package com.hz.his.vo.project;

import lombok.Data;

import java.math.BigDecimal;
import java.math.RoundingMode;

/**
 * SKU抵扣数据
 */
@Data
public class SkuDeductionVo {
    /**sku标识*/
    private String skuId;
    /**sku最大可抵扣现金金额*/
    private BigDecimal maxCash = BigDecimal.ZERO;
    /**sku抵扣最大现金金额需要支付的积分*/
    private BigDecimal maxIntegralCash = BigDecimal.ZERO;

    /**总单购买项目数量*/
    private Integer totalBuyNum = 0;
    /**项目数量占总单比*/
    private BigDecimal skuNumRate = BigDecimal.ZERO;
    /**子单购买数量*/
    private Integer buyNum = 0;
    /**子单现价x数量算出的总金额*/
    private BigDecimal skuPrice = BigDecimal.ZERO;
    /**子单可抵扣最大现金金额*/
    private BigDecimal skuMaxCash = BigDecimal.ZERO;

    /**剩余可分配*/
    private BigDecimal cash = BigDecimal.ZERO;

    /**
     * 计算抵扣金额
     * */
    public void handlerMoney() {
        //计算子单最大可抵扣
        this.skuMaxCash = this.maxCash.multiply(new BigDecimal(this.buyNum));
        //默认赋值cash
        handlerCash(BigDecimal.ZERO);
    }

    /**计算数量*/
    public void handlerNum(Integer totalBuyNum) {
        this.totalBuyNum = totalBuyNum;
        if (totalBuyNum != 0){
            this.skuNumRate = new BigDecimal(this.buyNum).divide(new BigDecimal(this.totalBuyNum),2,RoundingMode.HALF_UP);
        }
    }

    /**计算数量*/
    public void handlerCash(BigDecimal totalMoney) {
        this.cash = this.skuMaxCash.subtract(totalMoney).setScale(2,RoundingMode.HALF_UP);
    }
}