Announce new feed items in Teams and by email

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

FEED, TEAM_ID, CHANNEL_ID = "https://www.example.com/feed.xml", "your-team-id", "your-channel-id"
SUBSCRIBERS = ["reader@example.com"]

@on_trigger
def run(event):
    seen = state.get("seen") or []
    items = [e for e in feedparser.parse(http.get(FEED).text).entries if e.link not in seen]
    report_fetched(len(items))
    if not items:
        return {"new": 0}
    gmail = build("gmail", "v1", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False)
    for e in items:
        try:
            blurb = ai.generate(f"One sentence summary of: {e.title}. {e.get('summary', '')[:1500]}", max_output_tokens=60).text.strip()
        except ai.AIError:
            blurb = e.get("summary", "")[:200]
        http.post(f"https://graph.microsoft.com/v1.0/teams/{TEAM_ID}/channels/{CHANNEL_ID}/messages",
                  headers={"Authorization": f"Bearer {credentials.connection('microsoft', 'work')}"},
                  json={"body": {"contentType": "html", "content": f"<b>New:</b> <a href='{e.link}'>{e.title}</a><br>{blurb}"}})
        msg = MIMEText(f"{blurb}\n\n{e.link}")
        msg["Bcc"], msg["Subject"] = ", ".join(SUBSCRIBERS), e.title
        gmail.users().messages().send(userId="me", body={"raw": base64.urlsafe_b64encode(msg.as_bytes()).decode()}).execute()
        seen.append(e.link)
    state.set("seen", seen[-500:])
    return {"new": len(items)}