/**
 * set_shipping — fija el método de envío.
 */

export async function setShippingTool(args, ctx) {
  const { method } = args;
  if (method !== "delivery" && method !== "pickup") {
    return { ok: false, error: "invalid_method" };
  }
  ctx.order = { ...ctx.order, is_delivery: method === "delivery" };
  return { ok: true, method, requires_address: method === "delivery" && !ctx.order.shipping_address };
}