/**
    * This file Copyright (c) 2016-2018 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.ui.framework.tools;
  
  import info.magnolia.ui.api.action.ActionDefinition;
  import info.magnolia.ui.api.action.ActionExecutionException;
  import info.magnolia.ui.api.view.View;
  import info.magnolia.ui.dialog.actionarea.ActionListener;
  import info.magnolia.ui.dialog.formdialog.FormBuilder;
  import info.magnolia.ui.form.EditorValidator;
  import info.magnolia.ui.form.definition.FormDefinition;
  import info.magnolia.ui.vaadin.form.Form;
  import info.magnolia.ui.vaadin.form.FormViewReduced;
  
  import java.util.Map;
  
  import javax.inject.Inject;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.vaadin.v7.data.Item;
  import com.vaadin.v7.data.util.PropertysetItem;
  
  /**
   * A {@link FormToolPresenter} consumes a {@link FormToolDefinition} and presents a generic configured form
   * in a {@link FormToolView}.
   */
  public class FormToolPresenter implements ToolPresenter<FormToolDefinition, FormToolView>, ActionListener, EditorValidator {
  
      private static final Logger log = LoggerFactory.getLogger(FormToolPresenter.class);
  
      private final FormToolView view;
      private final FormBuilder formBuilder;
      private final FormToolActionExecutor actionExecutor;
      private Item item;
      private FormViewReduced formView;
  
      @Inject
      public FormToolPresenter(FormToolView view, FormBuilder formBuilder, FormToolActionExecutor actionExecutor) {
          this.view = view;
          this.formBuilder = formBuilder;
          this.actionExecutor = actionExecutor;
      }
  
      @Override
      public FormToolView start(FormToolDefinition definition) {
          item = getItem();
  
          formView = new Form();
          FormDefinition form = definition.getForm();
          if (form != null) {
              formBuilder.buildReducedForm(form, formView, item, null);
              view.setForm(formView);
          } else {
              view.asVaadinComponent().addStyleName("no-form");
          }
  
          actionExecutor.setFormToolDefinition(definition);
          buildActions(definition);
  
          return view;
      }
  
      protected Item getItem() {
          return new PropertysetItem();
      }
  
     protected View getView() {
         return view;
     }
 
     protected void buildActions(FormToolDefinition definition) {
         Map<String, ActionDefinition> actions = definition.getActions();
         if (actions != null && !actions.isEmpty()) {
             for (final ActionDefinition action : actions.values()) {
                 view.addAction(action.getName(), action.getLabel(), this);
             }
         }
     }
 
     @Override
     public void onActionFired(String actionName, Object... actionContextParams) {
         try {
             actionExecutor.execute(actionName, view, this, item);
         } catch (ActionExecutionException e) {
             log.error("Cannot execute action " + actionName, e);
         }
     }
 
     @Override
     public void showValidation(boolean visible) {
         formView.showValidation(visible);
     }
 
     @Override
     public boolean isValid() {
         return formView.isValid();
     }
 }