import 'dart:io';

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/scheduler.dart';
import 'package:flutter/services.dart';
import 'package:get_it/get_it.dart';
import 'package:provider/provider.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:sport/application.dart';
import 'package:sport/pages/game/index.dart';
import 'package:sport/pages/home/home_info_page.dart';
import 'package:sport/pages/my/my_page.dart';
import 'package:sport/pages/run/run_data.dart';
import 'package:sport/pages/run/setting_page.dart';
import 'package:sport/pages/social/new_social_index_page.dart';
import 'package:sport/pages/social/social_index_page.dart';
import 'package:sport/provider/bluetooth.dart';
import 'package:sport/provider/game_model.dart';
import 'package:sport/provider/message_model.dart';
import 'package:sport/provider/user_model.dart';
import 'package:sport/services/app_lifecycle_state.dart';
import 'package:sport/utils/task_queue.dart';
import 'package:sport/utils/toast.dart';
import 'package:sport/utils/update_apk.dart';
import 'package:umeng_common_sdk/umeng_common_sdk.dart';

class HomePage extends StatefulWidget {
  @override
  createState() => _HomePageState();
}

class _HomePageState extends LifecycleState<HomePage> {
  var _pageController = PageController();
  DateTime? _lastPressed;

  ValueNotifier<int> _valueNotifierIndex = ValueNotifier(0);
  final Duration _exitDuration = Duration(seconds: 2);
  final GlobalKey _key = GlobalKey();

  late MessageModel _messageModel;
  late UserModel userModel;

  late List<Widget> _pages;

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

    if (openSocial()) {
      _pages = <Widget>[HomeInfoPage(), GamePage(), SocialIndexPage(), MyPage()];
    } else {
      _pages = <Widget>[HomeInfoPage(), GamePage(), MyPage()];
    }

    _messageModel = GetIt.I<MessageModel>();
    GetIt.I<Bluetooth>().init(context);
    userModel = Provider.of<UserModel>(context, listen: false);

    SchedulerBinding.instance?.addPostFrameCallback((timeStamp) async {
      UserModel userModel = Provider.of<UserModel>(context, listen: false);
      await userModel.initUser();
      if (userModel.user.id > 0) {
        updateApp(context);

        _messageModel.init();
        _messageModel.push(context);
        _messageModel.loop(context);

        var preferences = await SharedPreferences.getInstance();
        await preferences.remove(RunSetting.KEY_START);
        uploadRunData();
        TaskQueue().upload();
      }
    });

    UmengCommonSdk.initCommon("60f23987a6f90557b7bc7505", "60f23a652a1a2a58e7db1b21", "ouj");
    UmengCommonSdk.onEvent("app_launch", {});
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    super.didChangeAppLifecycleState(state);
    print("HomePage $state");
    _messageModel.state = state;

    if (userModel.user.id > 0) {
      switch (state) {
        case AppLifecycleState.resumed:
          GetIt.I<Bluetooth>().listen(context);
          _messageModel.loop(context);
          GetIt.I<GameModel>().resumed();
          // SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
          break;
        case AppLifecycleState.paused:
          GetIt.I<Bluetooth>().background(context);
          _messageModel.close();
          break;
        default:
          break;
      }
    }
    appLifecycleState = state;
  }

  @override
  void dispose() {
    super.dispose();
    _valueNotifierIndex.dispose();
    _pageController.dispose();
  }

  @override
  Widget build(BuildContext context) {
    Application.context = context;
    return Scaffold(
      key: _key,
      backgroundColor: Colors.white,
      bottomNavigationBar: AnnotatedRegion<SystemUiOverlayStyle>(
        value: SystemUiOverlayStyle.light,
        child: Container(
          decoration: BoxDecoration(boxShadow: [BoxShadow(offset: Offset(0.0, 3), blurRadius: 3, spreadRadius: 0, color: Colors.black38)],),
          child: ValueListenableBuilder(
            valueListenable: _valueNotifierIndex,
            builder: (BuildContext context, int value, Widget? child) => CupertinoTabBar(
              backgroundColor: Colors.white,
              border: null,
              iconSize: 22.0,
              activeColor: Colors.black,
              inactiveColor: const Color(0xff666666),
              items: <BottomNavigationBarItem>[
                BottomNavigationBarItem(
                  icon: Padding(
                    padding: const EdgeInsets.only(top: 6.0),
                    child: Image.asset("lib/assets/img/tab_home_${value == 0 ? "press" : "normal"}.png"),
                  ),
                  label: "首页",
                ),
                BottomNavigationBarItem(
                  icon: Padding(
                    padding: const EdgeInsets.only(top: 6.0),
                    child: Image.asset("lib/assets/img/tab_game_${value == 1 ? "press" : "normal"}.png"),
                  ),
                  label: "运动",
                ),
                if (openSocial())
                  BottomNavigationBarItem(
                    icon: Stack(
                      clipBehavior: Clip.none,
                      alignment: Alignment.center,
                      children: [
                        Center(
                          child: Padding(
                            padding: const EdgeInsets.only(top: 6.0),
                            child: Image.asset("lib/assets/img/tab_bbs_${value == _pages.length - 2 ? "press" : "normal"}.png"),
                          ),
                        ),
                        ValueListenableBuilder(
                            valueListenable: _messageModel.notifierSocialTotal,
                            builder: (BuildContext context, int value, Widget? child) {
                              if (value == 0) return Container();
                              return Container(
                                margin: EdgeInsets.only(left: 20, bottom: 16),
                                width: 8,
                                height: 8,
                                decoration: BoxDecoration(shape: BoxShape.circle, color: Colors.red),
                              );
                            })
                      ],
                    ),
                    label: "社区",
                  ),
                BottomNavigationBarItem(
                  icon: Padding(
                    padding: const EdgeInsets.only(top: 6.0),
                    child: Image.asset("lib/assets/img/tab_my_${value == _pages.length - 1 ? "press" : "normal"}.png"),
                  ),
                  label: "我的",
                ),
              ],
              currentIndex: value,
              onTap: (index) {
                _pageController.jumpToPage(index);
                _valueNotifierIndex.value = index;
                // 这里得轮询解决
//
                UmengCommonSdk.onEvent("index_tab_${_pages[index].runtimeType}", {});
              },
            ),
          ),
        ),
      ),
      body: WillPopScope(
        onWillPop: () async {
          if (_lastPressed == null || DateTime.now().difference(_lastPressed!) > _exitDuration) {
            //两次点击间隔超过2秒则重新计时
            _lastPressed = DateTime.now();
            ToastUtil.show("再次点击返回键退出");
            return false;
          }
          exit(0);
        },
        child: PageView.builder(
          itemBuilder: (ctx, index) => _pages[index],
          itemCount: _pages.length,
          controller: _pageController,
          physics: NeverScrollableScrollPhysics(),
          onPageChanged: (index) {
            Application.currentPage = index;
          },
        ),
      ),
    );
  }
}