artifacts/api-server/src/routes/neo.ts

import { Router } from "express";
import { requireApiKey } from "../middlewares/auth.js";

const router = Router();
const NEO_REST_URL = "http://localhost:5001";

router.post("/neo/chat", requireApiKey, async (req, res) => {
  const { message, history = [] } = req.body as {
    message?: string;
    history?: Array<{ role: string; content: string }>;
  };

  if (!message || typeof message !== "string" || !message.trim()) {
    res.status(400).json({ error: "The 'message' field is required." });
    return;
  }

  try {
    const response = await fetch(`${NEO_REST_URL}/chat`, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ message: message.trim(), history }),
    });

    if (!response.ok) {
      const err = await response.text();
      res.status(502).json({ error: "NEO-1 model error.", detail: err });
      return;
    }

    const data = await response.json() as { response: string; model: string; status: string };
    res.json({
      response: data.response,
      model:    data.model ?? "mdfjbots-neo-1",
      status:   "ok",
    });
  } catch (err: any) {
    res.status(503).json({
      error:  "Could not connect to the NEO-1 model. Is it running?",
      detail: err?.message ?? String(err),
    });
  }
});

router.get("/neo/models", requireApiKey, (_req, res) => {
  res.json({
    models: [
      {
        id:          "mdfjbots-neo-1",
        name:        "NEO-1",
        description: "Conversational assistant with Roblox support, calculator, and educational topics.",
        version:     "1.13.1",
      },
    ],
  });
});

export default router;