/*
 *      Copyright (c) 2018-2028, Chill Zhuang All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice,
 *  this list of conditions and the following disclaimer.
 *  Redistributions in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in the
 *  documentation and/or other materials provided with the distribution.
 *  Neither the name of the dreamlu.net developer nor the names of its
 *  contributors may be used to endorse or promote products derived from
 *  this software without specific prior written permission.
 *  Author: Chill 庄骞 (smallchill@163.com)
 */
package org.springnewfiber.dataadapter.config;

import cn.hutool.core.util.ObjectUtil;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import lombok.ToString;
import org.springframework.lang.Nullable;

import javax.servlet.http.HttpServletResponse;
import java.io.Serializable;
import java.util.Optional;

/**
 * 统一API响应结果封装
 *
 * @author Chill
 */
@Getter
@Setter
@ToString
@ApiModel(description = "返回信息")
@NoArgsConstructor
public class R<T> implements Serializable {

    private static final long serialVersionUID = 1L;

    @ApiModelProperty(value = "状态码", required = true)
    private int code;
    @ApiModelProperty(value = "是否成功", required = true)
    private boolean success;
    @ApiModelProperty(value = "承载数据")
    private T data;
    @ApiModelProperty(value = "返回消息", required = true)
    private String msg;

    private R(IResultCode resultCode) {
        this(resultCode, null, resultCode.getMessage());
    }

    private R(IResultCode resultCode, String msg) {
        this(resultCode, null, msg);
    }

    private R(IResultCode resultCode, T data) {
        this(resultCode, data, resultCode.getMessage());
    }

    private R(IResultCode resultCode, T data, String msg) {
        this(resultCode.getCode(), data, msg);
    }

    private R(int code, T data, String msg) {
        this.code = code;
        this.data = data;
        this.msg = msg;
        this.success = ResultCode.SUCCESS.code == code;
    }

    /**
     * 判断返回是否为成功
     *
     * @param result Result
     * @return 是否成功
     */
    public static boolean isSuccess(@Nullable R<?> result) {
        return Optional.ofNullable(result)
                .map(x -> ObjectUtil.notEqual(ResultCode.SUCCESS.code, x.code))
                .orElse(Boolean.FALSE);
    }

    /**
     * 判断返回是否为成功
     *
     * @param result Result
     * @return 是否成功
     */
    public static boolean isNotSuccess(@Nullable R<?> result) {
        return !R.isSuccess(result);
    }

    /**
     * 返回R
     *
     * @param data 数据
     * @param <T>  T 泛型标记
     * @return R
     */
    public static <T> R<T> data(T data) {
        return data(data, DEFAULT_SUCCESS_MESSAGE);
    }

    /**
     * 返回R
     *
     * @param data 数据
     * @param msg  消息
     * @param <T>  T 泛型标记
     * @return R
     */
    public static <T> R<T> data(T data, String msg) {
        return data(HttpServletResponse.SC_OK, data, msg);
    }

    /**
     * 返回R
     *
     * @param code 状态码
     * @param data 数据
     * @param msg  消息
     * @param <T>  T 泛型标记
     * @return R
     */
    public static <T> R<T> data(int code, T data, String msg) {
        return new R<>(code, data, data == null ? DEFAULT_NULL_MESSAGE : msg);
    }

    /**
     * 返回R
     *
     * @param msg 消息
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T extends Number> R<T> success(T data, String msg) {
        return new R<T>(ResultCode.SUCCESS, data, msg);
    }

    /**
     * 返回R
     *
     * @param msg 消息
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> success(String msg) {
        return new R<>(ResultCode.SUCCESS, msg);
    }

    /**
     * 返回R
     *
     * @param resultCode 业务代码
     * @param <T>        T 泛型标记
     * @return R
     */
    public static <T> R<T> success(IResultCode resultCode) {
        return new R<>(resultCode);
    }

    /**
     * 返回R
     *
     * @param resultCode 业务代码
     * @param msg        消息
     * @param <T>        T 泛型标记
     * @return R
     */
    public static <T> R<T> success(IResultCode resultCode, String msg) {
        return new R<>(resultCode, msg);
    }

    /**
     * 返回R
     *
     * @param msg 消息
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(String msg) {
        return new R<>(ResultCode.FAILURE, msg);
    }


    /**
     * 返回R
     *
     * @param code 状态码
     * @param msg  消息
     * @param <T>  T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(int code, String msg) {
        return new R<>(code, null, msg);
    }

    /**
     * 返回R
     *
     * @param resultCode 业务代码
     * @param <T>        T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(IResultCode resultCode) {
        return new R<>(resultCode);
    }

    /**
     * 返回R
     *
     * @param resultCode 业务代码
     * @param msg        消息
     * @param <T>        T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(IResultCode resultCode, String msg) {
        return new R<>(resultCode, msg);
    }

    /**
     * 返回R
     *
     * @param flag 成功状态
     * @return R
     */
    public static <T> R<T> status(boolean flag) {
        return flag ? success(DEFAULT_SUCCESS_MESSAGE) : fail(DEFAULT_FAILURE_MESSAGE);
    }

    /**
     * 返回R
     *
     * @param id id
     * @return R
     */
    public static <T extends Number> R<T> status(T id) {
        return Long.parseLong(id.toString()) > 0L ? success(id, DEFAULT_SUCCESS_MESSAGE) : fail(DEFAULT_FAILURE_MESSAGE);
    }

    /**
     * 默认为空消息
     */
    static String DEFAULT_NULL_MESSAGE = "暂无承载数据";
    /**
     * 默认成功消息
     */
    static String DEFAULT_SUCCESS_MESSAGE = "操作成功";
    /**
     * 默认失败消息
     */
    static String DEFAULT_FAILURE_MESSAGE = "操作失败";
}