import { NextResponse } from "next/server";
import { stripeClient } from "../../../../../lib/stripeClient";

export async function POST(req: Request) {
  try {
    const body = await req.json();
    const accountId = body.accountId as string;

    if (!accountId) {
      return NextResponse.json({ error: "accountId is required." }, { status: 400 });
    }

    const baseUrl = process.env.NEXT_PUBLIC_BASE_URL;
    if (!baseUrl) {
      return NextResponse.json(
        {
          error:
            "Missing NEXT_PUBLIC_BASE_URL. Set it so we can build return/refresh URLs.",
        },
        { status: 500 }
      );
    }

    const accountLink = await stripeClient.v2.core.accountLinks.create({
      account: accountId,
      use_case: {
        type: "account_onboarding",
        account_onboarding: {
          configurations: ["merchant", "customer"],
          refresh_url: `${baseUrl}/connect`,
          return_url: `${baseUrl}/connect?accountId=${accountId}`,
        },
      },
    });

    return NextResponse.json({ url: accountLink.url });
  } catch (err: any) {
    return NextResponse.json(
      { error: err?.message || "Failed to create account link." },
      { status: 500 }
    );
  }
}