Answer Facebook comments and messages from your FAQ in Drive

import time
from google.oauth2.credentials import Credentials
from googleapiclient.discovery import build
from clickruntime import on_event, credentials, http, ai, state

FAQ_DOC, PAGE_ID, G = "faq-doc-id", "1234567890", "https://graph.facebook.com/v21.0"

@on_event
def handle(event):
    entry = (event.json or {}).get("entry", [{}])[0]
    change = (entry.get("changes") or [{}])[0].get("value", {})
    msg = (entry.get("messaging") or [{}])[0]
    text = change.get("message") or msg.get("message", {}).get("text")
    if not text or change.get("from", {}).get("id") == PAGE_ID:
        return {"skipped": True}
    cache = state.get("faq") or {}
    if time.time() - cache.get("at", 0) > 3600:
        drive = build("drive", "v3", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False)
        cache = {"at": time.time(), "text": drive.files().export(fileId=FAQ_DOC, mimeType="text/plain").execute().decode()[:15000]}
        state.set("faq", cache)
    r = ai.generate(f"FAQ:\n{cache['text']}\n\nQuestion: {text[:500]}\nReply briefly using only the FAQ, or say NONE.",
                    max_output_tokens=200).text.strip()
    if r == "NONE":
        return {"answered": False}
    t = {"access_token": credentials.connection("facebook", "work")}
    if change.get("comment_id"):
        http.post(f"{G}/{change['comment_id']}/comments", data={**t, "message": r})
    else:
        http.post(f"{G}/{PAGE_ID}/messages", json={**t, "recipient": {"id": msg["sender"]["id"]}, "message": {"text": r}})
    return {"answered": True}