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<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_checkin
 *
 * @copyright   (C) 2009 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Checkin\Administrator\Model;

\defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\CMS\MVC\Factory\MVCFactoryInterface;
use Joomla\CMS\MVC\Model\ListModel;

/**
 * Checkin Model
 *
 * @since  1.6
 */
class CheckinModel extends ListModel
{
	/**
	 * Count of the total items checked out
	 *
	 * @var  integer
	 */
	protected $total;

/**
	 * Constructor.
	 *
	 * @param   array                $config   An optional associative array of configuration settings.
	 * @param   MVCFactoryInterface  $factory  The factory.
	 *
	 * @see     \Joomla\CMS\MVC\Model\BaseDatabaseModel
	 * @since   3.2
	 */
	public function __construct($config = array(), MVCFactoryInterface $factory = null)
	{
		if (empty($config['filter_fields']))
		{
			$config['filter_fields'] = array(
				'table',
				'count',
			);
		}

parent::__construct($config, $factory);
	}

/**
	 * Method to auto-populate the model state.
	 *
	 * Note: Calling getState in this method will result in recursion.
	 *
	 * @param   string  $ordering   An optional ordering field.
	 * @param   string  $direction  An optional direction (asc|desc).
	 *
	 * @return  void
	 *
	 * @since   1.6
	 */
	protected function populateState($ordering = 'table', $direction = 'asc')
	{
		// List state information.
		parent::populateState($ordering, $direction);
	}

/**
	 * Checks in requested tables
	 *
	 * @param   array  $ids  An array of table names. Optional.
	 *
	 * @return  mixed  The database results or 0
	 *
	 * @since   1.6
	 */
	public function checkin($ids = array())
	{
		$db = $this->getDbo();

if (!is_array($ids))
		{
			return 0;
		}

// This int will hold the checked item count.
		$results = 0;

$app = Factory::getApplication();

foreach ($ids as $tn)
		{
			// Make sure we get the right tables based on prefix.
			if (stripos($tn, $app->get('dbprefix')) !== 0)
			{
				continue;
			}

$fields = $db->getTableColumns($tn, false);

if (!(isset($fields['checked_out']) && isset($fields['checked_out_time'])))
			{
				continue;
			}

$query = $db->getQuery(true)
				->update($db->quoteName($tn))
				->set($db->quoteName('checked_out') . ' = DEFAULT');

if ($fields['checked_out_time']->Null === 'YES')
			{
				$query->set($db->quoteName('checked_out_time') . ' = NULL');
			}
			else
			{
				$nullDate = $db->getNullDate();

$query->set($db->quoteName('checked_out_time') . ' = :checkouttime')
					->bind(':checkouttime', $nullDate);
			}

if ($fields['checked_out']->Null === 'YES')
			{
				$query->where($db->quoteName('checked_out') . ' IS NOT NULL');
			}
			else
			{
				$query->where($db->quoteName('checked_out') . ' > 0');
			}

$db->setQuery($query);

if ($db->execute())
			{
				$results = $results + $db->getAffectedRows();
				$app->triggerEvent('onAfterCheckin', array($tn));
			}
		}

return $results;
	}

/**
	 * Get total of tables
	 *
	 * @return  integer  Total to check-in tables
	 *
	 * @since   1.6
	 */
	public function getTotal()
	{
		if (!isset($this->total))
		{
			$this->getItems();
		}

return $this->total;
	}

/**
	 * Get tables
	 *
	 * @return  array  Checked in table names as keys and checked in item count as values.
	 *
	 * @since   1.6
	 */
	public function getItems()
	{
		if (!isset($this->items))
		{
			$db     = $this->getDbo();
			$tables = $db->getTableList();
			$prefix = Factory::getApplication()->get('dbprefix');

// This array will hold table name as key and checked in item count as value.
			$results = array();

foreach ($tables as $tn)
			{
				// Make sure we get the right tables based on prefix.
				if (stripos($tn, $prefix) !== 0)
				{
					continue;
				}

if ($this->getState('filter.search') && stripos($tn, $this->getState('filter.search')) === false)
				{
					continue;
				}

$fields = $db->getTableColumns($tn, false);

if (!(isset($fields['checked_out']) && isset($fields['checked_out_time'])))
				{
					continue;
				}

$query = $db->getQuery(true)
					->select('COUNT(*)')
					->from($db->quoteName($tn));

if ($fields['checked_out']->Null === 'YES')
				{
					$query->where($db->quoteName('checked_out') . ' IS NOT NULL');
				}
				else
				{
					$query->where($db->quoteName('checked_out') . ' > 0');
				}

$db->setQuery($query);
				$count = $db->loadResult();

if ($count)
				{
					$results[$tn] = $count;
				}
			}

$this->total = count($results);

// Order items by table
			if ($this->getState('list.ordering') == 'table')
			{
				if (strtolower($this->getState('list.direction')) == 'asc')
				{
					ksort($results);
				}
				else
				{
					krsort($results);
				}
			}
			// Order items by number of items
			else
			{
				if (strtolower($this->getState('list.direction')) == 'asc')
				{
					asort($results);
				}
				else
				{
					arsort($results);
				}
			}

// Pagination
			$limit = (int) $this->getState('list.limit');

if ($limit !== 0)
			{
				$this->items = array_slice($results, $this->getState('list.start'), $limit);
			}
			else
			{
				$this->items = $results;
			}
		}

return $this->items;
	}
}