Get an email when a file is shared with you in Google Drive

from clickruntime import on_trigger, credentials, http, state, notify

def drive(path, **params):
    resp = http.get(f"https://www.googleapis.com/drive/v3{path}", params=params,
                    headers={"Authorization": f"Bearer {credentials.connection('google', 'work')}"})
    resp.raise_for_status()
    return resp.json()

KIND = {"application/vnd.google-apps.document": "Google Docs", "application/vnd.google-apps.spreadsheet": "Google Sheets",
        "application/vnd.google-apps.presentation": "Google Slides", "application/vnd.google-apps.folder": "folder",
        "application/pdf": "PDF"}

@on_trigger
def run(event):
    files = drive("/files", q="sharedWithMe and trashed = false", orderBy="sharedWithMeTime desc", pageSize=50,
                  fields="files(id,name,mimeType,webViewLink,sharedWithMeTime,sharingUser(displayName,emailAddress))")["files"]
    seen = state.get("seen")
    state.set("seen", [f["id"] for f in files])
    if seen is None:
        return {"baseline": len(files)}
    new = [f for f in files if f["id"] not in set(seen)]
    if not new:
        return {"new": 0}
    parts = []
    for f in reversed(new):
        who = (f.get("sharingUser") or {}).get("displayName", "someone")
        parts.append(f"{f['name']} ({KIND.get(f['mimeType'], f['mimeType'].split('/')[-1])}) from {who}\n{f['webViewLink']}")
    notify.email_me(f"{len(new)} new file{'s' if len(new) > 1 else ''} shared with you in Drive", "\n\n".join(parts))
    return {"new": len(new)}