(function ($) {
  var added_click = false;

  function getCookie(name) {
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1) {
      begin = dc.indexOf(prefix);
      if (begin != 0) return null;
    }
    else {
      begin += 2;
      var end = document.cookie.indexOf(";", begin);
      if (end == -1) {
        end = dc.length;
      }
    }
    // because unescape has been deprecated, replaced with decodeURI
    //return unescape(dc.substring(begin + prefix.length, end));
    return decodeURI(dc.substring(begin + prefix.length, end));
  }

  var faq_event_sent = false;
  Drupal.behaviors.dab_faq = {
    attach: function (context, settings) {
      Drupal.behaviors.dab_faq.init_cookies();
      if (!added_click) {
        added_click = true;
        $('.faq-title-wrapper').click(function () {
          $(this).closest('.paragraph').find('.faq-content').slideToggle();
          $(this).toggleClass('closed');
        });
      }
      is_faq_d_service_page = $('.node--type-d-service-faq.node--view-mode-full').length > 0;
      if(!faq_event_sent && is_faq_d_service_page){
        if(drupalSettings.dab_faq.is_generic_faq) {
          faq_event_sent = true;
        } else {
          var mdata = "PROD | " + drupalSettings.dab_faq.prodmdata.title + " | " + drupalSettings.dab_faq.prodmdata.id;
        }
      }
      /**
       * Bind search on enter keyup
       */
      $("input[name='full-text-search-structure']").keyup(function (e) {
        if (e.which == 13 && $(this).val().length > 1) {
          Drupal.behaviors.dab_faq.generate_results($(this).val());
        }
      });
      /**
       * Bind search on icon click
       */
      $(".faq-structure-search-form button").click(function () {
        if ($("input[name='full-text-search-structure']").val().length > 1) {
          Drupal.behaviors.dab_faq.generate_results($("input[name='full-text-search-structure']").val());
        }
      });
      $(".open-all-faqs").click(function (e) {
        e.preventDefault();
        $('.open-all-faqs').hide();
        $('.close-all-faqs').show();
        Drupal.behaviors.dab_faq.open_all_faq();
      });
      $(".close-all-faqs").click(function (e) {
        e.preventDefault();
        $('.open-all-faqs').show();
        $('.close-all-faqs').hide();
        Drupal.behaviors.dab_faq.close_all_faq();
      });
      $(".reset-filters").click(function () {
        Drupal.behaviors.dab_faq.reset_filters();
      });
      $(".feedback-trigger").click(function () {
        Drupal.behaviors.dab_faq.provide_feedback($(this), $(this).attr('data-type'));
      });
    },
    init_cookies: function () {
      $('.paragraph--type--faq').each(function () {
        if (!(getCookie('Drupal.visitor.dabw-flagged-' + $(this).attr('data-paragraph-id')) === null)) {
          $(this).find('.faq-feedback').remove();
          if (!($(this).find('.faq-feedback-given').length > 0)) {
            $(this).find('.field--name-field-faq-body').append("<div class='faq-feedback-given'>" + drupalSettings.dab_faq.feedback_positive_message + '</div>');
          }
        }
      });
    },
    /**
     * Generates results searching full text in title and description
     * @param string
     */
    generate_results: function (string) {
      var matches = [];
      string = string.toLowerCase();
      $('.field--name-field-faq-title').each(function () {
        if ($(this).text().toLowerCase().indexOf(string) > -1) {
          var parid = $(this).closest('.paragraph--type--faq').attr('data-paragraph-id');
          if (typeof matches[parid] === "undefined") {
            matches.push(parid);
          }
        }
      });
      $('.field--name-field-faq-body > p').each(function () {
        if ($(this).text().toLowerCase().indexOf(string) > -1) {
          var parid = $(this).closest('.paragraph--type--faq').attr('data-paragraph-id');
          if (typeof matches[parid] === "undefined") {
            matches.push(parid);
          }
        }
      });
      Drupal.behaviors.dab_faq.display_results(matches);
    },
    /**
