//================== MODELS =====================
var OAAS_MODEL = (function (my, Backbone) {
    Backbone.Relational.store.addModelScope(my);

    my.ControllerModel = Backbone.Model.extend({
        defaults: {
            selectedNode: null
        }
    });

    my.Experiment = Backbone.RelationalModel.extend({
        url: function () {
            return '/Experiment/Experiment?nodeId=' + this.get('nodeId');
        },
        isNew: function () { return false; },
        defaults: {
            title: 'My Experiment',
            isExperiment: true,
            run: false,
            nodeId: null,
            repititions: 1,
            group: 'TESTAZURE'
        },
        relations: [{
            key: 'experiment',
            relatedModel: 'ExperimentNode'
        }]
    });

    my.ExperimentNode = Backbone.RelationalModel.extend({
        defaults: {
            title: 'Experiment',
            key: -1,
            data: {},
            parent: null,
            isExperiment: false,
            nodeId: null
        },        
        relations: [{
            type: Backbone.HasMany,
            key: 'children',
            relatedModel: 'ExperimentNode',
            collectionType: 'AlgorithmList',
            reverseRelation: {
                key: 'parent'
            }
        }],
        url: function () {
            return this.get('isExperiment') ? '/Experiment/Experiment?nodeId=' + this.get('nodeId') : '/Experiment/Scenario?nodeId=' + this.get('nodeId');
        },
        initialize: function (spec) {
            if (typeof spec.key === 'undefined' || spec.key == -1) {
                spec.key = my.ExperimentNode.globalKeyCount;
                this.set({ key: spec.key });
                my.ExperimentNode.globalKeyCount++;
            }
            else if (spec.key >= my.ExperimentNode.globalKeyCount)
                my.ExperimentNode.globalKeyCount = spec.key + 1;

            my.ExperimentNode.globalNodeMap[spec.key] = this;
        },
        // adds a new experimentNode to this node
        addNode: function (experimentNode) {
            if (!(experimentNode instanceof my.ExperimentNode)) {
                experimentNode = new my.ExperimentNode(experimentNode);
            }
            this.get('children').add(experimentNode);
            experimentNode.set({ parent: this });
            this.trigger('node-added', experimentNode);
            return experimentNode;
        },
        // moves an experimentNode into this node
        moveNode: function (experimentNode) {
            var parent = experimentNode.get('parent');
            if (parent != null) {
                // remove from parent
                parent.get('children').remove(experimentNode);
            }
            this.addNode(experimentNode);
        },
        // delete this node
        remove: function () {
            var parent = this.get('parent');
            if (parent != null) {
                parent.get('children').remove(this);
                this.set({ parent: null });
                // simply replace it with 'undefined'
                delete my.ExperimentNode.globalNodeMap[this.get('key')];
            }
        },
        lookup: function (key) {
            return my.ExperimentNode.globalNodeMap[key];
        }
    },
  {
      globalKeyCount: 0,
      globalNodeMap: {},
      lookup: function (key) {
          return my.ExperimentNode.globalNodeMap[key];
      },
      nextGlobalKey: function () {
          var key = my.ExperimentNode.globalKeyCount;
          my.ExperimentNode.globalKeyCount++;
          return key;
      }
  }
  );

    my.ExperimentList = Backbone.Collection.extend({
        url: function () {
            return "/Experiment/ExperimentList";
        },
        model: my.Experiment
    });

    my.AlgorithmList = Backbone.Collection.extend({
        url: function () {
            return "/Experiment/AlgorithmList";
        },
        model: my.ExperimentNode
    });

    my.ScenarioList = Backbone.Collection.extend({
        url: function () {
            return "/Experiment/ScenarioList";
        },
        model: my.ExperimentNode
    });
    return my;
} (OAAS_MODEL || {}, Backbone));