Get a Telegram alert for new files in a Google Drive folder

from google.oauth2.credentials import Credentials
from googleapiclient.discovery import build
from clickruntime import on_trigger, credentials, http, state

FOLDER_ID, CHAT_ID = "your-folder-id", "123456789"

def tg(method, **params):
    r = http.post(f"https://api.telegram.org/bot{credentials.secret('TELEGRAM_BOT_TOKEN')}/{method}", json=params)
    r.raise_for_status()
    return r.json()["result"]

@on_trigger
def run(event):
    drive = build("drive", "v3", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False)
    since = state.get("since") or event.get("scheduled_time")
    seen = set(state.get("seen") or [])
    files = drive.files().list(q=f"'{FOLDER_ID}' in parents and trashed = false and createdTime > '{since}'",
                               orderBy="createdTime", fields="files(id,name,size,createdTime,webViewLink,lastModifyingUser(emailAddress))").execute().get("files", [])
    new = [f for f in files if f["id"] not in seen]
    for f in new:
        who = (f.get("lastModifyingUser") or {}).get("emailAddress", "unknown")
        size = f" ({int(f['size']) / 1e6:.1f} MB)" if f.get("size") else ""
        tg("sendMessage", chat_id=CHAT_ID, text=f"📁 New in your folder\n{f['name']}{size}\nAdded by {who}\n{f['webViewLink']}")
        seen.add(f["id"])
    if files:
        since = files[-1]["createdTime"]
    state.set("since", since)
    state.set("seen", list(seen)[-500:])
    return {"new": len(new)}