namespace Guru
{
    using UnityEngine;
    using System;
    
    
    public partial class GuruSDK
    {
        
        private static AdsInitSpec _adInitSpec;
        
        /// <summary>
        /// 启动广告服务
        /// </summary>
        public static void StartAds(AdsInitSpec spec = null)
        {
            _adInitSpec = spec;
            if (InitConfig.UseCustomConsent)
            {
                Debug.Log($"{Tag} --- Call <color=orange>StartAdsWithCustomConsent</color> when you use custom consent, and pass the result (boolean) to the method.");
                return;
            }
            
            // 默认的启动顺序是先启动Consent后, 根据用户回调的结果来启动广告
            Instance.StartConsentFlow();
        }

        /// <summary>
        /// 是否已经购买了去广告
        /// </summary>
        /// <param name="buyNoAds"></param>
        public static void StartAds(bool buyNoAds = false)
        {
            StartAds(AdsInitSpec.BuildWithNoAds());  // 按照默认的去广告来生成广告启动配置
        }


        /// <summary>
        /// 使用自定义的Consent, 获取用户授权后, 调用此方法
        /// </summary>
        /// <param name="userAllow"></param>
        /// <param name="consentName">Consent 引导的类型, 如果使用了 MAX 的 consent 请填写 max </param>
        /// <param name="spec">广告启动配置</param>
        public static void StartAdsWithCustomConsent(bool userAllow = true, 
            string consentName = "custom", AdsInitSpec spec = null)
        {
#if UNITY_IOS
            _attType = consentName;
            InitAttStatus();
#endif
            if (userAllow)
            {
#if UNITY_IOS
                CheckAttStatus();
#else
                StartAdService(spec);
#endif
            }
            else
            {
                Debug.Log($"{Tag} --- User refuse to provide ads Id, Ads Service will be cancelled");
            }
        }

        /// <summary>
        /// 使用自定义的Consent, 获取用户授权后, 调用此方法
        /// </summary>
        /// <param name="userAllow">自定义 Consent 的用户授权结果</param>
        /// <param name="consentName">Consent引导名称</param>
        /// <param name="buyNoAds">是否已经购买了去广告</param>
        public static void StartAdsWithCustomConsent(bool userAllow = true, string consentName = "custom",
            bool buyNoAds = false)
        {
            StartAdsWithCustomConsent(userAllow, consentName, AdsInitSpec.BuildWithNoAds());
        }


        #region Guru Consent

        private bool _hasConsentCalled = false;

        /// <summary>
        /// 启动Consent流程
        /// 因为之后规划广告流程会放在 Consent 初始化之后, 因此请求广告的时候会需要先请求 Consent
        /// </summary>
        private void StartConsentFlow()
        {
            if (_hasConsentCalled) return;
            _hasConsentCalled = true;

            bool enableCountryCheck = false;
            string dmaMapRule = "";
            if (_appServicesConfig != null && _appServicesConfig.parameters != null)
            {
                enableCountryCheck = _appServicesConfig.DMACountryCheck();
                dmaMapRule = _appServicesConfig.DMAMapRule();
            }

#if UNITY_IOS
            InitAttStatus(); // Consent 启动前记录 ATT 初始值
#endif
            Debug.Log($"{Tag}  --- Call:StartConsentFlow ---");
            GuruConsent.StartConsent(OnGuruConsentOver, dmaMapRule:dmaMapRule, enableCountryCheck:enableCountryCheck);
        }

        /// <summary>
        /// Guru Consent flow is Over
        /// </summary>
        /// <param name="code"></param>
        private void OnGuruConsentOver(int code)
        {
            
            // 无论状态如何, 都在回调内启动广告初始化
            StartAdService(_adInitSpec);

            // 调用回调
            Callbacks.ConsentFlow._onConsentResult?.Invoke(code);
            
#if UNITY_IOS
            CheckAttStatus();  // [iOS] Consent 启动后检查 ATT 初始值
#endif
            
            // 内部处理后继逻辑
            switch(code)
            {
                case GuruConsent.StatusCode.OBTAINED:
                case GuruConsent.StatusCode.NOT_AVAILABLE:
                    // 已获取授权, 或者地区不可用, ATT 尚未启动
                    // TODO: 添加后继处理逻辑
                    break;
            }
        }
        
        #endregion
        
        #region IOS ATT 广告授权流程
        
#if UNITY_IOS
        
        private static string _initialAttStatus;
        private static String _attType = "admob";
        private static bool _autoReCallAtt = false;
        
        /// <summary>
        /// 显示系统的 ATT 弹窗
        /// </summary>
        public static void RequestAttDialog()
        {
            LogI($"RequestATTDialog");
            ATTManager.RequestATTDailog(ReportAttStatus);
        }
        
        /// <summary>
        /// 初始化 ATT 状态
        /// </summary>
        public static void InitAttStatus()
        {
            _attType = InitConfig.UseCustomConsent ? ATTManager.GUIDE_TYPE_CUSTOM : ATTManager.GUIDE_TYPE_ADMOB; // 点位属性确定
            _initialAttStatus = ATTManager.GetStatus();
            SetUserProperty(Analytics.ParameterATTStatus, _initialAttStatus); // 上报一个初始的状态
        }
        
        /// <summary>
        /// iOS 平台检查 ATT 状态
        /// </summary>
        private static void CheckAttStatus(bool autoReCall = false)
        {
            _autoReCallAtt = autoReCall;
            
