<?php
/**
 *
 * This file is part of HESK - PHP Help Desk Software.
 *
 * (c) Copyright Klemen Stirn. All rights reserved.
 * https://www.hesk.com
 *
 * For the full copyright and license agreement information visit
 * https://www.hesk.com/eula.php
 *
 */

define('IN_SCRIPT',1);
define('HESK_PATH','../');

/* Get all the required files and functions */
require(HESK_PATH . 'hesk_settings.inc.php');
require(HESK_PATH . 'inc/common.inc.php');
require(HESK_PATH . 'inc/admin_functions.inc.php');
hesk_load_database_functions();
require(HESK_PATH . 'inc/email_functions.inc.php');
require_once(HESK_PATH . 'inc/customer_accounts.inc.php');

hesk_session_start();
hesk_dbConnect();
hesk_isLoggedIn();

/* Check permissions for this feature */
if ( ! hesk_checkPermission('can_change_cat', 0))
{
    hesk_checkPermission('can_change_own_cat');
}

/* A security check */
hesk_token_check('POST');

/* Ticket ID */
$trackingID = hesk_cleanID() or die($hesklang['int_error'].': '.$hesklang['no_trackID']);

/* Category ID */
$category   = intval( hesk_POST('category', -1) );
if ($category < 1)
{
	hesk_process_messages($hesklang['incat'],'admin_ticket.php?track='.$trackingID.'&Refresh='.rand(10000,99999),'NOTICE');
}

/* Get new category details */
$res = hesk_dbQuery("SELECT `name`,`autoassign` FROM `".hesk_dbEscape($hesk_settings['db_pfix'])."categories` WHERE `id`='{$category}' LIMIT 1");
if (hesk_dbNumRows($res) != 1)
{
	hesk_error("$hesklang[int_error]: $hesklang[kb_cat_inv].");
}
$row = hesk_dbFetchAssoc($res);

/* Should tickets in new category be auto-assigned if necessary? */
if ( ! $row['autoassign'])
{
	$hesk_settings['autoassign'] = false;
}

/* Is user allowed to view tickets in new category? */
$category_ok = hesk_okCategory($category,0);

// Is user allowed to move tickets to this category?
if ( ! $category_ok && ! hesk_checkPermission('can_change_cat', 0) )
{
    hesk_process_messages($hesklang['noauth_move'],'admin_main.php');
}

/* Get details about the original ticket */
$res = hesk_dbQuery("SELECT * FROM `".hesk_dbEscape($hesk_settings['db_pfix'])."tickets` WHERE `trackid`='".hesk_dbEscape($trackingID)."' LIMIT 1");
if (hesk_dbNumRows($res) != 1)
{
	hesk_error($hesklang['ticket_not_found']);
}
$ticket = hesk_dbFetchAssoc($res);

/* Log that ticket is being moved */
$history = sprintf($hesklang['thist1'],hesk_date(),addslashes($row['name']),addslashes($_SESSION['name']).' ('.$_SESSION['user'].')');

/* Is the ticket assigned to someone? If yes, check that the user has access to category or change to unassigned */
$need_to_reassign = 0;
if ($ticket['owner'])
{
	if ($ticket['owner'] == $_SESSION['id'] && ! $category_ok )
    {
		$need_to_reassign = 1;
    }
    else
    {
		$res = hesk_dbQuery("SELECT `isadmin`,`categories` FROM `".hesk_dbEscape($hesk_settings['db_pfix'])."users` WHERE `id`='".intval($ticket['owner'])."' LIMIT 1");
		if (hesk_dbNumRows($res) != 1)
		{
			$need_to_reassign = 1;
		}
        else
        {
        	$tmp = hesk_dbFetchAssoc($res);
            if ( ! hesk_okCategory($category,0,$tmp['isadmin'], explode(',',$tmp['categories']) ) )
            {
            	$need_to_reassign = 1;
            }
        }
    }
}

