import asyncio
import time

import socketio

loop = asyncio.get_event_loop()
sio = socketio.AsyncClient()
start_timer = None


async def send_ping():
    global start_timer
    start_timer = time.time()
    await sio.emit("ping_from_client")


@sio.event
async def connect():
    print("connected to server")
    await send_ping()


@sio.event
async def pong_from_server():
    latency = time.time() - start_timer
    print(f"latency is {latency * 1000:.2f} ms")
    await sio.sleep(1)
    if sio.connected:
        await send_ping()


async def start_server():
    await sio.connect("http://localhost:5000")
    await sio.wait()


if __name__ == "__main__":
    loop.run_until_complete(start_server())