Gan, Jimmy
108 lines
3.3 KiB
Python
108 lines
3.3 KiB
Python
"""
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OPC WebSocket Router - Real-time updates for tasks and agent executions
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"""
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from fastapi import APIRouter, WebSocket, WebSocketDisconnect, Depends
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from typing import Set
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import json
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import asyncio
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import logging
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from auth_service import get_current_user_ws
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logger = logging.getLogger(__name__)
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router = APIRouter()
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# Active WebSocket connections
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active_connections: Set[WebSocket] = set()
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class ConnectionManager:
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"""Manages WebSocket connections"""
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def __init__(self):
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self.active_connections: Set[WebSocket] = set()
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async def connect(self, websocket: WebSocket):
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"""Accept and register a new connection"""
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await websocket.accept()
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self.active_connections.add(websocket)
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logger.info(f"WebSocket connected. Total connections: {len(self.active_connections)}")
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def disconnect(self, websocket: WebSocket):
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"""Remove a connection"""
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self.active_connections.discard(websocket)
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logger.info(f"WebSocket disconnected. Total connections: {len(self.active_connections)}")
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async def broadcast(self, message: dict):
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"""Broadcast message to all connected clients"""
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disconnected = set()
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for connection in self.active_connections:
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try:
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await connection.send_json(message)
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except Exception as e:
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logger.error(f"Failed to send message: {e}")
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disconnected.add(connection)
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# Clean up disconnected clients
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for conn in disconnected:
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self.disconnect(conn)
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manager = ConnectionManager()
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@router.websocket("/ws")
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async def websocket_endpoint(websocket: WebSocket):
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"""WebSocket endpoint for OPC real-time updates"""
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await manager.connect(websocket)
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try:
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while True:
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# Keep connection alive and receive any client messages
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data = await websocket.receive_text()
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# Echo back for ping/pong
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if data == "ping":
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await websocket.send_text("pong")
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except WebSocketDisconnect:
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manager.disconnect(websocket)
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except Exception as e:
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logger.error(f"WebSocket error: {e}")
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manager.disconnect(websocket)
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async def broadcast_task_update(task_id: int, action: str, task_data: dict):
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"""Broadcast task update to all connected clients"""
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message = {
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"type": "task_update",
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"task_id": task_id,
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"action": action, # created, updated, moved, deleted
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"data": task_data,
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"timestamp": task_data.get("updated_at")
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}
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await manager.broadcast(message)
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async def broadcast_agent_execution(execution_id: int, status: str, execution_data: dict):
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"""Broadcast agent execution update"""
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message = {
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"type": "agent_execution",
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"execution_id": execution_id,
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"status": status, # pending, running, completed, failed, pending_approval
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"data": execution_data,
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"timestamp": execution_data.get("started_at") or execution_data.get("completed_at")
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}
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await manager.broadcast(message)
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async def broadcast_agent_status(agent_id: str, status: str, message_text: str = ""):
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"""Broadcast agent status update"""
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message = {
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"type": "agent_status",
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"agent_id": agent_id,
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"status": status, # idle, working, error
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"message": message_text
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}
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await manager.broadcast(message)
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