Turn new Drive images and videos into paused Meta ads

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

ACT, ADSET, PAGE_ID, FOLDER = "act_1234567890", "120200000000000", "1234567890", "folder-creatives-id"
G = f"https://graph.facebook.com/v21.0/{ACT}"

@on_trigger
def run(event):
    drive = build("drive", "v3", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False)
    seen = state.get("seen") or []
    files = [f for f in drive.files().list(q=f"'{FOLDER}' in parents", fields="files(id,name,mimeType)").execute()["files"] if f["id"] not in seen]
    report_fetched(len(files))
    if not files:
        return {"summary": "No new creatives"}
    t, link = {"access_token": credentials.connection("facebook", "work")}, {"link": "https://northwind.example/shop", "message": "New season, new favourites."}
    for f in files:
        data = drive.files().get_media(fileId=f["id"]).execute()
        if f["mimeType"].startswith("video/"):
            vid = http.post(f"{G}/advideos", data=t, files={"source": data}).json()["id"]
            spec = {"page_id": PAGE_ID, "video_data": {"video_id": vid, "message": link["message"], "call_to_action": {"type": "SHOP_NOW", "value": {"link": link["link"]}}}}
        else:
            img = http.post(f"{G}/adimages", data=t, files={"filename": data}).json()["images"]
            spec = {"page_id": PAGE_ID, "link_data": {**link, "image_hash": next(iter(img.values()))["hash"]}}
        creative = http.post(f"{G}/adcreatives", json={**t, "object_story_spec": spec}).json()["id"]
        http.post(f"{G}/ads", data={**t, "name": f["name"], "adset_id": ADSET, "creative": f'{{"creative_id":"{creative}"}}', "status": "PAUSED"})
        seen.append(f["id"])
    notify.slack(f"{len(files)} new paused ads ready to review: " + ", ".join(f["name"] for f in files), channel="#marketing")
    state.set("seen", seen[-1000:])
    return {"created": len(files)}