engineering-landing-page.js

var items = [];
function extractDateString(dateString) {
  var rx = /(\d\d\d\d)\-(\d\d)\-(\d\d)/g;
  var arr = rx.exec(dateString);
  return arr[0];
}
// Sort function which takes the data array, property to sort by and an asc boolean.
function sort_by_date(a, b) {
  return (
    new Date(b.item_date_published).getTime() -
    new Date(a.item_date_published).getTime()
  );
}
// This takes and array of items and creates the neccessary page elements
function createPageElements(items) {
  var page_elements = [];
  var sorted_items = items.sort(sort_by_date);
  $.each(sorted_items, function(key, val) {
    // Create a new element for resource
    var page_element = "<a href='" + val.item_url + "'>";
    page_element += "<div class='col-xs-12 col-sm-4'>";
    page_element +=
      "<div class='resource_block_inner' style='background-image:url(" +
      val.item_thumbnail +
      ")'>";
    page_element += "<h3>" + val.item_title + "</h3>";
    page_element +=
      "<small>" + extractDateString(val.item_date_published) + "</small>";
    page_element += "<small>" + val.item_event + "</small>";
    if (
      val.hasOwnProperty("item_presentation_url") &&
      val.item_presentation_url !== undefined
    ) {
      page_element +=
        "<a class='btn btn-primary' href='" +
        val.item_presentation_url +
        "'>Presentation</a>";
    }
    if (val.hasOwnProperty("item_video_url") && val.item_video_url !== undefined) {
      page_element +=
        "<a class='btn btn-primary' href='" +
        val.item_video_url +
        "'>Video</a>";
    }
    page_element += "</div>";
    page_element += "</div>";
    page_element += "</a>";
    page_elements.push(page_element);
  });
  return page_elements.slice(0, 9);
}

$(document).ready(function() {
  // Check the related_resources div exists
  if ($("#related_resources").length > 0) {
    // Tracks to search resources for.
    var required_tracks = $("#related_resources").data("related-tracks");
    if (required_tracks.indexOf(",") > -1) {
      required_tracks = required_tracks.split(",").map(function(item) {
        return item.trim();
      });
    } else {
      required_tracks = [required_tracks];
    }
    // Fetch relevant Connect resources
    $.getJSON("https://connect.linaro.org/assets/json/connects.json", function(
      data
    ) {
      $.each(data, function(key, val) {
        var start_date = new Date(val["start-date"]).getTime();
        if (start_date < new Date().getTime()) {
          // Get the JSON url for each Linaro Connect
          var json_url =
            "https://connect.linaro.org/assets/json/" +
            val.id.toLowerCase() +
            "/data.json";
          $.getJSON(json_url, function(data) {
            // Loop through all resources for specific connect
            $.each(data, function(key, specific_resource) {
              // Find resources that match the required tracks
              if (specific_resource.hasOwnProperty("tracks")) {
                // Loop over required tracks
                $.each(required_tracks, function(key, val) {
                  // Check that the resource contains one of the required tracks
                  if (specific_resource.tracks.indexOf(val) > -1) {
                    var event = specific_resource.event_id.toUpperCase();
                    // Create a new item
                    var item = {
                      item_title: specific_resource.title,
                      item_url: specific_resource.url,
                      item_video_url: specific_resource.youtube_video_url,
                      item_thumbnail: specific_resource.thumbnail,
                      item_event: "Linaro Connect " + event,
                      item_date_published: specific_resource.date_published
                    };
                    if (
                      specific_resource.hasOwnProperty(
                        "amazon_s3_presentation_url"
                      )
                    ) {
                      item["item_presentation_url"] =
                        specific_resource.amazon_s3_presentation_url;
                    }
                    // Add item to the items array
                    items.push(item);
                    // Break out of each loop
                    return false;
                  }
                });
              }
            });
          });
        }
      });
    });
  }
});
// Display resources once the ajaxStop event is fired
$(document).ajaxStop(function() {
  var page_elements = createPageElements(items);
  $("#related_resources").html(page_elements);
});