main.js

const electron = require('electron');
// Module to control application life.
const app = electron.app;
// Module to create native browser window.
const BrowserWindow = electron.BrowserWindow

const path = require('path');
const url = require('url');
const ipcMain = require('electron').ipcMain;

const Files = require('./static/js/Files');

const debug = /debug/.test(process.argv[2]);

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let mainWindow;
let files = new Files();

function createWindow () {
    // Create the browser window.
    mainWindow = new BrowserWindow({width: 1280, height: 800, frame: false})

    // and load the index.html of the app.
    mainWindow.loadURL(url.format({
        pathname: path.join(__dirname, 'index.html'),
        protocol: 'file:',
        slashes: true
    }));

  // Open the DevTools.
  // mainWindow.webContents.openDevTools()
  if (debug) {
      mainWindow.webContents.openDevTools();
      mainWindow.maximize();
      require('devtron').install();
  }

    // Emitted when the window is closed.
    mainWindow.on('closed', function () {
        // Dereference the window object, usually you would store windows
        // in an array if your app supports multi windows, this is the time
        // when you should delete the corresponding element.
        mainWindow = null;
    })
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', function(){
    //load all csv files
    files.LoadAll()
        .then(function(){
            //create app windows only after successfully read the files
            createWindow();
        });

});

// Quit when all windows are closed.
app.on('window-all-closed', function () {
    // On OS X it is common for applications and their menu bar
    // to stay active until the user quits explicitly with Cmd + Q
    if (process.platform !== 'darwin') {
        app.quit();
    }
});

app.on('activate', function () {
    // On OS X it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (mainWindow === null) {
        createWindow();
    }
});

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.


//ipc function that returns the files read: products and categories
ipcMain.on('getFiles', function(event, arg) {
    event.sender.send("getFiles", files);
});