package cn.lili.modules.order.cart.render.impl;
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import cn.hutool.json.JSONObject;
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import cn.hutool.json.JSONUtil;
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import cn.lili.cache.Cache;
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import cn.lili.common.enums.PromotionTypeEnum;
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import cn.lili.common.enums.ResultCode;
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import cn.lili.common.exception.ServiceException;
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import cn.lili.common.security.context.UserContext;
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import cn.lili.common.utils.CurrencyUtil;
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import cn.lili.modules.member.entity.dos.Member;
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import cn.lili.modules.member.service.MemberService;
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import cn.lili.modules.order.cart.entity.dto.TradeDTO;
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import cn.lili.modules.order.cart.entity.enums.RenderStepEnums;
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import cn.lili.modules.order.cart.entity.vo.CartSkuVO;
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import cn.lili.modules.order.cart.entity.vo.CartVO;
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import cn.lili.modules.order.cart.render.CartRenderStep;
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import cn.lili.modules.order.order.entity.dto.DiscountPriceItem;
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import cn.lili.modules.order.order.entity.dto.PriceDetailDTO;
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import cn.lili.modules.promotion.entity.dto.search.KanjiaActivitySearchParams;
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import cn.lili.modules.promotion.entity.enums.KanJiaStatusEnum;
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import cn.lili.modules.promotion.entity.vos.PromotionSkuVO;
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import cn.lili.modules.promotion.entity.vos.kanjia.KanjiaActivityVO;
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import cn.lili.modules.promotion.service.KanjiaActivityGoodsService;
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import cn.lili.modules.promotion.service.KanjiaActivityService;
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import cn.lili.modules.promotion.service.PointsGoodsService;
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import cn.lili.modules.promotion.service.PromotionGoodsService;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import java.util.List;
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import java.util.Map;
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import java.util.Objects;
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/**
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* 购物促销信息渲染实现
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*
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* @author Chopper
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* @since 2020-07-02 14:47
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*/
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@Service
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public class SkuPromotionRender implements CartRenderStep {
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@Autowired
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private KanjiaActivityService kanjiaActivityService;
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@Autowired
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private KanjiaActivityGoodsService kanjiaActivityGoodsService;
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@Autowired
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private PointsGoodsService pointsGoodsService;
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/**
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* 促销商品
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*/
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@Autowired
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private PromotionGoodsService promotionGoodsService;
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@Autowired
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private MemberService memberService;
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@Autowired
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private Cache cache;
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@Override
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public RenderStepEnums step() {
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return RenderStepEnums.SKU_PROMOTION;
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}
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@Override
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public void render(TradeDTO tradeDTO) {
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//基础价格渲染
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renderBasePrice(tradeDTO);
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//渲染单品促销
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renderSkuPromotion(tradeDTO);
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//检查促销库存
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checkPromotionQuantity(tradeDTO);
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}
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/**
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* 基础价格渲染
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*
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* @param tradeDTO
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*/
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private void renderBasePrice(TradeDTO tradeDTO) {
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tradeDTO.getCartList().forEach(
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cartVO -> cartVO.getCheckedSkuList().forEach(cartSkuVO -> {
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PriceDetailDTO priceDetailDTO = cartSkuVO.getPriceDetailDTO();
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priceDetailDTO.setGoodsPrice(cartSkuVO.getSubTotal());
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priceDetailDTO.setDiscountPrice(CurrencyUtil.sub(priceDetailDTO.getOriginalPrice(), cartSkuVO.getSubTotal()));
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})
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);
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}
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/**
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* 渲染单品优惠 积分/拼团/秒杀/砍价
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*
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* @param tradeDTO 购物车视图
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*/
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private void renderSkuPromotion(TradeDTO tradeDTO) {
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switch (tradeDTO.getCartTypeEnum()) {
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//这里是双重循环，但是实际积分购买或者是砍价购买时，购物车只有一个商品，所以没有循环操作数据库或者其他的问题
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case POINTS:
