var OAAS_VIEW = (function (my, Backbone, _, $, OAAS_MODEL) {
    // ================ VIEWS =======================
    my.ExperimentTreeView = Backbone.View.extend({
        renderTree: function (model) {
            var jsonModel = model.toJSON();
            var self = this;
            this.tree = $('<div />').dynatree({
                children: [jsonModel],
                autoExpandMS: 750,
                onActivate: function (node) {
                    // if we are able to remove this node from the tree, enable the remove button.
                    if (node && node.parent.parent != null) {
                        $('.remove-button', this.$el).removeAttr("disabled");
                    } else if (node) {
                        $('.remove-button', this.$el).attr("disabled", "disabled");
                    }

                    var modelNode = OAAS_MODEL.ExperimentNode.lookup(node.data.key);
                    if (modelNode && !modelNode.get('isExperiment')) {
                        $('.variate-button', this.$el).removeAttr("disabled");
                    } else {
                        $('.variate-button', this.$el).attr("disabled", "disabled");
                    }
                },
                dnd: {
                    onDragStart: function (node) {
                        return node.parent.parent != null;
                    },
                    onDragEnter: function (node, sourceNode) {
                        return true;
                    },
                    onDragOver: function (node, sourceNode, hitMode) {
                        return node.data.title !== "Experiment" || hitMode === "over";
                    },
                    onDrop: function (node, sourceNode, hitMode, ui, draggable) {
                        if (hitMode !== 'over')
                            return;
                        var modelNode = OAAS_MODEL.ExperimentNode.lookup(node.data.key);
                        if (sourceNode) {
                            var sourceModelNode = OAAS_MODEL.ExperimentNode.lookup(sourceNode.data.key);
                            sourceNode.move(node, hitMode);
                            // move node into the modelNode
                            sourceModelNode.moveNode(modelNode);
                        }
                        else {
                            var elem = $(draggable.element[0]);
                            var newNode = { nodeId: elem.attr('id'), isExperiment: elem.attr('data-isExperiment') === 'true', title: elem.attr('data-name'), key: OAAS_MODEL.ExperimentNode.nextGlobalKey() };
                            if (hitMode == "over") {
                                node.addChild(newNode);
                                node.expand(true);
                                // update the data model
                                newNode = modelNode.addNode(newNode);
                                self.trigger('node-added', newNode);
                            }
                        }
                        self.trigger('structure-changed', modelNode);
                    }
                }
            });
            this.tree.dynatree("getRoot").visit(function (node) {
                node.expand(true);
            });
        },
        initialize: function (spec) {
            this.renderTree(spec.model);
        },
        events: {
            'click .remove-button': 'doRemove',
            'click .variate-button': 'doVariate'
        },
        render: function () {
            this.$el.empty();
            this.renderTree(this.model);
            var content = $(_.template($('#stepwizard_template').html(), {}));
            this.tree.appendTo(this.$el);
            content.appendTo(this.$el);
        },
        doRemove: function () {
            var node = this.tree.dynatree('getActiveNode');
            if (node && node.parent.parent != null) {
                var nxt = node.getNextSibling();
                if (nxt == null)
                    nxt = node.getPrevSibling();
                if (nxt == null)
                    nxt = node.getParent();
                node.remove();
                OAAS_MODEL.ExperimentNode.lookup(node.data.key).remove();
                if (nxt) {
                    this.tree.dynatree("getTree").activateKey(nxt.data.key);
                }
            }
            this.trigger('structure-changed', node);
        },
        doVariate: function () {
            var node = this.tree.dynatree('getActiveNode');
            var modelNode = OAAS_MODEL.ExperimentNode.lookup(node.data.key);
            this.trigger('variation-request', {
                parentNode: node.parent,
                model: modelNode
            });
        }
    });

    my.ExperimentDetailsTreeView = Backbone.View.extend({
        render: function () {
            var jsonModel = this.model.toJSON();
            var self = this;
            var tree = $('<div />').dynatree({
                children: [jsonModel],
                autoExpandMS: 750,
                onActivate: function (node) {
                    // if we click a node, simply open a dialog to enter it's parameters
                    self.trigger('node-clicked', node);
                }
            });

            this.$el.empty();
            tree.appendTo(this.$el);
            tree.dynatree("getRoot").visit(function (node) {
                node.expand(true);
            });
        }
    });

    my.DraggableGroup = Backbone.View.extend({
        initialize: function () {
            this.collection.bind('remove', this.render, this);
            this.collection.bind('add', this.render, this);
        },
        render: function () {
            var self = this;
            var div = $('<div />');
            if (this.collection.length == 0) {
                $('<p></p>').text("No items found!").appendTo(div);
            }
            for (var i = 0; i < this.collection.length; i++) {
                new my.DraggableView({ model: this.collection.models[i], el: div }).render();
            }

            this.$el.empty();
            div.appendTo(this.$el);
        }
    });


    my.DraggableView = Backbone.View.extend({
        render: function () {
            var late = _.template($("#draggable_template").html(), this.model.attributes);
            $(late).draggable({
                revert: true,
                connectToDynatree: true,
                cursorAt: { top: -5, left: -5 },
                helper: "clone"
            }).appendTo(this.$el);
        }
    });

