/*
 * The contents of this file are subject to the Mozilla Public License Version 1.1
 * (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.mozilla.org/MPL/>.
 * 
 * Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
 * WARRANTY OF ANY KIND, either express or implied. See the License for the specific
 * language governing rights and limitations under the License.
 * 
 * The Original Code is the Venice Web Communities System.
 * 
 * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
 * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
 * Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
 * 
 * Contributor(s): 
 */
package com.silverwrist.venice.servlets.format;

import java.io.IOException;
import java.io.Writer;
import javax.servlet.ServletRequest;
import com.silverwrist.util.StringUtil;
import com.silverwrist.venice.core.*;

public class Invitation implements JSPRender
{
  /*--------------------------------------------------------------------------------
   * Static data members
   *--------------------------------------------------------------------------------
   */

  // Attribute name for request attribute
  protected static final String ATTR_NAME = "com.silverwrist.venice.content.Invitation";

  /*--------------------------------------------------------------------------------
   * Attributes
   *--------------------------------------------------------------------------------
   */

  private CommunityContext comm;        // the community context
  private ConferenceContext conf;       // the conference context
  private TopicContext topic;           // the topic context

  /*--------------------------------------------------------------------------------
   * Constructor
   *--------------------------------------------------------------------------------
   */

  public Invitation(CommunityContext comm, ConferenceContext conf, TopicContext topic)
  {
    this.comm = comm;
    this.conf = conf;
    this.topic = topic;

  } // end constructor

  /*--------------------------------------------------------------------------------
   * External static functions
   *--------------------------------------------------------------------------------
   */

  public static Invitation retrieve(ServletRequest request)
  {
    return (Invitation)(request.getAttribute(ATTR_NAME));

  } // end retrieve

  /*--------------------------------------------------------------------------------
   * Implementations from interface VeniceContent
   *--------------------------------------------------------------------------------
   */

  public String getPageTitle(RenderData rdat)
  {
    return "Send Invitation";

  } // end getPageTitle

  public String getPageQID()
  {
    String rc = "sigops?cmd=I&sig=" + comm.getCommunityID();
    if (conf!=null)
    { // add conference and topic parameters, as needed
      rc += ("&conf=" + conf.getConfID());
      if (topic!=null)
	rc += ("&top=" + topic.getTopicNumber());

    } // end if

    return rc;

  } // end getPageQID

  /*--------------------------------------------------------------------------------
   * Implementations from interface JSPRender
   *--------------------------------------------------------------------------------
   */

  public void store(ServletRequest request)
  {
    request.setAttribute(ATTR_NAME,this);

  } // end store

  public String getTargetJSPName()
  {
    return "invitation.jsp";

  } // end getTargetJSPName

  /*--------------------------------------------------------------------------------
   * External operations
   *--------------------------------------------------------------------------------
   */

  public final void writeHeader(Writer out, RenderData rdat) throws IOException
  {
    if (topic!=null)
      rdat.writeContentHeader(out,"Send Topic Invitation:",
			      topic.getName() + " (in " + conf.getName() + ", in " + comm.getName() + ")");
    else if (conf!=null)
      rdat.writeContentHeader(out,"Send Conference Invitation:",
			      conf.getName() + " (in " + comm.getName() + ")");
    else
      rdat.writeContentHeader(out,"Send Community Invitation:",comm.getName());

  } // end writeHeader

  public final int getCommunityID()
  {
    return comm.getCommunityID();

  } // end getCommunityID

  public final String getParameters()
  {
    String rc = "<INPUT TYPE=\"HIDDEN\" NAME=\"sig\" VALUE=\"" + comm.getCommunityID() + "\">";
    if (conf==null)
      return rc;
    rc += ("\n<INPUT TYPE=\"HIDDEN\" NAME=\"conf\" VALUE=\"" + conf.getConfID() + "\">");
    if (topic==null)
      return rc;
    rc += ("\n<INPUT TYPE=\"HIDDEN\" NAME=\"top\" VALUE=\"" + topic.getTopicNumber() + "\">");
    return rc;

  } // end getAdditionalParameters

} // end class Invitation