Get today's and overdue Google Tasks in Slack each morning

from datetime import date, timedelta
from google.oauth2.credentials import Credentials
from googleapiclient.discovery import build
from clickruntime import on_trigger, credentials, notify, ai, log

@on_trigger
def run(event):
    tasks = build("tasks", "v1", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False)
    end = (date.today() + timedelta(days=1)).isoformat() + "T00:00:00.000Z"
    items = tasks.tasks().list(tasklist="@default", showCompleted=False, dueMax=end).execute().get("items", [])
    if not items:
        return {"due": 0}
    today = date.today().isoformat()
    due = [t["title"] for t in items if t["due"][:10] == today]
    late = [f"{t['title']} (due {t['due'][:10]})" for t in items if t["due"][:10] < today]
    text = ""
    if due:
        text += "*Due today*\n" + "\n".join(f"• {t}" for t in due) + "\n"
    if late:
        text += "*Overdue*\n" + "\n".join(f"• {t}" for t in late) + "\n"
    try:
        text += "\n" + ai.generate(f"In one short sentence, suggest which task to start with and why:\n{text}",
                                   max_output_tokens=60).text.strip()
    except (ai.AINotIncluded, ai.AILimitReached) as e:
        log.warning("AI unavailable, posting the plain list", {"code": e.code})
    notify.slack(text, channel="#my-day")
    return {"due": len(due), "overdue": len(late)}