Prepare a lesson plan for each of tomorrow's classes

from google.oauth2.credentials import Credentials
from googleapiclient.discovery import build
from datetime import datetime, timedelta, timezone
from googleapiclient.http import MediaInMemoryUpload
from clickruntime import on_trigger, credentials, ai

FOLDER_ID = "your-lessons-folder-id"

@on_trigger
def run(event):
    creds = Credentials(credentials.connection("google", "work"))
    cal = build("calendar", "v3", credentials=creds, cache_discovery=False).events()
    drive = build("drive", "v3", credentials=creds, cache_discovery=False)
    day = datetime.now(timezone.utc).replace(hour=0, minute=0, second=0, microsecond=0) + timedelta(days=1)
    items = cal.list(calendarId="primary", timeMin=day.isoformat(), timeMax=(day + timedelta(days=1)).isoformat(),
                     singleEvents=True, q="Lesson").execute().get("items", [])
    made = 0
    for e in items:
        if "docs.google.com" in e.get("description", ""):
            continue
        plan = ai.generate(f"Write a lesson plan (goals, warm-up, main activity, practice, wrap-up) for: "
                           f"{e['summary']}. {e.get('description', '')}", max_output_tokens=1200).text
        doc = drive.files().create(body={"name": f"{day:%Y-%m-%d} {e['summary']}", "parents": [FOLDER_ID],
                                         "mimeType": "application/vnd.google-apps.document"},
                                   media_body=MediaInMemoryUpload(plan.encode(), "text/plain"), fields="id,webViewLink").execute()
        cal.patch(calendarId="primary", eventId=e["id"],
                  body={"description": f"{e.get('description', '')}\n\nPlan: {doc['webViewLink']}"}).execute()
        made += 1
    return {"lessons": len(items), "plans": made}