#!/usr/bin/env python3
-"""Utilities for dealing with the webcams."""
+# © Copyright 2021-2022, Scott Gasch
+"""Utilities for dealing with the chromecasts."""
+
+import atexit
+import datetime
import logging
-import time
+import threading
+from typing import Any, List
import pychromecast
-from decorator_utils import memoized
import smart_home.device as dev
+from decorator_utils import memoized
logger = logging.getLogger(__name__)
class BaseChromecast(dev.Device):
+ """A base class to represent a Google Chromecase device."""
+
+ ccasts: List[Any] = []
+ refresh_ts = None
+ browser = None
+ lock = threading.Lock()
+
def __init__(self, name: str, mac: str, keywords: str = "") -> None:
super().__init__(name.strip(), mac.strip(), keywords)
ip = self.get_ip()
- self.cast = pychromecast.Chromecast(ip)
- self.cast.wait()
- time.sleep(0.1)
+ now = datetime.datetime.now()
+ with BaseChromecast.lock:
+ if (
+ BaseChromecast.refresh_ts is None
+ or (now - BaseChromecast.refresh_ts).total_seconds() > 60
+ ):
+ logger.debug('Refreshing the shared chromecast info list')
+ if BaseChromecast.browser is not None:
+ BaseChromecast.browser.stop_discovery()
+ (
+ BaseChromecast.ccasts,
+ BaseChromecast.browser,
+ ) = pychromecast.get_chromecasts(timeout=15.0)
+ assert BaseChromecast.browser is not None
+ atexit.register(BaseChromecast.browser.stop_discovery)
+ BaseChromecast.refresh_ts = now
+
+ self.cast = None
+ for cc in BaseChromecast.ccasts:
+ if cc.cast_info.host == ip and cc.cast_info.cast_type != 'group':
+ logger.debug('Found chromecast at %s: %s', ip, cc)
+ self.cast = cc
+ self.cast.wait(timeout=1.0)
+ if self.cast is None:
+ raise Exception(f'Can\'t find ccast device at {ip}, is that really a ccast device?')
def is_idle(self):
return self.cast.is_idle
def __repr__(self):
return (
f"Chromecast({self.cast.socket_client.host!r}, port={self.cast.socket_client.port!r}, "
- f"device={self.cast.device!r})"
+ f"device={self.cast.cast_info.friendly_name!r})"
)