Post failure and alert emails to a Discord channel

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

QUERY = "(failed OR error OR alert) newer_than:1d"
CHANNEL_ID = "your-discord-channel-id"

@on_trigger
def run(event):
    gmail = build("gmail", "v1", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False)
    seen = state.get("seen") or []
    ids = [m["id"] for m in gmail.users().messages().list(userId="me", q=QUERY, maxResults=50).execute().get("messages", [])]
    new = [i for i in ids if i not in seen]
    report_fetched(len(new))
    if not new:
        return {"new": 0}
    for mid in reversed(new):
        m = gmail.users().messages().get(userId="me", id=mid, format="metadata", metadataHeaders=["From", "Subject"]).execute()
        h = {x["name"]: x["value"] for x in m["payload"]["headers"]}
        http.post(f"https://discord.com/api/v10/channels/{CHANNEL_ID}/messages",
                  headers={"Authorization": f"Bot {credentials.secret('DISCORD_BOT_TOKEN')}"},
                  json={"content": f"**{h.get('Subject', '')}**\nFrom: {h.get('From', '')}\n{m.get('snippet', '')[:300]}"})
    state.set("seen", (seen + new)[-500:])
    return {"new": len(new)}