Files
bambuddy/backend/app/api/routes/websocket.py
T

70 lines
2.6 KiB
Python

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