Post a daily Trello deadline digest to Slack

from datetime import datetime, timedelta, timezone
from clickruntime import on_trigger, credentials, http, notify, ai

BOARD_ID = "your-board-id"

@on_trigger
def run(event):
    auth = {"key": credentials.secret("TRELLO_API_KEY"), "token": credentials.secret("TRELLO_TOKEN")}
    now = datetime.now(timezone.utc)
    cards = http.get(f"https://api.trello.com/1/boards/{BOARD_ID}/cards/open", params=auth).json()
    since = (now - timedelta(days=1)).isoformat()
    moves = http.get(f"https://api.trello.com/1/boards/{BOARD_ID}/actions", params={**auth, "filter": "updateCard:idList", "since": since}).json()
    due = [(c["name"], datetime.fromisoformat(c["due"].replace("Z", "+00:00"))) for c in cards if c.get("due") and not c.get("dueComplete")]
    overdue = [n for n, d in due if d < now]
    today = [n for n, d in due if d.date() == now.date() and d >= now]
    moved = [f"{a['data']['card']['name']} → {a['data']['listAfter']['name']}" for a in moves]
    text = "*Overdue*\n" + ("\n".join(overdue) or "None") + "\n*Due today*\n" + ("\n".join(today) or "None") + "\n*Moved yesterday*\n" + ("\n".join(moved) or "None")
    try:
        text = ai.generate(text, system="Write a two-sentence plain summary of this board for the team.", max_output_tokens=120).text + "\n\n" + text
    except ai.AIError:
        pass
    notify.slack(text, channel="#marketing")
    return {"overdue": len(overdue), "today": len(today), "moved": len(moved)}