export const name = "Apple";
export const url = "https://www.apple.com/support/systemstatus/";

const STATUS_URL =
  "https://www.apple.com/support/systemstatus/data/system_status_en_US.js";

// eventStatus values that mean the event is no longer active
const RESOLVED_STATUSES = new Set(["resolved", "completed"]);

// statusType → dashboard status (Performance issues = degraded, outages = outage)
function mapStatusType(statusType) {
  const t = (statusType ?? "").toLowerCase();
  if (t === "outage") return "outage";
  return "degraded"; // Performance, Maintenance, or anything else
}

export async function checkStatus() {
  const res = await fetch(STATUS_URL);

  if (!res.ok) {
    throw new Error(`Apple status request failed (${res.status})`);
  }

  const data = await res.json();
  const services = data.services ?? [];

  // Collect services with active (unresolved) events
  const affected = [];
  let overall = "operational";

  for (const svc of services) {
    const activeEvents = (svc.events ?? []).filter(
      (e) => !RESOLVED_STATUSES.has((e.eventStatus ?? "").toLowerCase())
    );

    if (activeEvents.length === 0) continue;

    for (const event of activeEvents) {
      const mapped = mapStatusType(event.statusType);
      if (mapped === "outage" || overall === "operational") {
        overall = mapped;
      }
      affected.push(`${svc.serviceName}: ${event.message ?? event.statusType}`);
    }
  }

  const message =
    affected.length > 0
      ? affected.join(" | ")
      : "All services operating normally.";

  return {
    name,
    status: overall,
    message,
    lastUpdated: new Date().toISOString(),
  };
}