tracking search with filters

<script>
  function getContentStatusLabel(status_id) {
    switch(status_id){
      case '121':
        return 'Open';
      case '125':
        return 'Closed';
      case '124':
        return 'Closed with follow up';
      default:
        return status_id;
    }
  }
  function getTopicLabel(topic_id) {
    switch(topic_id){
      case '92':
        return 'Arts and culture';
      case '95':
        return 'Communities';
      case '96':
        return 'Planning and regeneration';
      case '99':
        return 'Economy';
      case '100':
        return 'Skills and education';
      case '101':
        return 'Environment';
      case '103':
        return 'Health';
      case '105':
        return 'Housing';
      case '108':
        return 'Police';
      case '109':
        return 'Fire';
      case '110':
        return 'Transport';
      case '113':
        return 'Recovery from COVID-19';
      default:
        return topic_id;
    }
  }
  var params = new URLSearchParams(window.location.search);
  if (params && params.size !==0) {
    var customSearchData = {
      's' : '',
      'field_content_status' : [],
      'field_topic' : [],
      'type' : [],
      'dates' : []
    };
    var keys = Array.from(params.keys());
    keys.forEach(function(key){
      var value = params.get(key);
      if (key == 's') {
        customSearchData['s'] = value;
      }
      else if (key.indexOf('field_content_status') !== -1) {
         customSearchData['field_content_status'].push(getContentStatusLabel(value));
      }
      else if (key.indexOf('field_topic') !== -1) {
         customSearchData['field_topic'].push(getTopicLabel(value));
      }
      else if (key.indexOf('type') !== -1) {
        if (value == 'forum') {
          value = 'discussion';
        }
         customSearchData['type'].push(value);
      }
      else if (key.indexOf('created') !== -1 && value != '') {
        customSearchData['dates'].push(value);
      }
    });

    window.dataLayer.push({
       event: 'talk_london_search_data',
       talk_london_search_data: customSearchData['s'],
       field_content_status: customSearchData['field_content_status'],
       field_topic: customSearchData['field_topic'],
       type: customSearchData['type'],
       dates: customSearchData['dates']
    });
  }

</script>