from flask import Blueprint, jsonify
from flask_login import login_required, current_user
from app.db import get_db

presence_bp = Blueprint("presence", __name__)

def _mark_current_user_online() -> None:
    db = get_db()
    db.execute(
        "UPDATE users SET last_seen_at = CURRENT_TIMESTAMP WHERE id = ?",
        (current_user.id,),
    )
    db.commit()


@presence_bp.route("/api/presence/ping", methods=["POST"])
@login_required
def presence_ping():
    if not current_user.is_authenticated: # should not happen due to @login_required, but just in case
        return ("", 204)

    _mark_current_user_online()
    return jsonify({"status": "ok"})