main.ts

import { app, BrowserWindow, screen, Menu, remote } from 'electron';
import * as path from 'path';
import * as fs from 'fs';
import * as url from 'url';
import * as exitHook from 'async-exit-hook';
import { stop, init } from './ipfsControl';

let win, serve;
const args = process.argv.slice(1);
serve = args.some(val => val === '--serve');

process.env['ELECTRON_ENABLE_LOGGING'] = 'true';

evaluateSharuArguments();

exitHook(() => {
  console.log('exiting');
  stop().then(() => {
    console.log('IPFS stopped');
  });
});


// test via npm run start: add argument at the end of entry electron:serve in package.json
// test in macos: 'open sharu.app --args ...'

function evaluateSharuArguments() {
  // sharuPath: changes the userData path of sharu including app data and of course ipfs daemon
  const overrideSharuPath = process.argv.find(a => {
    return (a.startsWith('sharuPath='));
  });
  if ((overrideSharuPath)) {
    const newUserDataPath = overrideSharuPath.split('=')[1];
    const dirname = path.dirname(newUserDataPath);
    if (fs.existsSync(dirname)) {
      console.log('Changing path to sharu to: ' + newUserDataPath);
      app.setPath('userData', newUserDataPath);
    } else {
      console.log('Path ' + newUserDataPath + ' does not exist - using standard path: ' + app.getPath('userData'));
    }
  }
}

async function createWindow() {
  await init();

  const electronScreen = screen;
  const size = electronScreen.getPrimaryDisplay().workAreaSize;

  // Create the browser window.
  win = new BrowserWindow({
    x: 0,
    y: 0,
    width: size.width,
    height: size.height,
    webPreferences: { experimentalFeatures: true }
  });

  if (serve) {
    require('electron-reload')(__dirname, {
      electron: require(`${__dirname}/node_modules/electron`)
    });
    win.loadURL('http://localhost:4200');
  } else {
    win.loadURL(url.format({
      pathname: path.join(__dirname, 'dist/index.html'),
      protocol: 'file:',
      slashes: true
    }));
  }

  if (!app.isPackaged) {
    win.webContents.openDevTools();
  }

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

}

try {

  // 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', () => {
    createWindow();

    if (process.platform === 'darwin') {
      // Create our menu entries so that we can use MAC shortcuts
      Menu.setApplicationMenu(Menu.buildFromTemplate([
        {
          label: 'Edit',
          submenu: [
            { role: 'undo' },
            { role: 'redo' },
            { type: 'separator' },
            { role: 'cut' },
            { role: 'copy' },
            { role: 'paste' },
            { role: 'pasteandmatchstyle' },
            { role: 'delete' },
            { role: 'selectall' },
            { type: 'separator' },
            { role: 'quit' }
          ]
        }
      ]));
    }
  });

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

  app.on('activate', () => {
    // 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 (win === null) {
      createWindow();
    }
  });

} catch (e) {
  // Catch Error
  // throw e;
}