Announce new blog posts in Discord and Teams

import feedparser
from clickruntime import on_trigger, credentials, http, state, ai, report_fetched

FEED = "https://blog.example.com/feed.xml"
DISCORD_CHANNEL = "your-discord-channel-id"
TEAM_ID, TEAMS_CHANNEL = "your-team-id", "your-teams-channel-id"

@on_trigger
def run(event):
    seen = set(state.get("seen") or [])
    new = [e for e in feedparser.parse(http.get(FEED).content).entries if e.link not in seen]
    report_fetched(len(new))
    if not new:
        return {"new": 0}
    for post in reversed(new[:10]):
        try:
            summary = ai.generate(f"Summarise in two sentences for readers:\n{post.title}\n{post.get('summary', '')[:2000]}", max_output_tokens=120).text
        except ai.AIError:
            summary = ""
        text = f"New post: {post.title}\n{summary}\n{post.link}".replace("\n\n", "\n")
        http.post(f"https://discord.com/api/v10/channels/{DISCORD_CHANNEL}/messages", json={"content": text},
                  headers={"Authorization": f"Bot {credentials.secret('DISCORD_BOT_TOKEN')}"})
        http.post(f"https://graph.microsoft.com/v1.0/teams/{TEAM_ID}/channels/{TEAMS_CHANNEL}/messages",
                  headers={"Authorization": f"Bearer {credentials.connection('microsoft', 'work')}"},
                  json={"body": {"contentType": "text", "content": text}})
        seen.add(post.link)
    state.set("seen", list(seen)[-500:])
    return {"announced": min(len(new), 10)}