From f9d16b227c571694d74f94f4603b637a432ffa3a Mon Sep 17 00:00:00 2001
From: epenet <6771947+epenet@users.noreply.github.com>
Date: Wed, 27 Aug 2025 06:04:44 +0000
Subject: [PATCH] Add charge_state to Tuya siren alarm

---
 .../components/tuya/binary_sensor.py          |  8 ++-
 homeassistant/components/tuya/const.py        |  1 +
 .../tuya/snapshots/test_binary_sensor.ambr    | 49 +++++++++++++++++++
 3 files changed, 57 insertions(+), 1 deletion(-)

diff --git a/homeassistant/components/tuya/binary_sensor.py b/homeassistant/components/tuya/binary_sensor.py
index 3119bd5793f..08645b49e4c 100644
--- a/homeassistant/components/tuya/binary_sensor.py
+++ b/homeassistant/components/tuya/binary_sensor.py
@@ -287,7 +287,13 @@ BINARY_SENSORS: dict[str, tuple[TuyaBinarySensorEntityDescription, ...]] = {
     ),
     # Siren Alarm
     # https://developer.tuya.com/en/docs/iot/categorysgbj?id=Kaiuz37tlpbnu
-    "sgbj": (TAMPER_BINARY_SENSOR,),
+    "sgbj": (
+        TuyaBinarySensorEntityDescription(
+            key=DPCode.CHARGE_STATE,
+            device_class=BinarySensorDeviceClass.BATTERY_CHARGING,
+        ),
+        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 7a80a51726d..e4a180472de 100644
--- a/homeassistant/components/tuya/const.py
+++ b/homeassistant/components/tuya/const.py
@@ -142,6 +142,7 @@ class DPCode(StrEnum):
     CH2O_VALUE = "ch2o_value"
     CH4_SENSOR_STATE = "ch4_sensor_state"
     CH4_SENSOR_VALUE = "ch4_sensor_value"
+    CHARGE_STATE = "charge_state"
     CHILD_LOCK = "child_lock"  # Child lock
     CISTERN = "cistern"
     CLEAN_AREA = "clean_area"
diff --git a/tests/components/tuya/snapshots/test_binary_sensor.ambr b/tests/components/tuya/snapshots/test_binary_sensor.ambr
index 2a032b1577c..c0251d6cea4 100644
--- a/tests/components/tuya/snapshots/test_binary_sensor.ambr
+++ b/tests/components/tuya/snapshots/test_binary_sensor.ambr
@@ -1175,6 +1175,55 @@
     'state': 'off',
   })
 # ---
+# name: test_platform_setup_and_discovery[binary_sensor.siren_charging-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'binary_sensor',
+    'entity_category': None,
+    'entity_id': 'binary_sensor.siren_charging',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': <BinarySensorDeviceClass.BATTERY_CHARGING: 'battery_charging'>,
+    'original_icon': None,
+    'original_name': 'Charging',
+    'platform': 'tuya',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': 'tuya.okwwus27jhqqe2mijbgscharge_state',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_platform_setup_and_discovery[binary_sensor.siren_charging-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'battery_charging',
+      'friendly_name': 'Siren Charging',
+    }),
+    'context': <ANY>,
+    'entity_id': 'binary_sensor.siren_charging',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'on',
+  })
+# ---
 # name: test_platform_setup_and_discovery[binary_sensor.siren_tamper-entry]
   EntityRegistryEntrySnapshot({
     'aliases': set({