# Farm Control Server

A Node.js application that bridges communication between external websocket clients and a Moonraker-controlled 3D printer.

## Features

- Connects to Moonraker API via websocket
- Provides a websocket server for external clients
- Relays JSON-RPC commands between clients and the printer
- Broadcasts printer status updates to all connected clients
- Handles reconnection if the Moonraker connection is lost

## Installation

1. Clone this repository
2. Install dependencies:
   ```
   npm install
   ```
3. Edit the `config.json` file to match your Moonraker setup
4. Start the server:
   ```
   npm start
   ```

## Configuration

The `config.json` file contains the following options:

```json
{
  "moonraker": {
    "host": "localhost",
    "port": 7125,
    "protocol": "ws",
    "apiKey": null,
    "identity": {
      "name": "printer-bridge",
      "version": "0.1.0",
      "type": "external"
    }
  },
  "server": {
    "port": 8080
  }
}
```

- `moonraker.host`: The hostname or IP address of your Moonraker instance
- `moonraker.port`: The port number of your Moonraker instance
- `moonraker.protocol`: The protocol to use (`ws` or `wss`)
- `moonraker.apiKey`: Your Moonraker API key (if required)
- `server.port`: The port number for the websocket server

## Usage

Connect to the websocket server at `ws://[host]:[port]` and send JSON-RPC formatted messages to control the printer.

Example client-side code:

```javascript
const ws = new WebSocket('ws://localhost:8080');

ws.onopen = () => {
  console.log('Connected to printer bridge');

  // Send a command to get printer info
  ws.send(JSON.stringify({
    jsonrpc: "2.0",
    method: "printer.info",
    id: 1
  }));
};

ws.onmessage = (event) => {
  const message = JSON.parse(event.data);
  console.log('Received:', message);
};
```

## License

MIT