    my.SelectableGroup = Backbone.View.extend({
        initialize: function () {
            this.collection.bind('remove', this.render, this);
            this.collection.bind('add', this.render, this);
            this.collection.bind('change', this.render, this);
        },
        render: function () {
            var self = this;
            var div = $('<div />');
            if (this.collection.length == 0) {
                $('<p></p>').text("No experiments found!").appendTo(div);
            }

            for (var i = 0; i < this.collection.length; i++) {
                new my.SelectableView({ model: this.collection.models[i], el: div }).render();
            }
            this.$el.empty();
            div.selectable({
                filter: 'div',
                selected: function (event, ui) {
                    self.selected(event, ui);
                }
            }).appendTo(this.$el);
        },
        selected: function (event, ui) {
            var nodeId = $(ui.selected).attr('id');
            this.trigger('node-selected', nodeId);
        }
    });

    my.SelectableView = Backbone.View.extend({
        render: function () {
            var late = _.template($("#draggable_template").html(), this.model.attributes);
            $(late).appendTo(this.$el);
        }
    });

    my.StepWizardView = Backbone.View.extend({
        render: function () {
            var self = this;
            this.$el.smartWizard({
                keyNavigation: false,
                onLeaveStep: function (step) {
                    var stepNum = parseInt(step.attr("rel"));
                    return self.validateStep(stepNum);
                },
                onShowStep: function (step) {
                    var stepNum = parseInt(step.attr("rel"));
                    return self.showStep(stepNum);
                },
                onFinish: function () {
                    self.trigger('experiment-finished');
                }
            });
        },
        validateStep: function (stepNumber) {
            var validationModel = {
                stepNumber: stepNumber,
                succeeded: true
            };
            this.trigger('step-validated', validationModel);
            return validationModel.succeeded;
        },
        showStep: function (stepNumber) {
            this.trigger('step-shown', stepNumber);
            return true;
        }
    });

    my.ParameterWizard = Backbone.View.extend({
        createWizard: function (steps) {
            // use template instead of jquery?!
            var newWizard = $('<div />').addClass('wizard swMain');
            var stepMenu = $('<ul />');
            var prefix = name + '_';
            for (var i = 0; i < steps.length; i++) {
                var step = steps[i];
                var a = $('<a></a>', { href: '#' + prefix + (i + 1) });
                $('<label />').addClass("stepNumber").text((i + 1)).appendTo(a);
                $('<span />').addClass("stepDesc").html(step.heading + '<br /><small>' + step.description + '</small>').appendTo(a);
                var li = $('<li />').append(a);
                li.appendTo(stepMenu);
            }
            stepMenu.appendTo(newWizard);
            for (var i = 0; i < steps.length; i++) {
                var div = $('<div />', { id: prefix + (i + 1) });
                if (steps[i].content && steps[i].content != null)
                    div.append(steps[i].content);
                div.appendTo(newWizard);
            }
            return newWizard;
        },
        render: function () {
            var self = this;
            this.$el.empty();
            var data = this.model.get('data');

            var hasProblemParameters = typeof data.ProblemParameters !== 'undefined';
            var dialog = $('<div />');
            var algoDiv = $('<div />');
            var problemDiv = $('<div />');

            for (var i = 0; i < data.AlgorithmParameters.length; i++) {
                var parameterView = new my.ParameterEditableView({ model: data.AlgorithmParameters[i] });
                // render to dialog
                parameterView.render();
                parameterView.$el.appendTo(algoDiv);
            }

            if (hasProblemParameters) {
                var problemParameters = data.ProblemParameters;
                for (var i = 0; i < problemParameters.length; i++) {
                    var parameterView = new my.ParameterEditableView({ model: problemParameters[i] });
                    // render to dialog
                    parameterView.render();
                    parameterView.$el.appendTo(problemDiv);
                }
            }

            var newWizard =
          hasProblemParameters ?
            this.createWizard([
              { heading: "Algorithm Parameters", description: "Adjust algorithm parameters", content: algoDiv },
              { heading: "Problem Parameters", description: "Adjust problem parameters", content: problemDiv }
            ]) :
            this.createWizard([
              { heading: "Algorithm Parameters", description: "Adjust algorithm parameters", content: algoDiv }
            ]);

            newWizard.appendTo(this.$el);
            newWizard.smartWizard({
                keyNavigation: false,
                onFinish: function () {
                    self.trigger('parameters-finished');
                }
            });
        }
    });

    my.ParameterEditableView = Backbone.View.extend({
        /*events: {
        'change': 'valueChanged'
        },*/
        render: function () {
            var mapper = new my.DatatypeMapper();
            var content = $(_.template($('#parameter_template').html(), this.model));
            mapper.mapHtml(this.model, $('.rightEntry', content));
            content.appendTo(this.$el);
        } /*,
        valueChanged: function (param) {
            var value = $(param.target).val();
            if (!isNaN(value))
                value = parseFloat(value);
            var name = $(param.target).attr("name");
            // normally a controller would do this, just for once, let the view update the model
            var splitted = name.split("_");
            if (splitted.length == 1) {
                this.model.Value = value;
            } else if (splitted.length == 2) {
                this.model.Value[parseInt(splitted[1])] = value;
            } else if (splitted.length == 3) {
                this.model.Value[parseInt(splitted[1])][parseInt(splitted[2])] = value;
            }
        }*/
    });


