package cn.iocoder.yudao.module.purchase.service.order;
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import cn.hutool.core.collection.CollUtil;
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import cn.hutool.core.util.StrUtil;
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import cn.iocoder.yudao.framework.common.pojo.PageResult;
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import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
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import cn.iocoder.yudao.module.purchase.controller.admin.order.vo.PurchaseOrderItemSaveReqVO;
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import cn.iocoder.yudao.module.purchase.controller.admin.order.vo.PurchaseOrderPageReqVO;
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import cn.iocoder.yudao.module.purchase.controller.admin.order.vo.PurchaseOrderSaveReqVO;
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import cn.iocoder.yudao.module.purchase.dal.dataobject.order.PurchaseOrderDO;
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import cn.iocoder.yudao.module.purchase.dal.dataobject.order.PurchaseOrderItemDO;
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import cn.iocoder.yudao.module.purchase.dal.mysql.order.PurchaseOrderLineMapper;
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import cn.iocoder.yudao.module.purchase.dal.mysql.order.PurchaseOrderMainMapper;
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import cn.iocoder.yudao.module.purchase.dal.redis.PurchaseNoRedisDAO;
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import jakarta.annotation.Resource;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import org.springframework.validation.annotation.Validated;
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import java.math.BigDecimal;
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import java.math.RoundingMode;
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import java.util.ArrayList;
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import java.util.List;
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import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
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import static cn.iocoder.yudao.module.purchase.enums.ErrorCodeConstants.*;
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/**
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* 采购单 Service 实现类
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*/
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@Service
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@Validated
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@Slf4j
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public class PurchaseOrderServiceImpl implements PurchaseOrderService {
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/** 草稿状态 */
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private static final Integer STATUS_DRAFT = 0;
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@Resource
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private PurchaseOrderMainMapper orderMapper;
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@Resource
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private PurchaseOrderLineMapper itemMapper;
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@Resource
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private PurchaseNoRedisDAO noRedisDAO;
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@Override
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@Transactional(rollbackFor = Exception.class)
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public Long createOrder(PurchaseOrderSaveReqVO reqVO) {
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List<PurchaseOrderItemDO> items = buildItems(null, reqVO.getItems());
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PurchaseOrderDO order = BeanUtils.toBean(reqVO, PurchaseOrderDO.class, in -> in
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.setNo(noRedisDAO.generate(PurchaseNoRedisDAO.ORDER_NO_PREFIX))
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.setStatus(STATUS_DRAFT)
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.setTotalAmount(sumAmount(items)));
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orderMapper.insert(order);
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items.forEach(item -> item.setOrderId(order.getId()));
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itemMapper.insertBatch(items);
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return order.getId();
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public void updateOrder(PurchaseOrderSaveReqVO reqVO) {
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PurchaseOrderDO old = validateOrderExists(reqVO.getId());
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if (!STATUS_DRAFT.equals(old.getStatus())) {
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throw exception(PURCHASE_ORDER_UPDATE_FAIL, old.getNo(), "非草稿");
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}
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List<PurchaseOrderItemDO> items = buildItems(reqVO.getId(), reqVO.getItems());
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PurchaseOrderDO updateObj = BeanUtils.toBean(reqVO, PurchaseOrderDO.class, in -> in
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.setTotalAmount(sumAmount(items)));
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// 单号与状态不允许通过修改接口变更
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updateObj.setNo(null).setStatus(null);
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orderMapper.updateById(updateObj);
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itemMapper.deleteByOrderId(reqVO.getId());
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itemMapper.insertBatch(items);
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public void deleteOrder(Long id) {
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PurchaseOrderDO order = validateOrderExists(id);
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if (!STATUS_DRAFT.equals(order.getStatus())) {
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throw exception(PURCHASE_ORDER_DELETE_FAIL, order.getNo(), "非草稿");
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}
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itemMapper.deleteByOrderId(id);
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orderMapper.deleteById(id);
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}
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@Override
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public PurchaseOrderDO getOrder(Long id) {
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return orderMapper.selectById(id);
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}
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@Override
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public List<PurchaseOrderItemDO> getItemListByOrderId(Long orderId) {
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return itemMapper.selectListByOrderId(orderId);
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}
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@Override
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public PageResult<PurchaseOrderDO> getOrderPage(PurchaseOrderPageReqVO reqVO) {
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return orderMapper.selectPage(reqVO);
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}
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private PurchaseOrderDO validateOrderExists(Long id) {
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PurchaseOrderDO order = id != null ? orderMapper.selectById(id) : null;
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if (order == null) {
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throw exception(PURCHASE_ORDER_NOT_EXISTS);
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}
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return order;
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}
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/** 组装明细：计算每行金额与排序号 */
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private List<PurchaseOrderItemDO> buildItems(Long orderId, List<PurchaseOrderItemSaveReqVO> items) {
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if (CollUtil.isEmpty(items)) {
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throw exception(PURCHASE_ORDER_ITEM_EMPTY);
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}
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List<PurchaseOrderItemDO> result = new ArrayList<>(items.size());
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int index = 1;
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for (PurchaseOrderItemSaveReqVO item : items) {
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if (item == null || StrUtil.isBlank(item.getItemName())) {
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throw exception(PURCHASE_ORDER_ITEM_NAME_EMPTY, index);
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}
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BigDecimal quantity = item.getQuantity() == null ? BigDecimal.ZERO : item.getQuantity();
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BigDecimal unitPrice = item.getUnitPrice() == null ? BigDecimal.ZERO : item.getUnitPrice();
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BigDecimal amount = quantity.multiply(unitPrice).setScale(2, RoundingMode.HALF_UP);
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result.add(PurchaseOrderItemDO.builder()
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.orderId(orderId)
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.itemName(StrUtil.trim(item.getItemName()))
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.spec(StrUtil.trim(item.getSpec()))
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.quantity(quantity)
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.unitPrice(unitPrice)
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.amount(amount)
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.sortNo(item.getSortNo() != null ? item.getSortNo() : index)
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.build());
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index++;
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}
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return result;
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}
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private BigDecimal sumAmount(List<PurchaseOrderItemDO> items) {
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return items.stream()
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.map(PurchaseOrderItemDO::getAmount)
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.filter(java.util.Objects::nonNull)
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.reduce(BigDecimal.ZERO, BigDecimal::add)
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.setScale(2, RoundingMode.HALF_UP);
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}
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}
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