from fastapi import FastAPI

from songmam import WebhookHandler, MessengerApi
from songmam.models.webhook import MessagesEvent

app = FastAPI(
    title="echo"
)


handler = WebhookHandler(
    app=app, path="/webhook", app_secret=FACEBOOK_APP_SECRET, verify_token=FACEBOOK_PAGE_VERIFY_TOKEN
)

api = MessengerApi(access_token=FACEBOOK_PAGE_ACCESS_TOKEN)


@handler.add(MessagesEvent)
async def handle_message(event: MessagesEvent, *args, **kwargs):
    """
    echo back message
    """
    await api.send(event.theMessaging.sender, event.theMessaging.message.text)