package com.ycl.jxkg.service.impl;

import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
import com.baomidou.mybatisplus.extension.conditions.update.LambdaUpdateChainWrapper;
import com.ycl.jxkg.context.WebContext;
import com.ycl.jxkg.domain.entity.Classes;
import com.ycl.jxkg.domain.vo.StudentSimpleVO;
import com.ycl.jxkg.domain.vo.StudentVO;
import com.ycl.jxkg.enums.general.ClassesStatusEnum;
import com.ycl.jxkg.mapper.ClassesMapper;
import com.ycl.jxkg.service.ClassesService;
import com.ycl.jxkg.base.Result;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ycl.jxkg.domain.form.ClassesForm;
import com.ycl.jxkg.domain.vo.ClassesVO;
import com.ycl.jxkg.domain.query.ClassesQuery;
import com.ycl.jxkg.utils.PageUtil;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import lombok.RequiredArgsConstructor;
import org.springframework.util.Assert;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 班级 服务实现类
 *
 * @author xp
 * @since 2024-06-03
 */
@Service
@RequiredArgsConstructor
public class ClassesServiceImpl extends ServiceImpl<ClassesMapper, Classes> implements ClassesService {

    private final ClassesMapper classesMapper;
    private final WebContext webContext;

    /**
     * 添加
     * @param form
     * @return
     */
    @Override
    public Result add(ClassesForm form) {
        Classes entity = ClassesForm.getEntityByForm(form, null);
        entity.setStatus(ClassesStatusEnum.NORMAL);
        entity.setCreateUser(webContext.getCurrentUser().getId());
        baseMapper.insert(entity);
        return Result.ok("添加成功");
    }

    /**
     * 修改
     * @param form
     * @return
     */
    @Override
    public Result update(ClassesForm form) {
        Classes entity = baseMapper.selectById(form.getId());

        // 为空抛IllegalArgumentException，做全局异常处理
        Assert.notNull(entity, "记录不存在");
        BeanUtils.copyProperties(form, entity);
        baseMapper.updateById(entity);
        return Result.ok("修改成功");
    }

    /**
     * 批量删除
     * @param ids
     * @return
     */
    @Override
    public Result remove(List<String> ids) {
        baseMapper.deleteBatchIds(ids);
        return Result.ok("删除成功");
    }

    /**
     * id删除
     * @param id
     * @return
     */
    @Override
    public Result removeById(String id) {
        baseMapper.deleteById(id);
        return Result.ok("删除成功");
    }

    /**
     * 分页查询
     * @param query
     * @return
     */
    @Override
    public Result page(ClassesQuery query) {
        IPage<ClassesVO> page = PageUtil.getPage(query, ClassesVO.class);
        query.setUserId(webContext.getCurrentUser().getId());
        baseMapper.getPage(page, query);
        return Result.ok().data(page.getRecords()).total(page.getTotal());
    }

    /**
     * 根据id查找
     * @param id
     * @return
     */
    @Override
    public Result detail(Integer id) {
        ClassesVO vo = baseMapper.getById(id);
        Assert.notNull(vo, "记录不存在");
        return Result.ok().data(vo);
    }

    /**
     * 列表
     * @return
     */
    @Override
    public Result all() {
        List<Classes> entities = baseMapper.selectList(null);
        List<ClassesVO> vos = entities.stream()
                .map(entity -> ClassesVO.getVoByEntity(entity, null))
                .collect(Collectors.toList());
        return Result.ok().data(vos);
    }

    @Override
    public Result dissolution(Integer id) {
        new LambdaUpdateChainWrapper<>(baseMapper)
                .eq(Classes::getId, id)
                .set(Classes::getStatus, ClassesStatusEnum.DISSOLUTION)
                .update();
        return Result.ok("解散成功");
    }


    @Override
    public Result myClassList() {
        Integer userId = webContext.getCurrentUser().getId();
        List<Classes> list = new LambdaQueryChainWrapper<>(baseMapper)
                .select(Classes::getId, Classes::getClassName)
                .eq(Classes::getCreateUser, userId)
                .list();
        return Result.ok(list);
    }

    @Override
    public Result recover(Integer id) {
        new LambdaUpdateChainWrapper<>(baseMapper)
                .eq(Classes::getId, id)
                .set(Classes::getStatus, ClassesStatusEnum.NORMAL)
                .update();
        return Result.ok("班级已经恢复正常");
    }
}