import { NextResponse } from "next/server";
import { minioClient, MINIO_BUCKET } from "@/lib/minio";

export const runtime = "nodejs";

export async function GET(_request: Request, { params }: { params: Promise<{ key: string[] }> }) {
  const { key } = await params;
  const objectKey = key.join("/");

  try {
    const stat = await minioClient.statObject(MINIO_BUCKET, objectKey);
    const stream = await minioClient.getObject(MINIO_BUCKET, objectKey);

    const chunks: Buffer[] = [];
    for await (const chunk of stream) {
      chunks.push(Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk as Uint8Array));
    }
    const buffer = Buffer.concat(chunks);

    const metaData = stat.metaData as Record<string, string> | undefined;
    const contentType =
      metaData?.["content-type"] ?? metaData?.["Content-Type"] ?? "application/octet-stream";

    return new Response(buffer, {
      headers: {
        "Content-Type": contentType,
        "Cache-Control": "public, max-age=31536000, immutable",
        "Content-Length": String(buffer.length),
      },
    });
  } catch {
    return NextResponse.json({ error: "Not found" }, { status: 404 });
  }
}