// 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@users.sf.net>,
// 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): 

importPackage(Packages.com.silverwrist.venice.core);
importPackage(Packages.com.silverwrist.venice.except);
importPackage(Packages.com.silverwrist.venice.ui);
importPackage(Packages.com.silverwrist.venice.ui.helpers);

rinput = bsf.lookupBean("request");

boxid = rinput.getParameterInt("box",0);
if (boxid==0)
{ // the box ID parameter is invalid
  vlib.output(new ErrorBox(null,"Box parameter invalid!","usr/sidebox.js.vs"));
  vlib.done();

} // end if

rc = null;
try
{ // locate the specified sidebox in the list
  sidebox_list = rinput.user.getSideBoxList();
  next = null;
  curr = null;
  it = sidebox_list.iterator();
  found = false;
  while (!found && it.hasNext())
  { // look for the right descriptor
    curr = vlib.castUserSideBoxDescriptor(it.next());
    if (boxid==curr.sideBoxID)
    { // found the current one - get the next one as well
      found = true;
      if (it.hasNext())
        next = vlib.castUserSideBoxDescriptor(it.next());

    } // end if

  } // end while

  if (found && (next!=null))
  { // exchange sequence numbers between curr and next
    seq_curr = curr.sequence;
    seq_next = next.sequence;
    curr.sequence = seq_next;   // first "set"
    restore = true;
    try
    { // do the second "set"
      next.sequence = seq_curr;
      restore = false;

    } // end try
    finally
    { // restore first if second failed
      if (restore)
        curr.sequence = seq_curr;

    } // end finally

  } // end if
  // else just fall out and don't do anything

  // now execute the "sidebox.js" script to do the redisplay
  rc = vlib.exec("usr/sidebox.js");
  rinput.location = "usr/sidebox.js.vs";

} // end try
catch (e)
{ // exception modifying the sidebox list
  etype = vlib.exceptionType(e) + "";
  if (etype.match("DataException"))
    rc = new ErrorBox("Database Error","Error adjusting sidebox list: " + e.message,"usr/sidebox.js.vs");
  else
    rc = e;

} // end catch

vlib.output(rc);