using UnityEngine;
using GoogleMobileAds.Api;
using GoogleMobileAds.Common;
using System;
using System.Collections;
using System.Collections.Generic;

public class AdMobAllInOne : MonoBehaviour
{
    public static AdMobAllInOne Instance;

    [Header("REKLAM MODU")]
    [Tooltip("Geliştirme sırasında true bırak. Yayına çıkarken false yap.")]
    [SerializeField] private bool useTestAds = false;

    private const string TEST_INTERSTITIAL_ID = "ca-app-pub-3940256099942544/1033173712";
    private const string TEST_REWARDED_ID = "ca-app-pub-3940256099942544/5224354917";

    private const string REAL_INTERSTITIAL_ID = "ca-app-pub-9882956647539723/3464283079";
    private const string REAL_REWARDED_ID = "ca-app-pub-9882956647539723/9566656997";

    private string InterstitialId => useTestAds ? TEST_INTERSTITIAL_ID : REAL_INTERSTITIAL_ID;
    private string RewardedId => useTestAds ? TEST_REWARDED_ID : REAL_REWARDED_ID;

    [Header("TEST CİHAZLARI")]
    [Tooltip("Gerçek ID'lerle güvenli test için kendi cihazının test ID'sini ekle.")]
    [SerializeField] private List<string> testDeviceIds = new List<string>();

    [Header("GEÇİŞ REKLAMI AYARI")]
    [SerializeField] private float minSecondsBetweenInterstitial = 45f;

    private InterstitialAd interstitialAd;
    private RewardedAd rewardedAd;

    private bool isInitialized = false;
    private bool isInterstitialLoading = false;
    private bool isRewardedLoading = false;

    private int interstitialRetry = 0;
    private int rewardedRetry = 0;
    private const int MAX_RETRY = 6;

    private float lastInterstitialTime = -999f;

    private void Awake()
    {
        if (Instance != null && Instance != this)
        {
            Destroy(gameObject);
            return;
        }

        Instance = this;
        DontDestroyOnLoad(gameObject);

        Debug.Log("[ADMOB] Reklam yöneticisi oluşturuldu. Banner sistemi KAPALI.");
    }

    private void Start()
    {
        InitializeAds();
    }

    private void RunOnUnityThread(Action action)
    {
        if (action == null)
            return;

        MobileAdsEventExecutor.ExecuteInUpdate(action);
    }

    private void InitializeAds()
    {
        if (isInitialized)
            return;

        if (testDeviceIds != null && testDeviceIds.Count > 0)
        {
            RequestConfiguration config = new RequestConfiguration
            {
                TestDeviceIds = testDeviceIds
            };

            MobileAds.SetRequestConfiguration(config);
        }

        MobileAds.Initialize(initStatus =>
        {
            RunOnUnityThread(() =>
            {
                isInitialized = true;

                Debug.Log("[ADMOB] MobileAds başlatıldı. Mod: " + (useTestAds ? "TEST" : "GERÇEK"));

                LoadInterstitial();
                LoadRewarded();
            });
        });
    }

    private IEnumerator RetryAfter(float seconds, Action action)
    {
        yield return new WaitForSecondsRealtime(seconds);
        action?.Invoke();
    }

    private float RetryDelay(int retry)
    {
        return Mathf.Pow(2f, Mathf.Clamp(retry, 1, MAX_RETRY));
    }

    // =====================================================
    // INTERSTITIAL / GEÇİŞ REKLAMI
    // =====================================================

    public void LoadInterstitial()
    {
        if (!isInitialized)
        {
            Debug.Log("[ADMOB] Interstitial yüklenemedi, AdMob daha başlamadı.");
            return;
        }

        if (isInterstitialLoading)
            return;

        if (interstitialAd != null)
        {
            interstitialAd.Destroy();
            interstitialAd = null;
        }

        isInterstitialLoading = true;

        Debug.Log("[ADMOB] Interstitial yükleniyor: " + InterstitialId);

        AdRequest request = new AdRequest();