    my.LoadingDialog = Backbone.View.extend({
        initialize: function () {
            this.reset();
        },
        render: function () {
            var self = this;
            this.$el.empty();
            var dialog = $('<div />');
            this.content.appendTo(dialog);
            dialog.appendTo(this.$el);
            this.$el.dialog({
                autoOpen: true
            });
        },
        text: function (txt) {
            $('p', this.$el).text(txt);
        },
        setLoading: function (isLoading) {
            if (isLoading)
                $('img', this.$el).show();
            else
                $('img', this.$el).hide();
        },
        reset: function () {
            this.content = $(_.template($('#loading_template').html(), {}));
        },
        setContent: function (el) {
            this.content = el;
        },
        close: function () {
            this.$el.dialog("close");
        }
    });


    my.ParameterDialog = Backbone.View.extend({
        render: function () {
            var self = this;

            this.$el.empty();
            var data = this.model.get('data');

            var hasProblemParameters = typeof data.ProblemParameters !== 'undefined';
            var dialog = $('<div />');

            var parameterWizard = new my.ParameterWizard({ model: this.model, el: dialog });
            parameterWizard.render();
            this.listenTo(parameterWizard, 'parameters-finished', function () {
                self.trigger('parameters-finished');
            });
            dialog.appendTo(this.$el);
            this.$el.dialog({
                autoOpen: true,
                width: 1024,
                height: 768
            });
        },
        close: function () {
            this.$el.dialog("close");
        }
    });

    my.ExperimentDetailsView = Backbone.View.extend({
        events: {
            'change': 'valueChanged'
        },
        valueChanged: function (param) {
            var value = $(param.target).val();
            if (!isNaN(value))
                value = parseFloat(value);
            var name = $(param.target).attr("name");
            if (name == 'Name')
                this.model.set({ title: value });
            else if (name == 'RunImmediately')
                this.model.set({ run: $(param.target).is(':checked') });
            else if (name == 'Repititions')
                this.model.set({ repititions: value });
            else if (name == 'Group')
                this.model.set({ group: value });

            if (this.model.get('run')) {
                $('input[name="Repititions"]', this.$el).removeAttr('disabled');
                $('input[name="Group"]', this.$el).removeAttr('disabled');
            } else {
                $('input[name="Repititions"]', this.$el).attr('disabled', 'disabled');
                $('input[name="Group"]', this.$el).attr('disabled', 'disabled');
            }
        },
        render: function () {
            $('input[name="Name"]', this.$el).val(this.model.get('title'));
            $('input[name="RunImmediately"]', this.$el).attr('checked', this.model.get('run'));
            $('input[name="Repititions"]', this.$el).val(this.model.get('repititions'));
            $('input[name="Group"]', this.$el).val(this.model.get('group'));
        }
    });

    my.ValidationHintsView = Backbone.View.extend({
        render: function () {
            var template = _.template($('#validationhints_template').html(), this.model);
            $(template).dialog({
                resizable: false,
                modal: true,
                buttons: {
                    "OK": function () {
                        $(this).dialog("close");
                    }
                }
            });
        }
    });

    // ========== Variation Dialog Views ============

    my.VariationDialog = Backbone.View.extend({
        initialize: function (spec) {

        },
        events: {
            'change': 'entrySelected'
        },
        render: function () {
            var self = this;
            var dialog = $(_.template($('#variationdialog_template').html(), {}));

            var content = $('select[class="variationDialogContent"]', dialog);
            var data = this.model.get('data');
            for (var i = 0; i < data.AlgorithmParameters.length; i++) {
                data.AlgorithmParameters[i].Index = i;
                var entry = new my.VariationEntryView({ model: data.AlgorithmParameters[i], el: content });
                entry.render();
            }

            this.details = $('div[class="variationDetails"]', dialog);
            this.activateButton = $('input[name="active"]', dialog);
            this.activateButton.change(function (evt) {
                var checked = $(evt.target).is(':checked');
                if (self.selectedModel && self.selectedModel != null) {
                    self.selectedModel.Active = checked;
                }

                if (self.selectedModel.Active) {
                    $('*', self.details).removeAttr('disabled');
                }
                else {
                    //$('input,button,select', self.details).attr('disabled', 'disabled');
                    $('*', self.details).attr('disabled', 'disabled');
                }
            });
            dialog.dialog({
                height: 300,
                buttons: {
                    "Abort": function () {
                        $(this).dialog("close");
                    },
                    "OK": function () {
                        self.generateVariations();
                        $(this).dialog("close");
                    }
                }
            });

            content.change(function (evt) {
                var optionSelected = $("option:selected", this);
                var model = self.model.get('data').AlgorithmParameters[parseInt($(optionSelected).attr('data-index'))]
                self.entrySelected(model);
            });

            this.variationDetails = new my.VariationContentView({ el: this.details });
            var model = this.model.get('data').AlgorithmParameters[0];
            this.entrySelected(model);
        },
        entrySelected: function (model) {
            this.selectedModel = model;
            this.variationDetails.model = model;
            this.details.empty();
            this.variationDetails.render();
            if (model.Active) {
                this.activateButton.attr('checked', 'checked');
                $('*', this.details).removeAttr('disabled');
            }
            else {
                this.activateButton.removeAttr('checked');
                $('*', this.details).attr('disabled', 'disabled');
            }
        },
        generateVariations: function () {
            this.solutions = [];
            this.exhaust(0, []);
            this.trigger('variations-generated', this.solutions);
        },
        exhaust: function (index, element) {
            if (index == this.model.get('data').AlgorithmParameters.length) {
                // we found a solution! store it by creating a deep copy
                this.solutions.push($.extend(true, [], element));
                return;
            }

