using System;

namespace WordsToolkit.Scripts.Services.IAP
{
    /// <summary>
    /// IAP 典型错误类型枚举
    /// </summary>
    public enum IAPErrorType
    {
        None,
        UserCancelled,
        PaymentDeclined,
        InsufficientFunds,
        ProductUnavailable,
        DuplicateTransaction,
        NetworkError,
        NetworkUnavailable,
        IAPInitFailed,
        InvalidProductID,
        Unknown
    }

    public static class IAPErrorHelper
    {
        /// <summary>
        /// 根据错误信息字符串，提取并映射到 IAPErrorType 枚举
        /// </summary>
        public static IAPErrorType ParseError(string errorMessage)
        {
            if (string.IsNullOrEmpty(errorMessage))
                return IAPErrorType.Unknown;

            errorMessage = errorMessage.ToLowerInvariant();

            if (errorMessage.Contains("usercancelled") || errorMessage.Contains("user cancelled"))
                return IAPErrorType.UserCancelled;
            if (errorMessage.Contains("paymentdeclined") || errorMessage.Contains("payment declined"))
                return IAPErrorType.PaymentDeclined;
            if (errorMessage.Contains("insufficientfunds") || errorMessage.Contains("insufficient funds"))
                return IAPErrorType.InsufficientFunds;
            if (errorMessage.Contains("productunavailable") || errorMessage.Contains("product unavailable"))
                return IAPErrorType.ProductUnavailable;
            if (errorMessage.Contains("duplicatetransaction") || errorMessage.Contains("duplicate transaction"))
                return IAPErrorType.DuplicateTransaction;
            if (errorMessage.Contains("networkerror") || errorMessage.Contains("network error"))
                return IAPErrorType.NetworkError;
            if (errorMessage.Contains("networkunavailable") || errorMessage.Contains("network unavailable"))
                return IAPErrorType.NetworkUnavailable;
            if (errorMessage.Contains("InvalidProductID".ToLowerInvariant()) )
                return IAPErrorType.InvalidProductID;
            if (errorMessage.Contains("IAPInitFailed".ToLowerInvariant()))
                return IAPErrorType.IAPInitFailed;

            return IAPErrorType.Unknown;
        }
    }
}