package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController("adminDishController")
@Slf4j
@Api(tags = "菜品相关接口")
@RequestMapping("/admin/dish")
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;


    @PostMapping
    @ApiOperation("新增菜品")
    public Result add(@RequestBody DishDTO dto){
        log.info("新增菜品：{}",dto);
        dishService.saveDishWitchFlavor(dto);
        //清理新增菜品所绑定的分类的缓存数据
        /*String key = "dish_"+dto.getCategoryId();
        redisTemplate.delete(key);*/
        String pattern = "dish_"+dto.getCategoryId();
        cleanDishCache(pattern);
        return Result.success();
    }


    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("菜品分页查询：{}",dishPageQueryDTO);
        //调用业务层的分页查询功能
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);

        return Result.success(pageResult);
    }


    @DeleteMapping
    @ApiOperation("菜品批量删除")
    public Result delete(@RequestParam List<Long> ids){ //@RequestParam：能够使用springmvc框架，对1,2,3 参数进行切割
        log.info("菜品批量删除：{}",ids);
        //调用业务层的菜品批量删除功能
        dishService.deleteBath(ids);

        //当前批量删除菜品时，我们需要通过更多的查询操作，才能知道删除了哪些分类的菜品，（为了效率）那么我们直接将所有的菜品缓存直接清楚即可
        cleanDishCache("dish_*");

        return Result.success();
    }

    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getById(@PathVariable Long id){ //@RequestParam：能够使用springmvc框架，对1,2,3 参数进行切割
        log.info("根据id查询菜品：{}",id);
        DishVO  dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    @PutMapping
    @ApiOperation("修改菜品")
    public Result getById(@RequestBody DishDTO dishDTO){ //@RequestParam：能够使用springmvc框架，对1,2,3 参数进行切割
        log.info("修改菜品：{}",dishDTO);
        dishService.updateWithFlavor(dishDTO);
        //当前修改菜品时，可能修改价格，也可能修改分类，那么我们直接将所有的菜品缓存直接清楚即可
        cleanDishCache("dish_*");
        return Result.success();
    }

    @PostMapping("/status/{status}")
    @ApiOperation("菜品起售停售")
    public Result startOrStop(@PathVariable Integer status,Long id){ //@RequestParam：能够使用springmvc框架，对1,2,3 参数进行切割
        log.info("菜品起售停售：{},{}",status,id);
        dishService.startOrStop(status,id);

        //当前起售停售菜品，只传递了菜品ID，那么我们要知道对应的分类，还要做一次select，那么我们直接将所有的菜品缓存直接清楚即可
        cleanDishCache("dish_*");
        return Result.success();
    }

    //抽取清理菜品缓存
    private void cleanDishCache(String pattern) {
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }

    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }
}