mirror of
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70 lines
2.6 KiB
Python
70 lines
2.6 KiB
Python
import logging
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from fastapi import APIRouter, WebSocket, WebSocketDisconnect
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from backend.app.core.websocket import ws_manager
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from backend.app.services.background_dispatch import background_dispatch
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from backend.app.services.printer_manager import printer_manager, printer_state_to_dict
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logger = logging.getLogger(__name__)
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router = APIRouter()
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@router.websocket("/ws")
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async def websocket_endpoint(websocket: WebSocket):
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"""WebSocket endpoint for real-time updates."""
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logger.info("WebSocket client connecting...")
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await ws_manager.connect(websocket)
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logger.info("WebSocket client connected")
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try:
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# Send initial status of all printers
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statuses = printer_manager.get_all_statuses()
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for printer_id, state in statuses.items():
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await websocket.send_json(
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{
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"type": "printer_status",
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"printer_id": printer_id,
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"data": printer_state_to_dict(state, printer_id, printer_manager.get_model(printer_id)),
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}
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)
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dispatch_state = await background_dispatch.get_state()
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if (dispatch_state.get("dispatched", 0) + dispatch_state.get("processing", 0)) > 0:
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await websocket.send_json(
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{
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"type": "background_dispatch",
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"data": dispatch_state,
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}
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)
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logger.info("Sent initial status for %s printers", len(statuses))
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# Keep connection alive and handle incoming messages
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while True:
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data = await websocket.receive_json()
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# Handle ping/pong for keepalive
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if data.get("type") == "ping":
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await websocket.send_json({"type": "pong"})
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# Handle status request
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elif data.get("type") == "get_status":
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printer_id = data.get("printer_id")
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if printer_id:
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state = printer_manager.get_status(printer_id)
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if state:
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await websocket.send_json(
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{
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"type": "printer_status",
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"printer_id": printer_id,
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"data": printer_state_to_dict(state, printer_id, printer_manager.get_model(printer_id)),
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}
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)
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except WebSocketDisconnect:
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logger.info("WebSocket client disconnected normally")
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await ws_manager.disconnect(websocket)
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except Exception as e:
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logger.error("WebSocket error: %s", e, exc_info=True)
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await ws_manager.disconnect(websocket)
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