const electron = require('electron')
const app = electron.app

module.exports = {
  handleSquirrelEvent: function() {
    if (process.argv.length === 1) {
      return false;
    }
    
    const ChildProcess = require('child_process');
    const path = require('path');
    
    const appFolder = path.resolve(process.execPath, '..');
    const rootAtomFolder = path.resolve(appFolder, '..');
    const updateDotExe = path.resolve(path.join(rootAtomFolder, 'Update.exe'));
    const exeName = path.basename(process.execPath);
    const spawn = function(command, args) {
      let spawnedProcess, error;
      
      try {
        spawnedProcess = ChildProcess.spawn(command, args, {detached: true});
      } catch (error) {}
      
      return spawnedProcess;
    };
    
    const spawnUpdate = function(args) {
      return spawn(updateDotExe, args);
    };
    
    const squirrelEvent = process.argv[1];
    switch (squirrelEvent) {
      case '--squirrel-install':
      case '--squirrel-updated':
      // Optionally do things such as:
      // - Add your .exe to the PATH
      // - Write to the registry for things like file associations and
      // explorer context menus
      
      // Install desktop and start menu shortcuts
      spawnUpdate(['--createShortcut', exeName]);
      
      setTimeout(app.quit, 1000);
      return true;
      
      case '--squirrel-uninstall':
      // Undo anything you did in the --squirrel-install and
      // --squirrel-updated handlers
      
      // Remove desktop and start menu shortcuts
      spawnUpdate(['--removeShortcut', exeName]);
      
      setTimeout(app.quit, 1000);
      return true;
      
      case '--squirrel-obsolete':
      // This is called on the outgoing version of your app before
      // we update to the new version - it's the opposite of
      // --squirrel-updated
      
      app.quit();
      return true;
    }
  }
}