        InterstitialAd.Load(InterstitialId, request, (InterstitialAd ad, LoadAdError error) =>
        {
            RunOnUnityThread(() =>
            {
                isInterstitialLoading = false;

                if (error != null || ad == null)
                {
                    interstitialRetry = Mathf.Min(interstitialRetry + 1, MAX_RETRY);
                    float delay = RetryDelay(interstitialRetry);

                    Debug.LogError("[ADMOB] Interstitial yüklenemedi: " +
                                   (error != null ? error.GetMessage() : "ad null") +
                                   " | " + delay + " sn sonra tekrar denenecek.");

                    StartCoroutine(RetryAfter(delay, LoadInterstitial));
                    return;
                }

                interstitialAd = ad;
                interstitialRetry = 0;

                Debug.Log("[ADMOB] Interstitial yüklendi.");

                RegisterInterstitialEvents(interstitialAd);
            });
        });
    }

    private void RegisterInterstitialEvents(InterstitialAd ad)
    {
        ad.OnAdFullScreenContentClosed += () =>
        {
            RunOnUnityThread(() =>
            {
                lastInterstitialTime = Time.unscaledTime;

                Debug.Log("[ADMOB] Interstitial kapandı, yenisi yükleniyor.");

                LoadInterstitial();
            });
        };

        ad.OnAdFullScreenContentFailed += (AdError err) =>
        {
            RunOnUnityThread(() =>
            {
                Debug.LogError("[ADMOB] Interstitial gösterilemedi: " +
                               (err != null ? err.GetMessage() : "bilinmeyen"));

                LoadInterstitial();
            });
        };

        ad.OnAdPaid += (AdValue value) =>
        {
            RunOnUnityThread(() =>
            {
                Debug.Log("[ADMOB] Interstitial gelir: " + value.Value + " " + value.CurrencyCode);
            });
        };
    }

    public void ShowInterstitial()
    {
        if (!isInitialized)
        {
            Debug.Log("[ADMOB] Interstitial gösterilemedi, AdMob başlamadı.");
            return;
        }

        if ((Time.unscaledTime - lastInterstitialTime) < minSecondsBetweenInterstitial)
        {
            Debug.Log("[ADMOB] Interstitial süre limiti nedeniyle gösterilmedi.");
            return;
        }

        TryShowInterstitial();
    }

    public void ShowInterstitialIgnoreTime()
    {
        if (!isInitialized)
        {
            Debug.Log("[ADMOB] Interstitial gösterilemedi, AdMob başlamadı.");
            return;
        }

        TryShowInterstitial();
    }

    private void TryShowInterstitial()
    {
        if (interstitialAd != null && interstitialAd.CanShowAd())
        {
            Debug.Log("[ADMOB] Interstitial gösteriliyor.");
            interstitialAd.Show();
        }
        else
        {
            Debug.Log("[ADMOB] Interstitial hazır değil, tekrar yükleniyor.");
            LoadInterstitial();
        }
    }

    public bool IsInterstitialReady()
    {
        return interstitialAd != null && interstitialAd.CanShowAd();
    }

    // =====================================================
    // REWARDED / ÖDÜLLÜ REKLAM
    // =====================================================

    public void LoadRewarded()
    {
        if (!isInitialized)
        {
            Debug.Log("[ADMOB] Rewarded yüklenemedi, AdMob daha başlamadı.");
            return;
        }

        if (isRewardedLoading)
            return;

        if (rewardedAd != null)
        {
            rewardedAd.Destroy();
            rewardedAd = null;
        }

        isRewardedLoading = true;

        Debug.Log("[ADMOB] Rewarded yükleniyor: " + RewardedId);

        AdRequest request = new AdRequest();

        RewardedAd.Load(RewardedId, request, (RewardedAd ad, LoadAdError error) =>
        {
            RunOnUnityThread(() =>
            {
                isRewardedLoading = false;

                if (error != null || ad == null)
                {
                    rewardedRetry = Mathf.Min(rewardedRetry + 1, MAX_RETRY);
                    float delay = RetryDelay(rewardedRetry);

                    Debug.LogError("[ADMOB] Rewarded yüklenemedi: " +
                                   (error != null ? error.GetMessage() : "ad null") +
                                   " | " + delay + " sn sonra tekrar denenecek.");