            var currentParameter = this.model.get('data').AlgorithmParameters[index];
            if (currentParameter.Active && currentParameter.Generated) {
                for (var i = 0; i < currentParameter.Generated.length; i++) {
                    element[index] = {
                        Name: currentParameter.Name,
                        Value: currentParameter.Generated[i]
                    };
                    if (currentParameter.Options) {
                        element[index].Options = currentParameter.Options;
                    }
                    this.exhaust(index + 1, element);
                }
            } else {
                element[index] = {
                    Name: currentParameter.Name,
                    Value: currentParameter.Value
                };
                if (currentParameter.Options) {
                    element[index].Options = currentParameter.Options;
                }
                this.exhaust(index + 1, element);
            }
        }
    });

    my.TableEditView = Backbone.View.extend({
        events: {
            'change': 'valueChanged',
            'click button[data-operation="Add"]': 'addClicked',
            'click button[data-operation="Remove"]': 'removeClicked'
        },
        render: function () {
            this.$el.empty();
            // http: //stackoverflow.com/questions/8749236/create-table-with-jquery-append
            var table = $('<table></table>').addClass('editableTable');

            // determine dimensions
            var rows = this.model.length;
            var columns = 1;
            if ($.isArray(this.model[0])) {
                columns = this.model[0].length;
            }

            // create head elements
            var head = $('<thead></thead>');
            var headerRow = $('<tr></tr>');
            headerRow.appendTo(head);
            if (this.options.rowNames) {
                var rowNames = this.options.rowNames;
                for (var i = 0; i < rowNames.length; i++) {
                    $('<td />').text(rowNames[i]).appendTo(headerRow);
                }
            } else {
                for (var i = 0; i < columns; i++) {
                    $('<td />').text((i + 1) + '. Column').appendTo(headerRow);
                }
            }
            head.appendTo(table);

            // create body
            var body = $('<tbody></tbody>');

            for (var i = 0; i < rows; i++) {
                var row = $('<tr></tr>');
                for (var j = 0; j < columns; j++) {
                    var rowContent = this.model[i];
                    var columnEntry = $.isArray(rowContent) ? rowContent[j] : rowContent;
                    var col = $('<td></td>');
                    if (this.options.editable) {
                        $('<input type="text" name="' + i + '_' + j + '" />').val(columnEntry).appendTo(col);
                    } else {
                        col.text(columnEntry);
                    }
                    col.appendTo(row);
                }
                if (this.options.editable) {
                    $('<button data-operation="Add" name="' + i + '" />').val(columnEntry).text('+').appendTo(col);
                    $('<button data-operation="Remove" name="' + i + '" />').val(columnEntry).text('-').appendTo(col);
                }
                row.appendTo(body);
            }
            body.appendTo(table);

            table.appendTo(this.$el);
            if (this.options.useDatatable)
                table.dataTable();
        },
        valueChanged: function (evt) {
            var target = $(evt.target);
            var value = target.val();
            var index = target.attr('name');
            var splittedName = index.split('_');
            var i = parseInt(splittedName[0]);
            var j = parseInt(splittedName[1]);
            if ($.isArray(this.model[i])) {
                this.model[i][j] = parseFloat(value);
            } else {
                this.model[i] = parseFloat(value);
            }
        },
        addClicked: function (evt) {
            var target = $(evt.target);
            var index = target.attr('name');
            var i = parseInt(index);
            if ($.isArray(this.model[i])) {
                var cpy = [];
                for (var j = 0; j < this.model[i].length; j++) {
                    cpy.push(this.model[i][j]);
                }
                this.model.splice(i, 0, cpy);
            } else {
                this.model.splice(i, 0, this.model[i]);
            }
            // render after model changes
            this.render();
        },
        removeClicked: function (evt) {
            var target = $(evt.target);
            var index = target.attr('name');
            var i = parseInt(index);
            this.model.splice(i, 1);
            // render after model changes
            this.render();
        }
    });

    my.NumberEditableView = Backbone.View.extend({
        events: {
            'change': 'valueChanged'
        },
        render: function () {
            $('<input type="text" />').val(this.model.Value).appendTo(this.$el);

        },
        valueChanged: function (evt) {
            var value = $(evt.target).val();
            if (!isNaN(value)) {
                value = parseFloat(value);
                this.model.Value = value;
            } else {
                $('input', this.$el).val(this.model.Value);
            }
        }
    });

    my.SelectionView = Backbone.View.extend({
        events: {
            'change': 'checked'
        },
        render: function () {
            this.$el.empty();
            var s = $('<select />').attr('data-name', this.model.Name).appendTo(this.$el);
            for (var i = 0; i < this.model.Options.length; i++) {
                $('<option />', { value: this.model.Options[i], text: this.model.Options[i] }).appendTo(s);
            }
            s.val(this.model.Value);
        },
        checked: function (evt) {
            var value = $(evt.target).val();
            var name = $(evt.target).attr('data-name')
            this.trigger('selected', { name: name, value: value });
        }
    });

