"""
WebSocket connection manager — handles multiple simultaneous clients.
"""
from fastapi import WebSocket
from typing import List

class ConnectionManager:
    def __init__(self):
        self.active_connections: List[WebSocket] = []

    async def connect(self, websocket: WebSocket):
        await websocket.accept()
        self.active_connections.append(websocket)

    def disconnect(self, websocket: WebSocket):
        self.active_connections.remove(websocket)

    async def broadcast_json(self, data: dict):
        for connection in self.active_connections:
            await connection.send_json(data)

    async def broadcast_bytes(self, data: bytes):
        for connection in self.active_connections:
            await connection.send_bytes(data)