Errores por pantalla + logs en archivo

electron.vite.config.ts

@@ -11,12 +11,14 @@ export default defineConfig({
                 "@renderer": resolve("src/renderer/src"),
             },
         },
-        plugins: [vue({
+        plugins: [
+            vue({
                 template: {
                     compilerOptions: {
-                    isCustomElement: tag => tag === "nfc-reader",
+                        isCustomElement: (tag) => tag === "nfc-reader",
                     },
                 },
-        })],
+            }),
+        ],
     },
 });

src/config/base.json

@@ -0,0 +1,4 @@
+{
+    "defultServer": "http://localhost:3000",
+    "defaultPrinter": "192.168.1.254"
+}

src/main/LogService.ts

@@ -0,0 +1,74 @@
+import { app } from "electron";
+import * as fs from "fs";
+import * as path from "path";
+
+export class LogService {
+    private static instance: LogService;
+    private logPath: string;
+
+    private constructor() {
+        // Create logs directory in userData
+        const userDataPath = app.getPath("userData");
+        const logsDir = path.join(userDataPath, "logs");
+
+        if (!fs.existsSync(logsDir)) {
+            fs.mkdirSync(logsDir, { recursive: true });
+        }
+
+        // Monthly log file
+        const now = new Date();
+        const year = now.getFullYear();
+        const month = String(now.getMonth() + 1).padStart(2, "0");
+        const monthString = `${year}-${month}`; // YYYY-MM
+        this.logPath = path.join(logsDir, `app_${monthString}.log`);
+
+        this.info(`--- Log initialized at ${now.toISOString()} ---`);
+        console.log(`Log file: ${this.logPath}`);
+    }
+    /**
+     * Garantizar que sea singleton
+     * @returns
+     */
+    public static getInstance(): LogService {
+        if (!LogService.instance) {
+            LogService.instance = new LogService();
+        }
+        return LogService.instance;
+    }
+
+    public info(message: string): void {
+        this.write("INFO", message);
+    }
+
+    public error(message: string, error?: unknown): void {
+        const errorDetail = error ? ` | Details: ${JSON.stringify(error)}` : "";
+        this.write("ERROR", `${message}${errorDetail}`);
+    }
+
+    public logOperation(
+        operation: string,
+        data: unknown,
+        result?: unknown,
+    ): void {
+        const entry = {
+            operation,
+            data,
+            result,
+            timestamp: new Date().toISOString(),
+        };
+        this.write("OP", JSON.stringify(entry));
+    }
+
+    private write(level: string, message: string): void {
+        const timestamp = new Date().toISOString();
+        const logEntry = `[${timestamp}] [${level}] ${message}\n`;
+
+        try {
+            fs.appendFileSync(this.logPath, logEntry, "utf8");
+        } catch (err) {
+            console.error("Failed to write to log file:", err);
+        }
+    }
+}
+
+export const logger = LogService.getInstance();