    my.OptionSelectionView = Backbone.View.extend({
        events: {
            'change': 'checked'
        },
        render: function () {
            this.$el.empty();
            if ($.isArray(this.model)) {
                for (var i = 0; i < this.model.length; i++) {
                    $(_.template($('#checkbox_template').html(), { checked: false, name: this.model[i], text: this.model[i], hideText: this.options.hideText })).appendTo(this.$el);
                }
            }
            else {
                $(_.template($('#checkbox_template').html(), { checked: this.model, name: this.model, text: this.model, hideText: this.options.hideText })).appendTo(this.$el);
            }
        },
        checked: function (evt) {
            var checked = $(evt.target).is(':checked');
            var name = $(evt.target).attr('name')
            this.trigger('changed', { name: name, checked: checked });
        }
    });

    my.VariationContentView = Backbone.View.extend({
        render: function () {
            var self = this;
            if (this.model.Value === 'false' || this.model.Value === 'true' ||
              this.model.Value === true || this.model.Value === false) {
                $(_.template($('#variation_boolean_template').html(), {})).appendTo(this.$el);
                this.model.Generated = [false, true];
            }
            else if (!isNaN(this.model.Value)) {
                var elem = $(_.template($('#variation_number_template').html(), {}));
                elem.appendTo(this.$el)
                $('input[name="generate"]', elem).click(function (evt) { self.openGenerator(evt); });
                if (!this.model.Generated) {
                    this.model.Generated = [0, 1, 2];
                }
                var tev = new my.TableEditView({ model: this.model.Generated, el: $('div div', this.$el), editable: true });
                tev.render();
            }
            else if (this.model.Options) {
                var osv = new my.OptionSelectionView({ model: this.model.Options, el: this.$el });
                this.listenTo(osv, 'changed', function (evt) {
                    self.selectionChanged(evt);
                });
                if (!this.model.Generated)
                    this.model.Generated = [];
                osv.render();
                for (var i = 0; i < this.model.Generated.length; i++) {
                    $('input[name="' + this.model.Generated[i] + '"]', this.$el).attr('checked', 'checked');
                }
            }
        },
        openGenerator: function (evt) {
            var self = this;
            var generator = new my.GeneratorDialog();
            this.listenTo(generator, 'success', function (data) {
                self.doGenerate(data);
            });
            generator.render();
        },
        doGenerate: function (data) {
            if (data.minimum > data.maximum) {
                var tmp = data.minimum;
                data.minimum = data.maximum;
                data.maximum = tmp;
            }
            if (data.step < 0)
                data.step *= -1;
            if (data.step == 0)
                data.step = 1;
            this.model.Generated = _.range(data.minimum, data.maximum + 1, data.step);
            var tev = new my.TableEditView({ model: this.model.Generated, el: $('div div', this.$el), editable: true });
            tev.render();
        },
        selectionChanged: function (evt) {
            if (!evt.checked) {
                this.model.Generated = _.without(this.model.Generated, evt.name);
            } else if (_.indexOf(this.model.Generated, evt.name) == -1) {
                this.model.Generated.push(evt.name);
            }
        }
    });

    my.GeneratorDialog = Backbone.View.extend({
        render: function () {
            var self = this;
            var generator = $(_.template($('#variation_generator_template').html(), {}));
            generator.dialog({
                buttons: {
                    "Abort": function () {
                        $(this).dialog("close");
                    },
                    "OK": function () {
                        $(this).dialog("close");
                        self.trigger("success", {
                            minimum: parseInt($('input[name="minimum"]', generator).val()),
                            maximum: parseInt($('input[name="maximum"]', generator).val()),
                            step: parseFloat($('input[name="step"]', generator).val())
                        });
                    }
                }
            });
        }
    });

    my.VariationEntryView = Backbone.View.extend({
        render: function () {
            var entryTemplate = _.template($('#variationentry_template').html(), this.model);
            $(entryTemplate).appendTo(this.$el);
        }
    });

    // ========================== Run Collection Views ===================================

    function percentile(p, data) {
        var i = (data.length * p) / 100 + 0.5;
        var f = i - parseInt(i);
        var k = Math.floor(i) - 1;
        return (1 - f) * data[k] + f * data[k + 1];
    }

    my.RunCollectionView = Backbone.View.extend({
        events: {
            'change .x': 'xAxisSelected',
            'change .y': 'yAxisSelected',
            'change .plotType': 'plotSelected',
            'change .datatableOptions': 'datatableSelected',
            'change .datatableRow': 'datatableRowSelected',
            'change .bubbleSize': 'bubbleTypeSelected'
        },
        render: function () {
            if (this.model.models.length == 0)
                return;

            var self = this;
            var ele = $(_.template($('#runcollection_template').html(), {}));
            var xAxisSelect = $('.x', ele);
            var yAxisSelect = $('.y', ele);
            var results = this.model.models[0].get('results');
            this.options.datatables = {};
            var datatableSelect = $('.datatableOptions', ele);

            var names = [];
            var previouslyFound = { results: {}, params: {} };
            _.each(this.model.models, function (model) {
                _.each(model.get('results'), function (res) {
                    if (!previouslyFound['results'][res.Name]) {
                        previouslyFound['results'][res.Name] = true;
                        names.push({ name: res.Name, source: 'results' });
                    }
                });
                _.each(model.get('params'), function (res) {
                    if (!previouslyFound['params'][res.Name]) {
                        previouslyFound['params'][res.Name] = true;
                        names.push({ name: res.Name, source: 'params' });
                    }
                });
            });
            previouslyFound = {};
            this.options.modelMapping = names;
            this.bubbleSelect = $('select[class="bubbleSize"]', ele);

