// app/api/directus/fields/route.ts
import { NextRequest } from "next/server";
import { directusAdminFetch } from "@/lib/directus";

export const dynamic = "force-dynamic";

export async function GET(req: NextRequest) {
    const { searchParams } = new URL(req.url);
    const collection = searchParams.get("collection")?.trim();
    if (!collection) {
        return Response.json({ error: "Missing ?collection" }, { status: 400 });
    }

    try {
        // Preferred endpoint
        const res = await directusAdminFetch<any>(`/fields/${encodeURIComponent(collection)}`);
        const data = Array.isArray(res?.data) ? res.data : Array.isArray(res) ? res : [];
        return Response.json({ data });
    } catch {
        // Fallback (some Directus setups restrict the path variant)
        const qs = new URLSearchParams({ "filter[collection][_eq]": collection });
        const fb = await directusAdminFetch<any>(`/fields?${qs.toString()}`);
        const data = Array.isArray(fb?.data) ? fb.data : Array.isArray(fb) ? fb : [];
        return Response.json({ data });
    }
}