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<?php
/**
 * @package   admintools
 * @copyright Copyright (c)2010-2022 Nicholas K. Dionysopoulos / Akeeba Ltd
 * @license   GNU General Public License version 3, or later
 */

namespace Akeeba\AdminTools\Admin\Model;

defined('_JEXEC') || die;

use FOF40\Container\Container;
use FOF40\Date\Date;
use FOF40\Model\DataModel;
use JDatabaseQuery;

/**
 * Class SecurityExceptions
 *
 * @package Akeeba\AdminTools\Admin\Model
 *
 * @property   int      $id
 * @property   string   $logdate
 * @property   string   $ip
 * @property   string   $url
 * @property   string   $reason
 * @property   string   $extradata
 *
 * @property-read   int $block
 *
 * @method  $this   datefrom() datefrom(string $v)
 * @method  $this   dateto() dateto(string $v)
 * @method  $this   groupbydate()  groupbydate(int $v)
 * @method  $this   groupbytype()  groupbytype(int $v)
 * @method  $this   reason()  reason(string $v)
 */
class SecurityExceptions extends DataModel
{
	public function __construct(Container $container, array $config)
	{
		// We have a non-standard name (singular instead of plural)
		$config['tableName']   = '#__admintools_log';
		$config['idFieldName'] = 'id';

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

	public function buildQuery($overrideLimits = false)
	{
		$db    = $this->getDbo();
		$query = $db->getQuery(true)
			->from($db->qn('#__admintools_log') . ' AS ' . $db->qn('l'));

		if ($this->getState('groupbydate', 0) == 1)
		{
			$this->addKnownField('date');
			$this->addKnownField('exceptions');

			$query->select([
				'DATE(' . $db->qn('l') . '.' . $db->qn('logdate') . ') AS ' . $db->qn('date'),
				'COUNT(' . $db->qn('l') . '.' . $db->qn('id') . ') AS ' . $db->qn('exceptions'),
			]);
		}
		elseif ($this->getState('groupbytype', 0) == 1)
		{
			$this->addKnownField('reason');
			$this->addKnownField('exceptions');

			$query->select([
				$db->qn('l') . '.' . $db->qn('reason'),
				'COUNT(' . $db->qn('l') . '.' . $db->qn('id') . ') AS ' . $db->qn('exceptions'),
			]);
		}
		else
		{
			$this->addKnownField('block');

			$query
				->select([
					$db->qn('l') . '.*',
					'CASE COALESCE(' . $db->qn('b') . '.' . $db->qn('ip') . ', ' . $db->q(0) . ') WHEN ' . $db->q(0)
					. ' THEN ' . $db->q('0') . ' ELSE ' . $db->q('1') . ' END AS ' . $db->qn('block'),
				])
				->join('LEFT OUTER',
					$db->qn('#__admintools_ipblock') . ' AS ' . $db->qn('b') .
					'ON (' . $db->qn('b') . '.' . $db->qn('ip') . ' = ' .
					$db->qn('l') . '.' . $db->qn('ip') . ')'
				);
		}

		$userTZ      = $this->container->platform->getUser()->getParam('timezone', $this->container->platform->getConfig()->get('offset', 'UTC'));
		$fltDateFrom = $this->getState('datefrom', null, 'string');

		if ($fltDateFrom)
		{
			$regex = '/^\d{1,4}(\/|-)\d{1,2}(\/|-)\d{2,4}[[:space:]]{0,}(\d{1,2}:\d{1,2}(:\d{1,2}){0,1}){0,1}$/';

			if (!preg_match($regex, $fltDateFrom) || (substr($fltDateFrom, 0, 1) == '-') || (substr($fltDateFrom, 0, 2) == '00'))
			{
				$fltDateFrom = '2000-01-01 00:00:00';
				$this->setState('datefrom', '');
			}

			$date = new Date($fltDateFrom, $userTZ);
			$date->setTime(0, 0, 0);
			$query->where($db->qn('logdate') . ' >= ' . $db->q($date->toSql()));
		}

		$fltDateTo = $this->getState('dateto', null, 'string');

		if ($fltDateTo)
		{
			$regex = '/^\d{1,4}(\/|-)\d{1,2}(\/|-)\d{2,4}[[:space:]]{0,}(\d{1,2}:\d{1,2}(:\d{1,2}){0,1}){0,1}$/';

			if (!preg_match($regex, $fltDateTo) || (substr($fltDateTo, 0, 1) == '-') || (substr($fltDateTo, 0, 2) == '00'))
			{
				$fltDateTo = '2037-01-01 00:00:00';
				$this->setState('dateto', '');
			}

			$date = new Date($fltDateTo, $userTZ);
			$date->setTime(23, 59, 59);
			$query->where($db->qn('logdate') . ' <= ' . $db->q($date->toSql()));
		}

		$fltIP = $this->getState('ip', null, 'string');

		if ($fltIP)
		{
			$fltIP = '%' . $fltIP . '%';
			$query->where($db->qn('l') . '.' . $db->qn('ip') . ' LIKE ' . $db->q($fltIP));
		}

		$fltURL = $this->getState('url', null, 'string');

		if ($fltURL)
		{
			$fltURL = '%' . $fltURL . '%';
			$query->where($db->qn('url') . ' LIKE ' . $db->q($fltURL));
		}

		$fltReason = $this->getState('reason', null, 'cmd');

		if ($fltReason)
		{
			$query->where($db->qn('reason') . ' = ' . $db->q($fltReason));
		}

		$this->_buildQueryGroup($query);

		if ($this->getState('groupbydate', 0) == 1)
		{
			$query->order('DATE(' . $db->qn('l') . '.' . $db->qn('logdate') . ') ASC');
		}
		elseif ($this->getState('groupbytype', 0) == 1)
		{
			$query->order($db->qn('l') . '.' . $db->qn('reason') . ' ASC');
		}
		elseif (!$overrideLimits)
		{
			$order = $this->getState('filter_order', 'logdate', 'cmd');

			if (!in_array($order, array_keys($this->knownFields)))
			{
				$order = 'logdate';
			}

			$dir = $this->getState('filter_order_Dir', 'DESC', 'cmd');

			$query->order($order . ' ' . $dir);
		}

		return $query;
	}

	/**
	 * @param   JDatabaseQuery  $query
	 */
	protected function _buildQueryGroup($query)
	{
		$db = $this->getDbo();

		if ($this->getState('groupbydate', 0) == 1)
		{
			$query->group([
				'DATE(' . $db->qn('l') . '.' . $db->qn('logdate') . ')',
			]);
		}
		elseif ($this->getState('groupbytype', 0) == 1)
		{
			$query->group([
				$db->qn('l') . '.' . $db->qn('reason'),
			]);
		}
	}
}