text: import $ from  "jquery";
  import "../widget";
  
  $.widget("khq.search-sse", $.khq.widget, {
      _progressBar: null,
      _cancelButton: null,
      _after: null,
      _eventSource: null,
  
      _create: function () {
          const self = this;
  
          let table = this.element.find('tbody');
          this._progressBar = this.element.find('.progress-bar');
          this._cancelButton = this.element.find('.progress-container button');
              this._after = this.element.parent().find('nav .page-item.after');
          this._after.addClass('disabled');
  
          this._eventSource = new EventSource(this._url()
              .clone()
              .filename(this._url().filename() + "/search/" + this._url().search(true).search)
              .removeSearch("search")
              .toString()
          );
  
          this._eventSource.addEventListener('open', function(e) {
              self._cancelButton.removeClass('disabled');
          }, false);
  
          this._eventSource.addEventListener('close', $.proxy(self._close, this), false);
          this._eventSource.addEventListener('error', $.proxy(self._close, this), false);
          this._cancelButton.on('click', $.proxy(self._close, this));
          self.addDestroyCallback(function()
          {
              self._close();
          });
  
          this._eventSource.addEventListener('searchBody', function(e) {
              let searchBody = JSON.parse(e.data);
  
              if (searchBody.body.trim()) {
                  table.append(searchBody.body);
                  $(document).trigger('khq.refresh');
              }
  
              if (searchBody.progress && searchBody.offsets) {
                  self._updateProgress(searchBody.offsets, searchBody.progress)
              }
          }, false);
  
          this._eventSource.addEventListener("searchEnd", function(e) {
              self._close(e);
              let searchEnd = JSON.parse(e.data);
  
              if (searchEnd.after !== null) {
                  self._after
                      .removeClass('disabled')
                      .find('.page-link')
                      .attr('href', self._url().setSearch("after", searchEnd.after));
              } else {
                  self._updateProgressBar(100);
              }
          });
      },
  
      _close(e) {
          this._eventSource.close();
          this._cancelButton.addClass('disabled btn-outline-dark');
      },
  
      _updateProgress(offsets, progress) {
          let current = 0;
          let total = 0;
  
          $.each(offsets, function (partition, offset) {
              total += offset.end - offset.begin;
          });
  
          $.each(progress, function (partition, remaining) {
              current += remaining;
          });
  
          this._updateProgressBar(100-(current*100/total));
      },
  
      _updateProgressBar(number) {
          this._progressBar
              .css('width', number + "%")
              .text((Math.round(number  * 100) / 100) + "%");
      }
  });
  