using Newtonsoft.Json;

namespace NewPdaSqlServer.Dto.Simple;

/// <summary>
///     统一返回结果封装 - 与Java版本完全兼容
///     字段名使用code/msg/count/data以保持前端兼容
/// </summary>
/// <typeparam name="T">数据类型</typeparam>
public class ResultDto<T>
{
    /// <summary>
    ///     状态码: 0=成功, 500=失败
    /// </summary>
    [JsonProperty("code")]
    public int Code { get; set; }

    /// <summary>
    ///     返回消息
    /// </summary>
    [JsonProperty("msg")]
    public string? Msg { get; set; }

    /// <summary>
    ///     返回的数据
    /// </summary>
    [JsonProperty("data")]
    public T? Data { get; set; }

    /// <summary>
    ///     数据总数
    /// </summary>
    [JsonProperty("count")]
    public int Count { get; set; }

    /// <summary>
    ///     成功返回
    /// </summary>
    /// <param name="data">数据</param>
    /// <param name="count">数据总数</param>
    /// <returns>成功结果</returns>
    public static ResultDto<T> Ok(T data, int count)
    {
        return new ResultDto<T>
        {
            Code = 0,
            Msg = "请求成功",
            Data = data,
            Count = count
        };
    }

    /// <summary>
    ///     失败返回
    /// </summary>
    /// <param name="message">错误信息</param>
    /// <returns>失败结果</returns>
    public static ResultDto<T> Error(string message)
    {
        return new ResultDto<T>
        {
            Code = 500,
            Msg = message,
            Data = default,
            Count = 0
        };
    }
}