// Generated by CoffeeScript 1.10.0
(function() {
  window.Graph = Backbone.Model.extend({
    defaults: {
      graph: {
        nodes: [],
        links: []
      },
      selected: null
    },
    update: function(graph) {
      var index;
      index = {};
      graph.nodes.forEach(function(n) {
        return index[n.id] = n;
      });
      graph.links.forEach(function(l) {
        l.id = l.source + (l.directed ? '->' : '--') + l.target;
        l.source = index[l.source];
        return l.target = index[l.target];
      });
      return this.set('graph', graph);
    },
    select: function(id) {
      if (id === this.get('selected')) {
        return this.set('selected', null);
      } else {
        return this.set('selected', id);
      }
    }
  });

}).call(this);