#!/opt/homebrew/bin/python3
# -*- coding:utf-8 -*-

import json
import os
from datetime import datetime
from PyQt6.QtCore import *
from models import Device, Session
from logs import log
from PyQt6.QtGui import *

class DeviceBackend(QObject):
    def __init__(self):
        super().__init__()

    # 添加设备
    def create_device(self, json_str):
        json_dict = json.loads(json_str)
        name = json_dict['name']
        ok, data = Session.queryByName(Device, name)
        if ok:
            return False, None
        return Session.addByClass(Device, json_dict)

    # 更新设备
    def update_device(self, json_str):
        json_dict = json.loads(json_str)
        id = json_dict.get('id')
        return Session.updateById(Device, id, json_dict)

    # 删除设备
    def delete_device(self, id):
        return Session.deleteById(Device, id)

    # 获取所有设备
    def get_devices(self):
        return Session.queryByAll(Device)

    # 获取某个设备
    def get_device(self, id):
        return Session.queryById(Device, id)


deviceBackend = DeviceBackend()