<?php
/**
 * $Id$
 *
 * Document collaboration business logic - contains business logic to set up
 * document approval process
 *
 * Licensed under the GNU GPL. For full terms see the file DOCS/COPYING.
 *
 * Required form variables:
 *	o fFolderCollaborationID - primary key of folder collaboration entry we are viewing
 *	o fDocumentID - primary key of document this folder collaboration entry is for
 *	o fIsActive - whether the document collaboration set is active or not
 *
 * Copyright (c) 2003 Jam Warehouse http://www.jamwarehouse.com
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * @version $Revision$
 * @author Rob Cherry, Jam Warehouse (Pty) Ltd, South Africa
 * @package documentmanagement
 */

require_once("../../../../config/dmsDefaults.php");

if (checkSession()) {
	require_once("$default->fileSystemRoot/lib/visualpatterns/PatternListBox.inc");
	require_once("$default->fileSystemRoot/lib/foldermanagement/FolderCollaboration.inc");
	require_once("$default->fileSystemRoot/lib/foldermanagement/FolderUserRole.inc");
	require_once("$default->fileSystemRoot/lib/foldermanagement/Folder.inc");
	require_once("$default->fileSystemRoot/lib/roles/Role.inc");
	require_once("$default->fileSystemRoot/lib/users/User.inc");
	require_once("$default->fileSystemRoot/lib/documentmanagement/Document.inc");
	require_once("$default->fileSystemRoot/lib/documentmanagement/DocumentCollaboration.inc");
	require_once("$default->fileSystemRoot/lib/email/Email.inc");
	require_once("$default->fileSystemRoot/lib/groups/Group.inc");	
	require_once("$default->fileSystemRoot/presentation/Html.inc");
	require_once("$default->fileSystemRoot/lib/security/Permission.inc");	
	require_once("$default->fileSystemRoot/lib/visualpatterns/PatternCustom.inc");
	require_once("documentUI.inc");
	require_once("collaborationUI.inc");
	
	
	//if the required form variabled are set
	if (isset($fFolderCollaborationID) && isset($fDocumentID)) {
		//if the user has write permission for the document
		$oDocument = Document::get($fDocumentID);
		if (Permission::userHasDocumentWritePermission($oDocument)) {
			if ($fIsActive) {
				//if the document collaboration step the user is attempting to edit is underway, you may not edit it
				//so bounce the user back to the document view page and display an error message
				controllerRedirect("viewDocument", "fDocumentID=$fDocumentID&fShowSection=documentRouting&fCollaborationEdit=0");
			}
			if ($fIsDone) {
				//the user is attempting to edit a step in the document collaboration process that has already been done
				//so bounce the user back to the document view page and display an error message
				controllerRedirect("viewDocument", "fDocumentID=$fDocumentID&fShowSection=documentRouting&fCollaborationEdit=0");
			}
			if (isset($fForStore)) {
				//if we are storing, get the folder collaboration entry from the database				
				$oFolderCollaboration = & FolderCollaboration::get($fFolderCollaborationID);
				if (isset($fUserID) && ($fUserID != "")) {
					//if a user has been selected, then set up the folders_users_roles_link database entry
					$oFolderUserRole = & FolderUserRole::getFromFolderCollaboration($fFolderCollaborationID, $fDocumentID);					
					if (!($oFolderUserRole === false)) {					
						//if we have an entry, just update it
						if ($oFolderUserRole->getUserID() != $fUserID) {
							//the user assigned has been changed, so inform the old user of his removal from the 
							//collaboration process
							$oOldUser = User::get($oFolderUserRole->getUserID());
							$oRole = Role::get($oFolderCollaboration->getRoleID());
							$oEmail = & new Email();							
							$oDocument = Document::get($fDocumentID);							
							
							$sBody = "You have been unassigned the role of '" . $oRole->getName() . "' in the collaboration process for the document entitled '" . $oDocument->getName() . "'";					
							$oEmail->send($oOldUser->getEmail(), "Unassigment of role in document collaboration process", $sBody);
						}
						$oFolderUserRole->setUserID($fUserID);
						$oFolderUserRole->update();
					} else {
						//otherwise, create a new one
						$oFolderUserRole = & new FolderUserRole($fUserID, $fDocumentID, $fFolderCollaborationID, 0);												
						$oFolderUserRole->create();						
					}					
					//email the user to inform him of his newly assigned role in the collaboration process
					$oEmail = & new Email();			
					$oRole = Role::get($oFolderCollaboration->getRoleID());
					$oDocument = Document::get($fDocumentID);
					$oUser = User::get($fUserID);
					
