namespace IchniOnline.Online.Network.Models
{
    using System;

    [System.Serializable]
    public enum ResponseCode
    {
        Ok = 10000,
        BadRequest = 10400,
        Unauthorized = 10401,
        Forbidden = 10403,
        NotFound = 10404,
        InternalServerError = 10500
    }

    /// <summary>
    /// Non-generic base class for Unity JsonUtility deserialization.
    /// Concrete generic GlobalResponse<T> inherits from this.
    /// </summary>
    [System.Serializable]
    public abstract class GlobalResponseBase
    {
        public ResponseCode Code;
        public string Message;
    }

    /// <summary>
    /// Generic server response wrapper. JsonUtility can deserialize this to the base class,
    /// then cast to the concrete type for Data access.
    /// </summary>
    /// <typeparam name="T">Data payload type</typeparam>
    [System.Serializable]
    public class GlobalResponse<T> : GlobalResponseBase
    {
        public T Data;
    }

    /// <summary>
    /// Unified API result wrapper with factory methods.
    /// Note: JsonUtility doesn't support generic deserialization directly,
    /// so use GlobalResponseBase for deserialization then wrap in ApiResult.
    /// </summary>
    /// <typeparam name="T">Data payload type</typeparam>
    [System.Serializable]
    public class ApiResult<T>
    {
        public bool IsSuccess => Code == ResponseCode.Ok;
        public T Data { get; private set; }
        public ResponseCode Code { get; private set; }
        public string Message { get; private set; }
        public string ErrorDetail { get; private set; }

        private ApiResult() { }

        public static ApiResult<T> Ok(T data)
        {
            return new ApiResult<T>
            {
                Data = data,
                Code = ResponseCode.Ok,
                Message = "Success",
                ErrorDetail = null
            };
        }

        public static ApiResult<T> Fail(ResponseCode code, string message, string detail = null)
        {
            return new ApiResult<T>
            {
                Data = default(T),
                Code = code,
                Message = message,
                ErrorDetail = detail
            };
        }

        public static ApiResult<T> Fail(int code, string message, string detail = null)
        {
            return Fail((ResponseCode)code, message, detail);
        }
    }
}