/**
    * This file Copyright (c) 2013-2016 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.module.blossom.dialog;
  
  import info.magnolia.config.registry.DefinitionMetadata;
  import info.magnolia.config.registry.DefinitionMetadataBuilder;
  import info.magnolia.config.registry.DefinitionProvider;
  import info.magnolia.config.registry.DefinitionRawView;
  import info.magnolia.config.registry.Registry;
  import info.magnolia.module.blossom.support.ExplicitIdDefinitionMetadataBuilder;
  import info.magnolia.ui.admincentral.dialog.action.CancelDialogActionDefinition;
  import info.magnolia.ui.admincentral.dialog.action.SaveDialogActionDefinition;
  import info.magnolia.ui.dialog.definition.ConfiguredFormDialogDefinition;
  import info.magnolia.ui.dialog.definition.DialogDefinition;
  import info.magnolia.ui.dialog.registry.DefinitionTypes;
  import info.magnolia.ui.form.definition.ConfiguredFormDefinition;
  
  import java.util.Collections;
  import java.util.List;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Provides blossom dialogs by invoking methods on the factory object.
   *
   * @since 3.0
   */
  public class BlossomDialogDefinitionProvider implements DefinitionProvider<DialogDefinition> {
  
      private final Logger logger = LoggerFactory.getLogger(getClass());
  
      private BlossomDialogDescription dialogDescription;
  
      public BlossomDialogDefinitionProvider(BlossomDialogDescription dialogDescription) {
          this.dialogDescription = dialogDescription;
      }
  
      @Override
      public DefinitionMetadata getMetadata() {
          DefinitionMetadataBuilder builder = new ExplicitIdDefinitionMetadataBuilder(dialogDescription.getId()).type(DefinitionTypes.DIALOG);
          DialogFactoryMetaData factoryMetaData = dialogDescription.getFactoryMetaData();
          if (factoryMetaData != null) {
              if (factoryMetaData.getFactoryMethod() != null) {
                  builder.location(factoryMetaData.getFactoryObject().getClass().getName() + "." + factoryMetaData.getFactoryMethod().getName());
              } else {
                  builder.location(factoryMetaData.getFactoryObject().getClass().getName());
              }
          }
          return builder.build();
      }
  
      @Override
      public DefinitionRawView getRaw() {
          return DefinitionRawView.EMPTY;
      }
  
      @Override
      public boolean isValid() {
          return true;
      }
  
      @Override
      public List<String> getErrorMessages() {
          return Collections.emptyList();
      }
  
      @Override
     public DialogDefinition get() throws Registry.InvalidDefinitionException {
 
         DialogCreationContext context = DialogCreationContextHolder.get();
         if (context == null) {
 
             ConfiguredFormDialogDefinition dialog = new ConfiguredFormDialogDefinition();
             dialog.setId(dialogDescription.getId());
             dialog.setLabel(dialogDescription.getFactoryMetaData().getLabel());
             dialog.setI18nBasename(dialogDescription.getFactoryMetaData().getI18nBasename());
             dialog.setPresenterClass(BlossomFormDialogPresenter.class);
             dialog.setForm(new ConfiguredFormDefinition());
 
             return dialog;
         }
 
         context.setId(dialogDescription.getId());
 
         DialogCreator dialogCreator = dialogDescription.getDialogCreator();
         DialogFactoryMetaData factoryMetaData = dialogDescription.getFactoryMetaData();
         try {
             dialogCreator.createDialog(factoryMetaData, context);
         } catch (Exception e) {
             if (factoryMetaData.getFactoryMethod() != null) {
                 logger.error("Failed to create dialog for method [" + factoryMetaData.getFactoryMethod() + "]", e);
                 throw new Registry.InvalidDefinitionException(dialogDescription.getId());
             } else {
                 logger.error("Failed to create dialog for class [" + factoryMetaData.getFactoryObject().getClass() + "]", e);
                 throw new Registry.InvalidDefinitionException(dialogDescription.getId());
             }
         }
 
         ConfiguredFormDialogDefinition dialog = context.getDialog();
 
         if (dialog.getActions().isEmpty()) {
 
             SaveDialogActionDefinition callbackAction = new SaveDialogActionDefinition();
             callbackAction.setName("commit");
             callbackAction.setLabel("save");
             dialog.getActions().put(callbackAction.getName(), callbackAction);
 
             CancelDialogActionDefinition cancelAction = new CancelDialogActionDefinition();
             cancelAction.setName("cancel");
             cancelAction.setLabel("cancel");
             dialog.getActions().put(cancelAction.getName(), cancelAction);
         }
 
         return dialog;
     }
 }