server.js

const express = require("express");
const cors = require("cors");
const ollama = require("ollama").default;

const app = express();

app.use(cors());
app.use(express.json());

app.get("/", (req, res) => {
    res.sendFile(__dirname + "/index.html");
});

app.post("/command", async (req, res) => {

    const { query } = req.body;

    const prompt = `
You are a Linux expert.

Convert the user's request into ONE Linux command.

Rules:
- Output only the command.
- No markdown.
- No explanation.

User:
${query}
`;

    try {

        const response = await ollama.chat({
            model: "gemma4:e4b",
            messages: [
                {
                    role: "user",
                    content: prompt
                }
            ]
        });

        res.json({
            command: response.message.content
        });

    } catch (err) {

        res.status(500).json({
            error: err.message
        });

    }

});

app.listen(3000, () => {
    console.log("Running on port 3000");
});