/*
 * Copyright (C) 2003-2007 eXo Platform SAS.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see<http://www.gnu.org/licenses/>.
 */
package org.exoplatform.ecm.webui.component.admin.metadata;

import org.exoplatform.ecm.resolver.JCRResourceResolver;
import org.exoplatform.ecm.webui.component.admin.UIECMAdminPortlet;
import org.exoplatform.ecm.webui.form.UIFormInputSetWithAction;
import org.exoplatform.ecm.webui.selector.UISelectable;
import org.exoplatform.groovyscript.text.TemplateService;
import org.exoplatform.services.cms.metadata.MetadataService;
import org.exoplatform.webui.application.WebuiRequestContext;
import org.exoplatform.webui.config.annotation.ComponentConfig;
import org.exoplatform.webui.config.annotation.EventConfig;
import org.exoplatform.webui.core.UIComponent;
import org.exoplatform.webui.core.lifecycle.UIFormLifecycle;
import org.exoplatform.webui.event.Event;
import org.exoplatform.webui.event.EventListener;
import org.exoplatform.webui.event.Event.Phase;
import org.exoplatform.webui.form.UIFormInputSet;
import org.exoplatform.webui.form.UIFormStringInput;
import org.exoplatform.webui.form.UIFormTabPane;
import org.exoplatform.webui.form.UIFormTextAreaInput;
import org.exoplatform.webui.form.validator.MandatoryValidator;

/**
 * Created by The eXo Platform SARL
 * Author : Dang Van Minh
 *          minh.dang@exoplatform.com
 * Sep 19, 2006
 * 5:31:04 PM 
 */
@ComponentConfig(
    lifecycle = UIFormLifecycle.class,
    template =  "system:/groovy/webui/form/UIFormTabPane.gtmpl",
    events = {
      @EventConfig(listeners = UIMetadataForm.SaveActionListener.class),
      @EventConfig(listeners = UIMetadataForm.CancelActionListener.class, phase = Phase.DECODE),
      @EventConfig(listeners = UIMetadataForm.AddPermissionActionListener.class, phase = Phase.DECODE),
      @EventConfig(listeners = UIMetadataForm.SelectTabActionListener.class, phase = Phase.DECODE)
    }
)

public class UIMetadataForm extends UIFormTabPane implements UISelectable {

  final static public String METADATA_PATH = "metadataPath" ;
  final static public String MAPPING = "mapping" ;
  final static public String METADATA_MAPPING = "metadataMapping" ;
  final static public String NT_UNSTRUCTURED = "nt:unstructured" ;
  final static public String DIALOG_TEMPLATE = "dialogTemplate" ;
  final static public String VIEW_TEMPLATE = "viewTemplate" ;
  final static public String METADATA_NAME = "metadataName" ;
  final static public String VIEW_PERMISSION = "viewPermission" ;
  final static public String METADATA_TAB = "metadataTypeTab" ;
  final static public String DIALOG_TAB = "dialogTab" ;
  final static public String VIEW_TAB = "viewTab" ;
  
  private boolean isAddNew_ = false ;
  private String metadataName_ ;
  private String repository_ ;
  private String workspaceName_ ;

  public UIMetadataForm() throws Exception {
    super("UIMetadataForm") ;
    UIFormInputSetWithAction uiMetadataType = new UIFormInputSetWithAction(METADATA_TAB) ;
    uiMetadataType.addUIFormInput(new UIFormStringInput(METADATA_NAME,METADATA_NAME, null)) ;
    uiMetadataType.addUIFormInput(new UIFormStringInput(VIEW_PERMISSION, VIEW_PERMISSION, null).
                                  addValidator(MandatoryValidator.class).setEditable(false)) ;
    uiMetadataType.setActionInfo(VIEW_PERMISSION, new String[] {"AddPermission"}) ;
    addUIComponentInput(uiMetadataType) ;
    setSelectedTab(uiMetadataType.getId()) ;
    UIFormInputSet uiDialogTab = new UIFormInputSet(DIALOG_TAB) ;
    uiDialogTab.addUIFormInput(new UIFormTextAreaInput(DIALOG_TEMPLATE, DIALOG_TEMPLATE, null)) ;
    addUIComponentInput(uiDialogTab) ;
    UIFormInputSet uiViewTab = new UIFormInputSet(VIEW_TAB) ;
    uiViewTab.addUIFormInput(new UIFormTextAreaInput(VIEW_TEMPLATE, VIEW_TEMPLATE, null)) ;
    addUIComponentInput(uiViewTab) ;
    setActions(new String[] {"Save", "Cancel"}) ;
  }

  public void doSelect(String selectField, Object value) {
    getUIStringInput(VIEW_PERMISSION).setValue(value.toString()) ;
    UIMetadataManager uiManager = getAncestorOfType(UIMetadataManager.class) ;
    uiManager.removeChildById(UIMetadataManager.PERMISSION_POPUP) ;
  }
  
