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const { app, BrowserWindow, shell, dialog } = require('electron');
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const path = require('path');
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const express = require('express');
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const xlsx = require('xlsx');
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const fs = require('fs');
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const Store = require('electron-store');
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// --- Store Setup ---
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const store = new Store();
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// --- Express Server Setup ---
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const expressApp = express();
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const PORT = 3000;
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// Middleware
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expressApp.use(express.static(path.join(__dirname, 'public')));
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expressApp.use(express.json());
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// Excel-Ordnerpfad aus Store oder Standard
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let excelFolderPath = store.get('excelPath') || path.join(__dirname, 'tabellen');
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// Sicherstellen, dass der Ordner existiert
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if (!fs.existsSync(excelFolderPath)) {
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fs.mkdirSync(excelFolderPath, { recursive: true });
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}
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// --- Routen ---
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// Abrufen von Daten für Jahr & Monat
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expressApp.get('/api/daten/:jahr/:monat', (req, res) => {
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const { jahr, monat } = req.params;
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const excelPath = path.join(excelFolderPath, `${jahr}.xlsx`);
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try {
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let workbook;
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if (!fs.existsSync(excelPath)) {
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workbook = xlsx.utils.book_new();
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xlsx.writeFile(workbook, excelPath);
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} else {
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workbook = xlsx.readFile(excelPath);
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}
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if (!workbook.Sheets[monat]) {
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const ws = xlsx.utils.aoa_to_sheet([]);
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xlsx.utils.book_append_sheet(workbook, ws, monat);
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xlsx.writeFile(workbook, excelPath);
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return res.json([]);
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}
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const data = xlsx.utils.sheet_to_json(workbook.Sheets[monat], { header: 1 });
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res.json(data || []);
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} catch (err) {
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console.error('Fehler beim Abrufen der Daten:', err);
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res.status(500).json({ error: 'Interner Serverfehler.' });
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}
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});
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// Zeile speichern
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expressApp.post('/api/zeile-speichern', (req, res) => {
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let { rowIndex, updatedRowData, jahr, monat } = req.body;
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const excelPath = path.join(excelFolderPath, `${jahr}.xlsx`);
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try {
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if (!fs.existsSync(excelPath)) {
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return res.status(404).json({ error: `Datei für Jahr ${jahr} nicht gefunden.` });
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}
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const workbook = xlsx.readFile(excelPath);
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if (!workbook.Sheets[monat]) {
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return res.status(404).json({ error: `Blatt für Monat ${monat} nicht gefunden.` });
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}
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const worksheet = workbook.Sheets[monat];
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const data = xlsx.utils.sheet_to_json(worksheet, { header: 1 }) || [];
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if (rowIndex < 0 || rowIndex >= data.length) {
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rowIndex = data.length;
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data.push(updatedRowData);
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} else {
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data[rowIndex] = updatedRowData;
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}
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workbook.Sheets[monat] = xlsx.utils.aoa_to_sheet(data);
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xlsx.writeFile(workbook, excelPath);
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res.json({ message: 'Zeile erfolgreich gespeichert!' });
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} catch (err) {
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console.error('Fehler beim Speichern der Zeile:', err);
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res.status(500).json({ error: 'Interner Serverfehler.' });
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}
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});
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// Zeile löschen
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expressApp.post('/api/zeile-loeschen', (req, res) => {
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const { jahr, monat, zeileIndex } = req.body;
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const excelPath = path.join(excelFolderPath, `${jahr}.xlsx`);
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try {
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if (!fs.existsSync(excelPath)) {
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return res.status(404).json({ error: `Datei für Jahr ${jahr} nicht gefunden.` });
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}
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const workbook = xlsx.readFile(excelPath);
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if (!workbook.Sheets[monat]) {
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return res.status(404).json({ error: `Blatt für Monat ${monat} nicht gefunden.` });
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}
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const worksheet = workbook.Sheets[monat];
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const data = xlsx.utils.sheet_to_json(worksheet, { header: 1 }) || [];
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if (zeileIndex < 0 || zeileIndex >= data.length) {
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return res.status(404).json({ error: `Zeile ${zeileIndex} nicht gefunden.` });
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}
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data.splice(zeileIndex, 1);
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workbook.Sheets[monat] = xlsx.utils.aoa_to_sheet(data);
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xlsx.writeFile(workbook, excelPath);
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res.json({ message: 'Zeile erfolgreich gelöscht!' });
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} catch (err) {
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console.error('Fehler beim Löschen der Zeile:', err);
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res.status(500).json({ error: 'Interner Serverfehler.' });
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}
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});
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// Ordner öffnen
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expressApp.get('/api/ordner-oeffnen', (req, res) => {
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try {
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shell.openPath(excelFolderPath);
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res.json({ message: 'Ordner geöffnet' });
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} catch (err) {
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console.error(err);
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res.status(500).json({ error: 'Ordner konnte nicht geöffnet werden' });
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}
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});
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// Pfad ändern über Dialog
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expressApp.post('/api/pfad-aendern', async (req, res) => {
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try {
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const result = await dialog.showOpenDialog(mainWindow, {
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properties: ['openDirectory']
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});
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if (!result.canceled && result.filePaths.length > 0) {
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excelFolderPath = result.filePaths[0];
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store.set('excelPath', excelFolderPath);
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console.log('Neuer Excel-Pfad:', excelFolderPath);
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return res.json({ message: 'Pfad geändert', path: excelFolderPath });
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}
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res.json({ message: 'Abgebrochen' });
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} catch (err) {
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console.error(err);
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res.status(500).json({ error: 'Pfad konnte nicht geändert werden' });
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}
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});
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// --- Express Server starten ---
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let server;
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function startExpressServer() {
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return new Promise((resolve, reject) => {
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server = expressApp.listen(PORT, 'localhost', (err) => {
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if (err) reject(err);
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else {
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console.log(`Express Server läuft auf http://localhost:${PORT}`);
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resolve();
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}
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});
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});
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}
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// --- Electron App Setup ---
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let mainWindow;
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function createWindow() {
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mainWindow = new BrowserWindow({
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width: 1200,
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height: 800,
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webPreferences: {
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nodeIntegration: false,
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contextIsolation: true,
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preload: path.join(__dirname, 'preload.js')
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},
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show: false
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});
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mainWindow.loadURL(`http://localhost:${PORT}`);
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mainWindow.once('ready-to-show', () => mainWindow.show());
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if (process.env.NODE_ENV === 'development') {
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mainWindow.webContents.openDevTools();
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}
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mainWindow.on('closed', () => {
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mainWindow = null;
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});
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}
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// --- App Events ---
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app.whenReady().then(async () => {
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try {
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await startExpressServer();
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createWindow();
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} catch (error) {
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console.error('Fehler beim Starten:', error);
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app.quit();
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}
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});
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app.on('window-all-closed', () => {
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if (server) server.close();
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if (process.platform !== 'darwin') app.quit();
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});
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app.on('activate', () => {
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if (BrowserWindow.getAllWindows().length === 0) createWindow();
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});
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app.on('before-quit', () => {
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if (server) server.close();
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});
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