import { NextRequest, NextResponse } from "next/server";

const BACKEND = process.env.HERMES_BACKEND_URL || "http://127.0.0.1:8643";

async function proxy(method: string, req: NextRequest) {
  const qs = req.nextUrl.search;
  const body = method !== "GET" ? await req.text() : undefined;
  try {
    const res = await fetch(BACKEND + "/api/memory" + qs, {
      method,
      headers: body ? { "Content-Type": "application/json" } : {},
      body,
    });
    const data = await res.text();
    return new NextResponse(data, {
      status: res.status,
      headers: { "content-type": "application/json" },
    });
  } catch {
    return NextResponse.json({ error: "backend unreachable" }, { status: 502 });
  }
}

export async function GET(req: NextRequest) { return proxy("GET", req); }
export async function POST(req: NextRequest) { return proxy("POST", req); }
export async function PATCH(req: NextRequest) { return proxy("PATCH", req); }
export async function DELETE(req: NextRequest) { return proxy("DELETE", req); }