import 'dart:async';
import 'dart:math';

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import 'package:injectable/injectable.dart';
import 'package:location/base/base_controller.dart';
import 'package:location/data/bean/goods_bean.dart';
import 'package:location/data/bean/pay_item_bean.dart';
import 'package:location/data/repositories/account_repository.dart';
import 'package:location/data/repositories/member_repository.dart';
import 'package:location/handler/error_handler.dart';
import 'package:location/module/login/login_page.dart';
import 'package:location/resource/assets.gen.dart';
import 'package:location/utils/async_util.dart';
import 'package:location/utils/common_expand.dart';
import '../../data/bean/member_status_info.dart';
import '../../data/consts/web_url.dart';
import '../../resource/string.gen.dart';
import '../../widget/animated_switcher_widget.dart';
import '../browser/browser_view.dart';
import 'member_evaluate_bean.dart';
import 'member_fun_bean.dart';

@injectable
class MemberController extends BaseController {
  final AccountRepository accountRepository;
  final MemberRepository memberRepository;

  final switcherController = SwitcherController();

  final ScrollController scrollController = ScrollController();

  StreamController? _changeStreamController;
  final random = Random();

  final RxDouble _toolBarOpacity = 0.0.obs;

  double get toolBarOpacity => _toolBarOpacity.value;

  final List<String> _storeTypes = ['终身会员', '年度会员', '月度会员'];

  String? get phone => accountRepository.loginPhoneNum.value;

  bool get isLogin => accountRepository.isLogin.value;

  MemberStatusInfo? get memberStatusInfo =>
      accountRepository.memberStatusInfo.value;

  final RxList<GoodsBean> goodsList = <GoodsBean>[].obs;

  final Rxn<GoodsBean> _selectedGoods = Rxn<GoodsBean>();

  GoodsBean? get selectedGoods => _selectedGoods.value;

  final RxList<PayItemBean> payItemList = <PayItemBean>[].obs;

  CancelableFuture? _memberDataFuture;

  final List<MemberFunBean> funList = [
    MemberFunBean(1, Assets.images.iconMemberFun1.path,
        StringName.memberFunName1, StringName.memberFunName1Desc),
    MemberFunBean(2, Assets.images.iconMemberFun2.path,
        StringName.memberFunName2, StringName.memberFunName2Desc),
    MemberFunBean(3, Assets.images.iconMemberFun3.path,
        StringName.memberFunName3, StringName.memberFunName3Desc),
    // MemberFunBean(4, Assets.images.iconMemberFun4.path, StringName.memberFunName4, StringName.memberFunName4Desc), //该功能还未开发
    MemberFunBean(5, Assets.images.iconMemberFun5.path,
        StringName.memberFunName5, StringName.memberFunName5Desc),
    MemberFunBean(6, Assets.images.iconMemberFun6.path,
        StringName.memberFunName6, StringName.memberFunName6Desc),
  ];

  final List<MemberEvaluateBean> evaluateList = [
    MemberEvaluateBean(1, Assets.images.iconEvaluate1.path, '用户189****7913',
        "上班没时间，远程遛娃，非常方便很好用。"),
    MemberEvaluateBean(2, Assets.images.iconEvaluate2.path, '用户177****2345',
        "这个功能太棒了！尤其是夜间出行时，一键报警让我感觉特别安心。"),
    MemberEvaluateBean(3, Assets.images.iconEvaluate3.path, '用户138****6789',
        "强烈推荐！我和家人经常用这个功能来共享位置，尤其是旅游时，走散了也不怕。"),
    MemberEvaluateBean(4, Assets.images.iconEvaluate4.path, '用户159****3456',
        "实时定位非常精准，用来监控孩子的行踪特别方便，再也不用担心他们乱跑了。"),
    MemberEvaluateBean(5, Assets.images.iconEvaluate5.path, '用户182****9012',
        "用来遛狗也很方便，再也不用担心狗狗跑丢了，真是个好工具！"),
  ];

  MemberController(this.accountRepository, this.memberRepository);

  @override
  void onReady() async {
    super.onReady();
    _startAnimationSwitcher();
    scrollController.addListener(() {
      double offset = scrollController.offset;
      double opacity = offset / 100;
      if (opacity > 1) {
        opacity = 1;
      } else if (opacity < 0) {
        opacity = 0;
      }
      _toolBarOpacity.value = opacity;
    });
    refreshMemberData();
  }

  void _startAnimationSwitcher() {
    _changeStreamController = AsyncUtil.interval(
        (time) => changeSwitcherContent(), Duration(seconds: 3), -1);
  }

  Future<void> changeSwitcherContent() async {
    int userId = random.nextInt(10000);
    String userIdStr = userId.toString();
    int padLength = 4 - userIdStr.length;
    for (int i = 0; i < padLength; i++) {
      userIdStr = random.nextInt(10).toString() + userIdStr;
    }
    bool isHour = random.nextBool();
    String secondsOrHour;
    if (isHour) {
      secondsOrHour = "${1 + random.nextInt(8)}小时";
    } else {
      secondsOrHour = "${1 + random.nextInt(59)}分钟";
    }

    int index = random.nextInt(_storeTypes.length);
    switcherController.updateWidget(Row(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        RichText(
            text: TextSpan(
                style: TextStyle(fontSize: 12.sp, color: Colors.white),
                children: [
              TextSpan(text: userIdStr),
              TextSpan(text: '用户 '),
              TextSpan(text: secondsOrHour),
              TextSpan(text: '前购买了'),
              TextSpan(
                  text: _storeTypes[index],
                  style: TextStyle(color: '#FFC95D'.color)),
            ]))
      ],
    ));
  }

  String getUserName(String phone) {
    if (phone.length > 4) {
      phone = phone.substring(phone.length - 4);
    }
    return '${StringName.mineAccountLoggedDesc}$phone';
  }

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

  @override
  void onClose() {
    super.onClose();
    _changeStreamController?.close();
    _memberDataFuture?.cancel();
    scrollController.dispose();
  }

  void onLoginClick() {
    if (accountRepository.isLogin.value) {
      return;
    }
    LoginPage.start();
  }

  void refreshMemberData() {
    _memberDataFuture?.cancel();
    _memberDataFuture =
        AsyncUtil.retryWithExponentialBackoff(() => _requestMemberData(), 4);
    _memberDataFuture?.catchError((error) {
      ErrorHandler.toastError(error);
    });
  }

  Future<void> _requestMemberData() {
    return memberRepository.getMemberList().then((response) {
      goodsList.clear();
      payItemList.clear();
      _selectedGoods.value = null;
      if (response.goodsList?.isNotEmpty == true) {
        goodsList.addAll(response.goodsList!);
        _selectedGoods.value = goodsList.first;
      }
      if (response.payInfoList?.isNotEmpty == true) {
        payItemList.addAll(response.payInfoList!);
      }
    });
  }

  void onGoodsItemClick(GoodsBean item) {
    _selectedGoods.value = item;
  }

  void onPrivacyPolicyClick() {
    BrowserPage.start(WebUrl.privacyPolicy);
  }

  void onTermOfServiceClick() {
    BrowserPage.start(WebUrl.userAgreement);
  }
}