import { NextResponse } from "next/server";

/**
 * POST /api/billing/auto-charge — RETIRED.
 *
 * Auto-pay is no longer a customer-toggleable setting. A saved
 * card on file is the consent to auto-bill; customers manage their
 * card via update/remove on /settings/billing, nothing else. The
 * auto_charge_enabled flag is now an admin-only pause used during
 * disputes, set from /admin/billing/orgs.
 *
 * This route is kept as an explicit 410 (Gone) so any stale client
 * that still POSTs here fails loudly rather than silently toggling
 * a flag the customer shouldn't control. The old behaviour lived
 * here through Phase 9b-2.
 */
export async function POST() {
  return NextResponse.json(
    {
      error:
        "Auto-pay can no longer be disabled. A saved card is required for service. " +
        "Contact support if you need to switch to bank-transfer billing.",
      code: "auto_pay_not_toggleable",
    },
    { status: 410 }
  );
}