            _.each(names, function (entry) {
                var option = $("<option />", { value: entry.name, text: entry.name });
                option.clone().appendTo(xAxisSelect);
                option.clone().appendTo(yAxisSelect);
                option.clone().appendTo(self.bubbleSelect);
                var rowNames = null;
                var foundModel = _.find(self.model.models, function (model) {
                    var e = _.find(model.get(entry.source), function (e) { return e.Name == entry.name && e.RowNames });
                    if (e)
                        rowNames = e.RowNames;
                    return e && e.RowNames;
                });
                if (rowNames) {
                    self.options.datatables[entry.name] = rowNames;
                    $('<option />', { value: entry.name, text: entry.name }).appendTo(datatableSelect);
                }
            });

            // prepare slider settings
            this.options.bubbleSize = 10;
            this.options.xAxis = this.model.models[0].get('results')[0].Name;
            this.options.yAxis = this.options.xAxis;
            this.options.selectedXIndex = 0;
            this.options.selectedYIndex = 0;
            this.options.plot = 'Boxplot';
            $('div[class="bubbleSlider"]', ele).slider({
                range: "max",
                min: 10,
                max: 40,
                value: 10,
                stop: function (event, ui) {
                    self.options.bubbleSize = ui.value;
                    self.createPlot();
                }
            }).css('width', '120px').css('margin-left', '15px').css('margin-right', '15px').css('display', 'inline-block');
            ele.appendTo(this.$el);

            // init resizer
            this.plotWidth = 500;
            this.plotHeight = 500;
            var parent = $('div[class="resizer"]', this.$el);
            this.resizerView = new my.ResizableView({ el: parent });
            this.listenTo(this.resizerView, 'resized', function (evt) {
                self.updatePlot(
         $(evt.target).width() * 0.96,
         $(evt.target).height() * 0.96
        );
            });
            this.resizerView.render();
            this.updateRowSelect(datatableSelect.val());
            this.createPlot();
            this.updatePlot(
         600,
         500
        );
        },
        updateRowSelect: function (name) {
            if (!name)
                return;
            var rowSelect = $('select[class="datatableRow"]', this.$el);
            rowSelect.empty();
            var rownames = this.options.datatables[name];
            for (var i = 0; i < rownames.length; i++) {
                $('<option />', { value: rownames[i], text: rownames[i] }).appendTo(rowSelect);
            }
            this.options.selectedDatatable = name;
            this.options.datatableRow = rowSelect.val();
            this.createPlot();
        },
        datatableSelected: function (evt) {
            var value = $(evt.target).val();
            this.options.selectedDatatable = value;
            this.updateRowSelect(value);
        },
        datatableRowSelected: function (evt) {
            var value = $(evt.target).val();
            this.options.datatableRow = value;
            this.createPlot();
        },
        xAxisSelected: function (evt) {
            var target = $(evt.target);
            this.options.selectedXIndex = target.prop("selectedIndex");
            this.options.xAxis = target.val();
            this.createPlot();
        },
        yAxisSelected: function (evt) {
            var target = $(evt.target);
            this.options.selectedYIndex = target.prop("selectedIndex");
            this.options.yAxis = target.val();
            this.createPlot();
        },
        plotSelected: function (evt) {
            var target = $(evt.target);
            this.options.plot = target.val();
            this.createPlot();
        },
        bubbleTypeSelected: function (evt) {
            this.createPlot();
        },
        updateVisibility: function (evt) {
            if (this.options.plot == 'Boxplot') {
                $('span[class="choice"]', this.$el).show();
                $('span[class="bubble"]', this.$el).hide();
                $('span[class="datatable"]', this.$el).hide();
            } else if (this.options.plot == 'Bubblechart') {
                $('span[class="choice"]', this.$el).show();
                $('span[class="bubble"]', this.$el).show();
                $('span[class="datatable"]', this.$el).hide();
            } else if (this.options.plot == 'Datatable') {
                $('span[class="choice"]', this.$el).hide();
                $('span[class="bubble"]', this.$el).hide();
                $('span[class="datatable"]', this.$el).show();
            }
        },
        updatePlot: function (width, height) {
            this.plotDiv.height(height);
            this.plotDiv.width(width);
            this.plotWidth = width;
            this.plotHeight = height;
            this.plot.refresh();
        },
        createPlot: function () {
            if (this.options.plot && this.options.xAxis && this.options.yAxis) {
                if (this.options.plot == 'Boxplot') {
                    this.createBoxplot();
                } else if (this.options.plot == 'Bubblechart') {
                    this.createBubblechart();
                } else if (this.options.plot == 'Datatable') {
                    this.createDatatable();
                }
                this.updateVisibility();
            }
        },
        preparePlotDiv: function () {
            var parent = $('div[class="plot"]', this.$el);
            parent.empty();
            this.plotDiv = $('<div></div>').css('width', this.plotWidth).css('height', this.plotHeight).appendTo(parent);
            return this.plotDiv;
        },
        createBoxplot: function () {
            var self = this;
            var parameterXSource = this.options.modelMapping[this.options.selectedXIndex].source; // either 'params' or 'results'
            var parameterYSource = this.options.modelMapping[this.options.selectedYIndex].source; // either 'params' or 'results'
            // prepare data for boxplot
            var values = {};
            for (var i = 0; i < this.model.models.length; i++) {
                var xlabel = _.find(this.model.models[i].get(parameterXSource), function (itm) { return itm.Name == self.options.xAxis });
                if (!xlabel)
                    continue;

