import 'dart:async';

import 'package:Parlando/home/models/setting_entity.dart';
import 'package:Parlando/net/dio_utils.dart';
import 'package:Parlando/net/http_api.dart';
import 'package:flutter/material.dart';
import 'package:flutter_swiper_null_safety/flutter_swiper_null_safety.dart';
import 'package:Parlando/extension/shared/size_fit.dart';
import 'package:Parlando/login/login_router.dart';
import 'package:Parlando/res/constant.dart';
import 'package:Parlando/routers/fluro_navigator.dart';
import 'package:Parlando/routers/routers.dart';
import 'package:Parlando/util/device_utils.dart';
import 'package:Parlando/util/image_utils.dart';
import 'package:Parlando/util/theme_utils.dart';
import 'package:Parlando/widgets/fractionally_aligned_sized_box.dart';
import 'package:Parlando/widgets/load_image.dart';
import 'package:jpush_flutter/jpush_flutter.dart';
import 'package:quick_actions/quick_actions.dart';
import 'package:rxdart/rxdart.dart';
import 'package:sp_util/sp_util.dart';

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

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

class _SplashPageState extends State<SplashPage> {
  int _status = 0;
  final List<String> _guideList = ['app_start_1', 'app_start_2', 'app_start_3'];
  StreamSubscription? _subscription;

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      /// 两种初始化方案，另一种见 main.dart
      /// 两种方法各有优劣
      await SpUtil.getInstance();
      await Device.initDeviceInfo();
      if (SpUtil.getBool(Constant.keyGuide, defValue: true)!) {
        /// 预先缓存图片，避免直接使用时因为首次加载造成闪动
        void _precacheImage(String image) {
          precacheImage(
            ImageUtils.getAssetImage(image, format: ImageFormat.png),
            context,
          );
        }

        _guideList.forEach(_precacheImage);
      }
      _initSplash();
    });
    if (Device.isAndroid) {
      const QuickActions quickActions = QuickActions();
      quickActions.initialize((String shortcutType) async {
        if (shortcutType == 'demo') {
          _subscription?.cancel();
        }
      });
    }

    ///创建 JPush
    JPush jpush = JPush();

    ///配置应用 Key
    jpush.setup(
      appKey: "a3396b5bd1a399cfe5be96ed",
      channel: "default",
      production: false,

      /// 设置是否打印 debug 日志
      debug: true,
    );
    jpush.applyPushAuthority(
      const NotificationSettingsIOS(sound: true, alert: true, badge: true),
    );
  }

  @override
  void dispose() {
    _subscription?.cancel();
    super.dispose();
  }

  void _initGuide() {
    setState(() {
      _status = 1;
    });
  }

  void _initSplash() {
    // 加载配置数据
    DioUtils.instance.asyncRequestNetwork<SettingEntity>(
      Method.get,
      HttpApi.setting,
      params: [],
      onSuccess: (data) {},
      onError: (code, msg) {},
    );

    _subscription =
        Stream.value(1).delay(const Duration(milliseconds: 1500)).listen((_) {
      if (SpUtil.getBool(Constant.keyGuide, defValue: true)! ||
          Constant.isDriverTest) {
        SpUtil.putBool(Constant.keyGuide, false);
        _initGuide();
      } else {
        _goLogin();
      }
    });
  }

  void _goLogin() {
    if (SpUtil.containsKey(Constant.userToken)!) {
      NavigatorUtils.push(context, Routes.navBarPage, clearStack: true);
    } else {
      NavigatorUtils.push(context, LoginRouter.loginPage, replace: true);
    }
  }

  @override
  Widget build(BuildContext context) {
    HYSizeFit.initialize(context);
    return Material(
      color: context.backgroundColor,
      child: _status == 0
          ? const FractionallyAlignedSizedBox(
              heightFactor: 0.3,
              widthFactor: 0.33,
              leftFactor: 0.33,
              bottomFactor: 0,
              child: LoadAssetImage('logo'),
            )
          : Swiper(
              key: const Key('swiper'),
              itemCount: _guideList.length,
              loop: false,
              itemBuilder: (_, index) {
                return LoadAssetImage(
                  _guideList[index],
                  key: Key(_guideList[index]),
                  fit: BoxFit.cover,
                  width: double.infinity,
                  height: double.infinity,
                  format: ImageFormat.png,
                );
              },
              onTap: (index) {
                if (index == _guideList.length - 1) {
                  _goLogin();
                }
              },
            ),
    );
  }
}