# -*- coding: utf-8 -*- from enum import Enum from typing import Dict import arrow import numpy as np from httpx import AsyncClient, URL from loguru import logger from app.services.service import Service from app.utils.date import get_time_str, TIME_FMT from app.utils.math import round_half_up from app.core.config import PlatformSettings platform_settings = PlatformSettings() class InfoCode(str, Enum): temperature = 'Tdb' co2 = 'CO2' hcho = 'HCHO' pm2d5 = 'PM2d5' humidity = 'RH' class DataPlatformService(Service): def __init__( self, client: AsyncClient, project_id: str, space_id: str, settings: PlatformSettings = platform_settings ): super(DataPlatformService, self).__init__(client) self._project_id = project_id self._space_id = space_id self._base_url = URL(settings.platform_host) self._now_time = get_time_str() self._secret = settings.platform_secret def _common_parameters(self) -> Dict: return {'projectId': self._project_id, 'secret': self._secret} async def get_realtime_data(self, code: InfoCode) -> float: url = self._base_url.join('data-platform-3/hisdata/query_by_obj') params = self._common_parameters() start_time = get_time_str(60 * 60, flag='ago') payload = { 'criteria': { 'id': self._space_id, 'code': code.value, 'receivetime': { '$gte': start_time, '$lte': self._now_time, } } } raw_info = await self._post(url, params, payload) value = np.NAN if raw_info.get('Content'): latest_data = raw_info.get('Content')[-1].get('data') latest_time = raw_info.get('Content')[-1].get('receivetime') if arrow.get(latest_time, TIME_FMT).shift(minutes=15) < arrow.get(self._now_time, TIME_FMT): logger.info(f'delayed data - {self._space_id}: ({latest_time}, {latest_data})') value = round_half_up(latest_data, 2) return value async def get_realtime_temperature(self) -> float: return await self.get_realtime_data(InfoCode.temperature) async def get_realtime_co2(self) -> float: return await self.get_realtime_data(InfoCode.co2) async def get_realtime_hcho(self) -> float: return await self.get_realtime_data(InfoCode.hcho) async def get_realtime_pm2d5(self) -> float: return await self.get_realtime_data(InfoCode.pm2d5) async def get_realtime_humidity(self) -> float: return await self.get_realtime_data(InfoCode.humidity)