content: /**
   *   Copyright 2012-2019 Wicked Charts (http://github.com/adessoAG/wicked-charts)
   *
   *   Licensed under the Apache License, Version 2.0 (the "License");
   *   you may not use this file except in compliance with the License.
   *   You may obtain a copy of the License at
   *        http://www.apache.org/licenses/LICENSE-2.0
   *
   *   Unless required by applicable law or agreed to in writing, software
   *   distributed under the License is distributed on an "AS IS" BASIS,
   *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *   See the License for the specific language governing permissions and
   *   limitations under the License.
   */
  package de.adesso.wickedcharts.wicket15.highcharts.features.basic;
  
  import de.adesso.wickedcharts.highcharts.jackson.JsonRenderer;
  import de.adesso.wickedcharts.highcharts.options.Options;
  import de.adesso.wickedcharts.highcharts.options.processing.Feature;
  import de.adesso.wickedcharts.highcharts.options.processing.FeatureCheckingOptionsProcessor;
  import de.adesso.wickedcharts.highcharts.options.processing.IOptionsProcessor;
  import de.adesso.wickedcharts.highcharts.options.processing.OptionsProcessorContext;
  import de.adesso.wickedcharts.highcharts.options.util.OptionsUtil;
  import de.adesso.wickedcharts.wicket15.JavaScriptResourceRegistry;
  import de.adesso.wickedcharts.wicket15.highcharts.Chart;
  import de.adesso.wickedcharts.wicket15.highcharts.JsonRendererFactory;
  import de.adesso.wickedcharts.wicket15.highcharts.features.drilldown.DrilldownProcessor;
  import de.adesso.wickedcharts.wicket15.highcharts.features.global.GlobalProcessor;
  import org.apache.wicket.Component;
  import org.apache.wicket.behavior.Behavior;
  import org.apache.wicket.markup.html.IHeaderResponse;
  
  import java.text.MessageFormat;
  
  /**
   * This behavior takes in an {@link Options} object containing the configuration
   * of a chart and calls the proper javascript to display the chart in the
   * component to which this behavior is added.
   *
   * @author Tom Hombergs (tom.hombergs@gmail.com)
   */
  public class ChartBehavior extends Behavior {
  
      private static final long serialVersionUID = 1L;
  
      private final Chart chart;
  
      private static final Feature[] SUPPORTED_FEATURES = new Feature[]{
  
              Feature.DRILLDOWN,
  
              Feature.GLOBAL,
  
      };
  
      /**
       * Constructor.
       *
       * @param container The chart container to render the chart in.
       */
      public ChartBehavior(final Chart container) {
          this.chart = container;
      }
  
      private void addTheme(final IHeaderResponse response,
                            final JsonRenderer renderer) {
          if (this.chart.getTheme() != null) {
              response.renderOnDomReadyJavaScript(MessageFormat.format(
                      "Highcharts.setOptions({0});",
                      renderer.toJson(this.chart.getTheme())));
          } else if (this.chart.getThemeUrl() != null) {
              response.renderJavaScriptReference(this.chart.getThemeUrl());
          } else if (this.chart.getThemeReference() != null) {
              response.renderJavaScriptReference(this.chart.getThemeReference());
          }
      }
  
      /**
       * Includes the javascript that calls the Highcharts library to visualize
       * the chart.
       *
       * @param response the Wicket HeaderResponse
       * @param options  the options containing the data to display
       * @param renderer the JsonRenderer responsible for rendering the options
       * @param markupId the DOM ID of the chart component.
       */
      protected void includeChartJavascript(final IHeaderResponse response,
                                            final Options options, final JsonRenderer renderer,
                                            final String markupId) {
          String chartVarname = markupId;
          String optionsVarname = markupId + "Options";
          response.renderOnDomReadyJavaScript(MessageFormat.format(
                  "var {0} = {1};var {2} = new Highcharts.Chart({0});",
                  optionsVarname, renderer.toJson(options), chartVarname));
      }
  
      private void includeJavascriptDependencies(final IHeaderResponse response,
                                                 final Options options) {
          JavaScriptResourceRegistry.getInstance().getJQueryEntry()
                  .addToHeaderResponse(response);
          JavaScriptResourceRegistry.getInstance().getHighchartsEntry()
                  .addToHeaderResponse(response);
          if (OptionsUtil.needsExportingJs(options)) {
              JavaScriptResourceRegistry.getInstance()
                      .getHighchartsExportingEntry()
                      .addToHeaderResponse(response);
          }
          if (OptionsUtil.needsHighchartsMoreJs(options)) {
              JavaScriptResourceRegistry.getInstance().getHighchartsMoreEntry()
                      .addToHeaderResponse(response);
          }
          if (OptionsUtil.needsFunnelJs(options)) {
              JavaScriptResourceRegistry.getInstance().getFunnelEntry().addToHeaderResponse(response);
          }
          if (OptionsUtil.needsHeatmapJs(options)) {
              JavaScriptResourceRegistry.getInstance().getHeatmapEntry().addToHeaderResponse(response);
          }
      }
  
      @Override
      public void renderHead(final Component component,
                             final IHeaderResponse response) {
  
          component.setOutputMarkupId(true);
          Options options = this.chart.getOptions();
          final String id = component.getMarkupId();
          OptionsUtil.getInstance().setRenderTo(options, id);
  
          JsonRenderer renderer = JsonRendererFactory.getInstance()
                  .getRenderer();
          includeJavascriptDependencies(response, options);
          addTheme(response, renderer);
  
          OptionsProcessorContext context = new OptionsProcessorContext(options);
  
          IOptionsProcessor featureProcessor = new FeatureCheckingOptionsProcessor(SUPPORTED_FEATURES);
          featureProcessor.processOptions(this.chart.getOptions(), context);
  
          DrilldownProcessor drilldownProcessor = new DrilldownProcessor(
                  component, response);
          drilldownProcessor.processOptions(options, context);
  
          GlobalProcessor globalProcessor = new GlobalProcessor(
                  response);
          globalProcessor.processOptions(options, context);
  
          includeChartJavascript(response, options, renderer, id);
      }
  
  }
  