# @Author    : Rocky
# @File      : DeviceController.py
# @Time      : 2025/5/16 14:56

import logging
from datetime import datetime

from django.views import View

from model.models import iotdeviceInfoModel
from object.ResponseObject import ResponseObject


class DeviceView(View):
    def get(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        operation = kwargs.get('operation')
        return self.validation(request.GET, request, operation)

    def post(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        operation = kwargs.get('operation')
        return self.validation(request.POST, request, operation)

    def validation(self, request_dict, request, operation):
        response = ResponseObject()
        if operation == 'creatOrUpdateIotInfo':
            return self.creatOrUpdateIotInfo(request_dict, response)
        else:
            return response.json(414)

    @staticmethod
    def creatOrUpdateIotInfo(request_dict, response):
        logger = logging.getLogger('django')

        # 获取必要参数
        serial_number = request_dict.get('serial_number', '')
        uid = request_dict.get('uid', '')
        certificate_id = request_dict.get('certificate_id', '')
        certificate_pem = request_dict.get('certificate_pem', '')
        public_key = request_dict.get('public_key', '')
        private_key = request_dict.get('private_key', '')
        thing_name = request_dict.get('thing_name', '')
        thing_groups = request_dict.get('thing_groups', '')
        endpoint = request_dict.get('endpoint', '')
        token_iot_number = request_dict.get('token_iot_number', '')
        
        # 检查参数有效性
        if not (serial_number or uid):
            return response.json(444, 'serial_number或uid必须有一个不为空')
            
        try:
            # 查询设备是否已存在
            if serial_number:
                device_name = serial_number
                device = iotdeviceInfoModel.objects.filter(serial_number=serial_number).first()
            else:
                device_name = uid
                device = iotdeviceInfoModel.objects.filter(uid=uid).first()

            logger.info('--------{}创建/更新IoT设备信息--------'.format(device_name))
            if not device:
                # 创建新设备
                iotdeviceInfoModel.objects.create(
                    serial_number=serial_number,
                    uid=uid,
                    certificate_id=certificate_id,
                    certificate_pem=certificate_pem,
                    public_key=public_key,
                    private_key=private_key,
                    thing_name=thing_name,
                    thing_groups=thing_groups,
                    endpoint=endpoint,
                    token_iot_number=token_iot_number
                )
            else:
                # 更新现有设备
                if device.certificate_id != certificate_id:
                    device.certificate_id = certificate_id
                    device.certificate_pem = certificate_pem
                    device.public_key = public_key
                    device.private_key = private_key
                    device.thing_name = thing_name
                    device.thing_groups = thing_groups
                    device.endpoint = endpoint
                    device.token_iot_number = token_iot_number
                    device.update_time = datetime.now()
                    device.save()

            return response.json(0)
                    
        except Exception as e:
            logger.error('创建/更新IoT设备信息异常: %s', str(e))
            return response.json(500, '服务器内部错误')