using System.Text;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.Purchasing;
using UnityEngine.Purchasing.Extension;

public class IAPManager : MonoBehaviour, IDetailedStoreListener
{
    private IStoreController storeController; //구매 과정을 제어하는 함수 제공자
    private IExtensionProvider storeExtensionProvider; //여러 플랫폼을 위한 확장 처리 제공자

    private StringBuilder sb = new StringBuilder();

    public UnityAction<string> OnProcessPurchase;

    public UnityAction OnProcessPurchaseFailed;

    private bool isInitialize = false;

    private void Start()
    {
        if (GameManager.Network != null)
        {
            if (GameManager.Network.IsOnline)
            {
                InitUnityIAP(); //Start 문에서 초기화 필수
            }

            GameManager.Network.OnNetworkOnline += OnNetworkOnline;
        }
    }

    /* Unity IAP를 초기화하는 함수 */
    private void InitUnityIAP()
    {
        ConfigurationBuilder builder = ConfigurationBuilder.Instance(StandardPurchasingModule.Instance());

        /* 구글 플레이 상품들 추가 */
        builder.AddProduct("com.fgb.adsremove", ProductType.Consumable);
        builder.AddProduct("com.fgb.cash200",  ProductType.Consumable);
        builder.AddProduct("com.fgb.cash1500",  ProductType.Consumable);
        builder.AddProduct("com.fgb.cash3300", ProductType.Consumable);
        builder.AddProduct("com.fgb.heart20",  ProductType.Consumable);
        builder.AddProduct("com.fgb.heart45",  ProductType.Consumable);
        builder.AddProduct("com.fgb.heart75",  ProductType.Consumable);

        UnityPurchasing.Initialize(this, builder);

        isInitialize = true;
    }

    /* 구매하는 함수 */
    public void Purchase(string productId)
    {
        Product product = storeController.products.WithID(productId); //상품 정의

        if (product != null && product.availableToPurchase) //상품이 존재하면서 구매 가능하면
        {
            storeController.InitiatePurchase(product); //구매가 가능하면 진행
        }
        else //상품이 존재하지 않거나 구매 불가능하면
        {
            Debug.Log("상품이 없거나 현재 구매가 불가능합니다");
        }
    }

    /* 초기화 성공 시 실행되는 함수 */
    public void OnInitialized(IStoreController controller, IExtensionProvider extension)
    {
        Debug.Log("초기화에 성공했습니다");

        storeController = controller;
        storeExtensionProvider = extension;
    }

    /* 초기화 실패 시 실행되는 함수 */
    public void OnInitializeFailed(InitializationFailureReason error)
    {
        sb.Clear();
        sb.Append("IAPManager: OnInitializeFailed: ").Append(error.ToString());

        Debug.LogError(sb.ToString());
    }

    public void OnInitializeFailed(InitializationFailureReason error, string message)
    {
        sb.Clear();
        sb.Append("IAPManager: OnInitializeFailed: ").Append(error.ToString()).Append(": ").Append(message);

        Debug.LogError(sb.ToString());
    }

    /* 구매에 실패했을 때 실행되는 함수 */
    public void OnPurchaseFailed(Product product, PurchaseFailureDescription failureDescription)
    {
        OnProcessPurchase?.Invoke("FailPurchase");
    }

    public void OnPurchaseFailed(Product product, PurchaseFailureReason failureReason)
    {
        sb.Clear();
        sb.Append("IAPManager: OnPurchaseFailed: ").Append(product.ToString()).Append(failureReason.ToString());

        Debug.LogError(sb.ToString());

        OnProcessPurchase?.Invoke("FailPurchase");
    }

    /* 구매를 처리하는 함수 */
    public PurchaseProcessingResult ProcessPurchase(PurchaseEventArgs args)
    {
        Debug.Log("IAPManager: SuccessPurchase");

        AddProductItem(args.purchasedProduct.definition.id);

        OnProcessPurchase?.Invoke(args.purchasedProduct.definition.id);

        return PurchaseProcessingResult.Complete;
    }

    private void OnNetworkOnline(bool isOnline)
    {
        if(isOnline == true && isInitialize == false)
        {
            InitUnityIAP();
        }
    }

    public void AddProductItem(string id)
    {
        switch (id)
        {
            case "com.fgb.adsremove":
                GameManager.DB.RemoveADS();
                GameManager.ADS.HideBanner();

                GameManager.UI.ShowNStackPopup(EPopupType.ADSRemovePopup);
                break;

            case "com.fgb.heart20":
                GameManager.DB.AddHeart(20, this.name);
                break;
            case "com.fgb.heart45":
                GameManager.DB.AddHeart(45, this.name);
                break;
            case "com.fgb.heart75":
                GameManager.DB.AddHeart(75, this.name);
                break;

            case "com.fgb.cash200":
                GameManager.DB.AddKey(200, this.name);
                break;
            case "com.fgb.cash1500":
                GameManager.DB.AddKey(1500, this.name);
                break;
            case "com.fgb.cash3300":
                GameManager.DB.AddKey(3300, this.name);
                break;
        }
    }
}