package com.matrix.system.shopXcx.api.service;
|
|
import com.matrix.component.redis.RedisUserLoginUtils;
|
import com.matrix.core.tools.LogUtil;
|
import com.matrix.system.common.dao.BusParameterSettingsDao;
|
import com.matrix.system.shopXcx.api.vo.ShopCartBillVo;
|
import com.matrix.system.shopXcx.api.vo.ShopCartVo;
|
import com.matrix.system.shopXcx.bean.ShopCoupon;
|
import com.matrix.system.shopXcx.bean.ShopShoppingCart;
|
import com.matrix.system.shopXcx.dao.ShopShoppingCartDao;
|
import org.apache.commons.collections.CollectionUtils;
|
import org.springframework.beans.factory.annotation.Autowired;
|
import org.springframework.stereotype.Service;
|
|
import java.math.BigDecimal;
|
import java.util.*;
|
|
@Service
|
public class ShoppingCartService {
|
|
@Autowired
|
private ShopShoppingCartDao shoppingCartDao;
|
@Autowired
|
private RedisUserLoginUtils redisUserLoginUtils;
|
|
@Autowired
|
WxShopCouponService shopCouponService;
|
|
|
|
@Autowired
|
BusParameterSettingsDao busParameterSettingsDao;
|
|
//计算购车选中项总价以及优惠金额
|
public ShopCartBillVo buildShopCartBillVo(List<ShopCartVo> cartList) {
|
|
ShopCartBillVo shopCartBillVo = new ShopCartBillVo();
|
|
|
//计算是否存在选中的产品
|
Integer selectCount = 0;
|
//购物车总条数
|
Integer cartCount = 0;
|
|
for (ShopCartVo shopCartVo : cartList) {
|
|
if (shopCartVo.getSubtotal() != null) {
|
shopCartBillVo.setBillTotal(shopCartBillVo.getBillTotal().add(shopCartVo.getSubtotal()));
|
shopCartBillVo.setSrcTotal(shopCartBillVo.getSrcTotal().add(shopCartVo.getSrcPrice()));
|
}
|
|
if (shopCartVo.getCouponPrice() != null) {
|
if (shopCartVo.isSatisfactionCoupon()) {
|
shopCartBillVo.setBillCouponTotal(shopCartBillVo.getBillCouponTotal().add(shopCartVo.getCouponPrice()));
|
}
|
}
|
for (ShopShoppingCart shopCart : shopCartVo.getCartList()) {
|
if (shopCart.getIsSelected() == 1) {
|
selectCount += shopCart.getCartNumber();
|
}
|
cartCount += shopCart.getCartNumber();
|
}
|
}
|
shopCartBillVo.setCartCount(cartCount);
|
shopCartBillVo.setSelectCount(selectCount);
|
return shopCartBillVo;
|
}
|
|
|
|
|
/**
|
* 组装购物车优惠信息
|
*
|
* @param list
|
* @return
|
*/
|
@SuppressWarnings("unchecked")
|
public List<ShopCartVo> buildShopCart(List<ShopShoppingCart> list) {
|
|
|
//定义购物车优惠分组
|
List<ShopCartVo> cartList = new ArrayList<>();
|
// 1表示没有优惠的默认分组
|
ShopCartVo def = new ShopCartVo();
|
|
|
|
def.setMsg("商城");
|
def.setCartList(new ArrayList<>());
|
// 组合默认分组
|
cartList.add(def);
|
|
// 记录所有优惠券，一个优惠券（活动）表示一组
|
Map<Integer, ShopCoupon> shopCouponMap = new HashMap<>();
|
|
//查询购物车中的产品匹配上的所有优惠活动
|
for (ShopShoppingCart shoppingCart : list) {
|
|
List<ShopCoupon> shopCoupons = shopCouponService.getHdListByProductId(shoppingCart.getCartProductId());
|
|
if (CollectionUtils.isNotEmpty(shopCoupons)) {
|
// 把所有的优惠券和购物车条目先关联一下,后续可以计算优惠升级的情况
