Calculates when to lower exterior solar blinds

blinds.py

#!/home/pi/home-automation/venv/bin/python
import os
import time as mytime
from pprint import pprint
from pyowm import OWM
from pyhubitat import MakerAPI
import astropy.units as u
from astropy.time import Time
from datetime import datetime
from astropy.coordinates import EarthLocation, AltAz
from astropy.coordinates import get_sun

OWM_KEY = os.environ['OWM_KEY']
HUB_TOKEN = os.environ['HUBITAT_TOKEN']
HUB_IP = os.environ['HUBITAT_IP']
HUB_APP_ID = os.environ['HUBITAT_APP_ID']
HUB_URL = f'https://{HUB_IP}/apps/api/{HUB_APP_ID}'


def filter_open_windows(blinds_to_lower):
    filtered_blinds_to_lower = []
    blind_to_sensor_mapping = {
        485: [402], # office east
        486: [403], # office south
        487: [404], # laundry
        488: [405,406], # sam south
        491: [407], # annie south
        492: [408], # annie west
        494: [410], # primary west
        493: [409] # primary north
    }
    ph = MakerAPI(HUB_TOKEN, HUB_URL)
    for blind in blinds_to_lower:
        found_open_window = False
        if blind in blind_to_sensor_mapping:
            for sensor in blind_to_sensor_mapping[blind]:
                device_details = ph.get_device_info(sensor)
                mytime.sleep(2)  # throttle API calls
                current_state = next((elm['currentValue'] for elm in device_details['attributes'] if elm['name'] == 'contact'), None)
                if current_state == 'open':
                    found_open_window = True
        if not found_open_window:
            filtered_blinds_to_lower.append(blind)
    return filtered_blinds_to_lower


def set_blinds(blinds_to_lower):
    ph = MakerAPI(HUB_TOKEN, HUB_URL)
    devices = ph.list_devices()
    blinds = [d for d in devices if d['name'] == "Somfy MyLink Shade"]
    directions = blinds_to_lower.split()
    blind_ids_to_lower = []
    for elm in [b for b in blinds for direction in directions if direction in b['label']]:
        blind_ids_to_lower.append(int(elm['id']))
    blind_ids = [int(elm['id']) for elm in blinds]
    blind_ids_to_raise = list(set(blind_ids) - set(blind_ids_to_lower))
    blind_ids_to_lower = filter_open_windows(blind_ids_to_lower)
    for id in blind_ids_to_lower:
        ph.send_command(id, 'close')
        mytime.sleep(2)  # throttle API calls
    for id in blind_ids_to_raise:
        ph.send_command(id, 'open')
        mytime.sleep(2)  # throttle API calls


# get sun angles etc at our location
briar_house = EarthLocation.from_geodetic(-111.63855869671522, 40.25241886212485, 0)
utcoffset = -6 * u.hour  # Mountain Daylight Time
time = Time(datetime.utcnow(), scale='utc', location=briar_house)
aaframe = AltAz(obstime=time, location=briar_house)
sun = get_sun(time)
sunaa = sun.transform_to(aaframe)

blinds_to_lower = ''

# if sun is up
if sunaa.alt > 8.0 * u.deg:
    # determine sun's angle with house
    house_angle = 145 * u.deg
    front_angle = sunaa.az - house_angle
    if front_angle < 0: front_angle = front_angle + 360 * u.deg

    # get weather
    owm = OWM(OWM_KEY)
    mgr = owm.weather_manager()
    observation = mgr.weather_at_place('Provo,UT,USA')
    w = observation.weather

    if w.temperature('fahrenheit')['temp'] > 35:
        if w.wind(unit='beaufort')['speed'] < 6:
            if w.clouds < 101:
                if (front_angle.is_within_bounds('270d', '360d') or front_angle.is_within_bounds('0d', '90d')): # front
                    blinds_to_lower = 'South'
                if (front_angle.is_within_bounds('0d', '180d')): # right
                    if len(blinds_to_lower) > 0: blinds_to_lower += ' '
                    blinds_to_lower += 'West'
                if (front_angle.is_within_bounds('90d', '272d')): # back (skip degrees 270-271 because they are so oblique)
                    if len(blinds_to_lower) > 0: blinds_to_lower += ' '
                    blinds_to_lower += 'North'
                if (front_angle.is_within_bounds('180d', '360d')): # left
                    if len(blinds_to_lower) > 0: blinds_to_lower += ' '
                    blinds_to_lower += 'East'

set_blinds(blinds_to_lower)