import { NextResponse } from "next/server";
import { parseHuggingFaceRef } from "@/lib/model-ref";

export const runtime = "nodejs";
export const dynamic = "force-dynamic";

const controlPlaneUrl = (
  process.env.LUMBRIDGE_CONTROL_PLANE_URL ?? "http://127.0.0.1:8902"
).replace(/\/+$/, "");

/**
 * Record a Hugging Face model suggestion for Karti to review manually.
 *
 * This endpoint only forwards an inert review record to the Lumbridge control
 * plane. Neither service downloads, imports, schedules, or executes a model.
 */

export async function POST(req: Request) {
  let body: { model?: string; notes?: string };
  try {
    body = await req.json();
  } catch {
    return NextResponse.json({ error: "invalid JSON" }, { status: 400 });
  }

  const ref = parseHuggingFaceRef(body.model ?? "");
  if (!ref) {
    return NextResponse.json(
      { error: "Expected a Hugging Face model reference like `owner/model`." },
      { status: 400 },
    );
  }

  try {
    const response = await fetch(`${controlPlaneUrl}/api/model-suggestions`, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({
        sourceUrl: `https://huggingface.co/${ref}`,
        reason: "Suggested via Lumbridge Bench for manual model review.",
        notes: (body.notes ?? "").slice(0, 2000) || undefined,
      }),
      cache: "no-store",
      signal: AbortSignal.timeout(5_000),
    });
    if (!response.ok) {
      const result = await response.json().catch(() => null) as {
        error?: string;
      } | null;
      return NextResponse.json(
        {
          error:
            result?.error ??
            "The Lumbridge review inbox could not accept that suggestion.",
        },
        { status: response.status },
      );
    }
  } catch {
    return NextResponse.json(
      { error: "The Lumbridge review inbox is temporarily unavailable." },
      { status: 503 },
    );
  }

  return NextResponse.json({
    ok: true,
    model: ref,
    message:
      "Suggestion received. Karti reviews every model manually. Nothing is " +
      "downloaded or run automatically; approved results appear on the board later.",
  });
}