|
shoppingCart.setShopCoupons(shopCoupons);
|
for (ShopCoupon shopCoupon : shopCoupons) {
|
shopCouponMap.put(shopCoupon.getId(), shopCoupon);
|
}
|
} else {
|
// 该产品没有参加优惠券
|
def.getCartList().add(shoppingCart);
|
|
}
|
}
|
|
//计算没有优惠组的价格
|
countPrice(def);
|
|
|
/*
|
* 计算优惠券分组 1、获取到所有的优惠券，从最高满减开始，找寻合适的产品，找到后加入对应的购物车组
|
* 2、计算组内价格，只计算选中状态的
|
*/
|
Set<Integer> keys = shopCouponMap.keySet();
|
List<ShopCoupon> allShopCoupons = new ArrayList<>();
|
for (Integer key : keys) {
|
allShopCoupons.add(shopCouponMap.get(key));
|
}
|
|
//根据优惠力度排序，优惠力度大的先参与计算
|
Collections.sort(allShopCoupons, new Comparator() {
|
@Override
|
public int compare(Object o1, Object o2) {
|
ShopCoupon e1 = (ShopCoupon) o1;
|
ShopCoupon e2 = (ShopCoupon) o2;
|
return e2.getMinAmount().compareTo(e1.getMinAmount());
|
}
|
});
|
|
|
// 进行购物车和优惠券的匹配，匹配成功的加入到优惠组中，
|
for (int i = 0; i < allShopCoupons.size(); i++) {
|
ShopCoupon shopCoupon = allShopCoupons.get(i);
|
ShopCartVo shopCarVo = new ShopCartVo();
|
shopCarVo.setCoupon(shopCoupon);
|
shopCarVo.setCartList(new ArrayList<>());
|
cartList.add(i, shopCarVo);
|
|
// 获取所有购物车条目
|
for (ShopShoppingCart shoppingCart : list) {
|
|
// 如果匹配到的产品已经出现在其他优惠组中，则需要判断是否移除之前的组
|
boolean needRemove = false;
|
|
// 判断当前购物车条目是否已经在合适的组里了
|
if (isInGroupAndSatisfaction(shoppingCart, cartList)) {
|
continue;
|
|
} else if (isInGroupNotSatisfaction(shoppingCart, cartList)) {
|
needRemove = true;
|
}
|
|
List<ShopCoupon> cartCouons = shoppingCart.getShopCoupons();
|
if (cartCouons != null) {
|
// 获取每个购物车条目满足的优惠
|
for (ShopCoupon cartCouon : cartCouons) {
|
if (cartCouon.getId().equals(shopCoupon.getId())) {
|
//匹配成功，加入本组
|
LogUtil.debug("购物车" + shoppingCart.getName() + "和优惠券" + cartCouon.getCName() + "匹配");
|
if (needRemove) {
|
removeNotSatisfaction(shoppingCart, cartList);
|
}
|
shopCarVo.getCartList().add(shoppingCart);
|
break;
|
}
|
}
|
}
|
|
}
|
|
// 计算本组优惠券是否已经满足优惠条件
|
countPrice(shopCarVo);
|
}
|
|
|
// 因为有些优惠中可能没有产品，所以要去除cartList中没有产品的分组
|
List<ShopCartVo> cartListCopy = new ArrayList<>();
|
for (ShopCartVo shopCartVo : cartList) {
|
if (CollectionUtils.isNotEmpty(shopCartVo.getCartList())) {
|
cartListCopy.add(shopCartVo);
|
}
|
}
|
return cartListCopy;
|
}
|
|
/**
|
* 购车条目在组中并且组是否已经满足优惠的
|
*
|
* @param shopShoppingCart
|
* @param cartList
|
* @return
|
*/
|
private boolean isInGroupAndSatisfaction(ShopShoppingCart shopShoppingCart, List<ShopCartVo> cartList) {
|
boolean result = false;
|
for (ShopCartVo cartVo : cartList) {
|
if (cartVo.isSatisfactionCoupon() && cartVo.getCartList().contains(shopShoppingCart)) {
|
result = true;
|
}
|
}
|
return result;
|
}
|
|
/**
|
* 购物车条目在组中，但是组中产品没有达到优惠条件
|
*
|
* @param shopShoppingCart
|
* @param cartList
|
* @return
|
*/
|
private boolean isInGroupNotSatisfaction(ShopShoppingCart shopShoppingCart, List<ShopCartVo> cartList) {
