From 3cdfb84b79e7e5b8b1ebb1b7da61f1dca180bc03 Mon Sep 17 00:00:00 2001
From: Franck Nijhof <git@frenck.dev>
Date: Sat, 23 Oct 2021 18:15:52 +0200
Subject: [PATCH] Add Gas Detector (rqbj) device support to Tuya (#58293)

---
 homeassistant/components/tuya/binary_sensor.py | 16 ++++++++++++++++
 homeassistant/components/tuya/const.py         |  3 +++
 homeassistant/components/tuya/sensor.py        | 10 ++++++++++
 3 files changed, 29 insertions(+)

diff --git a/homeassistant/components/tuya/binary_sensor.py b/homeassistant/components/tuya/binary_sensor.py
index 202362da0d9..33a0eef3572 100644
--- a/homeassistant/components/tuya/binary_sensor.py
+++ b/homeassistant/components/tuya/binary_sensor.py
@@ -7,6 +7,7 @@ from tuya_iot import TuyaDevice, TuyaDeviceManager
 
 from homeassistant.components.binary_sensor import (
     DEVICE_CLASS_DOOR,
+    DEVICE_CLASS_GAS,
     DEVICE_CLASS_MOISTURE,
     DEVICE_CLASS_MOTION,
     DEVICE_CLASS_SAFETY,
@@ -126,6 +127,21 @@ BINARY_SENSORS: dict[str, tuple[TuyaBinarySensorEntityDescription, ...]] = {
         ),
         TAMPER_BINARY_SENSOR,
     ),
+    # Gas Detector
+    # https://developer.tuya.com/en/docs/iot/categoryrqbj?id=Kaiuz3d162ubw
+    "rqbj": (
+        TuyaBinarySensorEntityDescription(
+            key=DPCode.GAS_SENSOR_STATUS,
+            device_class=DEVICE_CLASS_GAS,
+            on_value="alarm",
+        ),
+        TuyaBinarySensorEntityDescription(
+            key=DPCode.GAS_SENSOR_STATE,
+            device_class=DEVICE_CLASS_GAS,
+            on_value="1",
+        ),
+        TAMPER_BINARY_SENSOR,
+    ),
     # Water Detector
     # https://developer.tuya.com/en/docs/iot/categorysj?id=Kaiuz3iub2sli
     "sj": (
diff --git a/homeassistant/components/tuya/const.py b/homeassistant/components/tuya/const.py
index eb2f10429a0..0f42bc9265c 100644
--- a/homeassistant/components/tuya/const.py
+++ b/homeassistant/components/tuya/const.py
@@ -177,6 +177,9 @@ class DPCode(str, Enum):
     FAN_SPEED_PERCENT = "fan_speed_percent"  # Stepless speed
     FAR_DETECTION = "far_detection"
     FILTER_RESET = "filter_reset"  # Filter (cartridge) reset
+    GAS_SENSOR_STATE = "gas_sensor_state"
+    GAS_SENSOR_STATUS = "gas_sensor_status"
+    GAS_SENSOR_VALUE = "gas_sensor_value"
     HUMIDITY_CURRENT = "humidity_current"  # Current humidity
     HUMIDITY_SET = "humidity_set"  # Humidity setting
     HUMIDITY_VALUE = "humidity_value"  # Humidity
diff --git a/homeassistant/components/tuya/sensor.py b/homeassistant/components/tuya/sensor.py
index bea3b52a26e..eddbd650688 100644
--- a/homeassistant/components/tuya/sensor.py
+++ b/homeassistant/components/tuya/sensor.py
@@ -211,6 +211,16 @@ SENSORS: dict[str, tuple[SensorEntityDescription, ...]] = {
     # PIR Detector
     # https://developer.tuya.com/en/docs/iot/categorypir?id=Kaiuz3ss11b80
     "pir": BATTERY_SENSORS,
+    # Gas Detector
+    # https://developer.tuya.com/en/docs/iot/categoryrqbj?id=Kaiuz3d162ubw
+    "rqbj": (
+        SensorEntityDescription(
+            key=DPCode.GAS_SENSOR_VALUE,
+            icon="mdi:gas-cylinder",
+            device_class=STATE_CLASS_MEASUREMENT,
+        ),
+        *BATTERY_SENSORS,
+    ),
     # Water Detector
     # https://developer.tuya.com/en/docs/iot/categorysj?id=Kaiuz3iub2sli
     "sj": BATTERY_SENSORS,