/**
 * Copyright (c) 2015-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

var execSync = require('child_process').execSync;
var opn = require('opn');

function openBrowser(url) {
  if (process.platform === 'darwin') {
    try {
      // Try our best to reuse existing tab
      // on OS X Google Chrome with AppleScript
      execSync('ps cax | grep "Google Chrome"');
      execSync(
        'osascript openChrome.applescript ' + url,
        {cwd: __dirname, stdio: 'ignore'}
      );
      return true;
    } catch (err) {
      // Ignore errors.
    }
  }
  // Fallback to opn
  // (It will always open new tab)
  try {
    opn(url).catch(() => {}); // Prevent `unhandledRejection` error.
    return true;
  } catch (err) {
    return false;
  }
}

module.exports = openBrowser;