src/main/handlers.ts

@@ -0,0 +1,115 @@
+import { IpcMainInvokeEvent } from "electron";
+import { Result } from "../types/Result";
+import { CodeRequest, CodeResponse, PrinterRequest } from "../preload/index.d";
+import { createConnection } from "net";
+import { logger } from "./LogService";
+
+/**
+ * LLamada al servidor para obtener la etiqueta
+ * @param event --
+ * @param data
+ * @returns
+ */
+export async function labelReqHandler(
+    event: IpcMainInvokeEvent,
+    data: CodeRequest,
+): Promise<Result<string, CodeResponse>> {
+    logger.logOperation("labelReq", data);
+    console.log("nfc:labelReq", data);
+    try {
+        const endpoint = "/nfc/generate";
+        const url = data.serverURL + endpoint;
+        console.log("fullUrl = ", url);
+        const response = await fetch(data.serverURL + endpoint, {
+            method: "POST",
+            headers: {
+                "Content-Type": "application/json",
+            },
+            body: JSON.stringify({
+                card_id: data.card_id,
+                override: data.override,
+            }),
+        });
+        console.log("Response", response.status);
+        const body: CodeResponse = await response.json();
+        console.log("Codigos:", body);
+        logger.info(`labelReq success: ${JSON.stringify(body)}`);
+        // body puede tener otro error dentro
+        return <Result<string, CodeResponse>>{
+            data: body,
+        };
+    } catch (error: unknown) {
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        const err = error as any;
+        logger.error("labelReq error", err);
+        console.error("IPC ERROR", err);
+        let errorStr = "";
+        if (String(err.cause).includes("ECONNRESET")) {
+            errorStr = "Conexión perdida con el servidor";
+        } else {
+            errorStr = "Error de red";
+        }
+        return <Result<string, CodeResponse>>{
+            error: errorStr,
+        };
+    }
+}
+
+/**
+ * Llamada principa a la impresora
+ * TODO:
+ *  - Mejora de control de errores
+ */
+export async function printReqHandler(
+    _event: IpcMainInvokeEvent,
+    data: PrinterRequest,
+): Promise<string> {
+    logger.logOperation("printReq", data);
+    return new Promise((res, rej) => {
+        console.log("nfc:printReq", data);
+        const port = 9100;
+        let finished = false;
+
+        const socket = createConnection(port, data.printerURL);
+        socket.setTimeout(3 * 1000);
+
+        socket.on("connect", (e) => {
+            console.log("Conectado!", e);
+            logger.info("Printer connected, sending label...");
+            socket.write(data.label, "utf-8", () => {
+                socket.end();
+            });
+        });
+
+        socket.on("close", () => {
+            if (finished) return;
+            finished = true;
+            logger.info("Print job sent successfully");
+            console.log("Print job sent and connection closed.");
+            res("ok");
+        });
+
+        socket.on("timeout", (err) => {
+            if (finished) return;
+            finished = true;
+            logger.error("Print timeout", err);
+            console.error("Timeout", err);
+            socket.destroy();
+            rej(new Error("timeout"));
+        });
+
+        socket.on("error", (err) => {
+            if (finished) return;
+            finished = true;
+            logger.error("Printer connection/transmission error", err);
+            let errorStr = "";
+            if (err.message.includes("ETIMEDOUT")) {
+                errorStr = "Error de conexión con la impresora";
+                rej(new Error(errorStr));
+            }
+            console.error("Printer Error:", err.message);
+            socket.destroy();
+            rej(err);
+        });
+    });
+}

src/main/index.ts

@@ -3,7 +3,9 @@ import { join } from "path";
 import { electronApp, optimizer, is } from "@electron-toolkit/utils";
 import icon from "../../resources/icon.png?asset";
 import { NfcService } from "../services/NfcService";
-import net, { createConnection } from "net";
+import { labelReqHandler, printReqHandler } from "./handlers";
+import { logger } from "./LogService";
+
 function createWindow(): void {
     // Create the browser window.
     const mainWindow = new BrowserWindow({
@@ -18,12 +20,16 @@ function createWindow(): void {
         },
     });
 
-    new NfcService((event) => {
+    const nfcService = new NfcService((event) => {
         if (!mainWindow.isDestroyed()) {
             mainWindow.webContents.send(`nfc:${event.type}`, event);
         }
     });
 
+    ipcMain.handle("nfc:getReaderName", () => {
+        return nfcService.getReaderName();
+    });
+
     mainWindow.on("ready-to-show", () => {
         mainWindow.show();
     });
@@ -60,64 +66,13 @@ app.whenReady().then(() => {
     ipcMain.on("ping", () => console.log("pong"));
 
