initial

network/TelnetConnection.js

@@ -0,0 +1,88 @@
+const net = require("net");
+
+class TelnetConnection {
+
+    constructor(config){
+
+        this.host = config.host;
+        this.port = config.port;
+        this.reconnectDelay = config.reconnectDelay || 30000;
+
+        this.socket = null;
+
+        this.dataListeners = [];
+        this.connectionListeners = [];
+
+        this.connect();
+    }
+
+    connect(){
+
+        console.log("Connecting to FluidNC:", this.host);
+
+        this.socket = net.createConnection({
+            host: this.host,
+            port: this.port
+        });
+
+        this.socket.on("connect",()=>{
+
+            console.log("FluidNC connected");
+
+            this.connectionListeners.forEach(fn=>fn(true));
+
+        });
+
+        this.socket.on("data",(data)=>{
+
+            const msg = data.toString();
+
+            this.dataListeners.forEach(fn=>fn(msg));
+
+        });
+
+        this.socket.on("close",()=>{
+
+            console.log("FluidNC disconnected");
+
+            this.connectionListeners.forEach(fn=>fn(false));
+
+            setTimeout(()=>{
+                this.connect();
+            }, this.reconnectDelay);
+
+        });
+
+        this.socket.on("error",(err)=>{
+            console.log("Telnet error:",err.message);
+        });
+
+    }
+
+    send(cmd){
+
+        if(!this.socket) return;
+
+        this.socket.write(cmd+"\n");
+
+    }
+
+    realtime(cmd){
+
+        if(!this.socket) return;
+
+        this.socket.write(cmd);
+
+    }
+
+    onData(fn){
+        this.dataListeners.push(fn);
+    }
+
+    onConnection(fn){
+        this.connectionListeners.push(fn);
+    }
+
+}
+
+module.exports = TelnetConnection;