rhl-lieferscheine/app/api/branches/route.js

import { NextResponse } from "next/server";
import { listBranches } from "@/lib/storage";

/**
 * GET /api/branches
 *
 * Returns the list of branches (e.g. ["NL01", "NL02", ...]) based on the
 * directory names under NAS_ROOT_PATH.
 */
export async function GET() {
	try {
		const branches = await listBranches();

		return NextResponse.json({ branches });
	} catch (error) {
		// Log the full error on the server for debugging
		console.error("[api/branches] Error reading branches:", error);

		// Return a generic error message to the client
		return NextResponse.json(
			{ error: "Fehler beim Lesen der Niederlassungen" },
			{ status: 500 }
		);
	}
}