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Member userInfo = memberService.getUserInfo();
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long totalPayPoints = 0;
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//处理积分商品购买
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for (CartVO cartVO : tradeDTO.getCartList()) {
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for (CartSkuVO cartSkuVO : cartVO.getCheckedSkuList()) {
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cartSkuVO.getPriceDetailDTO().setPayPoint(cartSkuVO.getPoint());
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PromotionSkuVO promotionSkuVO = new PromotionSkuVO(PromotionTypeEnum.POINTS_GOODS.name(), cartSkuVO.getPointsId());
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cartSkuVO.getPriceDetailDTO().getJoinPromotion().add(promotionSkuVO);
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totalPayPoints += cartSkuVO.getPoint();
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//记录优惠由来
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cartSkuVO.getPriceDetailDTO().setDiscountPriceItem(
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DiscountPriceItem.builder()
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.discountPrice(CurrencyUtil.sub(cartSkuVO.getGoodsSku().getPrice(), cartSkuVO.getPurchasePrice()))
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.promotionId(promotionSkuVO.getActivityId())
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.promotionTypeEnum(PromotionTypeEnum.POINTS_GOODS)
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.skuId(cartSkuVO.getGoodsSku().getId())
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.goodsId(cartSkuVO.getGoodsSku().getGoodsId())
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.build()
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);
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}
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}
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if (userInfo.getPoint() < totalPayPoints) {
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throw new ServiceException(ResultCode.POINT_NOT_ENOUGH);
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}
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return;
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case KANJIA:
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for (CartVO cartVO : tradeDTO.getCartList()) {
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for (CartSkuVO cartSkuVO : cartVO.getCheckedSkuList()) {
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KanjiaActivitySearchParams kanjiaActivitySearchParams = new KanjiaActivitySearchParams();
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kanjiaActivitySearchParams.setGoodsSkuId(cartSkuVO.getGoodsSku().getId());
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kanjiaActivitySearchParams.setMemberId(Objects.requireNonNull(UserContext.getCurrentUser()).getId());
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kanjiaActivitySearchParams.setStatus(KanJiaStatusEnum.SUCCESS.name());
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KanjiaActivityVO kanjiaActivityVO = kanjiaActivityService.getKanjiaActivityVO(kanjiaActivitySearchParams);
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//可以砍价金额购买，则处理信息
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if (Boolean.TRUE.equals(kanjiaActivityVO.getPass())) {
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cartSkuVO.setKanjiaId(kanjiaActivityVO.getId());
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cartSkuVO.setPurchasePrice(kanjiaActivityVO.getPurchasePrice());
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cartSkuVO.setSubTotal(kanjiaActivityVO.getPurchasePrice());
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cartSkuVO.getPriceDetailDTO().setGoodsPrice(kanjiaActivityVO.getPurchasePrice());
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}
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PromotionSkuVO promotionSkuVO = new PromotionSkuVO(PromotionTypeEnum.KANJIA.name(), cartSkuVO.getKanjiaId());
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cartSkuVO.getPriceDetailDTO().getJoinPromotion().add(promotionSkuVO);
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//记录优惠由来
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cartSkuVO.getPriceDetailDTO().setDiscountPriceItem(
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DiscountPriceItem.builder()
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.discountPrice(CurrencyUtil.sub(cartSkuVO.getGoodsSku().getPrice(), cartSkuVO.getPurchasePrice()))
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.promotionId(promotionSkuVO.getActivityId())
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.promotionTypeEnum(PromotionTypeEnum.KANJIA)
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.skuId(cartSkuVO.getGoodsSku().getId())
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.goodsId(cartSkuVO.getGoodsSku().getGoodsId())
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.build()
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);
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}
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}
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return;
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case PINTUAN:
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for (CartVO cartVO : tradeDTO.getCartList()) {
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for (CartSkuVO cartSkuVO : cartVO.getCheckedSkuList()) {
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PromotionSkuVO promotionSkuVO = new PromotionSkuVO(PromotionTypeEnum.PINTUAN.name(), cartSkuVO.getPintuanId());
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cartSkuVO.getPriceDetailDTO().getJoinPromotion().add(promotionSkuVO);
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//记录优惠由来
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cartSkuVO.getPriceDetailDTO().setDiscountPriceItem(
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DiscountPriceItem.builder()
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.discountPrice(CurrencyUtil.sub(cartSkuVO.getGoodsSku().getPrice(), cartSkuVO.getPurchasePrice()))
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.promotionId(promotionSkuVO.getActivityId())
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.promotionTypeEnum(PromotionTypeEnum.PINTUAN)
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.skuId(cartSkuVO.getGoodsSku().getId())
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.goodsId(cartSkuVO.getGoodsSku().getGoodsId())
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.build()
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);
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}
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}
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return;
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case CART:
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case BUY_NOW:
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case VIRTUAL:
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//循环购物车
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for (CartVO cartVO : tradeDTO.getCartList()) {
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//循环sku
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for (CartSkuVO cartSkuVO : cartVO.getCheckedSkuList()) {
