/**
 *
 */
package com.poyee.dto;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;

import java.io.Serializable;

/**
 * 控制层统一返回数据格式
 *
 * @author poyee
 *
 */
@Data
@AllArgsConstructor
@NoArgsConstructor
@Accessors(chain = true)
public class ResultDTO implements Serializable {
	/** 状态码 成功: 0 */
	public static final int RESPCODE_SUCCESS = 0;
	/** 状态码 失败: 1 */
	public static final int RESPCODE_FAILURE = 1;
	/** 权限不足 */
	public static final int RESPCODE_NO_AUTH = -1;
	/**返回成功信息*/
	public static final String MSG_SUCCESS = "OK";
	/** 失败信息FAIL */
	public static final String MSG_FAIL = "FAIL";
	/**权限不足返回信息*/
	public static final String MSG_NO_AUTH = "权限不足";

	/** 返回码 */
	private int code;
	/** 返回信息 */
	private String msg;
	/** 返回数据 */
	private Object data;
	/** 时间戳 */
	private Long timestamp=System.currentTimeMillis();

	public ResultDTO(int code, String msg, Object data) {
		this.code = code;
		this.msg = msg;
		this.data = data;
	}

	/**
	 * 构造错误result
	 *
	 * @return
	 */
	public static ResultDTO buildErrorResult() {
		return new ResultDTO(RESPCODE_FAILURE, MSG_FAIL, null);
	}

	/**
	 * 构造空result
	 *
	 * @return 200 ok
	 */
	public static ResultDTO buildEmptySuccess() {
		return new ResultDTO(RESPCODE_SUCCESS, MSG_SUCCESS, null);
	}

	/**
	 * 构造错误result
	 *
	 * @return
	 */
	public static ResultDTO buildErrorResult(String msg) {
		return new ResultDTO(RESPCODE_FAILURE, msg, null);
	}


	public static ResultDTO buildErrorResult(int code,String msg) {
		return new ResultDTO(code, msg, null);
	}

	public static ResultDTO build500Error(String msg) {
		return new ResultDTO(500, msg, null);
	}

	public static ResultDTO buildSuccessResult(Object o) {
		return new ResultDTO(RESPCODE_SUCCESS, MSG_SUCCESS, o);
	}

}