Send finished files from Drive to people on WhatsApp

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

OUTBOX, SENT = "outbox-folder-id", "sent-folder-id"
PHONE_ID = "your-phone-number-id"
drive = lambda: build("drive", "v3", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False)

@on_trigger
def run(event):
    files = drive().files().list(q=f"'{OUTBOX}' in parents and trashed=false", fields="files(id,name,mimeType)").execute()["files"]
    files = [f for f in files if f["name"].split(" ")[0].isdigit()]
    report_fetched(len(files))
    if not files:
        return {"summary": "Nothing to send"}
    h = {"Authorization": f"Bearer {credentials.secret('WHATSAPP_TOKEN')}"}
    for f in files:
        data = drive().files().get_media(fileId=f["id"]).execute()
        media_id = http.post(f"https://graph.facebook.com/v20.0/{PHONE_ID}/media", headers=h, data={"messaging_product": "whatsapp"},
                             files={"file": (f["name"], data, f["mimeType"])}).json()["id"]
        http.post(f"https://graph.facebook.com/v20.0/{PHONE_ID}/messages", headers=h, json={"messaging_product": "whatsapp",
                  "to": f["name"].split(" ")[0], "type": "document", "document": {"id": media_id, "filename": f["name"].split(" ", 1)[-1]}}).raise_for_status()
        drive().files().update(fileId=f["id"], addParents=SENT, removeParents=OUTBOX).execute()
    return {"sent": len(files)}