/*
 * 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.explorer.popup.actions;

import org.exoplatform.commons.utils.HTMLSanitizer;
import org.exoplatform.ecm.webui.component.explorer.*;
import org.exoplatform.services.cms.comments.CommentsService;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import org.exoplatform.services.organization.*;
import org.exoplatform.services.resources.ResourceBundleService;
import org.exoplatform.services.wcm.core.NodeLocation;
import org.exoplatform.services.wcm.utils.WCMCoreUtils;
import org.exoplatform.web.application.ApplicationMessage;
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.UIPopupComponent;
import org.exoplatform.webui.core.UIPopupContainer;
import org.exoplatform.webui.core.UIPopupWindow;
import org.exoplatform.webui.core.lifecycle.UIFormLifecycle;
import org.exoplatform.webui.event.Event;
import org.exoplatform.webui.event.Event.Phase;
import org.exoplatform.webui.event.EventListener;
import org.exoplatform.webui.exception.MessageException;
import org.exoplatform.webui.form.UIForm;
import org.exoplatform.webui.form.UIFormStringInput;
import org.exoplatform.webui.form.UIFormTextAreaInput;
import org.exoplatform.webui.form.validator.EmailAddressValidator;

import javax.jcr.Node;
import java.util.Locale;
import java.util.ResourceBundle;

/**
 * Created by The eXo Platform SARL Author : Tran The Trong trongtt@gmail.com
 * Jan 30, 2007
 */

@ComponentConfig(lifecycle = UIFormLifecycle.class, template = "app:/groovy/webui/component/explorer/popup/action/UICommentForm.gtmpl", events = {
    @EventConfig(listeners = UICommentForm.SaveActionListener.class),
    @EventConfig(listeners = UICommentForm.CancelActionListener.class, phase = Phase.DECODE) })
public class UICommentForm extends UIForm implements UIPopupComponent {

  final public static String FIELD_EMAIL   = "email";

  final public static String FIELD_WEBSITE = "website";

  final public static String FIELD_COMMENT = "comment";

  private static final Log   LOG           = ExoLogger.getLogger(UICommentForm.class.getName());

  private boolean            edit;

  private String             nodeCommentPath;

  private String             userName;
  private NodeLocation document_;

  public UICommentForm() throws Exception {

  }

  public boolean isEdit() {
    return edit;
  }

  public void setEdit(boolean edit) {
    this.edit = edit;
  }

  public String getNodeCommentPath() {
    return nodeCommentPath;
  }

  public void setNodeCommentPath(String nodeCommentPath) {
    this.nodeCommentPath = nodeCommentPath;
  }

  public String getUserName() {
    return userName;
  }

  private void prepareFields() throws Exception {
    WebuiRequestContext requestContext = WebuiRequestContext.getCurrentInstance();
    userName = requestContext.getRemoteUser();
    if (userName == null || userName.length() == 0) {
      addUIFormInput(new UIFormStringInput(FIELD_EMAIL, FIELD_EMAIL, null).addValidator(EmailAddressValidator.class));
      addUIFormInput(new UIFormStringInput(FIELD_WEBSITE, FIELD_WEBSITE, null));
    }
    UIFormTextAreaInput commentField = new UIFormTextAreaInput(FIELD_COMMENT, FIELD_COMMENT, "");
    //commentField.addValidator(FckMandatoryValidator.class);
    addUIFormInput(commentField);
    Locale locale = WebuiRequestContext.getCurrentInstance().getLocale();
    ResourceBundleService resourceBundleService = WCMCoreUtils.getService(ResourceBundleService.class);
    ResourceBundle resourceBundle = resourceBundleService.getResourceBundle("locale.ecm.dialogs", locale);
    String placeholder = resourceBundle.getString("UICommentForm.label.placeholder");
    requestContext.getJavascriptManager().require("SHARED/uiCommentForm", "commentForm")
    .addScripts("eXo.ecm.CommentForm.init('" + placeholder.replace("'", "\\'") + "');");
    if (isEdit()) {
      Node comment = getAncestorOfType(UIJCRExplorer.class).getNodeByPath(nodeCommentPath,
                                                                          NodeLocation.getNodeByLocation(document_).getSession());
      if (comment.hasProperty("exo:commentContent")) {
        getChild(UIFormTextAreaInput.class).setValue(comment.getProperty("exo:commentContent").getString());
      }
    }
  }

