add weight from MI_SCALE_WEIGHT_SAMPLE

main.py

@@ -128,6 +128,17 @@ class GadgetbridgeMQTTPublisher:
             "device_class": "battery",
         }
 
+        # Weight sensor
+        weight_config = {
+            "name": f"{self.device_name.replace('_', ' ').title()} Weight",
+            "unique_id": f"{self.device_name}_weight",
+            "state_topic": f"gadgetbridge/{self.device_name}/weight",
+            "unit_of_measurement": "kg",
+            "icon": "mdi:scale-bathroom",
+            "device": device_info,
+            "state_class": "measurement",
+        }
+
         await self.publish_home_assistant_discovery(
             "sensor", "daily_steps", steps_config
         )
@@ -143,6 +154,7 @@ class GadgetbridgeMQTTPublisher:
         await self.publish_home_assistant_discovery(
             "sensor", "battery_level", battery_config
         )
+        await self.publish_home_assistant_discovery("sensor", "weight", weight_config)
 
     def get_steps_data(self) -> Dict:
         """Extract steps data from Gadgetbridge database"""
@@ -243,6 +255,7 @@ class GadgetbridgeMQTTPublisher:
             "monthly": f"gadgetbridge/{self.device_name}/steps/monthly",
             "last_sync": f"gadgetbridge/{self.device_name}/last_sync",
             "battery": f"gadgetbridge/{self.device_name}/battery",
+            "weight": f"gadgetbridge/{self.device_name}/weight",
         }
         try:
             await self.mqtt_client.publish(
@@ -264,6 +277,12 @@ class GadgetbridgeMQTTPublisher:
                 await self.mqtt_client.publish(
                     topics["battery"], str(battery_level), qos=1
                 )
+            # Publish latest weight
+            latest_weight = self.get_latest_weight()
+            if latest_weight is not None:
+                await self.mqtt_client.publish(
+                    topics["weight"], str(latest_weight), qos=1
+                )
             self.logger.info(
                 f"Published steps data: Daily={data['daily_steps']}, Weekly={data['weekly_steps']}, Monthly={data['monthly_steps']}, Battery={battery_level}"
             )
@@ -315,6 +334,21 @@ class GadgetbridgeMQTTPublisher:
             self.logger.error(f"Error querying battery level: {e}")
             return None
 
+    def get_latest_weight(self) -> Optional[float]:
+        """Get the latest weight in kg from MI_SCALE_WEIGHT_SAMPLE table"""
+        try:
+            conn = sqlite3.connect(self.db_path)
+            cursor = conn.cursor()
+            cursor.execute(
+                "SELECT WEIGHT_KG FROM MI_SCALE_WEIGHT_SAMPLE ORDER BY TIMESTAMP DESC LIMIT 1"
+            )
+            row = cursor.fetchone()
+            conn.close()
+            return row[0] if row else None
+        except Exception as e:
+            self.logger.error(f"Error querying latest weight: {e}")
+            return None
+
 
 def get_all_device_names(db_path):
     """Returns a list of all unique device names from the database."""