     // HANDLE es bidireccionar ON es unidireccional
-    ipcMain.handle("nfc:labelReq", async (_event, data) => {
-        console.log("nfc:labelReq", data);
-        try {
-            const endpoint = "/nfc/generate";
-            const url = data.serverURL + endpoint;
-            console.log("fullUrl = ", url);
-            const response = await fetch(data.serverURL + endpoint, {
-                method: "POST",
-                headers: {
-                    "Content-Type": "application/json",
-                },
-                body: JSON.stringify({
-                    card_id: data.card_id,
-                    override: data.override,
-                }),
-            });
-            console.log("Response", response.status);
-            const body = await response.json();
-            console.log("Codigos:", body);
-            return body;
-        } catch (error) {
-            console.error(error);
-            return false;
-        }
-        return data;
-    });
-
-    ipcMain.handle("nfc:printReq", async (_event, data) => {
-        console.log("nfc:printReq", data);
-        const client = new net.Socket();
-        const port = 9100;
-        const host = data.printerURL + port;
-
-        const socket = createConnection(port, data.printerURL);
-        socket.setTimeout(10 * 1000);
-        socket.on("connect", (e) => {
-            console.log("Conectado!", e);
-            socket.write(data.label);
-            socket.end();
-        });
-        /*
-        client.connect(data.printerURL + port, () => {
-            console.log("Connected to ZSim Printer");
-            const res = client.write(data.label, (res) => {
-                console.log("resultado de la impresion", res);
-            });
-
-            console.log("Resultado", res);
-        });
+    /**
+     * LLamada principal
+     *  Cli - card_id -> Server - etiqueta/activacion -> Cli
      */
-        socket.on("close", () =>
-            console.log("Print job sent and connection closed."),
-        );
-        socket.on("error", (err) =>
-            console.error("Printer Error:", err.message),
-        );
-        return data;
-    });
+    ipcMain.handle("nfc:labelReq", labelReqHandler);
+
+    ipcMain.handle("nfc:printReq", printReqHandler);
 
     ipcMain.handle("ping:url", async (_event, url: string) => {
         try {

src/preload/index.d.ts

@@ -1,4 +1,5 @@
 import { ElectronAPI } from "@electron-toolkit/preload";
+import { Result } from "../types/Result.js";
 
 export type CodeResponse = {
     error?: string;
@@ -13,6 +14,7 @@ export type CodeResponse = {
 export type CodeRequest = {
     card_id: string; // UUIDv7
     override?: boolean;
+    serverURL: string;
 };
 
 export type PrinterRequest = {
@@ -23,16 +25,14 @@ export type PrinterRequest = {
 export type PrinterResponse = unknown;
 
 export interface NfcAPI {
+    getReaderName: () => Promise<string>;
+    onReader: (callback: (event: { name: string }) => void) => void;
     onTag: (callback: (event: { uid: string }) => void) => void;
     onRemoved: (callback: (event: { uid: string }) => void) => void;
     onError: (callback: (event: { message: string }) => void) => void;
     ping: (url: string) => Promise<boolean>;
     removeAllListeners: () => void;
-    labelReq: (args: {
-        serverURL: string;
-        card_id: string;
-        override?: boolean;
-    }) => Promise<CodeResponse>;
+    labelReq: (args: CodeRequest) => Promise<Result<string, CodeResponse>>;
     printReq: (args: {
         printerURL: string;
         label: string;

src/preload/index.ts

@@ -5,6 +5,12 @@ import { CodeRequest, PrinterRequest } from "./index.d.js";
 // Custom APIs for renderer
 const api = {
     nfc: {
+        getReaderName: (): Promise<string> => {
+            return ipcRenderer.invoke("nfc:getReaderName");
+        },
+        onReader: (callback: (event: { name: string }) => void): void => {
+            ipcRenderer.on("nfc:reader", (_event, value) => callback(value));
+        },
         onTag: (callback: (event: { uid: string }) => void): void => {
             ipcRenderer.on("nfc:tag", (_event, value) => callback(value));
         },
@@ -24,6 +30,7 @@ const api = {
             return ipcRenderer.invoke("ping:url", url);
         },
         removeAllListeners: (): void => {
+            ipcRenderer.removeAllListeners("nfc:reader");
             ipcRenderer.removeAllListeners("nfc:tag");
             ipcRenderer.removeAllListeners("nfc:removed");
             ipcRenderer.removeAllListeners("nfc:error");

src/renderer/index.html

@@ -2,7 +2,7 @@
 <html>
     <head>
         <meta charset="UTF-8" />
-        <title>Electron</title>
+        <title>Lector NFC</title>
         <!-- https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP -->
         <meta
             http-equiv="Content-Security-Policy"

src/renderer/src/assets/main.css

@@ -30,3 +30,8 @@ body {
     );
     background-size: 20px 20px;
 }
+
+.error {
+    color: red;
+    font-style: italic;
+}

