package com.nanjing.water.service.cache;

import com.nanjing.water.common.util.SerializeUtil;
import com.nanjing.water.common.util.StringUtil;
import com.nanjing.water.repository.impl.AdminMenuMapperImpl;
import com.nanjing.water.repository.po.AdminMenuPO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Objects;
import java.util.function.Function;

@Service
public class AdminMenuService {
    @Autowired
    private AdminMenuMapperImpl dao;

    @Autowired
    private StringRedisTemplate redisTemplate;

    /**
     * 获取所有菜单(缓存)
     */
    public List<AdminMenuPO> listAllWithCache() {
        try {
            if (redisTemplate.hasKey("adminMenusCache")) {
                String json = redisTemplate.opsForValue().get("adminMenusCache");
                if (StringUtil.isNotNullOrEmpty(json)) {
                    return SerializeUtil.toListObject(json, AdminMenuPO.class);
                }
            }
        } catch (Exception e) {
            //
        }
        List<AdminMenuPO> list = dao.getList();
        redisTemplate.opsForValue().set("adminMenusCache", SerializeUtil.toJson(list));
        return list;
    }

    // 删除菜单缓存
    public void removeListAllCache() {
        redisTemplate.delete("adminMenusCache");
    }


    /**
     * 获取用户拥有的菜单(缓存)
     */
    public List<AdminMenuPO> listUserAllWithCache(Long id, List<Long> listRoleId, Function<List<Long>, List<AdminMenuPO>> funcGetUserMenu) {
        try {
            if (redisTemplate.hasKey("userMenusCache")) {
                Object json = redisTemplate.opsForHash().get("userMenusCache", id);
                if (Objects.nonNull(json)) {
                    return SerializeUtil.toListObject(json.toString(), AdminMenuPO.class);
                }
            }
        } catch (Exception e) {
            //
        }
        List<AdminMenuPO> list = funcGetUserMenu.apply(listRoleId);
        redisTemplate.opsForHash().put("adminMenusCache", id, SerializeUtil.toJson(list));
        return list;
    }
    // 删除指定用户拥有的菜单缓存
    public void removeUserMenuCache(Long id) {
        redisTemplate.opsForHash().delete("userMenusCache", id);
    }
    // 删除所有用户拥有的菜单缓存
    public void removeAllUserMenuCache() {
        redisTemplate.delete("userMenusCache");
    }
}