import { NextResponse } from "next/server";
import { getShippingOptions } from "@/lib/medusa";
import { isNonEmptyString, isValidMedusaId, badRequest } from "@/lib/apiUtils";

// GET /api/checkout/shipping-options?cartId=cart_xxx
export async function GET(request: Request) {
  const { searchParams } = new URL(request.url);
  const cartId = searchParams.get("cartId");
  if (!isNonEmptyString(cartId)) {
    return badRequest("Missing cartId");
  }
  if (!isValidMedusaId(cartId)) {
    return badRequest("Invalid cart ID format");
  }
  try {
    const options = await getShippingOptions(cartId);
    return NextResponse.json(options);
  } catch (e) {
    console.error("[checkout:shipping-options]", (e as Error).message);
    return NextResponse.json({ error: "Failed to fetch shipping options" }, { status: 500 });
  }
}