Cleanup config / new updater object / New audio (#135)

* Cleanup config / new updater object / New audio

* Cleanup beta_channel

* fix lint

* fix lint p3

* Fix lint p4

* Allow set audio options

* Fix errors

* add host options

hassio/updater.py

@@ -0,0 +1,85 @@
+"""Fetch last versions from webserver."""
+import asyncio
+from datetime import timedelta
+import json
+import logging
+
+import aiohttp
+import async_timeout
+
+from .const import (
+    URL_HASSIO_VERSION, FILE_HASSIO_UPDATER, ATTR_HOMEASSISTANT, ATTR_HASSIO,
+    ATTR_BETA_CHANNEL)
+from .tools import AsyncThrottle, JsonConfig
+from .validate import SCHEMA_UPDATER_CONFIG
+
+_LOGGER = logging.getLogger(__name__)
+
+
+class Updater(JsonConfig):
+    """Fetch last versions from version.json."""
+
+    def __init__(self, config, loop, websession):
+        """Initialize updater."""
+        super().__init__(FILE_HASSIO_UPDATER, SCHEMA_UPDATER_CONFIG)
+        self.config = config
+        self.loop = loop
+        self.websession = websession
+
+    @property
+    def version_homeassistant(self):
+        """Return last version of homeassistant."""
+        return self._data.get(ATTR_HOMEASSISTANT)
+
+    @property
+    def version_hassio(self):
+        """Return last version of hassio."""
+        return self._data.get(ATTR_HASSIO)
+
+    @property
+    def upstream(self):
+        """Return Upstream branch for version."""
+        if self.beta_channel:
+            return 'dev'
+        return 'master'
+
+    @property
+    def beta_channel(self):
+        """Return True if we run in beta upstream."""
+        return self._data[ATTR_BETA_CHANNEL]
+
+    @beta_channel.setter
+    def beta_channel(self, value):
+        """Set beta upstream mode."""
+        self._data[ATTR_BETA_CHANNEL] = bool(value)
+        self.save()
+
+    @AsyncThrottle(timedelta(seconds=60))
+    async def fetch_data(self):
+        """Fetch current versions from github.
+
+        Is a coroutine.
+        """
+        url = URL_HASSIO_VERSION.format(self.upstream)
+        try:
+            with async_timeout.timeout(10, loop=self.loop):
+                async with self.websession.get(url) as request:
+                    data = await request.json(content_type=None)
+
+        except (aiohttp.ClientError, asyncio.TimeoutError, KeyError) as err:
+            _LOGGER.warning("Can't fetch versions from %s -> %s", url, err)
+            return
+
+        except json.JSONDecodeError as err:
+            _LOGGER.warning("Can't parse versions from %s -> %s", url, err)
+            return
+
+        # data valid?
+        if not data:
+            _LOGGER.warning("Invalid data from %s", url)
+            return
+
+        # update versions
+        self._data[ATTR_HOMEASSISTANT] = data.get('homeassistant')
+        self._data[ATTR_HASSIO] = data.get('hassio')
+        self.save()