package com.doumee.service.business.impl;

import com.doumee.core.constants.ResponseStatus;
import com.doumee.core.exception.BusinessException;
import com.doumee.service.business.third.model.LoginUserInfo;
import com.doumee.service.business.third.model.PageData;
import com.doumee.service.business.third.model.PageWrap;
import com.doumee.core.utils.Constants;
import com.doumee.core.utils.Utils;
import com.doumee.dao.business.CategoryMapper;
import com.doumee.dao.business.model.Category;
import com.doumee.service.business.CategoryService;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import org.apache.commons.lang3.StringUtils;
import org.apache.shiro.SecurityUtils;
import org.checkerframework.checker.units.qual.C;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;
import org.springframework.validation.BindException;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;

/**
 * 分类信息表Service实现
 * @author 江蹄蹄
 * @date 2023/11/30 15:33
 */
@Service
public class CategoryServiceImpl implements CategoryService {

    @Autowired
    private CategoryMapper categoryMapper;

    @Override
    @Transactional(rollbackFor = {Exception.class, BindException.class})
    public Integer create(Category category){
        checkUnique(category);
        LoginUserInfo loginUserInfo = (LoginUserInfo) SecurityUtils.getSubject().getPrincipal();
        if(loginUserInfo ==null){
            loginUserInfo = category.getLoginUserInfo();
        }
        Category insert = new Category();
        insert.setCreator(loginUserInfo.getId());
        insert.setCreateDate(new Date());
        insert.setEditor(loginUserInfo.getId());
        insert.setEditDate(new Date());
        insert.setIsdeleted(Constants.ZERO);
        insert.setName(category.getName());
        insert.setRemark(category.getRemark());
        insert.setStatus(Constants.ZERO);
        insert.setSortnum(category.getSortnum());
        insert.setBizType(category.getBizType());
        insert.setImgurl(category.getImgurl());
        insert.setType(category.getType());
        insert.setParentId(category.getParentId());
        categoryMapper.insert(insert);
        if(insert.getBizType()!=null){
            //清空其他bizType,只保留当前新增记录唯一有效
            categoryMapper.update(null,new UpdateWrapper<Category>().lambda()
                    .set(Category::getBizType,null)
                    .eq(Category::getBizType,insert.getType())
                    .ne(Category::getId,insert.getId())
            );
        }
        return insert.getId();
    }

    @Override
    public void deleteById(Integer id) {
        categoryMapper.update(null,new UpdateWrapper<Category>().lambda().set(Category::getIsdeleted,Constants.ONE)
                .eq(Category::getId,id)
        );
    }

    @Override
    public void delete(Category category) {
        UpdateWrapper<Category> deleteWrapper = new UpdateWrapper<>(category);
        categoryMapper.delete(deleteWrapper);
    }

    @Override
    public void deleteByIdInBatch(List<Integer> ids) {
        if (CollectionUtils.isEmpty(ids)) {
            return;
        }
        categoryMapper.update(null,new UpdateWrapper<Category>().lambda().set(Category::getIsdeleted,Constants.ONE)
                .in(Category::getId,ids)
        );
    }

    @Override
    @Transactional(rollbackFor = {Exception.class, BindException.class})
    public void updateById(Category category) {
        checkUnique(category);
        categoryMapper.updateById(category);
        if(category.getBizType()!=null){
            //清空其他该bizType属性,只保留当前记录唯一有效
            categoryMapper.update(null,new UpdateWrapper<Category>().lambda()
                    .set(Category::getBizType,null)
                    .eq(Category::getBizType,category.getBizType())
                    .ne(Category::getId,category.getId())
            );
        }
    }

    @Override
    public void updateByIdInBatch(List<Category> categorys) {
        if (CollectionUtils.isEmpty(categorys)) {
            return;
        }
        for (Category category: categorys) {
            this.updateById(category);
        }
    }

    @Override
    public Category findById(Integer id) {
        return categoryMapper.selectById(id);
    }