/* Reassign automatically if possible */
if ($need_to_reassign || ! $ticket['owner'])
{
	$need_to_reassign = 1;
	$autoassign_owner = hesk_autoAssignTicket($category);
	if ($autoassign_owner)
	{
		$ticket['owner'] = $autoassign_owner['id'];
	    $history .= sprintf($hesklang['thist10'],hesk_date(),addslashes($autoassign_owner['name']).' ('.$autoassign_owner['user'].')');
	}
    else
    {
    	$ticket['owner'] = 0;
    }
}

hesk_dbQuery("UPDATE `".hesk_dbEscape($hesk_settings['db_pfix'])."tickets` SET `category`='".intval($category)."', `owner`='".intval($ticket['owner'])."' , `history`=CONCAT(`history`,'".hesk_dbEscape($history)."') WHERE `trackid`='".hesk_dbEscape($trackingID)."'");

$ticket['category'] = $category;
$customers = hesk_get_customers_for_ticket($ticket['id']);
$customer_emails = array_map(function($customer) { return $customer['email']; }, $customers);
$customer_names = array_map(function($customer) { return $customer['name']; }, $customers);

/* --> Prepare message */

// 1. Generate the array with ticket info that can be used in emails
$info = array(
'email'			=> implode(';', $customer_emails),
'category'		=> $ticket['category'],
'priority'		=> $ticket['priority'],
'owner'			=> $ticket['owner'],
'trackid'		=> $ticket['trackid'],
'status'		=> $ticket['status'],
'name'			=> implode(',', $customer_names),
'subject'		=> $ticket['subject'],
'message'		=> $ticket['message'],
'message_html'  => $ticket['message_html'],
'attachments'	=> $ticket['attachments'],
'dt'			=> hesk_date($ticket['dt'], true),
'lastchange'	=> hesk_date($ticket['lastchange'], true),
'due_date'      => hesk_format_due_date($ticket['due_date']),
'id'			=> $ticket['id'],
'time_worked'   => $ticket['time_worked'],
'last_reply_by' => hesk_getReplierName($ticket),
);

// 2. Add custom fields to the array
foreach ($hesk_settings['custom_fields'] as $k => $v)
{
	$info[$k] = $v['use'] ? $ticket[$k] : '';
}

// 3. Make sure all values are properly formatted for email
$ticket = hesk_ticketToPlain($info, 1, 0);

/* Need to notify any staff? */
/* --> From autoassign? */
if ($need_to_reassign && ! empty($autoassign_owner['email']) )
{
	hesk_notifyAssignedStaff($autoassign_owner, 'ticket_assigned_to_you', 'notify_assigned', false);
}
/* --> No autoassign, find and notify appropriate staff */
elseif ( ! $ticket['owner'] )
{
	hesk_notifyStaff('category_moved', "`notify_new_unassigned`='1' AND `id`!=".intval($_SESSION['id']) );
}

/* Is the user allowed to view tickets in the new category? */
if ($category_ok)
{
	/* Ticket has an owner */
	if ($ticket['owner'])
    {
    	/* Staff is owner or can view tickets assigned to others */
		if ($ticket['owner'] == $_SESSION['id'] || hesk_checkPermission('can_view_ass_others',0) )
        {
			hesk_process_messages($hesklang['moved_to'],'admin_ticket.php?track='.$trackingID.'&Refresh='.rand(10000,99999),'SUCCESS');
        }
        else
        {
			hesk_process_messages($hesklang['moved_to'],'admin_main.php','SUCCESS');
        }
    }
    /* Ticket is unassigned, staff can view unassigned tickets */
    elseif (hesk_checkPermission('can_view_unassigned',0))
    {
		hesk_process_messages($hesklang['moved_to'],'admin_ticket.php?track='.$trackingID.'&Refresh='.rand(10000,99999),'SUCCESS');
    }
    /* Ticket is unassigned, staff cannot view unassigned tickets */
	else
	{
	    hesk_process_messages($hesklang['moved_to'],'admin_main.php','SUCCESS');
	}
}
else
{
    hesk_process_messages($hesklang['moved_to'],'admin_main.php','SUCCESS');
}
?>
