
                    fontSize: 12.sp,
                  ),
                ),
              ],
            ),
          ),
          SizedBox(
            width: 32.w,
          ),
          CupertinoSwitch(
            value: (permissionSwitch.containsKey(permission) &&
                permissionSwitch[permission]),
            onChanged: (boo){},
          ),
        ],
      ),
    );
  }
}