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//赋予商品促销信息
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for (Map.Entry<String, Object> entry : cartSkuVO.getPromotionMap().entrySet()) {
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if (ignorePromotion(entry.getKey())) {
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continue;
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}
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JSONObject promotionsObj = JSONUtil.parseObj(entry.getValue());
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PromotionSkuVO promotionSkuVO = new PromotionSkuVO(entry.getKey().split("-")[0], promotionsObj.get("id", String.class));
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cartSkuVO.setSubTotal(CurrencyUtil.mul(cartSkuVO.getPurchasePrice(), cartSkuVO.getNum()));
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cartSkuVO.getPriceDetailDTO().setGoodsPrice(cartSkuVO.getSubTotal());
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cartSkuVO.getPriceDetailDTO().getJoinPromotion().add(promotionSkuVO);
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//如果是秒杀活动
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if (promotionSkuVO.getPromotionType().equals(PromotionTypeEnum.SECKILL.name())) {
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//需记录秒杀活动详情
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cartSkuVO.getPriceDetailDTO().setDiscountPriceItem(
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DiscountPriceItem.builder()
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.discountPrice(CurrencyUtil.sub(cartSkuVO.getGoodsSku().getPrice(), cartSkuVO.getPurchasePrice()))
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.promotionId(promotionSkuVO.getActivityId())
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.promotionTypeEnum(PromotionTypeEnum.SECKILL)
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.skuId(cartSkuVO.getGoodsSku().getId())
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.goodsId(cartSkuVO.getGoodsSku().getGoodsId())
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.build());
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}
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}
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}
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}
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return;
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default:
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}
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}
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/**
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* 检查促销库存
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*
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* @param tradeDTO 购物车视图
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*/
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private void checkPromotionQuantity(TradeDTO tradeDTO) {
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for (CartSkuVO cartSkuVO : tradeDTO.getCheckedSkuList()) {
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List<PromotionSkuVO> joinPromotion = cartSkuVO.getPriceDetailDTO().getJoinPromotion();
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if (!joinPromotion.isEmpty()) {
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for (PromotionSkuVO promotionSkuVO : joinPromotion) {
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this.checkPromotionGoodsQuantity(cartSkuVO, promotionSkuVO);
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}
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}
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}
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}
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private void checkPromotionGoodsQuantity(CartSkuVO cartSkuVO, PromotionSkuVO promotionSkuVO) {
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String promotionGoodsStockCacheKey = PromotionGoodsService.getPromotionGoodsStockCacheKey(PromotionTypeEnum.valueOf(promotionSkuVO.getPromotionType()), promotionSkuVO.getActivityId(), cartSkuVO.getGoodsSku().getId());
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Object quantity = cache.get(promotionGoodsStockCacheKey);
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if (quantity == null) {
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//如果促销有库存信息
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PromotionTypeEnum promotionTypeEnum = PromotionTypeEnum.valueOf(promotionSkuVO.getPromotionType());
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switch (promotionTypeEnum) {
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case KANJIA:
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quantity = kanjiaActivityGoodsService.getKanjiaGoodsBySkuId(cartSkuVO.getGoodsSku().getId()).getStock();
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break;
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case POINTS_GOODS:
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quantity = pointsGoodsService.getPointsGoodsDetailBySkuId(cartSkuVO.getGoodsSku().getId()).getActiveStock();
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break;
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case SECKILL:
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case PINTUAN:
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quantity = promotionGoodsService.getPromotionGoodsStock(PromotionTypeEnum.valueOf(promotionSkuVO.getPromotionType()), promotionSkuVO.getActivityId(), cartSkuVO.getGoodsSku().getId());
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break;
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default:
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return;
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}
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}
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if (quantity != null && cartSkuVO.getNum() > (Integer) quantity) {//设置购物车未选中
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cartSkuVO.setChecked(false);
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//设置失效消息
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cartSkuVO.setErrorMessage("促销商品库存不足,现有库存数量[" + quantity + "]");
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}
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}
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/**
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* 购物车促销类型
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*/
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private boolean ignorePromotion(String promotionKey) {
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// 忽略积分活动活动 忽略砍价活动 忽略优惠券活动 忽略拼团活动
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return promotionKey.contains(PromotionTypeEnum.POINTS_GOODS.name())
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|| promotionKey.contains(PromotionTypeEnum.KANJIA.name())
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|| promotionKey.contains(PromotionTypeEnum.COUPON.name())
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|| promotionKey.contains(PromotionTypeEnum.PINTUAN.name());
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}
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}
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