cit-is-bot-backend/api/main.py

import asyncio
import os

from fastapi import FastAPI
from fastapi.responses import HTMLResponse
from fastapi.websockets import WebSocket, WebSocketDisconnect

import config


class ConnectionManager:
    connections: list[WebSocket]

    class StateError(Exception):
        pass

    def __init__(
            self,
    ):
        self.connections = []

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

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

    async def broadcast(
            self,
            data: any,
    ):
        for connection in self.connections:
            asyncio.ensure_future(connection.send_json(data))


connection_manager = ConnectionManager()


api = FastAPI(
    title=config.Main.app_name,
)

scripts = [
    {
        'id': 1,
        'name': 'Текущее состояние сотрудников',
        'time': '0 11 * * 1-5',
        'messageNumber': '1 вопрос',
        'isEnabled': True,
    },
    {
        'id': 2,
        'name': 'Планы на обед',
        'time': '45 11 * * 1-5',
        'messageNumber': '2 вопроса',
        'isEnabled': False,
    },
]


@api.websocket(
    path='/ws/scripts',
)
async def _(
        websocket: WebSocket,
):
    await connection_manager.connect(websocket)
    try:
        await connection_manager.broadcast(scripts)
        while True:
            await connection_manager.broadcast(await websocket.receive_json())
    except WebSocketDisconnect:
        connection_manager.disconnect(websocket)