codeRIT/hackathon_manager

document.addEventListener('turbolinks:load', function() {
  $.fn.wizard = function() {
    var form = this;

    var goToStage = function($newStage) {
      $(form)
        .find('.wizard-current')
        .removeClass('wizard-current');
      $newStage.addClass('wizard-current');
      $('html, body').animate({ scrollTop: 0 }, 'slow');

      if ($newStage.find('.field_with_errors').length > 0) {
        $newStage
          .find('.field_with_errors')
          .first()
          .find(':input')
          .focus();
        return;
      } else {
        $newStage
          .find(':input')
          .first()
          .focus();
      }
    };

    var nextStage = function() {
      if (
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          .find('.wizard-current')
          .validate('now')
      ) {
        return false;
      }
      goToStage(
        $(form)
          .find('.wizard-current')
          .next()
      );
    };

    var previousStage = function() {
      goToStage(
        $(form)
          .find('.wizard-current')
          .prev()
      );
    };

    if ($(form).find('.field_with_errors').length > 0) {
      var stage = $(form)
        .find('.field_with_errors')
        .first()
        .parents('.wizard-stage');
      goToStage(stage);
    }

    $(this)
      .find('[data-wizard=next]')
      .each(function() {
        $(this).on('click', nextStage);
      });
    $(this)
      .find('[data-wizard=previous]')
      .each(function() {
        $(this).on('click', previousStage);
      });

    if ($(this).is('.wizard-skip-valid')) {
      nextStage.call(this);
    }
  };

  $('.wizard').wizard();
});