                    StartCoroutine(RetryAfter(delay, LoadRewarded));
                    return;
                }

                rewardedAd = ad;
                rewardedRetry = 0;

                Debug.Log("[ADMOB] Rewarded yüklendi.");

                RegisterRewardedEvents(rewardedAd);
            });
        });
    }

    private void RegisterRewardedEvents(RewardedAd ad)
    {
        ad.OnAdFullScreenContentClosed += () =>
        {
            RunOnUnityThread(() =>
            {
                Debug.Log("[ADMOB] Rewarded kapandı, yenisi yükleniyor.");
                LoadRewarded();
            });
        };

        ad.OnAdFullScreenContentFailed += (AdError err) =>
        {
            RunOnUnityThread(() =>
            {
                Debug.LogError("[ADMOB] Rewarded gösterilemedi: " +
                               (err != null ? err.GetMessage() : "bilinmeyen"));

                LoadRewarded();
            });
        };

        ad.OnAdPaid += (AdValue value) =>
        {
            RunOnUnityThread(() =>
            {
                Debug.Log("[ADMOB] Rewarded gelir: " + value.Value + " " + value.CurrencyCode);
            });
        };
    }

    public void ShowRewarded(Action onReward = null, Action onNotReady = null)
    {
        if (!isInitialized)
        {
            Debug.Log("[ADMOB] Rewarded gösterilemedi, AdMob başlamadı.");
            onNotReady?.Invoke();
            return;
        }

        if (rewardedAd != null && rewardedAd.CanShowAd())
        {
            Debug.Log("[ADMOB] Rewarded gösteriliyor.");

            rewardedAd.Show((Reward reward) =>
            {
                RunOnUnityThread(() =>
                {
                    Debug.Log("[ADMOB] Rewarded ödül kazanıldı: " + reward.Amount + " " + reward.Type);
                    onReward?.Invoke();
                });
            });
        }
        else
        {
            Debug.Log("[ADMOB] Rewarded hazır değil, tekrar yükleniyor.");
            LoadRewarded();
            onNotReady?.Invoke();
        }
    }

    public bool IsRewardedReady()
    {
        return rewardedAd != null && rewardedAd.CanShowAd();
    }

    // =====================================================
    // BUTTON ONCLICK İÇİN
    // =====================================================

    public void ShowInterstitialFromButton()
    {
        ShowInterstitial();
    }

    public void ShowInterstitialIgnoreTimeFromButton()
    {
        ShowInterstitialIgnoreTime();
    }

    public void ShowRewardedFromButton()
    {
        ShowRewarded(() =>
        {
            Debug.Log("[ADMOB] Rewarded butondan izlendi, standart ödül verildi.");
        });
    }

    public void LoadInterstitialFromButton()
    {
        LoadInterstitial();
    }

    public void LoadRewardedFromButton()
    {
        LoadRewarded();
    }

    public void DebugAdStatusFromButton()
    {
        Debug.Log("[ADMOB] Interstitial hazır mı: " + IsInterstitialReady());
        Debug.Log("[ADMOB] Rewarded hazır mı: " + IsRewardedReady());
    }

    // =====================================================
    // BANNER TAMAMEN KAPALI
    // =====================================================

    public void ShowBannerFromButton()
    {
        Debug.Log("[ADMOB] Banner kapalı. Gösterilmeyecek.");
    }

    public void HideBannerFromButton()
    {
        Debug.Log("[ADMOB] Banner kapalı. Gizlenecek banner yok.");
    }

    public void ReloadBannerFromButton()
    {
        Debug.Log("[ADMOB] Banner kapalı. Yeniden yüklenecek banner yok.");
    }

    public void ShowBanner()
    {
        Debug.Log("[ADMOB] Banner kapalı.");
    }

    public void HideBanner()
    {
        Debug.Log("[ADMOB] Banner kapalı.");
    }

    // =====================================================
    // TEMİZLEME
    // =====================================================

    private void OnDestroy()
    {
        if (Instance != this)
            return;

        if (interstitialAd != null)
        {
            interstitialAd.Destroy();
            interstitialAd = null;
        }

        if (rewardedAd != null)
        {
            rewardedAd.Destroy();
            rewardedAd = null;
        }

        Instance = null;
    }
}