import { normalizeWarning } from "@/lib/weather-utils";
import type { RawWarning, WeatherWarning } from "@/types/imgw";

const IMGW_WARNINGS_METEO_URL = "https://danepubliczne.imgw.pl/api/data/warningsmeteo";

export async function fetchMeteoWarnings(signal?: AbortSignal): Promise<WeatherWarning[]> {
  const response = await fetch(IMGW_WARNINGS_METEO_URL, {
    headers: { accept: "application/json" },
    next: { revalidate: 300 },
    signal,
  });
  if (!response.ok) throw new Error("Unable to load IMGW meteorological warnings.");
  const rows = await response.json() as RawWarning[];
  return Array.isArray(rows) ? rows.map((warning, index) => normalizeWarning(warning, "meteo", index)) : [];
}