     * Display Results closing all FAQ and opening only the matched faq
     * @param matches_array
     */
    display_results: function (matches_array) {
      $('.no-results-faq-search').remove();
      if (matches_array.length > 0) {
        $('.paragraph--type--faq .faq-content').hide();
        $('.paragraph--type--faq .faq-title-wrapper').addClass('closed');
        $('.paragraph--type--faq-block').hide();
        $('.field--name-field-faq-structure .paragraph--type--faq').hide();
        for (var i = 0; i < matches_array.length; i++) {
          var curmatch = matches_array[i];
          $("div[data-paragraph-id='" + curmatch + "']").find('.faq-title-wrapper').removeClass('closed');
          $("div[data-paragraph-id='" + curmatch + "']").find('.faq-content').show();
          $("div[data-paragraph-id='" + curmatch + "']").show();
          $("div[data-paragraph-id='" + curmatch + "']").closest('.paragraph--type--faq-block').show();
        }
      } else {
        //no results generated
        $('.paragraph--type--faq .faq-content').hide();
        $('.paragraph--type--faq .faq-title-wrapper').addClass('closed');
        $('.paragraph--type--faq-block').hide();
        //show message, no faqs
        $('.faq-container').after('<div class="no-results-faq-search">' + drupalSettings.dab_faq.no_results + '</div>');
      }
    },
    open_all_faq: function () {
      $('.paragraph--type--faq').show();
      $('.paragraph--type--faq-block').show();
      $('.paragraph--type--faq .faq-content').show();
      $('.paragraph--type--faq .faq-title-wrapper').removeClass('closed');
    },
    close_all_faq: function () {
      $('.paragraph--type--faq').show();
      $('.paragraph--type--faq-block').show();
      $('.paragraph--type--faq .faq-content').hide();
      $('.paragraph--type--faq .faq-title-wrapper').addClass('closed');
    },
    reset_filters: function () {
      $('.paragraph--type--faq').show();
      $('.paragraph--type--faq-block').show();
      $('.paragraph--type--faq .faq-content').hide();
      $('.paragraph--type--faq .faq-title-wrapper').addClass('closed');
      $('.no-results-faq-search').remove();
      $('.faq-structure-search-form input').val('');
    },
    /**
     * provides feedback flagging the needed links
     * @param element
     * @param type
     */
    provide_feedback: function (element, type) {
      var update_stato = function (response) {
        $(element).closest('.paragraph--type--faq').find('.faq-feedback').removeClass('progress-enabled');
        var negativemessage = drupalSettings.dab_faq.feedback_negative_message.replace('[customer_service]', '<a class="feedneglink" href="' + Drupal.url(drupalSettings.dab_faq.feedback_customer_service_url) + '">' + drupalSettings.dab_faq.customer_service_string + '</a>');
        if (response.status == 1) {
          //ok
          if (type === "negative") {
            $(element).closest('.paragraph--type--faq').find('.faq-content').append("<div class='faq-feedback-given negative'>" + negativemessage + "</div>");
          } else {
            $(element).closest('.paragraph--type--faq').find('.faq-content').append("<div class='faq-feedback-given positive'>" + drupalSettings.dab_faq.feedback_positive_message + "</div>");
          }
          $(element).closest('.paragraph--type--faq').find('.faq-feedback').remove();
        }
      };
      var paragraphid = $(element).closest('.paragraph--type--faq').attr('data-paragraph-id');
      var nid = $(element).closest('article').attr('data-history-node-id');
      var urlreq = 'dab-feedback/' + type;
      $(element).closest('.paragraph--type--faq').find('.faq-feedback').addClass('progress-enabled');
      $.ajax({
        type: 'POST',
        url: Drupal.url('dab-feedback/' + type), // Which url should be handle the ajax request.
        success: update_stato, // The js function that will be called upon success request
        dataType: 'json', //define the type of data that is going to get back from the server
        data: 'paragraph_id=' + paragraphid + '&nid=' + nid
      });
    }
  }
})(jQuery);