import Check from '../../Core/Check.js';
import defaultValue from '../../Core/defaultValue.js';
import defined from '../../Core/defined.js';
import defineProperties from '../../Core/defineProperties.js';
import destroyObject from '../../Core/destroyObject.js';
import knockout from '../../ThirdParty/knockout.js';
import getElement from '../getElement.js';
import InspectorShared from '../InspectorShared.js';
import Cesium3DTilesInspectorViewModel from './Cesium3DTilesInspectorViewModel.js';

    /**
     * Inspector widget to aid in debugging 3D Tiles
     *
     * @alias Cesium3DTilesInspector
     * @constructor
     *
     * @param {Element|String} container The DOM element or ID that will contain the widget.
     * @param {Scene} scene the Scene instance to use.
     */
    function Cesium3DTilesInspector(container, scene) {
        //>>includeStart('debug', pragmas.debug);
        Check.defined('container', container);
        Check.typeOf.object('scene', scene);
        //>>includeEnd('debug');

        container = getElement(container);
        var element = document.createElement('div');
        var performanceContainer = document.createElement('div');
        performanceContainer.setAttribute('data-bind', 'visible: performance');
        var viewModel = new Cesium3DTilesInspectorViewModel(scene, performanceContainer);

        this._viewModel = viewModel;
        this._container = container;
        this._element = element;

        var text = document.createElement('div');
        text.textContent = '3D Tiles Inspector';
        text.className = 'cesium-cesiumInspector-button';
        text.setAttribute('data-bind', 'click: toggleInspector');
        element.appendChild(text);
        element.className = 'cesium-cesiumInspector cesium-3DTilesInspector';
        element.setAttribute('data-bind', 'css: { "cesium-cesiumInspector-visible" : inspectorVisible, "cesium-cesiumInspector-hidden" : !inspectorVisible}');
        container.appendChild(element);

        var panel = document.createElement('div');
        this._panel = panel;
        panel.className = 'cesium-cesiumInspector-dropDown';
        element.appendChild(panel);

        var createSection = InspectorShared.createSection;
        var createCheckbox = InspectorShared.createCheckbox;

        var tilesetPanelContents = createSection(panel, 'Tileset', 'tilesetVisible', 'toggleTileset');
        var displayPanelContents = createSection(panel, 'Display', 'displayVisible', 'toggleDisplay');
        var updatePanelContents = createSection(panel, 'Update', 'updateVisible', 'toggleUpdate');
        var loggingPanelContents = createSection(panel, 'Logging', 'loggingVisible', 'toggleLogging');
        var tileDebugLabelsPanelContents = createSection(panel, 'Tile Debug Labels', 'tileDebugLabelsVisible', 'toggleTileDebugLabels');
        var stylePanelContents = createSection(panel, 'Style', 'styleVisible', 'toggleStyle');
        var optimizationPanelContents = createSection(panel, 'Optimization', 'optimizationVisible', 'toggleOptimization');

        var properties = document.createElement('div');
        properties.className = 'field-group';
        var propertiesLabel = document.createElement('label');
        propertiesLabel.className = 'field-label';
        propertiesLabel.appendChild(document.createTextNode('Properties: '));
        var propertiesField = document.createElement('div');
        propertiesField.setAttribute('data-bind', 'text: properties');
        properties.appendChild(propertiesLabel);
        properties.appendChild(propertiesField);
        tilesetPanelContents.appendChild(properties);
        tilesetPanelContents.appendChild(makeButton('togglePickTileset', 'Pick Tileset', 'pickActive'));
        tilesetPanelContents.appendChild(makeButton('trimTilesCache', 'Trim Tiles Cache'));
        tilesetPanelContents.appendChild(createCheckbox('Enable Picking', 'picking'));

        displayPanelContents.appendChild(createCheckbox('Colorize', 'colorize'));
        displayPanelContents.appendChild(createCheckbox('Wireframe', 'wireframe'));
        displayPanelContents.appendChild(createCheckbox('Bounding Volumes', 'showBoundingVolumes'));
        displayPanelContents.appendChild(createCheckbox('Content Volumes', 'showContentBoundingVolumes'));
        displayPanelContents.appendChild(createCheckbox('Request Volumes', 'showRequestVolumes'));

