/*
    * Copyright 2013 smartics, Kronseder & Reiner GmbH
    *
    * 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.smartics.properties.admin.resources.representation.html;
  
  import static de.smartics.properties.admin.domain.model.AppRelations.PROPERTY;
  
  import java.io.OutputStream;
  import java.net.URI;
  import java.util.List;
  
  import org.apache.commons.lang.ObjectUtils;
  
  import de.smartics.html5.jatl.HtmlResourceContext;
  import de.smartics.properties.admin.domain.model.PropertiesConfiguration;
  import de.smartics.properties.admin.resources.controller.PropertyResource;
  import de.smartics.properties.admin.resources.representation.html.share.AbstractHtmlRepresentationRenderer;
  import de.smartics.properties.admin.resources.representation.html.share.ApplicationHtmlRenderingHelper;
  import de.smartics.properties.api.config.domain.DescribedProperty;
  import de.smartics.properties.api.config.domain.ValidatedProperty;
  import de.smartics.properties.api.config.domain.key.ConfigurationKey;
  import de.smartics.resteasy.hypermedia.renderer.LinkDescriptor;
  
  /**
   * Displays the list of property keys belonging to a selected configuration in
   * an HTML page.
   */
  public final class PropertyKeysHtmlRepresentationRenderer extends
      AbstractHtmlRepresentationRenderer<PropertiesConfiguration>
  {
    // ********************************* Fields *********************************
  
    // --- constants ------------------------------------------------------------
  
    /**
     * The title to the page.
     */
    private static final String TITLE = "Property Keys";
  
    // --- members --------------------------------------------------------------
  
    /**
     * The domain object to render.
     */
    private final PropertiesConfiguration domainObject;
  
    // ****************************** Initializer *******************************
  
    // ****************************** Constructors ******************************
  
    /**
     * Default constructor.
     *
     * @param htmlContext the context information to render the representation.
     * @param domainObject the domain object to render.
     * @param entityStream the stream to write to.
     */
    public PropertyKeysHtmlRepresentationRenderer(
        final HtmlResourceContext htmlContext,
        final PropertiesConfiguration domainObject,
        final OutputStream entityStream)
    {
      super(htmlContext, entityStream);
      this.domainObject = domainObject;
    }
  
    // ****************************** Inner Classes *****************************
  
    // ********************************* Methods ********************************
  
    // --- init -----------------------------------------------------------------
  
    // --- get&set --------------------------------------------------------------
  
    @Override
    protected String getTitle()
    {
      return TITLE;
    }
  
    // --- business -------------------------------------------------------------
  
    @Override
    protected void bodyContents()
    {
      renderPageTitle(">>>");
  
     html.p()
         .text(
             "The following list shows the property keys available in the configuration "
                 + domainObject.getKey()
                 + " of the application with the attached data source.").end();
     final ApplicationHtmlRenderingHelper helper =
         new ApplicationHtmlRenderingHelper(html, pathHelper,
             domainObject.getApplication());
     helper.addApplication();
 
     renderRegistry();
   }
 
   private void renderRegistry()
   {
     html.table().classAttr("table table-striped");
 
     html.tr();
     html.th().text("#").end();
     // html.th().text("Status").end();
     html.th().text("Name").end();
     html.th().text("Value").end();
     html.th().text("Source").end();
     html.end();
 
     int counter = 0;
     for (final DescribedProperty property : domainObject.getProperties())
     {
       counter++;
       renderRow(counter, property);
     }
 
     html.end();
   }
 
   private void renderRow(final int counter, final DescribedProperty property)
   {
     final String key = property.getName();
     final URI url = createUrl(key);
     html.tr();
     html.td().text(String.valueOf(counter)).end();
 
     if (property instanceof ValidatedProperty)
     {
       // html.td().icon("icon-ok-circle").end();
       final String value =
           ObjectUtils.toString(((ValidatedProperty) property)
               .getValidatedValue());
       html.td();
       html.a().id(key).rel(PROPERTY).href(url.toString()).text(key).end();
       html.end();
       html.td().text(value).end();
     }
     else
     {
       final String value = property.getValue();
       final String label;
       final String css;
       // final String iconCss;
       if (null == value)
       {
         css = "muted";
         // iconCss = "icon-ban-circle";
         label = " (unset)";
       }
       else
       {
         css = "text-error";
         // iconCss = "icon-remove-circle";
         label =
             " = " + value + " (unresolvable)" + createConfigSource(property);
       }
 
       // html.td().icon(iconCss).end();
       html.td().a().id(key).rel(PROPERTY).href(url.toString()).text(key).end()
           .end();
       html.td().span().classAttr(css).text(label).end().end();
     }
     html.td().span().classAttr("configKey").text(createConfigSource(property))
         .end().end();
     html.end();
   }
 
   private String createConfigSource(final DescribedProperty property)
   {
     final ConfigurationKey<?> configurationKey = property.getConfigurationKey();
     final String label =
         configurationKey == null ? "default" : configurationKey.toString();
     return label;
   }
 
   private URI createUrl(final String key)
   {
     final URI url =
         htmlContext.getContext().getUriInfo().getBaseUriBuilder()
             .path(PropertyResource.class, "getAsHtml")
             .build(new Object[] { domainObject.getKey(), key }, false);
     return url;
   }
 
   @Override
   protected List<LinkDescriptor> breadcrumbLinks()
   {
     return breadcrumb.configuration(domainObject.getKey());
   }
 
   // --- object basics --------------------------------------------------------
 
 }