fuint-application/application-service/src/main/java/com/fuint/application/service/cart/CartServiceImpl.java

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package com.fuint.application.service.cart;

import com.fuint.application.dao.entities.MtCart;
import com.fuint.application.dao.entities.MtGoodsSku;
import com.fuint.application.dao.repositories.MtCartRepository;
import com.fuint.application.dao.repositories.MtGoodsSkuRepository;
import org.springframework.data.jpa.domain.Specification;
import com.fuint.exception.BusinessCheckException;
import com.fuint.application.enums.StatusEnum;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Service;
import java.util.*;

/**
 * 购物车业务实现类
 * Created by FSQ
 * Contact wx fsq_better
 * Site https://www.fuint.cn
 */
@Service
public class CartServiceImpl implements CartService {

    @Autowired
    private MtCartRepository cartRepository;

    @Autowired
    private MtGoodsSkuRepository goodsSkuRepository;

    /**
     * 保存购物车
     *
     * @param reqDto
     * @throws BusinessCheckException
     */
    @Override
    public Integer saveCart(MtCart reqDto, String action) throws BusinessCheckException {
        MtCart mtCart = new MtCart();
        Integer cartId = 1;

        if (reqDto.getGoodsId() > 0) {
            mtCart.setGoodsId(reqDto.getGoodsId());
        }
        if (reqDto.getUserId() > 0) {
            mtCart.setUserId(reqDto.getUserId());
        }

        // 数量为0，删除购物车
        if (reqDto.getNum() == 0 && reqDto.getId() > 0) {
            this.removeCart(reqDto.getId()+"");
        } else if (reqDto.getNum() == 0 && action.equals("-")) {
            cartRepository.deleteCartItem(reqDto.getUserId(), reqDto.getGoodsId(), reqDto.getSkuId());
        }

        // 校验skuId是否正确
        if (reqDto.getSkuId() != null) {
            if (reqDto.getSkuId() > 0) {
                Map<String, Object> param = new HashMap<>();
                param.put("EQ_goodsId", reqDto.getGoodsId().toString());
                param.put("EQ_id", reqDto.getSkuId().toString());