Post Instagram Reels from a Drive folder

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

IG_ID, REELS, POSTED, G = "17841400000000000", "folder-reels-id", "folder-posted-id", "https://graph.facebook.com/v21.0"

@on_trigger
def run(event):
    drive = build("drive", "v3", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False)
    files = drive.files().list(q=f"'{REELS}' in parents and mimeType contains 'video/'", orderBy="createdTime",
                               fields="files(id,name,description,webContentLink)", pageSize=1).execute()["files"]
    if not files:
        return {"posted": False}
    f = files[0]
    drive.permissions().create(fileId=f["id"], body={"type": "anyone", "role": "reader"}).execute()
    caption = ai.generate(f"Instagram Reel caption with 3 hashtags for a workout clip: {f['name']} {f.get('description', '')}",
                          max_output_tokens=120).text.strip()
    t = {"access_token": credentials.connection("facebook", "work")}
    c = http.post(f"{G}/{IG_ID}/media", data={**t, "media_type": "REELS", "video_url": f["webContentLink"], "caption": caption}).json()["id"]
    for _ in range(20):
        if http.get(f"{G}/{c}", params={**t, "fields": "status_code"}).json()["status_code"] == "FINISHED":
            break
        time.sleep(10)
    reel = http.post(f"{G}/{IG_ID}/media_publish", data={**t, "creation_id": c}).json()
    drive.permissions().delete(fileId=f["id"], permissionId="anyoneWithLink").execute()
    drive.files().update(fileId=f["id"], addParents=POSTED, removeParents=REELS).execute()
    return {"reel": reel.get("id")}