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 for billing portal return URL." },
        { status: 500 }
      );
    }

    const session = await stripeClient.billingPortal.sessions.create({
      customer_account: accountId,
      return_url: `${baseUrl}/connect`,
    });

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