        displayPanelContents.appendChild(createCheckbox('Point Cloud Shading', 'pointCloudShading'));
        var pointCloudShadingContainer = document.createElement('div');
        pointCloudShadingContainer.setAttribute('data-bind', 'visible: pointCloudShading');
        pointCloudShadingContainer.appendChild(makeRangeInput('geometricErrorScale', 0, 2, 0.01, 'Geometric Error Scale'));
        pointCloudShadingContainer.appendChild(makeRangeInput('maximumAttenuation', 0, 32, 1, 'Maximum Attenuation'));
        pointCloudShadingContainer.appendChild(makeRangeInput('baseResolution', 0, 1, 0.01, 'Base Resolution'));
        pointCloudShadingContainer.appendChild(createCheckbox('Eye Dome Lighting (EDL)', 'eyeDomeLighting'));
        displayPanelContents.appendChild(pointCloudShadingContainer);

        var edlContainer = document.createElement('div');
        edlContainer.setAttribute('data-bind', 'visible: eyeDomeLighting');
        edlContainer.appendChild(makeRangeInput('eyeDomeLightingStrength', 0, 2.0, 0.1, 'EDL Strength'));
        edlContainer.appendChild(makeRangeInput('eyeDomeLightingRadius', 0, 4.0, 0.1, 'EDL Radius'));
        pointCloudShadingContainer.appendChild(edlContainer);

        updatePanelContents.appendChild(createCheckbox('Freeze Frame', 'freezeFrame'));
        updatePanelContents.appendChild(createCheckbox('Dynamic Screen Space Error', 'dynamicScreenSpaceError'));
        var sseContainer = document.createElement('div');
        sseContainer.appendChild(makeRangeInput('maximumScreenSpaceError', 0, 128, 1, 'Maximum Screen Space Error'));
        updatePanelContents.appendChild(sseContainer);
        var dynamicScreenSpaceErrorContainer = document.createElement('div');
        dynamicScreenSpaceErrorContainer.setAttribute('data-bind', 'visible: dynamicScreenSpaceError');
        dynamicScreenSpaceErrorContainer.appendChild(makeRangeInput('dynamicScreenSpaceErrorDensitySliderValue', 0, 1, 0.005, 'Screen Space Error Density', 'dynamicScreenSpaceErrorDensity'));
        dynamicScreenSpaceErrorContainer.appendChild(makeRangeInput('dynamicScreenSpaceErrorFactor', 1, 10, 0.1, 'Screen Space Error Factor'));
        updatePanelContents.appendChild(dynamicScreenSpaceErrorContainer);

        loggingPanelContents.appendChild(createCheckbox('Performance', 'performance'));
        loggingPanelContents.appendChild(performanceContainer);
        loggingPanelContents.appendChild(createCheckbox('Statistics', 'showStatistics'));
        var statistics = document.createElement('div');
        statistics.className = 'cesium-3dTilesInspector-statistics';
        statistics.setAttribute('data-bind', 'html: statisticsText, visible: showStatistics');
        loggingPanelContents.appendChild(statistics);
        loggingPanelContents.appendChild(createCheckbox('Pick Statistics', 'showPickStatistics'));
        var pickStatistics = document.createElement('div');
        pickStatistics.className = 'cesium-3dTilesInspector-statistics';
        pickStatistics.setAttribute('data-bind', 'html: pickStatisticsText, visible: showPickStatistics');
        loggingPanelContents.appendChild(pickStatistics);

        var stylePanelEditor = document.createElement('div');
        stylePanelContents.appendChild(stylePanelEditor);
        stylePanelEditor.appendChild(document.createTextNode('Color Blend Mode: '));
        var blendDropdown = document.createElement('select');
        blendDropdown.setAttribute('data-bind', 'options: colorBlendModes, ' +
                                                'optionsText: "text", ' +
                                                'optionsValue: "value", ' +
                                                'value: colorBlendMode');
        stylePanelEditor.appendChild(blendDropdown);
        var styleEditor = document.createElement('textarea');
        styleEditor.setAttribute('data-bind', 'textInput: styleString, event: { keydown: styleEditorKeyPress }');
        stylePanelEditor.className = 'cesium-cesiumInspector-styleEditor';
        stylePanelEditor.appendChild(styleEditor);
        var closeStylesBtn = makeButton('compileStyle', 'Compile (Ctrl+Enter)');
        stylePanelEditor.appendChild(closeStylesBtn);
        var errorBox = document.createElement('div');
        errorBox.className = 'cesium-cesiumInspector-error';
        errorBox.setAttribute('data-bind', 'text: editorError');
        stylePanelEditor.appendChild(errorBox);

