// Author: fengshengxiong
// Date: 2024/5/20
// Description: 插页广告管理

import 'dart:async';
import 'dart:io';

import 'package:applovin_max/applovin_max.dart';
import 'package:get/get.dart';
import 'package:wallpaperx/common/utils/log_print.dart';
import 'package:wallpaperx/common/utils/num_util.dart';
import 'package:wallpaperx/common/utils/shared_util.dart';
import 'package:wallpaperx/firebase/firebase_analytics_manager.dart';
import 'package:wallpaperx/page/launch/launch_controller.dart';

class InterstitialAdManager {
  InterstitialAdManager._();

  static final InterstitialAdManager _instance = InterstitialAdManager._();

  factory InterstitialAdManager() => _instance;

  /// sdkKey
  final String applovinKey = 'HXOh4UBLahW9KzBBrxqwniKOvfD_JEDJgE9y2rv8DlmJaJ6xPEXUmmJyeAg0xipqdH_EiHg5NsnvfmIHubSu1k';

  /// 开屏广告
  final launchAdId = Platform.isAndroid ? '' : 'f4d33bc86b44eb24';

  /// 广告单元Id
  final adIds = [
    Platform.isAndroid ? '' : 'e0ac389b7746be38',
    Platform.isAndroid ? '' : 'a8ecc9c457dee7bf',
    Platform.isAndroid ? '' : 'f4231f22c0314229',
  ];

  /// 是否已初始化
  bool isInitialized = false;

  /// 是否显示
  bool isShowingAd = false;

  /// 重试计数
  // final _maxExponentialRetryCount = 6;
  // var _interstitialRetryAttempt = 0;

  Function()? onTap;

  /// 初始化
  Future<void> init() async {
    MaxConfiguration? configuration = await AppLovinMAX.initialize(applovinKey);
    if (configuration != null) {
      isInitialized = true;
      _attachAdListeners();
      loadAllAd();
    }
  }

  /// 广告监听
  void _attachAdListeners() {
    AppLovinMAX.setInterstitialListener(InterstitialListener(
      onAdLoadedCallback: (ad) async {
        LogPrint.d('插页广告加载成功:${ad.adUnitId}');
        if (ad.adUnitId == launchAdId) {
          if (Get.isRegistered<LaunchController>()) {
            LaunchController.to.editChangeValue();
          }
        }
        // _interstitialRetryAttempt = 0;
      },
      onAdLoadFailedCallback: (adUnitId, error) {
        LogPrint.d('插页广告加载失败adUnitId:$adUnitId,code:${error.code},message:${error.message}');
        // Applovin建议您以指数级更高的延迟重试，最大延迟可达64秒
        // _interstitialRetryAttempt = _interstitialRetryAttempt + 1;
        // if (_interstitialRetryAttempt > _maxExponentialRetryCount) return;
        // int retryDelay = pow(2, min(_maxExponentialRetryCount, _interstitialRetryAttempt)).toInt();

        Future.delayed(const Duration(seconds: 10), () {
          AppLovinMAX.loadInterstitial(adUnitId);
        });
      },
      onAdDisplayedCallback: (ad) {
        LogPrint.d('插页广告显示成功:${ad.adUnitId}');
        isShowingAd = true;
        FirebaseAnalyticsManager.logAdsShow();
      },
      onAdDisplayFailedCallback: (ad, error) {
        LogPrint.d('插页广告显示失败adUnitId:${ad.adUnitId},code:${error.code},message:${error.message}');
        isShowingAd = false;

        if (onTap != null) onTap!();
      },
      onAdClickedCallback: (ad) {},
      onAdHiddenCallback: (ad) {
        LogPrint.d('插页广告关闭:${ad.adUnitId}');
        isShowingAd = false;
        AppLovinMAX.loadInterstitial(ad.adUnitId);

        if (onTap != null) onTap!();
      },
    ));
  }

  void loadAllAd() {
    bool adSwitch = UPCache.getInstance().get<bool>('adSwitch') ?? false;
    if (!adSwitch) {
      return;
    }
    AppLovinMAX.loadInterstitial(launchAdId);
    for (var id in adIds) {
      AppLovinMAX.loadInterstitial(id);
    }
    LogPrint.d('插页广告正在加载');
  }

  /// 显示插页广告，如果准备好
  Future<void> showAdIfReady({bool showLaunchAd = false, Function()? onTap}) async {
    if (onTap != null) {
      this.onTap = onTap;
    }
    bool adSwitch = UPCache.getInstance().get<bool>('adSwitch') ?? false;
    if (!adSwitch) {
      if (this.onTap != null) this.onTap!();
      return;
    }
    if (!isInitialized) {
      if (this.onTap != null) this.onTap!();
      return;
    }
    var adId = launchAdId;
    if (!showLaunchAd) {
      int index = NumUtil.getRandomNumber(0, 3);
      adId = adIds[index];
    }
    bool isReady = (await AppLovinMAX.isInterstitialReady(adId))!;
    if (isReady) {
      if (isShowingAd) {
        LogPrint.d('尝试在已显示广告的情况下显示广告');
        if (this.onTap != null) this.onTap!();
        return;
      }
      AppLovinMAX.showInterstitial(adId);
    } else {
      if (this.onTap != null) this.onTap!();
      AppLovinMAX.loadInterstitial(adId);
    }
  }
}