Listo para release

src/main/index.ts

@@ -5,6 +5,7 @@ import icon from "../../resources/icon.png?asset";
 import { NfcService } from "../services/NfcService";
 import { labelReqHandler, printReqHandler } from "./handlers";
 import { logger } from "./LogService";
+import { createConnection } from "net";
 
 function createWindow(): void {
     // Create the browser window.
@@ -87,6 +88,41 @@ app.whenReady().then(() => {
         }
     });
 
+    ipcMain.handle(
+        "ping:socket",
+        async (_event, data: { ip: string; port: number }) => {
+            return new Promise((req, rej) => {
+                const { ip, port } = data;
+                let finished = false;
+                console.log("Pinging,", ip, port);
+                const socket = createConnection(port, ip);
+                socket.setTimeout(3 * 1000);
+
+                socket.on("connect", (e) => {
+                    console.log("Conectado!", e);
+                    logger.info("Printer connected, sending label...");
+                    socket.end();
+                    finished = true;
+                    req(true);
+                });
+
+                socket.on("timeout", (err) => {
+                    if (finished) return;
+                    finished = true;
+                    socket.destroy();
+                    rej(false);
+                });
+
+                socket.on("error", (err) => {
+                    if (finished) return;
+                    finished = true;
+                    socket.destroy();
+                    rej(false);
+                });
+            });
+        },
+    );
+
     createWindow();
 
     app.on("activate", function () {