// Tenant Registry client — fetches tenant data from the Go service.
// Skeleton-mode: read-only by-slug lookup. The portal middleware uses this
// to resolve `<slug>.localhost:3000` → tenant context before rendering.

export type Tenant = {
  id: string;
  slug: string;
  name: string;
  status: "active" | "trial" | "frozen" | "archived" | "demo";
  plan: "starter" | "professional" | "enterprise";
  products: string[];
  created_at: string;
};

function baseUrl(): string {
  return process.env.TENANT_REGISTRY_URL ?? "http://localhost:8080";
}

export async function fetchTenantBySlug(slug: string): Promise<Tenant | null> {
  const res = await fetch(`${baseUrl()}/v1/tenants/by-slug/${encodeURIComponent(slug)}`, {
    headers: { accept: "application/json" },
    cache: "no-store",
  });
  if (res.status === 404) return null;
  if (!res.ok) {
    throw new Error(`tenant-registry: ${res.status} ${res.statusText}`);
  }
  return (await res.json()) as Tenant;
}