116 lines
4.5 KiB
Java
116 lines
4.5 KiB
Java
package com.gxwebsoft.shop.service.impl;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.gxwebsoft.common.core.web.PageParam;
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import com.gxwebsoft.common.core.web.PageResult;
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import com.gxwebsoft.shop.entity.Cashier;
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import com.gxwebsoft.shop.mapper.CashierMapper;
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import com.gxwebsoft.shop.param.CashierParam;
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import com.gxwebsoft.shop.service.CashierService;
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import com.gxwebsoft.shop.vo.CashierVo;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.math.BigDecimal;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import java.util.stream.Collectors;
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/**
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* 收银Service实现
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*
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* @author 科技小王子
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* @since 2024-08-04 11:51:43
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*/
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@Service
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public class CashierServiceImpl extends ServiceImpl<CashierMapper, Cashier> implements CashierService {
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@Override
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public PageResult<Cashier> pageRel(CashierParam param) {
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PageParam<Cashier, CashierParam> page = new PageParam<>(param);
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page.setDefaultOrder("create_time desc");
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List<Cashier> list = baseMapper.selectPageRel(page, param);
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return new PageResult<>(list, page.getTotal());
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}
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@Override
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@Transactional(rollbackFor = {Exception.class})
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public CashierVo listRel(CashierParam param) {
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List<Cashier> list = baseMapper.selectListRel(param);
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// 排序
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PageParam<Cashier, CashierParam> page = new PageParam<>();
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page.setDefaultOrder("create_time desc");
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final List<Cashier> cashiers = page.sortRecords(list);
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// 整理数据
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final CashierVo vo = new CashierVo();
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// 计算单品总价
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for (Cashier cashier : cashiers) {
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cashier.setTotalPrice(cashier.getPrice().multiply(BigDecimal.valueOf(cashier.getCartNum())));
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}
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// 计算购物车金额
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final Integer cartNum = cashiers.stream().map(Cashier::getCartNum).reduce(Integer::sum).orElse(0);
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final Integer selectNums = cashiers.stream().filter(d -> d.getSelected().equals(true)).map(Cashier::getCartNum).reduce(Integer::sum).orElse(0);
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final BigDecimal totalPrice = cashiers.stream().filter(d -> d.getSelected().equals(true)).map(Cashier::getTotalPrice).reduce(BigDecimal.ZERO, BigDecimal::add);
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// 封装数据
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vo.setCashiers(cashiers);
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vo.setTotalPrice(totalPrice);
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vo.setTotalNums(Long.valueOf(cartNum));
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vo.setSelectNums(Long.valueOf(selectNums));
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return vo;
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}
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@Override
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@Transactional(rollbackFor = {Exception.class})
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public List<CashierVo> listRelByGroupId(CashierParam param) {
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List<Cashier> list = baseMapper.selectListRel(param);
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// 排序
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PageParam<Cashier, CashierParam> page = new PageParam<>();
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page.setDefaultOrder("create_time desc");
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final List<Cashier> cashiers = page.sortRecords(list);
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// 计算单品总价
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cashiers.forEach(d->{
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d.setTotalPrice(d.getPrice().multiply(BigDecimal.valueOf(d.getCartNum())));
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});
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final Map<Integer, List<Cashier>> collectByGroupId = cashiers.stream().collect(Collectors.groupingBy(Cashier::getGroupId));
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// 整理数据
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final ArrayList<CashierVo> cashierVos = new ArrayList<>();
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for (Integer groupId : collectByGroupId.keySet()) {
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final CashierVo vo = new CashierVo();
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final List<Cashier> cashierList = collectByGroupId.get(groupId);
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for (Cashier cashier : cashierList) {
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if (cashier.getGroupId().equals(groupId)) {
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// 计算购物车金额
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final Integer cartNum = cashierList.stream().map(Cashier::getCartNum).reduce(Integer::sum).orElse(0);
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final Integer selectNums = cashierList.stream().filter(d -> d.getSelected().equals(true)).map(Cashier::getCartNum).reduce(Integer::sum).orElse(0);
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final BigDecimal totalPrice = cashierList.stream().filter(d -> d.getSelected().equals(true)).map(Cashier::getTotalPrice).reduce(BigDecimal.ZERO, BigDecimal::add);
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vo.setGroupId(Long.valueOf(groupId));
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vo.setCashiers(cashierList);
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vo.setTotalPrice(totalPrice);
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vo.setTotalNums(Long.valueOf(cartNum));
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vo.setSelectNums(Long.valueOf(selectNums));
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vo.setComments("订单备注：");
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}
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}
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cashierVos.add(vo);
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}
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return cashierVos;
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}
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@Override
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public Cashier getByIdRel(Integer id) {
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CashierParam param = new CashierParam();
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param.setId(id);
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return param.getOne(baseMapper.selectListRel(param));
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}
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}
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