Silk-Fly-Launcher/main.js

const { app, BrowserWindow , ipcMain} = require('electron/main');
const path = require('node:path');
const Store = require('electron-store').default;
const fs = require('fs/promises');

const store = new Store();

const createWindow = () => {
  const win = new BrowserWindow({
    width: 1280,
    height: 720,
    webPreferences: {
      preload: path.join(__dirname, 'preload.js')
    }
  })

  win.loadFile('renderer/index.html')
}

app.whenReady().then(() => {
  createWindow()

  app.on('activate', () => {
    if (BrowserWindow.getAllWindows().length === 0) {
      createWindow()
    }
  })
})

app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
    app.quit()
  }
})

ipcMain.handle('save-path', (event, path) => {
  store.set('silksong-path', path);
});

ipcMain.handle('load-path', () => {
  return store.get('silksong-path');
});

async function fileExists(filePath) {
  try {
    await fs.access(filePath);
    return true;
  } catch {
    return false;
  }
}

ipcMain.handle('file-exists', async (_, filePath) => {
  return await fileExists(filePath);
});