                if ($.isArray(xlabel.Value))
                    values[parameterXSource + '.' + xlabel.Name + ' = ' + xlabel.Value[0]] = [];
                else
                    values[parameterXSource + '.' + xlabel.Name + ' = ' + xlabel.Value] = [];
            }

            for (var i = 0; i < this.model.models.length; i++) {
                var xlabel = _.find(this.model.models[i].get(parameterXSource), function (itm) { return itm.Name == self.options.xAxis });
                var entry = _.find(this.model.models[i].get(parameterYSource), function (itm) { return itm.Name == self.options.yAxis });
                if (!xlabel || !entry || !entry.Value)
                    continue;

                var index = parameterXSource + '.' + xlabel.Name + ' = ' + ($.isArray(xlabel.Value) ? xlabel.Value[0] : xlabel.Value);

                if ($.isArray(entry.Value))
                    values[index].push(entry.Value[0]);
                else
                    values[index].push(entry.Value);
            }

            // create boxplot
            var div = this.preparePlotDiv();
            var boxPlot = new my.BoxplotView({ model: values, el: div });
            this.plot = boxPlot;
            boxPlot.render();
        },
        createBubblechart: function () {
            var self = this;
            var parameterXSource = this.options.modelMapping[this.options.selectedXIndex].source; // either 'params' or 'results'
            var parameterYSource = this.options.modelMapping[this.options.selectedYIndex].source; // either 'params' or 'results'
            // prepare data for bubble chart
            var values = [];
            var autoscaleBubbles = this.bubbleSelect.val() != 'Constant';
            for (var i = 0; i < this.model.models.length; i++) {
                var xValue = _.find(this.model.models[i].get(parameterXSource), function (itm) { return itm.Name == self.options.xAxis });
                var yValue = _.find(this.model.models[i].get(parameterYSource), function (itm) { return itm.Name == self.options.yAxis });
                if (!xValue || !yValue)
                    continue;

                // determine size
                var size = 0;
                if (this.bubbleSelect.val() == 'Constant') {
                    size = this.options.bubbleSize;
                } else {
                    var valueProvider = _.find(this.model.models[i].get('results'), function (itm) { return itm.Name == self.bubbleSelect.val(); });
                    if (!valueProvider)
                        valueProvider = _.find(this.model.models[i].get('params'), function (itm) { return itm.Name == self.bubbleSelect.val(); });

                    if (!valueProvider) {
                        size = this.options.bubbleSize;
                    } else {
                        var value = valueProvider.Value;
                        while ($.isArray(value)) {
                            value = value[0];
                        }
                        size = parseInt(value.replace(/,/, '.'));
                        if (isNaN(size))
                            size = this.options.bubbleSize;
                    }
                }

                // add element
                var xFloat = parseFloat(xValue.Value.replace(/,/, '.'));
                var yFloat = parseFloat(yValue.Value.replace(/,/, '.'));

                values.push([xFloat, yFloat, size, 'Run' + (i + 1)]);
            }

            // render bubble chart
            var div = this.preparePlotDiv();
            var bubblePlot = new my.BubbleplotView({ model: values, el: div, autoscale: autoscaleBubbles });
            this.plot = bubblePlot;
            bubblePlot.render();
        },
        createDatatable: function () {
            if (!this.options.selectedDatatable)
                return;
            var self = this;

            // prepare data for datatable
            var values = [];
            var rowNames = [];
            for (var i = 0; i < this.model.models.length; i++) {
                var table = _.find(this.model.models[i].get('results'), function (itm) { return itm.Name == self.options.selectedDatatable });
                if (!table)
                    table = _.find(this.model.models[i].get('params'), function (itm) { return itm.Name == self.options.selectedDatatable });

                if (!table)
                    continue;
                var index = table.RowNames.indexOf(this.options.datatableRow);
                if (index == -1)
                    continue;
                var entries = [];
                for (var j = 0; j < table.Value.length; j++) {
                    entries.push(table.Value[j][index]);
                }
                values.push(entries);
                rowNames.push(this.options.datatableRow + ' of Run Number ' + (i + 1));
            }

            // render datatable
            var div = this.preparePlotDiv();
            var plot = new my.PlotView({ model: values, el: div, rownames: rowNames });
            this.plot = plot;
            plot.render();
        }
    });