  public void activate() {
    try {
      document_ = NodeLocation.getNodeLocationByNode(getAncestorOfType(UIJCRExplorer.class).getCurrentNode());
      prepareFields();
    } catch (Exception e) {
      if (LOG.isErrorEnabled()) {
        LOG.error("Unexpected error!", e.getMessage());
      }
    }
  }

  public void deActivate() {
    document_ = null;
  }

  public Node getDocument() {
    return NodeLocation.getNodeByLocation(document_);
  }

  public void setDocument(Node doc) {
    document_ = NodeLocation.getNodeLocationByNode(doc);
  }

  /**
   * Overrides method processRender of UIForm, loads javascript module
   * wcm-webui-extension
   */
  @Override
  public void processRender(WebuiRequestContext context) throws Exception {
    context.getJavascriptManager().loadScriptResource("wcm-webui-extension");
    super.processRender(context);
  }

  public static class CancelActionListener extends EventListener<UICommentForm> {
    public void execute(Event<UICommentForm> event) throws Exception {
      event.getSource().getAncestorOfType(UIPopupContainer.class).cancelPopupAction();
    }
  }

  public static class SaveActionListener extends EventListener<UICommentForm> {
    public void execute(Event<UICommentForm> event) throws Exception {
      UICommentForm uiForm = event.getSource();
      UIJCRExplorer uiExplorer = uiForm.getAncestorOfType(UIJCRExplorer.class);
      String comment = uiForm.getChild(UIFormTextAreaInput.class).getValue();
      comment = HTMLSanitizer.sanitize(comment);
      CommentsService commentsService = uiForm.getApplicationComponent(CommentsService.class);
      if (comment == null || comment.trim().length() == 0) {
        event.getSource().getAncestorOfType(UIPopupContainer.class).cancelPopupAction();
        throw new MessageException(new ApplicationMessage("UICommentForm.msg.content-null", null, ApplicationMessage.WARNING));
      }
      if (uiForm.isEdit()) {
        try {
          Node commentNode = uiExplorer.getNodeByPath(uiForm.getNodeCommentPath(),
                                                      NodeLocation.getNodeByLocation(uiForm.document_).getSession());
          commentsService.updateComment(commentNode, comment);
        } catch (Exception e) {
          if (LOG.isWarnEnabled()) {
            LOG.warn(e.getMessage());
          }
        }
      } else {
        String userName = event.getRequestContext().getRemoteUser();
        String website = null;
        String email = null;
        if (userName == null || userName.length() == 0) {
          userName = "anonymous";
          website = uiForm.getUIStringInput(FIELD_WEBSITE).getValue();
          email = uiForm.getUIStringInput(FIELD_EMAIL).getValue();
        } else {
          OrganizationService organizationService = WCMCoreUtils.getService(OrganizationService.class);
          UserProfileHandler profileHandler = organizationService.getUserProfileHandler();
          UserHandler userHandler = organizationService.getUserHandler();
          User user = userHandler.findUserByName(userName);
          UserProfile userProfile = profileHandler.findUserProfileByName(userName);
          if (userProfile != null)
            website = userProfile.getUserInfoMap().get("user.business-info.online.uri");
          else
            website = "";
          email = user.getEmail();
        }

        try {
          String language = uiExplorer.getChild(UIWorkingArea.class)
                                      .getChild(UIDocumentWorkspace.class)
                                      .getChild(UIDocumentContainer.class)
                                      .getChild(UIDocumentInfo.class)
                                      .getLanguage();
          commentsService.addComment(NodeLocation.getNodeByLocation(uiForm.document_),
                                     userName,
                                     email,
                                     website,
                                     comment,
                                     language);
        } catch (Exception e) {
          if (LOG.isErrorEnabled()) {
            LOG.error(e);
          }
        }
      }
      UIPopupWindow uiPopup = uiExplorer.getChildById("ViewSearch");
      if (uiPopup != null) {
        uiPopup.setShowMask(true);
        event.getRequestContext().addUIComponentToUpdateByAjax(uiPopup);
      }
      uiExplorer.updateAjax(event);
    }
  }
}
