from sanic import Sanic
from sanic.response import html

import socketio

sio = socketio.AsyncServer(async_mode="sanic")
app = Sanic(__name__)
sio.attach(app)


@app.route("/")
def index(request):
    with open("latency.html") as f:
        return html(f.read())


@sio.event
async def ping_from_client(sid):
    await sio.emit("pong_from_server", room=sid)


app.static("/static", "./static")


if __name__ == "__main__":
    app.run()