package com.stylefeng.guns.modular.system.model.vo;

import com.stylefeng.guns.modular.system.model.UserInfo;
import lombok.Data;

import java.math.BigDecimal;
import java.util.Date;
import java.util.Random;

/**
 * 余额修改记录
 *
 * @author Lux
 * @version 1.0.0
 * @since 2026/6/23 15:06
 */
@Data
public class BalanceModifyRecordVo {

    private Integer id;

    /**
     * 流水ID
     */
    private String recordID;

    /**
     * 用户名称
     */
    private String userName;

    /**
     * 用户手机号
     */
    private String phone;

    /**
     * 用户id
     */
    private Integer userId;

    /**
     * 1=增加，2=减少
     */
    private Integer type;

    /**
     * '添加时间'
     */
    private Date createTime;

    /**
     * '金额'
     */
    private BigDecimal money;

    public static BalanceModifyRecordVo convert(UserInfo oldUser, UserInfo newUser) {
        Random random = new Random();
        StringBuilder result = new StringBuilder();
        for (int i = 0; i < 8; i++) {
            result.append(random.nextInt(10));
        }
        BalanceModifyRecordVo recordVo = new  BalanceModifyRecordVo();
        recordVo.setRecordID(result.toString());
        recordVo.setUserName(newUser.getNickName());
        recordVo.setPhone(newUser.getPhone());
        recordVo.setUserId(newUser.getId());
        recordVo.setCreateTime(new Date());
        BigDecimal newBalance = newUser.getBalance() != null ? BigDecimal.valueOf(newUser.getBalance()) : BigDecimal.ZERO;
        BigDecimal oldBalance = oldUser.getBalance() != null ? BigDecimal.valueOf(oldUser.getBalance()) : BigDecimal.ZERO;
        BigDecimal amount = newBalance.subtract(oldBalance);
        // 判断方向
        if (amount.compareTo(BigDecimal.ZERO) > 0) {
            recordVo.setType(1); // 增加金额(充值)
            recordVo.setMoney(amount);
        } else {
            recordVo.setType(2);  // 减少金额，转为正数（消费）
            recordVo.setMoney(amount.abs());
        }
        return recordVo;
    }
}