    @Override
    public Category findOne(Category category) {
        QueryWrapper<Category> wrapper = new QueryWrapper<>(category);
        return categoryMapper.selectOne(wrapper);
    }

    @Override
    public List<Category> findList(Category category) {
        QueryWrapper<Category> wrapper = new QueryWrapper<>(category);
        return categoryMapper.selectList(wrapper);
    }

    @Override
    public List<Category> queryList(Category category) {
        List<Category> categoryList = categoryMapper.selectList(new QueryWrapper<Category>().lambda()
                .eq(Objects.nonNull(category)&&Objects.nonNull(category.getType()),Category::getType,category.getType())
                .isNull(Objects.nonNull(category)&&Objects.isNull(category.getParentId()),Category::getParentId)
                .eq(Objects.nonNull(category)&&Objects.nonNull(category.getParentId()),Category::getParentId,category.getParentId())
                .eq(Category::getIsdeleted,Constants.ZERO)
        );
        return categoryList;
    }

    @Override
    public PageData<Category> findPage(PageWrap<Category> pageWrap) {
        IPage<Category> page = new Page<>(pageWrap.getPage(), pageWrap.getCapacity());
        QueryWrapper<Category> queryWrapper = new QueryWrapper<>();
        Utils.MP.blankToNull(pageWrap.getModel());
        queryWrapper.lambda().eq(Category::getIsdeleted,Constants.ZERO)
                .eq(Objects.nonNull(pageWrap.getModel().getType()),Category::getType,pageWrap.getModel().getType())
                .isNull(Category::getParentId);
        PageData<Category> categoryPageData = PageData.from(categoryMapper.selectPage(page, queryWrapper));
        //查询所有二级数据
        List<Category> categoryList = categoryMapper.selectList(
                new QueryWrapper<Category>().lambda()
                        .eq(Objects.nonNull(pageWrap.getModel().getType()),Category::getType,pageWrap.getModel().getType())
                        .eq(Category::getIsdeleted,Constants.ZERO).isNotNull(Category::getParentId));

        for (Category category:categoryPageData.getRecords()) {
            category.setChildCategoryList(
                    categoryList.stream().filter(i->Constants.equalsInteger(i.getParentId(),category.getId())).collect(Collectors.toList())
            );
        }

        return categoryPageData;
    }

    @Override
    public long count(Category category) {
        QueryWrapper<Category> wrapper = new QueryWrapper<>(category);
        return categoryMapper.selectCount(wrapper);
    }
    @Override
    public  List<Category> findChileList(Category model) {
        if(Objects.isNull(model)){
            model = new Category();
        }
        model.setIsdeleted(Constants.ZERO);
        List<Category> list =findList(model);
        List<Category> data = new ArrayList<>();
        if(list!=null){
            for(Category category : list){
                if(category.getParentId()!=null){
                    Category pcate = getParentById(category.getParentId(),list);
                    if(pcate!=null){
                        category.setParentName(StringUtils.defaultString(pcate.getName(),""));
                        category.setName(StringUtils.defaultString(category.getName(),""));
                        category.setGroupName( category.getParentName()+"/"+category.getName());
                        data.add(category);
                    }
                }else{
                    data.add(category);
                }
            }
        }
        return  data;
    }

    private Category getParentById(Integer parentId, List<Category> list) {
        if(list!=null){
            for(Category category : list){
                if(Constants.equalsInteger(parentId,category.getId())){
                   return  category;
                }
            }
        }
        return  null;
    }

    private void checkUnique(Category category){
        QueryWrapper<Category> wrapper = new QueryWrapper<>();
        wrapper.lambda()
                .eq(Category::getIsdeleted,Constants.ZERO)
                .eq(Category::getType,category.getType())
                .eq(Category::getName,category.getName())
                .ne(category.getId()!=null, Category::getId,category.getId())
        ;

        List<Category> categories = categoryMapper.selectList(wrapper);
        if (org.apache.commons.collections.CollectionUtils.isNotEmpty(categories)){
            throw new BusinessException(ResponseStatus.DATA_EXISTS.getCode(),"分类信息已存在");
        }
    }
}