function onAuthStateChanged()

in database/scripts/main.js [330:348]

• 15 lines of code
• 4 McCabe index (conditional complexity)

function onAuthStateChanged(user) {
  // We ignore token refresh events.
  if (user && currentUID === user.uid) {
    return;
  }

  cleanupUi();
  if (user) {
    currentUID = user.uid;
    splashPage.style.display = 'none';
    writeUserData(user.uid, user.displayName, user.email, user.photoURL);
    startDatabaseQueries();
  } else {
    // Set currentUID to null.
    currentUID = null;
    // Display the splash page where you can sign-in.
    splashPage.style.display = '';
  }
}