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app/communication/socketio/namespaces/device_ns.py

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+from __future__ import annotations
+
+import structlog
+
+from app.communication.socketio.server import sio
+
+logger = structlog.get_logger("socketio.device")
+
+
+@sio.on("connect", namespace="/device")
+async def device_connect(sid: str, environ: dict) -> None:
+    logger.info("device_ns_connected", sid=sid)
+
+
+@sio.on("disconnect", namespace="/device")
+async def device_disconnect(sid: str) -> None:
+    logger.info("device_ns_disconnected", sid=sid)
+
+
+@sio.on("send_command", namespace="/device")
+async def send_command(sid: str, data: dict) -> None:
+    device_uid = data.get("device_uid")
+    command = data.get("command")
+    if device_uid and command:
+        from app.communication.mqtt.publisher import publish_command
+
+        await publish_command(device_uid, command)
+        logger.info("command_sent", device_uid=device_uid)