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<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
    <link rel="stylesheet" href="items.css" type="text/css" media="screen"/>
    <title>Brooklyn Objects</title>
  </head>

  <body>
    <div id="container">
      <div id="header">
        <div id="identity">
          <a href="https://brooklyn.incubator.apache.org/" rel="home">Brooklyn</a>
        </div>
      </div>

      <ul class="nav nav-tabs">
        <li class="active"><a href="#entities" data-toggle="tab">Entities</a></li>
        <li><a href="#policies" data-toggle="tab">Policies</a></li>
        <li><a href="#enrichers" data-toggle="tab">Enrichers</a></li>
      </ul>

      <div class="tab-content">
        <div class="tab-pane active" id="entities">
          <input class="filter form-control" type="text" placeholder="Filter by type, e.g. webapp or nosql">
        </div>
        <div class="tab-pane" id="policies">
          <input class="filter form-control" type="text" placeholder="Filter by type, e.g. ha">
        </div>
        <div class="tab-pane" id="enrichers">
          <input class="filter form-control" type="text" placeholder="Filter by type, e.g. http">
        </div>
        <div class="tab-pane" id="locations"></div>
        <div class="tab-pane" id="locationResolvers"></div>
      </div>
    </div>

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js" type="text/javascript"></script>
    <script src="../../style/js/underscore-min.js" type="text/javascript"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
    <script src="libs/js/bloodhound.js" type="text/javascript"></script>
    <script src="common.js" type="text/javascript"></script>
    <script src="items.js" type="text/javascript"></script>
    <script type="text/javascript">
        if (!String.prototype.trim) {
            String.prototype.trim = function () {
                return this.replace(/^\s+|\s+$/g, '');
            };
        }
        var card = function (collection, cardFunction, target) {
            var cards = _.map(collection, cardFunction);
            $(target).append(cards.join(""));
        };
        var ESCAPE_KEY = 27;

        var filter = function (element) {
            var $element = $(element),
                $tab = $element.parent(),
                kind = $tab.attr("id"),
                collection = items[kind];
            if (!collection) {
                console.warn("Unable to determine type for input", element);
                return;
            }

            // Number.MAX_VALUE configures Bloodhound to return all matches.
            var bloodhound = new Bloodhound({
                name: kind,
                local: collection,
                limit: Number.MAX_VALUE,
                datumTokenizer: function (d) {
                    return Bloodhound.tokenizers.nonword(d.type);
                },
                queryTokenizer: Bloodhound.tokenizers.nonword
            });
            bloodhound.initialize();

            // Filter items as input changes
            var allAnchors = $tab.find("a").map(function (index, a) { return $(a); });
            var hideAnchorsNotMatchingQuery = function () {
                var query = $element.val();
                query = query.trim();
                if (!query) {
                    $tab.find("a").removeClass("hide");
                } else {
                    var matchedTypes = {};
                    bloodhound.get(query, function (suggestions) {
                        _.each(suggestions, function (s) {
                            // approximate a set!
                            matchedTypes[s.type] = true;
                        });
                    });
                    _.each(allAnchors, function (a) {
                        if (_.has(matchedTypes, a.data("type"))) {
                            a.removeClass("hide");
                        } else {
                            a.addClass("hide");
                        }
                    });
                }
            };
            $element.on("input", hideAnchorsNotMatchingQuery);
            // In case page is loaded with text in input, e.g. from back button.
            hideAnchorsNotMatchingQuery();

            $element.on("keydown", function (e) {
                if (e.keyCode == ESCAPE_KEY) {
                    $element.val("");
                    hideAnchorsNotMatchingQuery();
                }
            });
        };

        $(document).ready(function () {
            card(items.entities, brooklyn.entityCard, "#entities");
            card(items.policies, brooklyn.policyCard, "#policies");
            card(items.enrichers, brooklyn.enricherCard, "#enrichers");
            //transformItemAndAddToElement(items.locations, brooklyn.locationCard, "#locations");
            //items.locationResolvers.forEach(function (element) { $("#locationResolvers").append("<tr><td>" + element + "</td></tr>"); });
            $("input.filter").each(function (index, element) {
                filter(element);
            });
        });
    </script>
  </body>
</html>