|
boolean result = false;
|
for (ShopCartVo cartVo : cartList) {
|
if (!cartVo.isSatisfactionCoupon() && cartVo.getCartList().contains(shopShoppingCart)) {
|
result = true;
|
}
|
}
|
return result;
|
}
|
|
/**
|
* 删除购物车条目所在分组中的引用
|
*
|
* @param shopShoppingCart
|
* @param cartList
|
*/
|
private void removeNotSatisfaction(ShopShoppingCart shopShoppingCart, List<ShopCartVo> cartList) {
|
for (ShopCartVo cartVo : cartList) {
|
if (cartVo.getCartList().remove(shopShoppingCart)) {
|
LogUtil.debug("删除购物车所在组" + cartVo.getCoupon().getCName() + "," + shopShoppingCart.getName());
|
}
|
}
|
}
|
|
/**
|
* 计算购物车价格和优惠信息
|
*
|
* @author JIANGYOUYAO
|
* @email 935090232@qq.com
|
* @date 2019年8月27日
|
*/
|
private void countPrice(ShopCartVo shopCartVo) {
|
List<ShopShoppingCart> cartList = shopCartVo.getCartList();
|
// 计算总价
|
BigDecimal sum = BigDecimal.ZERO;
|
// 选中项总价
|
BigDecimal selectSum = BigDecimal.ZERO;
|
for (ShopShoppingCart shopShoppingCart : cartList) {
|
sum = sum.add(shopShoppingCart.getPrice().multiply(BigDecimal.valueOf(shopShoppingCart.getCartNumber())));
|
if (shopShoppingCart.getIsSelected() == 1) {
|
if(shopShoppingCart.getCartType()==ShopShoppingCart.CAR_TYPE_MICRO){
|
selectSum = selectSum
|
.add(shopShoppingCart.getPrice().multiply(BigDecimal.valueOf(shopShoppingCart.getCartNumber())));
|
}else {
|
selectSum = selectSum
|
.add(shopShoppingCart.getScorePrice().multiply(BigDecimal.valueOf(shopShoppingCart.getCartNumber())));
|
}
|
|
}
|
}
|
|
if (shopCartVo.getCoupon() != null) {
|
// 存在优惠券
|
if (sum.compareTo(shopCartVo.getCoupon().getMinAmount()) >= 0) {
|
//标记为合理分组
|
shopCartVo.setSatisfactionCoupon(true);
|
if (selectSum.compareTo(shopCartVo.getCoupon().getMinAmount()) >= 0) {
|
shopCartVo.setSubtotal(selectSum.subtract(shopCartVo.getCoupon().getOffsetAmount()));
|
shopCartVo.setSrcPrice(selectSum);
|
shopCartVo.setCouponPrice(shopCartVo.getCoupon().getOffsetAmount());
|
shopCartVo.setMsg(shopCartVo.getCoupon().getCName() + ",已优惠"
|
+ shopCartVo.getCoupon().getOffsetAmount().stripTrailingZeros().toPlainString() + "元");
|
}
|
}
|
if (selectSum.compareTo(shopCartVo.getCoupon().getMinAmount()) < 0) {
|
shopCartVo.setSatisfactionCoupon(false);
|
shopCartVo.setSubtotal(selectSum);
|
shopCartVo.setSrcPrice(selectSum);
|
shopCartVo.setMsg(shopCartVo.getCoupon().getCName());
|
if (selectSum.doubleValue() > 0) {
|
shopCartVo.setMsg(shopCartVo.getCoupon().getCName() + ",再买"
|
+ (shopCartVo.getCoupon().getMinAmount().subtract(selectSum)).stripTrailingZeros()
|
.toPlainString()
|
+ "元立减" + shopCartVo.getCoupon().getOffsetAmount().stripTrailingZeros().toPlainString()
|
+ "元");
|
}
|
}
|
} else {
|
shopCartVo.setSubtotal(selectSum);
|
shopCartVo.setSrcPrice(selectSum);
|
shopCartVo.setSatisfactionCoupon(true);
|
}
|
}
|
}
|
