Added satel_integra alarm panel and binary sensor platform (#9336)

* Added satel_integra alarm panel and binary sensor platform

* Fixed several issues after review: import cleanup, reduced messaging levels to debug, other.

* Fixes after review: removed dead code, improved loop, sorted imports.

* Changes after review, not yet working

* Changes after review - wrapped async code, killed ensure_future, moved async_load_platform into jobs

homeassistant/components/binary_sensor/satel_integra.py

@@ -0,0 +1,90 @@
+"""
+Support for Satel Integra zone states- represented as binary sensors.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/binary_sensor.satel_integra/
+"""
+import asyncio
+import logging
+
+from homeassistant.components.binary_sensor import BinarySensorDevice
+from homeassistant.components.satel_integra import (CONF_ZONES,
+                                                    CONF_ZONE_NAME,
+                                                    CONF_ZONE_TYPE,
+                                                    SIGNAL_ZONES_UPDATED)
+from homeassistant.core import callback
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+
+DEPENDENCIES = ['satel_integra']
+
+_LOGGER = logging.getLogger(__name__)
+
+
+@asyncio.coroutine
+def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
+    """Set up the Satel Integra binary sensor devices."""
+    if not discovery_info:
+        return
+
+    configured_zones = discovery_info[CONF_ZONES]
+
+    devices = []
+
+    for zone_num, device_config_data in configured_zones.items():
+        zone_type = device_config_data[CONF_ZONE_TYPE]
+        zone_name = device_config_data[CONF_ZONE_NAME]
+        device = SatelIntegraBinarySensor(zone_num, zone_name, zone_type)
+        devices.append(device)
+
+    async_add_devices(devices)
+
+
+class SatelIntegraBinarySensor(BinarySensorDevice):
+    """Representation of an Satel Integra binary sensor."""
+
+    def __init__(self, zone_number, zone_name, zone_type):
+        """Initialize the binary_sensor."""
+        self._zone_number = zone_number
+        self._name = zone_name
+        self._zone_type = zone_type
+        self._state = 0
+
+    @asyncio.coroutine
+    def async_added_to_hass(self):
+        """Register callbacks."""
+        async_dispatcher_connect(
+            self.hass, SIGNAL_ZONES_UPDATED, self._zones_updated)
+
+    @property
+    def name(self):
+        """Return the name of the entity."""
+        return self._name
+
+    @property
+    def icon(self):
+        """Icon for device by its type."""
+        if self._zone_type == 'smoke':
+            return "mdi:fire"
+
+    @property
+    def should_poll(self):
+        """No polling needed."""
+        return False
+
+    @property
+    def is_on(self):
+        """Return true if sensor is on."""
+        return self._state == 1
+
+    @property
+    def device_class(self):
+        """Return the class of this sensor, from DEVICE_CLASSES."""
+        return self._zone_type
+
+    @callback
+    def _zones_updated(self, zones):
+        """Update the zone's state, if needed."""
+        if self._zone_number in zones \
+                and self._state != zones[self._zone_number]:
+            self._state = zones[self._zone_number]
+            self.async_schedule_update_ha_state()