Files
bambuddy/backend/app/core/websocket.py
T
2025-11-28 10:23:59 +01:00

86 lines
2.7 KiB
Python

import asyncio
import json
from typing import Any
from fastapi import WebSocket
class ConnectionManager:
"""Manages WebSocket connections and broadcasts."""
def __init__(self):
self.active_connections: list[WebSocket] = []
self._lock = asyncio.Lock()
async def connect(self, websocket: WebSocket):
"""Accept a new WebSocket connection."""
await websocket.accept()
async with self._lock:
self.active_connections.append(websocket)
async def disconnect(self, websocket: WebSocket):
"""Remove a WebSocket connection."""
async with self._lock:
if websocket in self.active_connections:
self.active_connections.remove(websocket)
async def broadcast(self, message: dict[str, Any]):
"""Broadcast a message to all connected clients."""
if not self.active_connections:
return
data = json.dumps(message)
async with self._lock:
disconnected = []
for connection in self.active_connections:
try:
await connection.send_text(data)
except Exception:
disconnected.append(connection)
# Clean up disconnected clients
for conn in disconnected:
if conn in self.active_connections:
self.active_connections.remove(conn)
async def send_printer_status(self, printer_id: int, status: dict):
"""Send printer status update to all clients."""
await self.broadcast({
"type": "printer_status",
"printer_id": printer_id,
"data": status,
})
async def send_print_start(self, printer_id: int, data: dict):
"""Notify clients that a print has started."""
await self.broadcast({
"type": "print_start",
"printer_id": printer_id,
"data": data,
})
async def send_print_complete(self, printer_id: int, data: dict):
"""Notify clients that a print has completed."""
await self.broadcast({
"type": "print_complete",
"printer_id": printer_id,
"data": data,
})
async def send_archive_created(self, archive: dict):
"""Notify clients that a new archive was created."""
await self.broadcast({
"type": "archive_created",
"data": archive,
})
async def send_archive_updated(self, archive: dict):
"""Notify clients that an archive was updated."""
await self.broadcast({
"type": "archive_updated",
"data": archive,
})
# Global connection manager
ws_manager = ConnectionManager()