using UnityEngine;
using UnityEngine.Advertisements;

public class InterstitialAdsManager : MonoBehaviour, IUnityAdsLoadListener, IUnityAdsShowListener
{
#if UNITY_ANDROID
    private string adUnitId = "Interstitial1";
#elif UNITY_IOS
    private string adUnitId = "Interstitial_iOS";
#else
    private string adUnitId = "Interstitial1";
#endif

    public static InterstitialAdsManager Instance;
    public int runCount = 0;
    public int showEveryXRuns = 3;

    void Awake()
    {
        if (Instance == null)
        {
            Instance = this;
            DontDestroyOnLoad(gameObject);
        }
        else
        {
            Destroy(gameObject);
        }
    }

    void Start()
    {
        LoadAd();
    }

    // 🔄 Call this after each death
    public void OnRunEnded()
    {
        runCount++;

        if (runCount >= showEveryXRuns)
        {
            ShowAd();
            runCount = 0;
        }
    }

    // 📥 Load
    public void LoadAd()
    {
        Advertisement.Load(adUnitId, this);
    }

    public void ShowAd()
    {
        if (Advertisement.isInitialized &&
            Advertisement.isSupported)
        {
            Advertisement.Show(adUnitId, this);
        }
        else
        {
            Debug.Log("Ad not ready");
        }
    }
    // ===== Callbacks =====

    public void OnUnityAdsAdLoaded(string adUnitId)
    {
        Debug.Log("Interstitial Loaded");
    }

    public void OnUnityAdsFailedToLoad(string adUnitId, UnityAdsLoadError error, string message)
    {
        Debug.Log("Load Failed: " + message);
    }

    public void OnUnityAdsShowComplete(string adUnitId, UnityAdsShowCompletionState state)
    {
        Debug.Log("Interstitial Closed");

        LoadAd(); // 🔁 reload next
    }

    public void OnUnityAdsShowFailure(string adUnitId, UnityAdsShowError error, string message)
    {
        Debug.Log("Show Failed: " + message);
    }

    public void OnUnityAdsShowStart(string adUnitId) { }
    public void OnUnityAdsShowClick(string adUnitId) { }
}