package com.gkhy.exam.system.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.gkhy.exam.common.api.CommonPage;
import com.gkhy.exam.common.api.CommonResult;
import com.gkhy.exam.common.domain.entity.SysUser;
import com.gkhy.exam.common.utils.PageUtils;
import com.gkhy.exam.common.utils.SecurityUtils;
import com.gkhy.exam.system.domain.Item;
import com.gkhy.exam.system.domain.ItemUser;
import com.gkhy.exam.system.domain.req.ItemReq;
import com.gkhy.exam.system.mapper.ItemMapper;
import com.gkhy.exam.system.service.ItemService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;


@Service
public class ItemServiceImpl extends ServiceImpl<ItemMapper, Item> implements ItemService {
    @Autowired
    private ItemMapper itemMapper;

    @Override
    public CommonPage selectItemList(Item item) {
        PageUtils.startPage();
        List<Item> items = itemMapper.selectItemList(item);
        for (Item item1 : items) {
            List<ItemUser> itemUsers = itemMapper.selectItemUser(item1.getId());
            item1.setUsers(itemUsers);
        }
        return CommonPage.restPage(items);
    }

    @Override
    public CommonResult insertItem(Item item) {
        item.setCreateBy(SecurityUtils.getUsername());
        item.setCreateTime(LocalDateTime.now());
        itemMapper.insert(item);
        List<ItemUser> users = item.getUsers();
        for (ItemUser user : users) {
           user.setItemId(item.getId());
        }
        itemMapper.insertItemUser(users);
        return CommonResult.success();
    }

    @Override
    public CommonResult updateItem(Item item) {
        item.setUpdateBy(SecurityUtils.getUsername());
        item.setUpdateTime(LocalDateTime.now());
        itemMapper.updateById(item);
        List<ItemUser> users = item.getUsers();
        itemMapper.deleteItemUser(item.getId());
        for (ItemUser user : users) {
            user.setItemId(item.getId());
        }
        itemMapper.insertItemUser(users);
        return CommonResult.success();
    }

    @Override
    public CommonResult deletedItem(Integer itemId) {
        Item item = new Item();
        item.setId(itemId);
        item.setUpdateBy(SecurityUtils.getUsername());
        item.setUpdateTime(LocalDateTime.now());
        item.setDelFlag(2);
        itemMapper.updateById(item);
        return CommonResult.success();
    }

    @Override
    public CommonResult selectItemListAll(ItemReq itemReq) {
        List<Item> items = itemMapper.selectItemListAll(itemReq);
        for (Item item1 : items) {
            List<ItemUser> itemUsers = itemMapper.selectItemUser(item1.getId());
            item1.setUsers(itemUsers);
        }
        return CommonResult.success(items);
    }
}