var OAAS_CONTROLLER = (function (my, Backbone, OAAS_VIEW, OAAS_MODEL, _, $) {
    my.GeneralController = function () {
        this.variationRequestHandler = function (evt) {
            var self = this;
            var dialog = new OAAS_VIEW.VariationDialog({ model: evt.model });
            var dialogController = {};
            _.extend(dialogController, Backbone.Events);
            dialogController.listenTo(dialog, 'variations-generated', function (variations) {
                var parent = evt.model.get('parent');
                for (var i = 0; i < variations.length; i++) {
                    var title = evt.model.get('title');
                    var offset = title.indexOf('(')
                    if (offset != -1) {
                        title = title.substring(0, offset);
                    }
                    title += '(';
                    for (var j = 0; j < variations[i].length; j++) {
                        title += variations[i][j].Name + " = " + variations[i][j].Value + "; ";
                    }
                    title += ')';
                    var data = { AlgorithmParameters: variations[i] };
                    if (evt.model.attributes.data.ProblemParameters) {
                        data.ProblemParameters = evt.model.attributes.data.ProblemParameters;
                    }
                    parent.addNode({ title: title, nodeId: evt.model.get('nodeId'), data: data });
                }
                self.model.trigger('change');
            });
            dialog.render();
        },
        this.experimentFinishedHandler = function (experimentModel, availableExperiments, selectableGroup) {
            var loadingDialog = new OAAS_VIEW.LoadingDialog({ el: $('#loadingDialog') });
            // start the loading dialog
            loadingDialog.setLoading(true);
            loadingDialog.text('Saving experiment ' + experimentModel.get('title') + '...');
            loadingDialog.render();
            // send experiment to server
            experimentModel.save({}, { 
                success: function () {
                    loadingDialog.setLoading(false);
                    loadingDialog.text('Experiment successfully saved!');
                    loadingDialog.render();
                    if (availableExperiments)
                        availableExperiments.fetch({ cache: false, success: function (itm) {
                            selectableGroup.render();
                        }
                        });
                },
                error: function (model, response, options) {
                    loadingDialog.setLoading(false);
                    loadingDialog.text('Failed to save Experiment - Please log off an and on and try again!');
                    loadingDialog.render();
                }
            });
            //loadingDialog.close();
        }
    }

    my.ExperimentPageController = function () {
        this.refreshExperiments = function () {
            var availableExperiments = new OAAS_MODEL.ExperimentList();
            availableExperiments.fetch({ cache: false, success: function (itm) {
                var group = new OAAS_VIEW.DraggableGroup({ collection: availableExperiments, el: $('#experiments') });
                group.render();
            }
            });
        },
        this.refreshScenarios = function () {
            var availableScenarios = new OAAS_MODEL.ScenarioList();
            availableScenarios.fetch({ cache: false, success: function (itm) {
                var group = new OAAS_VIEW.DraggableGroup({ collection: availableScenarios, el: $('#algorithms') });
                group.render();
            }
            });
        },
        this.create = function () {
            var self = this;
            var generalController = new my.GeneralController();
            // create all models + required view for the experiment page
            var model = new OAAS_MODEL.ExperimentNode({
                title: 'Experiment',
                key: 0,
                isExperiment: true
            }, { parse: true });
            generalController.model = model;
            var experimentModel = new OAAS_MODEL.Experiment({ experiment: model });

            var view = new OAAS_VIEW.ExperimentTreeView({ model: model, el: $('#container') });
            view.render();

            this.refreshScenarios();

            this.refreshExperiments();

            var wizard = new OAAS_VIEW.StepWizardView({ el: $('#stepWizard') });
            wizard.render();

            var detailsView = new OAAS_VIEW.ExperimentDetailsTreeView({ model: model, el: $('#container2') });
            var validationView = new OAAS_VIEW.ValidationHintsView({ model: { header: "Validation failed!", text: ""} });
            var parameterDialog = new OAAS_VIEW.ParameterDialog({ model: model, el: $('#parameterDialog') });

            var wizardController = {};
            _.extend(wizardController, Backbone.Events);

            wizardController.listenTo(model, 'change', function () {
                // update the details view, when the model changes
                view.render();
                detailsView.render();
            });


            wizardController.listenTo(wizard, 'experiment-finished', function () {
                generalController.experimentFinishedHandler(experimentModel, null, null);
                self.refreshExperiments();
            });

            wizardController.listenTo(view, 'structure-changed', function (node) {
                view.render();
                detailsView.render();
            });

            wizardController.listenTo(view, 'node-added', function (node) {
                // get details about the node
                node.fetch({ success: function (itm) {
                    model.trigger('change', {});
                }
                });
            });

            wizardController.listenTo(detailsView, 'node-clicked', function (node) {
                // get details about the node
                var modelNode = OAAS_MODEL.ExperimentNode.lookup(node.data.key);
                if (!modelNode.get('isExperiment')) {
                    parameterDialog.model = modelNode;
                    parameterDialog.render();
                }
            });

            wizardController.listenTo(parameterDialog, 'parameters-finished', function (node) {
                parameterDialog.close();
            });

            wizardController.listenTo(view, 'variation-request', function (evt) {
                generalController.variationRequestHandler(evt);
            });

            var experimentDetailsView = new OAAS_VIEW.ExperimentDetailsView({ el: $('#step3'), model: experimentModel });


