Cis/Cis.Core/Util/RespParamProvider.cs

namespace Cis.Core;

/// <summary>
/// 全局规范化结果
/// </summary>
[UnifyModel(typeof(RespParam<>))]
public class RespParamProvider : IUnifyResultProvider
{
	/// <summary>
	/// 异常返回值
	/// </summary>
	/// <param name="context"></param>
	/// <param name="metadata"></param>
	/// <returns></returns>
	public IActionResult OnException(ExceptionContext context, ExceptionMetadata metadata)
	{
		return new JsonResult(RESTfulResult(metadata.StatusCode, data: metadata.Data, errors: metadata.Errors));
	}

	/// <summary>
	/// 成功返回值
	/// </summary>
	/// <param name="context"></param>
	/// <param name="data"></param>
	/// <returns></returns>
	public IActionResult OnSucceeded(ActionExecutedContext context, object data)
	{
		return new JsonResult(RESTfulResult(StatusCodes.Status200OK, true, data));
	}

	/// <summary>
	/// 验证失败返回值
	/// </summary>
	/// <param name="context"></param>
	/// <param name="metadata"></param>
	/// <returns></returns>
	public IActionResult OnValidateFailed(ActionExecutingContext context, ValidationMetadata metadata)
	{
		return new JsonResult(RESTfulResult(metadata.StatusCode ?? StatusCodes.Status400BadRequest, data: metadata.Data, errors: metadata.ValidationResult));
	}

	/// <summary>
	/// 特定状态码返回值
	/// </summary>
	/// <param name="context"></param>
	/// <param name="statusCode"></param>
	/// <param name="unifyResultSettings"></param>
	/// <returns></returns>
	public async Task OnResponseStatusCodes(HttpContext context, int statusCode, UnifyResultSettingsOptions unifyResultSettings)
	{
		// 设置响应状态码
		UnifyContext.SetResponseStatusCodes(context, statusCode, unifyResultSettings);

		switch (statusCode)
		{
			// 处理 401 状态码
			case StatusCodes.Status401Unauthorized:
				await context.Response.WriteAsJsonAsync(RESTfulResult(statusCode, errors: "401 登录已过期，请重新登录"),
					App.GetOptions<JsonOptions>()?.JsonSerializerOptions);
				break;
			// 处理 403 状态码
			case StatusCodes.Status403Forbidden:
				await context.Response.WriteAsJsonAsync(RESTfulResult(statusCode, errors: "403 禁止访问，没有权限"),
					App.GetOptions<JsonOptions>()?.JsonSerializerOptions);
				break;

			default: break;
		}
	}

	/// <summary>
	/// 返回 RESTful 风格结果集
	/// </summary>
	/// <param name="statusCode"></param>
	/// <param name="succeeded"></param>
	/// <param name="data"></param>
	/// <param name="errors"></param>
	/// <returns></returns>
	private static RespParam<object> RESTfulResult(int statusCode, bool succeeded = default, object data = default, object errors = default)
	{
		return new RespParam<object>
		{
			Code = statusCode,
			Message = errors is string str ? str : JSON.Serialize(errors),
			Data = data,
			Type = succeeded ? "success" : "error",
			Extras = UnifyContext.Take(),
			Timestamp = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds()
		};
	}
}

/// <summary>
/// 全局返回结果
/// </summary>
/// <typeparam name="T"></typeparam>
public class RespParam<T>
{
	/// <summary>
	/// 状态码
	/// </summary>
	public int Code { get; set; }

	/// <summary>
	/// 类型success、warning、error
	/// </summary>
	public string Type { get; set; }

	/// <summary>
	/// 错误信息
	/// </summary>
	public string Message { get; set; }

	/// <summary>
	/// 数据
	/// </summary>
	public T Data { get; set; }

	/// <summary>
	/// 附加数据
	/// </summary>
	public object Extras { get; set; }

	/// <summary>
	/// 时间戳
	/// </summary>
	public long Timestamp { get; set; }
}