src/renderer/src/components/MainView.vue

@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { type CodeResponse } from "src/preload/index.d.js";
+import { tryCatch } from "../../../types/Result.js";
 import { ref, onMounted, onUnmounted } from "vue";
 /**
  * waiting = esperando a leer una tarjeta (igual es mejor ready)
@@ -10,10 +11,18 @@ import { ref, onMounted, onUnmounted } from "vue";
 const readerState = ref<"waiting" | "reading" | "success" | "error">("waiting");
 const uid = ref<string | null>(null);
 const errorMsg = ref<string | null>(null);
-const labelOutput = ref<string>("");
 const labelOutputStructured = ref<CodeResponse | null>(null);
+const readerName = ref<string>("OFFLINE");
+const errors = ref<string[]>([]);
+
+onMounted(async () => {
+    // Get initial reader name
+    readerName.value = await window.api.nfc.getReaderName();
+
+    window.api.nfc.onReader((event) => {
+        readerName.value = event.name;
+    });
 
-onMounted(() => {
     window.api.nfc.onTag((event) => {
         uid.value = event.uid;
         readerState.value = "success";
@@ -64,43 +73,62 @@ const mockReadCard = (): void => {
 
 
 const readCard = async (): Promise<void> => {
-    console.log("test readcard");
+    // Reset de los errores anteriores
+    errors.value = [];
+
     if (readerState.value !== "waiting") return;
     readerState.value = "reading";
 
     const serverURL =
         localStorage.getItem("serverUrl") || "http://localhost:3000";
-    const printerURL =
-        localStorage.getItem("printerUrl") || "192.168.1.254";
+    const printerURL = localStorage.getItem("printerUrl") || "192.168.1.254";
 
     // TODO: De momento está hardcodeado porque no se puede leer la tarjeta
     const card_id = "019cdd39-fc08-7417-b16d-a78794a24c01";
     const override = false;
 
-    try {
-        const res: CodeResponse = await window.api.nfc.labelReq({
+    const codePromise = window.api.nfc.labelReq({
         serverURL,
         card_id,
         override,
     });
-        console.log("Res IPC", res);
-        labelOutput.value = res.data.label;
-        labelOutputStructured.value = res;
-        console.log("Imprimiendo", res);
 
-        const impRes = await window.api.nfc.printReq({
+    const res = await tryCatch(codePromise);
+    console.log("RES IPC:", res);
+
+    // Error de la llamada -> sin conexion al servidor
+    if (res.error != undefined) {
+        errors.value = [...errors.value, String(res.error)];
+        delayWaiting();
+        return;
+    }
+    // Error que viene del servidor
+    if (res.data?.error != undefined) {
+        errors.value = [...errors.value, String(res.data.error)];
+        delayWaiting();
+        return;
+    }
+    const labelData = res.data.data.data;
+    labelOutputStructured.value = res.data.data;
+    console.log("label data", labelData);
+
+    const impPromise = window.api.nfc.printReq({
         printerURL,
-            label: res.data.label,
+        label: labelData.label,
     });
 
-        console.log("Impreso", impRes);
-
-        readerState.value = "waiting";
-    } catch (e) {
-        console.error(e);
-        readerState.value = "error";
+    const resPrint = await tryCatch(impPromise);
+    console.log("print", resPrint);
+    if (resPrint.error != undefined) {
+        let errorStr = "";
+        if (resPrint.error.message.includes("timeout")) {
+            errorStr = "Error de conexión con la impresora";
+        }
+        errors.value = [...errors.value, errorStr];
         delayWaiting();
     }
+
+    delayWaiting();
 };
 
 const delayWaiting = (): void => {
@@ -125,8 +153,8 @@ const triggerError = (): void => {
 
                 <div class="top-meta">
                     <div class="meta-item">
-                        <span class="label">MODULE</span>
-                        <span class="value">NFC_RD_01</span>
+                        <span class="label">LECTOR</span>
+                        <span class="value">{{ readerName }}</span>
                     </div>
                 </div>
 
@@ -134,7 +162,7 @@ const triggerError = (): void => {
                     <div v-if="readerState === 'waiting'" class="waiting-state">
                         <div class="pulse-ring"></div>
                         <div class="pulse-inner"></div>
-                        <h1 class="status-msg">TAP CARD TO INITIALIZE</h1>
+                        <h1 class="status-msg">ACERCA UN NFC PARA EMPEZAR</h1>
                     </div>
 