    // ===================== Plots =============================

    my.PlotView = Backbone.View.extend({
        render: function () {
            this.$el.empty();
            var plotLabels = undefined;
            var labelSource = this.model.RowNames ? this.model.RowNames : this.options.rownames;
            if (labelSource) {
                plotLabels = [];
                for (var i = 0; i < labelSource.length; i++) {
                    plotLabels.push({ label: labelSource[i] });
                }
            }

            var values = this.model.Value ? this.model.Value : this.model;

            var plotValues = [];

            if (!this.options.transpose) {
                if ($.isArray(values[0])) {
                    for (var i = 0; i < values.length; i++) {
                        plotValues.push(values[i]);
                    }
                } else {
                    plotValues.push(values);
                }
            }
            else {
                if ($.isArray(values[0])) {
                    var columnCount = values[0].length;
                    var colVals = {};
                    for (var i = 0; i < columnCount; i++)
                        colVals[i] = [];

                    for (var i = 0; i < values.length; i++) {
                        for (var j = 0; j < columnCount; j++) {
                            colVals[j].push(values[i][j]);
                        }
                    }

                    for (var i = 0; i < columnCount; i++) {
                        plotValues.push(colVals[i]);
                    }
                } else {
                    plotValues.push(values);
                }
            }

            if (!this.$el.attr('id')) {
                this.$el.attr('id', my.PlotView.nextId());
            }

            if (!this.$el.css('width'))
                this.$el.css('width', '500px');

            this.plot = $.jqplot(this.$el.attr('id'), plotValues, {
                cursor: {
                    show: true,
                    zoom: true,
                    showTooltip: false
                },
                series: plotLabels,
                seriesDefaults: {
                    lineWidth: 1.5,
                    markerOptions: {
                        size: 2,
                        lineWidth: 2
                    }
                },
                legend: {
                    show: true,
                    placement: 'outsideGrid'
                },
                highlighter: {
                    show: true,
                    sizeAdjust: 7.5
                }
            });
        },
        refresh: function () {
            if (this.plot)
                this.plot.replot({ resetAxes: true });
        }
    },
  {
      plotId: 1,
      nextId: function () {
          return my.PlotView.plotId++;
      }
  });

    my.BubbleplotView = Backbone.View.extend({
        render: function () {
            this.$el.empty();

            var values = this.model && this.model.Value ? this.model.Value : this.model;

            var plotValues = [];


            if (!this.$el.attr('id')) {
                this.$el.attr('id', my.PlotView.nextId());
            }

            if (!this.$el.css('width'))
                this.$el.css('width', '500px');

            this.plot = $.jqplot(this.$el.attr('id'), [values], {
                cursor: {
                    show: true,
                    zoom: true,
                    showTooltip: false
                },
                seriesDefaults: { renderer: $.jqplot.BubbleRenderer,
                    rendererOptions: {
                        autoscaleBubbles: this.options.autoscale == true,
                        bubbleGradients: true
                    },
                    shadow: true
                }
            });
        },
        refresh: function () {
            if (this.plot)
                this.plot.replot({ resetAxes: true });
        }
    });

    my.BoxplotView = Backbone.View.extend({
        render: function () {
            this.$el.empty();
            var plotLabels = undefined;
            if (this.model && this.model.RowNames) {
                plotLabels = [];
                for (var i = 0; i < this.model.RowNames.length; i++) {
                    plotLabels.push({ label: this.model.RowNames[i] });
                }
            }

            var values = this.model && this.model.Value ? this.model.Value : this.model;
            var globalMin = Number.MAX_VALUE;
            var globalMax = Number.MIN_VALUE;

            var plotValues = [];

            for (var key in values) {
                var entry = values[key];
                if ($.isArray(entry[0])) {
                    for (var i = 0; i < entry.length; i++) {
                        var cnt = entry[i].length;
                        var mean = _.mean(entry[i]);
                        var median = _.median(entry[i]);
                        var min = _.min(entry[i]);
                        var max = _.max(entry[i]);
                        var sorted = _.sortBy(entry[i], function (num) { return num; });
                        var q1 = percentile(25, sorted);
                        var q3 = percentile(75, sorted);
                        var diff = 1.5 * (q3 - q1);

                        plotValues.push([key, min, q1, median, q3, max]);
                        //plotValues.push(["Sample " + i, percentile(15, sorted), q1, median, q3, percentile(85, sorted)]);
                        if (max > globalMax) globalMax = max;
                        if (min < globalMin) globalMin = min;
                    }
                } else {
                    var cnt = entry.length;
                    var mean = _.mean(entry);
                    var median = _.median(entry);
                    var min = _.min(entry);
                    var max = _.max(entry);
                    var sorted = _.sortBy(entry, function (num) { return num; });
                    var q1 = percentile(25, sorted);
                    var q3 = percentile(75, sorted);
                    plotValues.push([key, min, q1, median, q3, max]);
                    if (max > globalMax) globalMax = max;
                    if (min < globalMin) globalMin = min;
                }
            }



            if (!this.$el.attr('id')) {
                this.$el.attr('id', my.PlotView.nextId());
            }

            if (!this.$el.css('width'))
                this.$el.css('width', '500px');

            this.plot = $.jqplot(this.$el.attr('id'), [plotValues], {
                cursor: {
                    show: true,
                    zoom: true,
                    showTooltip: false
                },
                series: [{ renderer: $.jqplot.BoxplotRenderer, rendererOptions: {}}],
                axesDefaults: {},
                axes: {
                    yaxis: {
                        min: globalMin * 0.9,
                        max: globalMax * 1.1
                    },
                    xaxis: {
                        renderer: $.jqplot.CategoryAxisRenderer
                    }
                },
                legend: {
                    show: true,
                    placement: 'outsideGrid'
                },
                highlighter: {
                    show: true,
                    sizeAdjust: 7.5
                }
            });
        },
        refresh: function () {
            if (this.plot)
                this.plot.replot({ resetAxes: true });
        }
    });
    return my;
} (OAAS_VIEW || {}, Backbone, _, $, OAAS_MODEL));