					$sBody = "You have been assigned the role of '" . $oRole->getName() . "' in the collaboration process for the document entitled '" . $oDocument->getName() . "'.  You will be informed when your role becomes active";					
					$oEmail->send($oUser->getEmail(), "Assigment of role in document collaboration process", $sBody);
                    
					//go back to the document view page
					controllerRedirect("viewDocument", "fDocumentID=$fDocumentID&fShowSection=documentRouting");                   
				} else {
					//the user may have been unassigned and no new user assigned
					//if this is true, delete the folder_user_role_link
					$oFolderUserRole = & FolderUserRole::getFromFolderCollaboration($fFolderCollaborationID, $fDocumentID);
					if (!($oFolderUserRole === false)) {
						$oFolderUserRole->delete();
					}
					//go back to the document view page
					controllerRedirect("viewDocument", "fDocumentID=$fDocumentID&fShowSection=documentRouting");
				}
			} else {
				//we're still browsing, so just display the document routing details
				require_once("$default->fileSystemRoot/presentation/webpageTemplate.inc");			
				$oPatternCustom = & new PatternCustom();
				
				$aFolderCollaborationArray = getFolderCollaborationArray($fFolderCollaborationID, $fDocumentID);			
				$oPatternCustom->setHtml(getDocumentRoutingPage($aFolderCollaborationArray["group_id"],$aFolderCollaborationArray["user_id"], $aFolderCollaborationArray["role_id"], $aFolderCollaborationArray["sequence"], $fDocumentID));
				$main->setCentralPayload($oPatternCustom);
				$main->setFormAction($_SERVER["PHP_SELF"] . "?fFolderCollaborationID=$fFolderCollaborationID&fDocumentID=$fDocumentID&fForStore=1");
				$main->render();
			}
		} else {
			//user does not have permission to edit these details
			require_once("$default->fileSystemRoot/presentation/webpageTemplate.inc");			
			$oPatternCustom = & new PatternCustom();							
			$oPatternCustom->setHtml("<a href=\"$default->rootUrl/control.php?action=viewDocument&fDocumentID=" . $fDocumentID . "\">Return to document view page</a>");
			$main->setCentralPayload($oPatternCustom);
			$main->setErrorMessage("You do not have permission to edit document routing details");
			$main->render();
		}
	} else {
			//no document routing information selected
			require_once("$default->fileSystemRoot/presentation/webpageTemplate.inc");			
			$oPatternCustom = & new PatternCustom();							
			$oPatternCustom->setHtml("<a href=\"$default->rootUrl/control.php?action=dashboard\">Return to document dashboard</a>");
			$main->setCentralPayload($oPatternCustom);
			$main->setErrorMessage("No document/document routing details are currently selected");
			$main->render();
	}
}

function getFolderCollaborationArray($fFolderCollaborationID, $fDocumentID) {
	global $default;
	$sQuery = "SELECT GFL.group_id AS group_id, GFL.folder_id AS folder_id, GFL.precedence AS precedence, GFL.role_id, COALESCE(U.id, U2.id) AS user_id " .
			"FROM $default->groups_folders_approval_table AS GFL LEFT OUTER JOIN folders_users_roles_link AS FURL ON FURL.group_folder_approval_id = GFL.id AND FURL.document_id = $fDocumentID " .
			"LEFT OUTER JOIN users AS U ON FURL.user_id = U.id " .
			"LEFT OUTER JOIN users AS U2 ON GFL.user_id = U2.id " .
			"WHERE GFL.id = $fFolderCollaborationID";
	$sql = $default->db;
	$sql->query($sQuery);
	if ($sql->next_record()) {
		return array("group_id" => $sql->f("group_id"), "user_id" => $sql->f("user_id"), "role_id" => $sql->f("role_id"), "sequence" => $sql->f("precedence"));
	} 
}

?>