            // Delay 1s to get the user choice
            Delay(1, () => ATTManager.CheckStatus(ReportAttStatus));
        }

        private static void ReportAttStatus(string status)
        {
            LogI($"{Tag} --- Get Att status:{status}  att Type:{_attType}  recall:{_autoReCallAtt}");
            SetUserProperty(Analytics.ParameterATTStatus, status); // 当前的状态
            
            if (!string.IsNullOrEmpty(status) 
                && status != _initialAttStatus 
                && status !=  ATTManager.ATT_STATUS_NOT_DETERMINED)
            {
                // 上报点位:
                Analytics.AttResult(status, _attType);
            }

            switch(status)
            {
                case ATTManager.ATT_STATUS_NOT_DETERMINED:
                    // ATT 状态未知, 请求弹窗
                    if(_autoReCallAtt) RequestAttDialog();
                    break;
                case ATTManager.ATT_STATUS_RESTRICTED:
                case ATTManager.ATT_STATUS_DENIED:
                    // ATT 状态受限, 或者被拒绝
                    break;
                case ATTManager.ATT_STATUS_AUTHORIZED:
                    // ATT 状态已授权
                    break;
            }
        } 
#endif
        
        #endregion   
        
        #region Ad Services

        private static bool _initAdsCompleted = false;
        
        
        /// <summary>
        /// 启动广告服务
        /// </summary>
        internal static void StartAdService(AdsInitSpec spec = null)
        {
            LogI($"StartAdService");
            if (spec == null)
            {
                spec = AdsInitSpec.BuildDefault(InitConfig.AutoLoadWhenAdsReady, IsDebugMode);
                if (ADService.Instance.IsBuyNoAds)
                {
                    spec = AdsInitSpec.BuildWithNoAds(InitConfig.AutoLoadWhenAdsReady, IsDebugMode);
                }
            }
            ADService.Instance.StartService(OnAdsInitComplete, spec);
            
            //--------- Callbacks -----------
            ADService.OnBannerLoaded = OnBannerLoaded;
            ADService.OnInterstitialLoaded = OnInterstitialLoaded;
            ADService.OnInterstitialFailed = OnInterstitialFailed;
            ADService.OnRewardLoaded = OnRewardLoaded;
            ADService.OnRewardFailed = OnRewardFailed;
        }
        
        private static void OnBannerLoaded() 
            => Callbacks.Ads._onBannerADLoaded?.Invoke();
        private static void OnInterstitialLoaded() 
            => Callbacks.Ads._onInterstitialADLoaded?.Invoke();
        private static void OnInterstitialFailed()
            => Callbacks.Ads._onInterstitialADFailed?.Invoke();
        private static void OnRewardLoaded()
            => Callbacks.Ads._onRewardedADLoaded?.Invoke(); 
        private static void OnRewardFailed()
            => Callbacks.Ads._onRewardADFailed?.Invoke();

        private static void OnAdsInitComplete()
        {
            _initAdsCompleted = true;
            Callbacks.Ads._onAdsInitComplete?.Invoke();
        }

        private static bool CheckAdsReady()
        {
            if (!_initAdsCompleted)
            {
                LogE("Ads is not ready. Call <GuruSDk.StartAdService> first.");
                return false;
            }
            return true;
        }

        /// <summary>
        /// 显示Banner广告
        /// </summary>
        /// <param name="placement"></param>
        public static void ShowBanner(string placement = "")
        {
            if (!CheckAdsReady()) return;
            ADService.Instance.ShowBanner(placement);
        }
        /// <summary>
        /// 隐藏Banner广告
        /// </summary>
        public static void HideBanner()
        {
            if (!CheckAdsReady()) return;
            ADService.Instance.HideBanner();
        }

        public static void LoadInterstitialAd()
        {
            if (!CheckAdsReady()) return;
            ADService.Instance.RequestInterstitialAD();
        }

        public static bool IsInterstitialAdReady => ADService.Instance.IsInterstitialADReady();
        
        /// <summary>
        /// 显示插屏广告
        /// </summary>
        /// <param name="placement"></param>
        /// <param name="onDismissed"></param>
        public static void ShowInterstitialAd(string placement = "", Action onDismissed = null)
        {
            if (!CheckAdsReady()) return;
            if (!ADService.Instance.IsInterstitialADReady())
            {
                LogE("Interstitial is not ready. Call <GuruSDk.ShowInterstitialAd> again.");
                LoadInterstitialAd();
                return;
            }
            ADService.Instance.ShowInterstitialAD(placement, onDismissed);
        }

        public static void LoadRewardAd()
        {
            if (!CheckAdsReady()) return;
            ADService.Instance.RequestRewardedAD();
        }
        
        public static bool IsRewardAdReady => ADService.Instance.IsRewardedADReady();
        
        /// <summary>
        /// 显示激励视频广告
        /// </summary>
        /// <param name="placement"></param>
        /// <param name="onRewarded"></param>
        /// <param name="onFailed"></param>
        public static void ShowRewardAd(string placement = "", Action onRewarded = null, Action<string> onFailed = null)
        {
            if (!CheckAdsReady()) return;
            if (!ADService.Instance.IsRewardedADReady())
            {
                LogE("RewardAd is not ready. Call <GuruSDk.LoadRewardAd> again.");
                LoadRewardAd();
                return;
            }
            ADService.Instance.ShowRewardedAD(placement, onRewarded, onFailed);
        }


        #endregion

        #region MaxServices

        /// <summary>
        /// 显示Max调试菜单
        /// </summary>
        public static void ShowMaxDebugPanel()
        {
#if UNITY_EDITOR

            LogI($"Can not show Max Debug Panel in Editor, skipped.");
            return;
#endif
            if (!ADService.Instance.IsInitialized)
            {
                LogI($"ADService is not initialized, call <GuruSDK.StartAds> first.");
                return;
            }
            ADService.Instance.ShowMaxDebugPanel();
        }

        #endregion
    }


    

}