        tileDebugLabelsPanelContents.appendChild(createCheckbox('Show Picked Only', 'showOnlyPickedTileDebugLabel'));
        tileDebugLabelsPanelContents.appendChild(createCheckbox('Geometric Error', 'showGeometricError'));
        tileDebugLabelsPanelContents.appendChild(createCheckbox('Rendering Statistics', 'showRenderingStatistics'));
        tileDebugLabelsPanelContents.appendChild(createCheckbox('Memory Usage (MB)', 'showMemoryUsage'));
        tileDebugLabelsPanelContents.appendChild(createCheckbox('Url', 'showUrl'));

        optimizationPanelContents.appendChild(createCheckbox('Skip Tile LODs', 'skipLevelOfDetail'));
        var skipScreenSpaceErrorFactorContainer = document.createElement('div');
        skipScreenSpaceErrorFactorContainer.appendChild(makeRangeInput('skipScreenSpaceErrorFactor', 1, 50, 1, 'Skip SSE Factor'));
        optimizationPanelContents.appendChild(skipScreenSpaceErrorFactorContainer);
        var baseScreenSpaceError = document.createElement('div');
        baseScreenSpaceError.appendChild(makeRangeInput('baseScreenSpaceError', 0, 4096, 1, 'SSE before skipping LOD'));
        optimizationPanelContents.appendChild(baseScreenSpaceError);
        var skipLevelsContainer = document.createElement('div');
        skipLevelsContainer.appendChild(makeRangeInput('skipLevels', 0, 10, 1, 'Min. levels to skip'));
        optimizationPanelContents.appendChild(skipLevelsContainer);
        optimizationPanelContents.appendChild(createCheckbox('Load only tiles that meet the max SSE.', 'immediatelyLoadDesiredLevelOfDetail'));
        optimizationPanelContents.appendChild(createCheckbox('Load siblings of visible tiles', 'loadSiblings'));

        knockout.applyBindings(viewModel, element);
    }

    defineProperties(Cesium3DTilesInspector.prototype, {
        /**
         * Gets the parent container.
         * @memberof Cesium3DTilesInspector.prototype
         *
         * @type {Element}
         */
        container : {
            get : function() {
                return this._container;
            }
        },

        /**
         * Gets the view model.
         * @memberof Cesium3DTilesInspector.prototype
         *
         * @type {Cesium3DTilesInspectorViewModel}
         */
        viewModel : {
            get : function() {
                return this._viewModel;
            }
        }
    });

    /**
     * @returns {Boolean} true if the object has been destroyed, false otherwise.
     */
    Cesium3DTilesInspector.prototype.isDestroyed = function() {
        return false;
    };

    /**
     * Destroys the widget.  Should be called if permanently
     * removing the widget from layout.
     */
    Cesium3DTilesInspector.prototype.destroy = function() {
        knockout.cleanNode(this._element);
        this._container.removeChild(this._element);
        this.viewModel.destroy();

        return destroyObject(this);
    };

    function makeRangeInput(property, min, max, step, text, displayProperty) {
        displayProperty = defaultValue(displayProperty, property);
        var input = document.createElement('input');
        input.setAttribute('data-bind', 'value: ' + displayProperty);
        input.type = 'number';

        var slider = document.createElement('input');
        slider.type = 'range';
        slider.min = min;
        slider.max = max;
        slider.step = step;
        slider.setAttribute('data-bind', 'valueUpdate: "input", value: ' + property);

        var wrapper = document.createElement('div');
        wrapper.appendChild(slider);

        var container = document.createElement('div');
        container.className = 'cesium-cesiumInspector-slider';
        container.appendChild(document.createTextNode(text));
        container.appendChild(input);
        container.appendChild(wrapper);

        return container;
    }

    function makeButton(action, text, active) {
        var button = document.createElement('button');
        button.type = 'button';
        button.textContent = text;
        button.className = 'cesium-cesiumInspector-pickButton';
        var binding = 'click: ' + action;
        if (defined(active)) {
            binding += ', css: {"cesium-cesiumInspector-pickButtonHighlight" : ' + active + '}';
        }
        button.setAttribute('data-bind', binding);

        return button;
    }
export default Cesium3DTilesInspector;