package com.sky.service.impl;

import com.sky.dto.SetmealDTO;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetMealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

/**
 * 套餐业务实现
 */
@Service
@Slf4j
public class SetmealServiceImpl implements SetmealService {

    @Resource
    private SetmealMapper setmealMapper;
    @Resource
    private SetMealDishMapper setmealDishMapper;
    @Resource
    private DishMapper dishMapper;

    /**
     * 条件查询
     *
     * @param setmeal Setmeal
     * @return List<Setmeal>
     */
    public List<Setmeal> list(Setmeal setmeal) {
        return setmealMapper.list(setmeal);
    }

    /**
     * 根据id查询菜品选项
     *
     * @param id Long
     * @return List<DishItemVO>
     */
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }

    /**
     * 新增套餐，同时需要保存套餐和菜品的关联关系
     *
     * @param setmealDTO SetmealDTO
     */
    @Override
    public void saveWithDish(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO, setmeal);

        // 向套餐表插入数据
        setmealMapper.insert(setmeal);
        // 获取生成的套餐id
        Long setmealId = setmeal.getId();
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        setmealDishes.forEach(setmealDish -> {
            setmealDish.setSetmealId(setmealId);
        });
        // 保存套餐和菜品的关联关系
        setmealDishMapper.insertBatch(setmealDishes);
    }
}