Universal Search Algolia Search

algolia-search.js

/**
 * Search by Algolia Search
 * @param options : (object)
 */
var AlgoliaSearch = function(options) {
  SearchService.apply(this, arguments);
  var self = this;
  var endpoint = "https://" +options.appId+ ".algolia.net/1/indexes/" +options.indexName;
  
  /**
   * Generate result list html
   * @param data : (array) result items
   */
  self.buildResultList = function(data) {
    var html = "";
    $.each(data, function(index, row) {
      var url = row.permalink || row.path || "";
      if (!row.permalink && row.path) {
        url = "/" + url;
      }
      var title = row.title;
      var digest = row._highlightResult.excerptStrip.value || "";
      html += self.buildResult(url, title, digest);
    });
    return html;
  };
  
  /**
   * Generate metadata after a successful query
   * @param data : (object) the raw google custom search response data
   */
  self.buildMetadata = function(data) {
    self.nav.current = data.page * data.hitsPerPage + 1;
    self.nav.currentCount = data.hits.length;
    self.nav.total = parseInt(data.nbHits);
    self.dom.metadata.children('.total').html(self.nav.total);
    self.dom.metadata.children('.range').html(self.nav.current + "-" + (self.nav.current+self.nav.currentCount-1));
    self.dom.metadata.show();

    if (data.page < data.nbPages-1) {
      self.nav.next = (data.page+1)+1;
      self.dom.nextButton.show();
    }
    else {
      self.nav.next = -1;
      self.dom.nextButton.hide();
    }
    if (data.page > 0) {
      self.nav.prev = (data.page+1)-1;
      self.dom.prevButton.show();
    }
    else {
      self.nav.prev = -1;
      self.dom.prevButton.hide();
    }
  };
  
  /**
   * Send a GET request
   * @param queryText : (string) the query text
   * @param page : (int) the current page (start from 1)
   * @param callback : (function)
   */
  self.query = function(queryText, page, callback) {
    self.uiBeforeQuery();
    $.get(endpoint, {
      query: queryText,
      page: page-1,
      hitsPerPage: self.config.per_page,
      "x-algolia-application-id": self.config.appId,
      "x-algolia-api-key": self.config.apiKey
    }, function(data, status) {
      if (status === 'success' && data.hits && data.hits.length > 0) {
        var results = self.buildResultList(data.hits); 
        self.dom.resultContainer.html(results);
      }
      else {
        self.onQueryError(queryText, status);
      }
      self.buildMetadata(data);
      self.uiAfterQuery();
      if (callback) {
        callback(data);
      }
    });
  };
  
  self.init();
};