package com.aps.common.util;


import com.fasterxml.jackson.annotation.JsonFormat;
import io.swagger.v3.oas.annotations.media.Schema;
import lombok.*;
import lombok.experimental.Accessors;

import java.io.Serializable;
import java.time.LocalDateTime;


@Builder
@ToString
@Accessors(chain = true)
@AllArgsConstructor
public class R<T> implements Serializable {
    private static final long serialVersionUID = 1L;

    @Schema(description = "code码，通常为200为正常，500为异常，其它code码见异常对照表,为规范code码报错异常操作。所有异常报错码以数据表映射相关")
    @Getter
    @Setter
    private int code = 200;

    @Getter
    @Setter
    @Schema(description = "返回code码为200 时， 默认为success，其它的情况为具体的消息")
    private String msg = "success";

    @Getter
    @Setter
    @Schema(description = "业务返回具体的数据", example = "示例值有很多，不一一列举")
    private T data;

    @Getter
    @Setter
    @Schema(description = "接口返回时间，默认带有毫秒数值,用于数据排查问题")
    @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'")
    private LocalDateTime timestamp = LocalDateTime.now();

    public static <T> R<T> ok() {
        return restResult(null, 200, "success");
    }

    public static <T> R<T> ok(T data) {
        return restResult(data, 200, "success");
    }

    public static <T> R<T> ok(T data, String msg) {
        return restResult(data, 200, msg);
    }

    public static <T> R<T> failed() {
        return restResult(null, 500, "error");
    }

    public static <T> R<T> failed(String msg) {
        return restResult(null, 500, msg);
    }

    public static <T> R<T> failed(T data) {
        return restResult(data, 500, "error");
    }

    public static <T> R<T> failed(T data, String msg) {
        return restResult(data, 500, msg);
    }

    public static <T> R<T> failed(int code, String msg) {
        return restResult(null, code, msg);
    }

    public static <T> R<T> failed(T data, int code) {
        return restResult(data, code, null);
    }

    public static <T> R<T> failed(T data, int code, String msg) {
        return restResult(data, code, msg);
    }

    public R() {
        super();
    }

    public R(T data) {
        super();
        this.data = data;
    }

    public R(T data, String msg) {
        super();
        this.data = data;
        this.msg = msg;
    }

    public R(Throwable e) {
        super();
        this.msg = ExceptionMessageUtil.toClientMessage(e, "系统异常，请联系管理员");
        this.code = 500;
    }

    private static <T> R<T> restResult(T data, int code, String msg) {
        R<T> apiResult = new R<>();
        apiResult.setCode(code);
        apiResult.setData(data);
        apiResult.setMsg(msg);
        return apiResult;
    }

    /**
     * 判断是否成功
     *
     * @return
     */
    public boolean is() {
        return this.code ==200;
    }
}
