Share new blog posts on Facebook and get an email

import base64
import feedparser
from google.oauth2.credentials import Credentials
from googleapiclient.discovery import build
from clickruntime import on_trigger, credentials, http, ai, state, report_fetched

PAGE_ID = "1234567890"

@on_trigger
def run(event):
    shared = state.get("shared") or []
    new = [e for e in feedparser.parse("https://northwind-garden.example/blog/feed").entries if e.link not in shared]
    report_fetched(len(new))
    if not new:
        return {"summary": "No new articles"}
    gmail = build("gmail", "v1", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False)
    for e in new:
        caption = ai.generate(f"Two-sentence Facebook caption for: {e.title}", max_output_tokens=100).text.strip()
        post = http.post(f"https://graph.facebook.com/v21.0/{PAGE_ID}/feed",
                         data={"message": caption, "link": e.link, "access_token": credentials.connection("facebook", "work")}).json()
        raw = f"To: me\r\nSubject: Shared: {e.title}\r\n\r\n{caption}\nhttps://facebook.com/{post['id']}"
        gmail.users().messages().send(userId="me", body={"raw": base64.urlsafe_b64encode(raw.encode()).decode()}).execute()
        shared.append(e.link)
    state.set("shared", shared[-300:])
    return {"shared": len(new)}