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main.js

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+const { app, BrowserWindow, Menu, dialog, ipcMain } = require('electron');
+const path = require('path');
+const fs = require('fs');
+
+let mainWindow;
+
+// Disable GPU acceleration to prevent crashes
+app.disableHardwareAcceleration();
+
+function createWindow() {
+  mainWindow = new BrowserWindow({
+    width: 1200,
+    height: 800,
+    minWidth: 800,
+    minHeight: 600,
+    webPreferences: {
+      nodeIntegration: true,
+      contextIsolation: false
+    },
+    show: false,
+    backgroundColor: '#1a1a2e'
+  });
+
+  mainWindow.loadFile('index.html');
+
+  mainWindow.once('ready-to-show', () => {
+    mainWindow.show();
+  });
+
+  if (process.argv.includes('--dev')) {
+    mainWindow.webContents.openDevTools();
+  }
+
+  mainWindow.on('closed', () => {
+    mainWindow = null;
+  });
+
+  createMenu();
+}
+
+function createMenu() {
+  const template = [
+    {
+      label: 'File',
+      submenu: [
+        {
+          label: 'Open Save File',
+          accelerator: 'CmdOrCtrl+O',
+          click: () => openSaveFile()
+        },
+        {
+          label: 'Save',
+          accelerator: 'CmdOrCtrl+S',
+          click: () => mainWindow.webContents.send('menu-save')
+        },
+        { type: 'separator' },
+        {
+          label: 'Exit',
+          click: () => app.quit()
+        }
+      ]
+    }
+  ];
+
+  const menu = Menu.buildFromTemplate(template);
+  Menu.setApplicationMenu(menu);
+}
+
+async function openSaveFile() {
+  try {
+    const result = await dialog.showOpenDialog(mainWindow, {
+      title: 'Open Fallout Shelter Save File',
+      filters: [
+        { name: 'Save Files', extensions: ['sav'] },
+        { name: 'All Files', extensions: ['*'] }
+      ],
+      properties: ['openFile']
+    });
+
+    if (!result.canceled && result.filePaths.length > 0) {
+      const filePath = result.filePaths[0];
+      const fileData = fs.readFileSync(filePath, 'utf8');
+      mainWindow.webContents.send('file-opened', {
+        path: filePath,
+        data: fileData,
+        name: path.basename(filePath)
+      });
+    }
+  } catch (error) {
+    console.error('Error:', error);
+  }
+}
+
+// IPC handlers
+ipcMain.on('open-file-dialog', () => {
+  openSaveFile();
+});
+
+ipcMain.handle('save-file', async (event, filePath, data) => {
+  try {
+    console.log('Main process: Saving file to:', filePath);
+    console.log('Main process: Data length:', data.length);
+
+    fs.writeFileSync(filePath, data, 'utf8');
+    console.log('Main process: File saved successfully');
+
+    return { success: true };
+  } catch (error) {
+    console.error('Main process: Save error:', error);
+    return { success: false, error: error.message };
+  }
+});
+
+ipcMain.handle('create-backup', async (event, originalPath) => {
+  try {
+    const timestamp = new Date().toISOString().replace(/[:.]/g, '-');
+    const backupPath = `${originalPath}.backup_${timestamp}`;
+    fs.copyFileSync(originalPath, backupPath);
+    return { success: true, backupPath };
+  } catch (error) {
+    return { success: false, error: error.message };
+  }
+});
+
+app.whenReady().then(() => {
+  createWindow();
+});
+
+app.on('window-all-closed', () => {
+  if (process.platform !== 'darwin') {
+    app.quit();
+  }
+});
+
+app.on('activate', () => {
+  if (BrowserWindow.getAllWindows().length === 0) {
+    createWindow();
+  }
+});