  public void update(String metadata)throws Exception{
    metadataName_ = metadata ;
    MetadataService metadataService = getApplicationComponent(MetadataService.class) ;
    repository_ = getAncestorOfType(UIECMAdminPortlet.class).getPreferenceRepository() ;
    workspaceName_ = getAncestorOfType(UIECMAdminPortlet.class).getPreferenceWorkspace() ;
    getUIStringInput(METADATA_NAME).setValue(metadata) ;
    String dialogTemplate = metadataService.getMetadataTemplate(metadata, true, repository_) ;
    String viewTemplate = metadataService.getMetadataTemplate(metadata, false, repository_) ;
    String role = metadataService.getMetadataRoles(metadata, true, repository_) ;
    getUIStringInput(METADATA_NAME).setEditable(false) ;
    getUIStringInput(VIEW_PERMISSION).setValue(role) ;
    getUIFormTextAreaInput(DIALOG_TEMPLATE).setValue(dialogTemplate) ;
    getUIFormTextAreaInput(VIEW_TEMPLATE).setValue(viewTemplate) ;
  }
  
  static public class SaveActionListener extends EventListener<UIMetadataForm> {
    public void execute(Event<UIMetadataForm> event) throws Exception {
      UIMetadataForm uiForm = event.getSource();      
      UIMetadataManager uiMetaManager = uiForm.getAncestorOfType(UIMetadataManager.class) ;
      MetadataService metadataService = uiForm.getApplicationComponent(MetadataService.class) ;
      String roles = uiForm.getUIStringInput(VIEW_PERMISSION).getValue() ;
      String dialogTemplate = uiForm.getUIFormTextAreaInput(DIALOG_TEMPLATE).getValue() ;
      if(dialogTemplate == null) dialogTemplate = "" ;
      String viewTemplate = uiForm.getUIFormTextAreaInput(VIEW_TEMPLATE).getValue() ;
      if(viewTemplate == null) viewTemplate = "" ;
      if(!metadataService.hasMetadata(uiForm.metadataName_, uiForm.repository_)) uiForm.isAddNew_ = true ;
      else uiForm.isAddNew_ = false ;
      JCRResourceResolver resourceResolver = 
        new JCRResourceResolver(uiForm.repository_, uiForm.workspaceName_, "exo:templateFile") ;
      TemplateService templateService = uiForm.getApplicationComponent(TemplateService.class) ;
      String path = metadataService.addMetadata(uiForm.metadataName_, true, roles, dialogTemplate, uiForm.isAddNew_, uiForm.repository_) ;
      if(path != null) templateService.invalidateTemplate(path, resourceResolver) ;
      path = metadataService.addMetadata(uiForm.metadataName_, false, roles, viewTemplate, uiForm.isAddNew_, uiForm.repository_) ;
      if(path != null) templateService.invalidateTemplate(path, resourceResolver) ;
      uiForm.reset() ;
      uiMetaManager.getChild(UIMetadataList.class).updateGrid() ;
      uiMetaManager.removeChildById(UIMetadataManager.METADATA_POPUP) ;
      event.getRequestContext().addUIComponentToUpdateByAjax(uiMetaManager) ;
    }
  }
  
  static public class AddPermissionActionListener extends EventListener<UIMetadataForm> {
    public void execute(Event<UIMetadataForm> event) throws Exception {
      UIMetadataForm uiView = event.getSource() ;
      UIMetadataManager uiManager = uiView.getAncestorOfType(UIMetadataManager.class) ;
      String membership = uiView.getUIStringInput(VIEW_PERMISSION).getValue() ;
      uiManager.initPopupPermission(membership) ;
      event.getRequestContext().addUIComponentToUpdateByAjax(uiManager) ;
    }
  }
  
  static public class CancelActionListener extends EventListener<UIMetadataForm> {
    public void execute(Event<UIMetadataForm> event) throws Exception {
      UIMetadataForm uiView = event.getSource() ;
      UIMetadataManager uiMetaManager = uiView.getAncestorOfType(UIMetadataManager.class) ;
      uiMetaManager.removeChildById(UIMetadataManager.METADATA_POPUP) ;
      event.getRequestContext().addUIComponentToUpdateByAjax(uiMetaManager) ;
    }
  }
  
  static public class SelectTabActionListener extends EventListener<UIMetadataForm> {
     public void execute(Event<UIMetadataForm> event) throws Exception {
       UIMetadataForm uiView = event.getSource() ;
       UIMetadataManager uiMetaManager = uiView.getAncestorOfType(UIMetadataManager.class) ;
       event.getRequestContext().addUIComponentToUpdateByAjax(uiMetaManager) ;
     }
  }
}