        }
    }



    /// ==================== EDIT PAGE =========================
    /// ==================== EDIT PAGE =========================
    /// ==================== EDIT PAGE =========================

    my.ExperimentEditPageController = function () {
        this.refreshScenarios = function () {
            var availableScenarios = new OAAS_MODEL.ScenarioList();
            availableScenarios.fetch({ cache: false, success: function (itm) {
                var group = new OAAS_VIEW.DraggableGroup({ collection: availableScenarios, el: $('#draggableAlgorithms') });
                group.render();
            }
            });
        },
        this.create = function () {
            var generalController = new my.GeneralController();

            var self = this;
            // create all models + required view for the experiment page
            var controllerModel = new OAAS_MODEL.ControllerModel();
            var model = new OAAS_MODEL.ExperimentNode({
                title: 'Experiment',
                key: 0,
                isExperiment: true
            }, { parse: true });

            generalController.model = model;
            var experimentModel = new OAAS_MODEL.Experiment({ experiment: model });
            var experimentDetailsView = new OAAS_VIEW.ExperimentDetailsView({ el: $('#step4'), model: experimentModel });
            experimentDetailsView.render();

            var availableExperiments = new OAAS_MODEL.ExperimentList();

            var wizardController = {};
            _.extend(wizardController, Backbone.Events);

            this.refreshScenarios();

            var selectableGroup = new OAAS_VIEW.SelectableGroup({ collection: availableExperiments, el: $('#experiments') });
            //selectableGroup.render();
            var draggableExperiments = new OAAS_VIEW.DraggableGroup({ collection: availableExperiments, el: $('#draggableExperiments') });
            availableExperiments.fetch({ cache: false, success: function (itm) {
                // selectableGroup = new OAAS_VIEW.SelectableGroup({ collection: availableExperiments, el: $('#experiments') });
                selectableGroup.render();
                draggableExperiments.render();

                wizardController.listenTo(selectableGroup, 'node-selected', function (nodeId) {
                    var node = availableExperiments.find(function (itm) { return itm.get('nodeId') == nodeId; });

                    var newNode = new OAAS_MODEL.ExperimentNode(node.attributes);
                    newNode.fetch({ success: function () {
                        experimentModel.set({
                            experiment: newNode,
                            title: node.get('title'),
                            nodeId: node.get('nodeId'),
                            run: node.get('run'),
                            repititions: node.get('repititions'),
                            group: node.get('group')
                        });
                        controllerModel.set({ selectedNode: newNode });
                        $('#deleteExperimentButton').removeAttr('disabled');
                        detailsView.model = newNode;
                        detailsView.render();
                        view.model = newNode;
                        view.render();
                        experimentDetailsView.render();
                    }
                    });
                }
                );
            }
            });

            // create wizard with 4 steps
            var wizard = new OAAS_VIEW.StepWizardView({ el: $('#stepWizard') });
            wizard.render();

            var view = new OAAS_VIEW.ExperimentTreeView({ model: model, el: $('#container') });
            view.render();
            var validationView = new OAAS_VIEW.ValidationHintsView({ model: { header: "Validation failed!", text: ""} });

            var detailsView = new OAAS_VIEW.ExperimentDetailsTreeView({ model: model, el: $('#container2') });

            var parameterDialog = new OAAS_VIEW.ParameterDialog({ model: model, el: $('#parameterDialog') });
            var loadingDialog = new OAAS_VIEW.LoadingDialog({ el: $('#loadingDialog') });

            wizardController.listenTo(wizard, 'step-validated', function (validationModel) {
                // update the details view
                if (validationModel.stepNumber == 1) {
                    if (controllerModel.get('selectedNode') == null) {
                        validationView.model["text"] = 'Please select an experiment to continue!';
                        validationView.render();
                        validationModel.succeeded = false;
                    }
                }
                detailsView.render();
            });

            wizardController.listenTo(model, 'change', function () {
                // update the details view, when the model changes
                view.render();
                detailsView.render();
            });

            wizardController.listenTo(view, 'structure-changed', function (node) {
                view.render();
            });

            wizardController.listenTo(view, 'node-added', function (node) {
                // get details about the node
                //if (!node.get('isExperiment'))
                node.fetch({ success: function (itm) {
                    model.trigger('change', {});
                }
                });
            });

            wizardController.listenTo(wizard, 'experiment-finished', function () {
                generalController.experimentFinishedHandler(experimentModel, availableExperiments, selectableGroup);
            });

            wizardController.listenTo(detailsView, 'node-clicked', function (node) {
                // get details about the node
                var modelNode = OAAS_MODEL.ExperimentNode.lookup(node.data.key);
                if (!modelNode.get('isExperiment')) {
                    parameterDialog.model = modelNode;
                    parameterDialog.render();
                }
            });

            wizardController.listenTo(view, 'variation-request', function (evt) {
                generalController.variationRequestHandler(evt);
            });

            wizardController.listenTo(parameterDialog, 'parameters-finished', function (node) {
                parameterDialog.close();
            });

            $('#deleteExperimentButton').click(function (evt) {
                var node = controllerModel.get('selectedNode');
                var nodes = availableExperiments.where({ nodeId: node.get('nodeId') });
                if (nodes.length == 1) {
                    nodes[0].destroy();
                    $('#deleteExperimentButton').attr('disabled', 'disabled');
                    controllerModel.set('selectedNode', null);
                }
            });
        }
    }
    return my;
} (OAAS_CONTROLLER || {}, Backbone, OAAS_VIEW, OAAS_MODEL, _, $));