From 944ac4f3c2c4db1e0af62735b20b1520132c0faa Mon Sep 17 00:00:00 2001
From: Andrew Chatham <andrew@andrewchatham.com>
Date: Thu, 15 Aug 2019 04:40:39 -0700
Subject: [PATCH] Expose Lutron RA2 occupancy sensors (#25854)

* Expose Lutron RA2 motion sensors

* Remove unused _LOGGER

* Remove unused logging import
---
 homeassistant/components/lutron/__init__.py   | 16 +++++-
 .../components/lutron/binary_sensor.py        | 56 +++++++++++++++++++
 homeassistant/components/lutron/manifest.json |  2 +-
 requirements_all.txt                          |  2 +-
 4 files changed, 71 insertions(+), 5 deletions(-)
 create mode 100644 homeassistant/components/lutron/binary_sensor.py

diff --git a/homeassistant/components/lutron/__init__.py b/homeassistant/components/lutron/__init__.py
index 1ef9a9374f7..9f4d81df044 100644
--- a/homeassistant/components/lutron/__init__.py
+++ b/homeassistant/components/lutron/__init__.py
@@ -40,7 +40,13 @@ def setup(hass, base_config):
 
     hass.data[LUTRON_BUTTONS] = []
     hass.data[LUTRON_CONTROLLER] = None
-    hass.data[LUTRON_DEVICES] = {"light": [], "cover": [], "switch": [], "scene": []}
+    hass.data[LUTRON_DEVICES] = {
+        "light": [],
+        "cover": [],
+        "switch": [],
+        "scene": [],
+        "binary_sensor": [],
+    }
 
     config = base_config.get(DOMAIN)
     hass.data[LUTRON_CONTROLLER] = Lutron(
@@ -76,9 +82,13 @@ def setup(hass, base_config):
                         )
 
                 hass.data[LUTRON_BUTTONS].append(LutronButton(hass, keypad, button))
+        if area.occupancy_group is not None:
+            hass.data[LUTRON_DEVICES]["binary_sensor"].append(
+                (area.name, area.occupancy_group)
+            )
 
-    for component in ("light", "cover", "switch", "scene"):
-        discovery.load_platform(hass, component, DOMAIN, None, base_config)
+    for component in ("light", "cover", "switch", "scene", "binary_sensor"):
+        discovery.load_platform(hass, component, DOMAIN, {}, base_config)
     return True
 
 
diff --git a/homeassistant/components/lutron/binary_sensor.py b/homeassistant/components/lutron/binary_sensor.py
new file mode 100644
index 00000000000..a86d56c325f
--- /dev/null
+++ b/homeassistant/components/lutron/binary_sensor.py
@@ -0,0 +1,56 @@
+"""Support for Lutron Powr Savr occupancy sensors."""
+from pylutron import OccupancyGroup
+
+from homeassistant.components.binary_sensor import (
+    BinarySensorDevice,
+    DEVICE_CLASS_OCCUPANCY,
+)
+
+from . import LUTRON_CONTROLLER, LUTRON_DEVICES, LutronDevice
+
+
+def setup_platform(hass, config, add_entities, discovery_info=None):
+    """Set up the Lutron occupancy sensors."""
+    if discovery_info is None:
+        return
+    devs = []
+    for (area_name, device) in hass.data[LUTRON_DEVICES]["binary_sensor"]:
+        dev = LutronOccupancySensor(area_name, device, hass.data[LUTRON_CONTROLLER])
+        devs.append(dev)
+
+    add_entities(devs)
+
+
+class LutronOccupancySensor(LutronDevice, BinarySensorDevice):
+    """Representation of a Lutron Occupancy Group.
+
+    The Lutron integration API reports "occupancy groups" rather than
+    individual sensors. If two sensors are in the same room, they're
+    reported as a single occupancy group.
+    """
+
+    @property
+    def is_on(self):
+        """Return true if the binary sensor is on."""
+        # Error cases will end up treated as unoccupied.
+        return self._lutron_device.state == OccupancyGroup.State.OCCUPIED
+
+    @property
+    def device_class(self):
+        """Return that this is an occupancy sensor."""
+        return DEVICE_CLASS_OCCUPANCY
+
+    @property
+    def name(self):
+        """Return the name of the device."""
+        # The default LutronDevice naming would create 'Kitchen Occ Kitchen',
+        # but since there can only be one OccupancyGroup per area we go
+        # with something shorter.
+        return f"{self._area_name} Occupancy"
+
+    @property
+    def device_state_attributes(self):
+        """Return the state attributes."""
+        attr = {}
+        attr["lutron_integration_id"] = self._lutron_device.id
+        return attr
diff --git a/homeassistant/components/lutron/manifest.json b/homeassistant/components/lutron/manifest.json
index ab7ca3d919f..bece55ae09d 100644
--- a/homeassistant/components/lutron/manifest.json
+++ b/homeassistant/components/lutron/manifest.json
@@ -3,7 +3,7 @@
   "name": "Lutron",
   "documentation": "https://www.home-assistant.io/components/lutron",
   "requirements": [
-    "pylutron==0.2.1"
+    "pylutron==0.2.2"
   ],
   "dependencies": [],
   "codeowners": []
diff --git a/requirements_all.txt b/requirements_all.txt
index 0008a61c872..f05be3a96d8 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1258,7 +1258,7 @@ pyloopenergy==0.1.3
 pylutron-caseta==0.5.0
 
 # homeassistant.components.lutron
-pylutron==0.2.1
+pylutron==0.2.2
 
 # homeassistant.components.mailgun
 pymailgunner==1.4