"""GNSS/GPS endpoints."""
from flask import Blueprint, jsonify
from .. import redis_client

bp = Blueprint("gnss", __name__, url_prefix="/api/1/gnssConcise")


@bp.route("/latestValid", methods=["GET"])
def latest_valid():
    """Get current GPS fix from Redis."""
    gnss = redis_client.get_latest_gnss()
    if gnss:
        return jsonify(gnss)
    return jsonify({"error": "No valid GPS fix"}), 503