Publish planned posts to Instagram and Facebook with email results

import base64
from datetime import datetime, timezone
from google.oauth2.credentials import Credentials
from googleapiclient.discovery import build
from clickruntime import on_trigger, credentials, http, state

PAGE_ID, IG_ID, G = "1234567890", "17841400000000000", "https://graph.facebook.com/v21.0"

@on_trigger
def run(event):
    plan = state.get("plan") or []
    due = next((p for p in plan if not p.get("status") and p["time"] <= datetime.now(timezone.utc).isoformat()), None)
    if not due:
        return {"posted": False}
    t = {"access_token": credentials.connection("facebook", "work")}
    try:
        c = http.post(f"{G}/{IG_ID}/media", data={**t, "image_url": due["image"], "caption": due["caption"]}).json()["id"]
        ig = http.post(f"{G}/{IG_ID}/media_publish", data={**t, "creation_id": c}).json()["id"]
        fb = http.post(f"{G}/{PAGE_ID}/photos", data={**t, "url": due["image"], "caption": due["caption"]}).json()["id"]
        due["status"], body = "done", f"Published. Instagram {ig}, Facebook {fb}."
    except Exception as e:
        due["status"], body = "failed", f"Failed: {e}"
    gmail = build("gmail", "v1", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False)
    raw = f"To: me\r\nSubject: Post {due['status']}: {due['caption'][:60]}\r\n\r\n{body}"
    gmail.users().messages().send(userId="me", body={"raw": base64.urlsafe_b64encode(raw.encode()).decode()}).execute()
    state.set("plan", plan)
    return {"status": due["status"]}