package com.oying.modules.pc.store.service.impl;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.oying.exception.EntityNotFoundException;
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import com.oying.modules.pc.common.exception.LevelExceededException;
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import com.oying.modules.pc.store.domain.StoreCategory;
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import com.oying.modules.pc.store.domain.dto.StoreCategoryQueryCriteria;
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import com.oying.modules.pc.store.mapper.StoreCategoryMapper;
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import com.oying.modules.pc.store.service.StoreCategoryService;
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import com.oying.utils.FileUtil;
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import com.oying.utils.PageResult;
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import com.oying.utils.PageUtil;
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import com.oying.utils.SecurityUtils;
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import lombok.RequiredArgsConstructor;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.util.*;
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/**
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* @author lzp
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* @date 2025-04-24
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**/
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@Service
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@RequiredArgsConstructor
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public class StoreCategoryServiceImpl extends ServiceImpl<StoreCategoryMapper, StoreCategory> implements StoreCategoryService {
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private static final int MAX_LEVEL = 2;
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private final StoreCategoryMapper storeCategoryMapper;
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@Override
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public PageResult<StoreCategory> queryAll(StoreCategoryQueryCriteria criteria, Page<Object> page) {
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return PageUtil.toPage(storeCategoryMapper.findAll(criteria, page));
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}
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@Override
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public List<StoreCategory> queryAll(StoreCategoryQueryCriteria criteria) {
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return storeCategoryMapper.findAll(criteria);
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public void create(StoreCategory resources) {
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// 重名
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this.calculateAndSetLevel(resources);
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resources.setCreateBy(SecurityUtils.getCurrentUserId());
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storeCategoryMapper.insert(resources);
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public void update(StoreCategory resources) {
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StoreCategory storeCategory = getById(resources.getCategoryId());
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storeCategory.copy(resources);
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resources.setUpdateBy(SecurityUtils.getCurrentUserId());
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storeCategoryMapper.updateById(storeCategory);
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public void deleteAll(List<Long> ids) {
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storeCategoryMapper.deleteBatchIds(ids);
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}
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/**
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* 计算并设置类目的层级
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*/
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private void calculateAndSetLevel(StoreCategory category) {
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if (category == null) {
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throw new IllegalArgumentException("对象不能为null");
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}
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Long parentCategoryId = category.getParentId();
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if (parentCategoryId == null) {
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category.setParentId(0L);
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category.setLevel(1);
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return;
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}
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StoreCategory parentCategory = Optional.ofNullable(getById(parentCategoryId))
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.orElseThrow(() -> new EntityNotFoundException(StoreCategory.class, "parentId", parentCategoryId.toString()));
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int currentLevel = parentCategory.getLevel() + 1;
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if (currentLevel > MAX_LEVEL) {
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throw new LevelExceededException(category.getLevel(), MAX_LEVEL);
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}
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category.setLevel(currentLevel);
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}
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}
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