Get today's schedule by text each morning

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

MY_PHONE = "+447700900123"
FROM = "+15005550006"

def sms(to, body):
    return Client(credentials.secret("TWILIO_ACCOUNT_SID"), credentials.secret("TWILIO_AUTH_TOKEN")).messages.create(to=to, from_=FROM, body=body)
cal = lambda: build("calendar", "v3", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False).events()

@on_trigger
def run(event):
    start = datetime.now(timezone.utc).replace(hour=0, minute=0, second=0)
    items = cal().list(calendarId="primary", timeMin=start.isoformat(), timeMax=(start + timedelta(days=1)).isoformat(),
                       singleEvents=True, orderBy="startTime").execute()["items"]
    lines = [f"{e['start'].get('dateTime', 'All day')[11:16] or 'All day'} {e.get('summary', 'Busy')}"
             + (f" @ {e['location']}" if e.get("location") else "") for e in items]
    text = "Today: " + ("; ".join(lines) if lines else "nothing scheduled")
    if len(text) > 300:
        try:
            text = ai.generate(text, system="Shorten this schedule to under 300 characters, keep times.", max_output_tokens=100).text.strip()
        except ai.AIError:
            text = text[:300]
    sms(MY_PHONE, text)
    return {"events": len(items)}