import { NextResponse } from "next/server";

// GET /api/uploads — list uploaded files. Returns 501 until storage is configured.
export async function GET() {
  const haveR2 = process.env.R2_ACCESS_KEY_ID && process.env.R2_BUCKET && process.env.R2_ENDPOINT;
  if (!haveR2) {
    return NextResponse.json([], { status: 501 });
  }
  return NextResponse.json([]);
}

// POST /api/uploads (docs/04) — issue a presigned R2 PUT URL. Env-guarded:
// returns 501 until R2 storage is configured, and until presign generation
// is implemented — a configured-but-unimplemented state must not report
// success. Client then PUTs the file directly.
export async function POST() {
  const haveR2 = process.env.R2_ACCESS_KEY_ID && process.env.R2_BUCKET && process.env.R2_ENDPOINT;
  if (!haveR2) {
    return NextResponse.json(
      { error: { code: "storage_not_configured", message: "Filuppladdning aktiveras när R2/Blob är kopplat" } },
      { status: 501 },
    );
  }
  // TODO: presigned PUT generation not implemented yet — keep returning 501
  // instead of a fake 200/null success shape until real R2 presign wiring exists.
  return NextResponse.json(
    { error: { code: "storage_not_configured", message: "Presignerad uppladdning är inte implementerad än" } },
    { status: 501 },
  );
}