/**
 * Client-side vendor intake queue (no remote submission endpoint in this build).
 */

const KEY_QUEUE = "cyberlux-vendor-applications-v1";

export type VendorApplication = {
  id: string;
  ts: number;
  /** Signed-in account handle if any */
  accountUsername: string | null;
  desiredHandle: string;
  stallName: string;
  specialtyCategory: string;
  pitch: string;
  pgpFingerprint: string;
  deadDropNotes: string;
  acceptedSimulatorTerms: boolean;
};

function uid(): string {
  if (typeof crypto !== "undefined" && "randomUUID" in crypto) return crypto.randomUUID();
  return `va_${Date.now()}_${Math.random().toString(36).slice(2, 10)}`;
}

export function loadVendorApplications(): VendorApplication[] {
   if (typeof window === "undefined") return [];
  try {
    const raw = localStorage.getItem(KEY_QUEUE);
    if (!raw) return [];
    const v = JSON.parse(raw) as unknown;
    if (!Array.isArray(v)) return [];
    return v.filter(
      (x): x is VendorApplication =>
        x &&
        typeof x === "object" &&
        typeof (x as VendorApplication).id === "string" &&
        typeof (x as VendorApplication).desiredHandle === "string",
    );
  } catch {
    return [];
  }
}

export function appendVendorApplication(entry: Omit<VendorApplication, "id" | "ts">): VendorApplication {
  const row: VendorApplication = {
    ...entry,
    id: uid(),
    ts: Date.now(),
  };
  if (typeof window === "undefined") return row;
  const next = [row, ...loadVendorApplications()].slice(0, 50);
  localStorage.setItem(KEY_QUEUE, JSON.stringify(next));
  return row;
}

export function countVendorApplications(): number {
  return loadVendorApplications().length;
}