                     <div
@@ -171,7 +199,22 @@ const triggerError = (): void => {
             </div>
             <!-- Salida por pantalla de las respuestas del servidor y la impresora -->
             <div class="display-container bg-dots">
+                <!-- ERRORES -->
+                <div class="error">
+                    <span v-for="(error, idx) in errors" :key="idx">
+                        <span>Error: {{ error }}</span>
+                    </span>
+                </div>
                 <div v-if="labelOutputStructured != undefined" class="flex-col">
+                    <!-- Errores -->
+
+                    <span
+                        v-if="labelOutputStructured.error != undefined"
+                        class="error"
+                    >
+                        {{ JSON.stringify(labelOutputStructured.error) }}
+                    </span>
+                    <!-- Datos -->
                     <span> Código {{ labelOutputStructured.data.code }} </span>
                     <span>
                         Etiqueta {{ labelOutputStructured.data.label }}

src/services/NfcService.ts

@@ -1,13 +1,16 @@
 import PCSC, { Tag, Reader } from "@tockawa/nfc-pcsc";
+import { logger } from "../main/LogService";
 
 export type NfcEvent =
     | { type: "tag"; uid: string }
     | { type: "removed"; uid: string }
+    | { type: "reader"; name: string }
     | { type: "error"; message: string };
 
 export class NfcService {
     private nfc: PCSC;
     private onEvent?: (event: NfcEvent) => void;
+    private currentReaderName: string = "OFFLINE";
 
     constructor(onEvent?: (event: NfcEvent) => void) {
         this.nfc = new PCSC.default();
@@ -15,12 +18,22 @@ export class NfcService {
         this.init();
     }
 
+    public getReaderName(): string {
+        return this.currentReaderName;
+    }
+
     private init(): void {
         this.nfc.on("reader", (reader: Reader) => {
             console.log(`Lector detectado: ${reader.name}`);
+            logger.info(`NFC Reader detected: ${reader.name}`);
+            this.currentReaderName = reader.name;
+            if (this.onEvent) {
+                this.onEvent({ type: "reader", name: reader.name });
+            }
 
             reader.on("card", async (card: Tag) => {
                 console.log(`Tarjeta detectada! UID: ${card.uid}`);
+                logger.info(`NFC Tag detected: ${card.uid}`);
                 if (this.onEvent) {
                     this.onEvent({ type: "tag", uid: card.uid });
                 }
@@ -28,6 +41,7 @@ export class NfcService {
 
             reader.on("card.off", async (card: Tag) => {
                 console.log(`Tarjeta retirada: ${card.uid}`);
+                logger.info(`NFC Tag removed: ${card.uid}`);
                 if (this.onEvent) {
                     this.onEvent({ type: "removed", uid: card.uid });
                 }
@@ -45,6 +59,11 @@ export class NfcService {
 
             reader.on("end", () => {
                 console.log(`Lector desconectado: ${reader.name}`);
+                logger.info(`NFC Reader disconnected: ${reader.name}`);
+                this.currentReaderName = "OFFLINE";
+                if (this.onEvent) {
+                    this.onEvent({ type: "reader", name: "OFFLINE" });
+                }
             });
         });
 

src/types/Result.ts

@@ -0,0 +1,27 @@
+export type Success<D> = {
+    error?: undefined | null;
+    data: D;
+};
+
+export type Failure<E = Error> = {
+    data?: undefined | null;
+    error: E;
+};
+
+/**
+ * Result<Error,Data>
+ */
+export type Result<E, D> = Failure<E> | Success<D>;
+
+export async function tryCatch<T>(func: Promise<T>): Promise<Result<Error, T>> {
+    try {
+        const res = await func;
+        return {
+            data: res,
+        };
+    } catch (e: unknown) {
+        return {
+            error: e as Error,
+        };
+    }
+}

tsconfig.node.json

@@ -1,6 +1,8 @@
 {
     "extends": "@electron-toolkit/tsconfig/tsconfig.node.json",
     "include": [
+        "src/config/**/*",
+        "src/types/**/*",
         "electron.vite.config.*",
         "src/main/**/*",
         "src/preload/**/*",