<?php
/*
* 2007-2015 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <contact@prestashop.com>
*  @copyright  2007-2015 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

class Condition extends ObjectModel
{
	public $id;
	
	public $id_ps_condition;
		
	public $type;
	
	public $request;
	
	public $operator;
	
	public $value;
	
	public $result;
	
	public $calculation_type;
	
	public $calculation_detail;
	
	public $validated;
	
	public $date_add;

	public $date_upd;
	
	public static $unauthorized = array('DELETE', 'DROP');
	
	/**
	 * @see ObjectModel::$definition
	 */
	public static $definition = array(
		'table' => 'condition',
		'primary' => 'id_condition',
		'fields' => array(
			'id_ps_condition' =>		array('type' => self::TYPE_INT, 'validate' => 'isInt'),
			'type' =>					array('type' => self::TYPE_STRING, 'size' => 32),
			'request' => 				array('type' => self::TYPE_STRING),
			'operator' =>				array('type' => self::TYPE_NOTHING),
			'value' =>					array('type' => self::TYPE_STRING),
			'result' =>					array('type' => self::TYPE_STRING),
			'calculation_type' =>		array('type' => self::TYPE_STRING),
			'calculation_detail' =>		array('type' => self::TYPE_STRING),
			'validated' =>				array('type' => self::TYPE_BOOL, 'validate' => 'isBool'),
			'date_add' => 				array('type' => self::TYPE_DATE, 'validate' => 'isDateFormat'),
			'date_upd' => 				array('type' => self::TYPE_DATE, 'validate' => 'isDateFormat'),
		),
	);
	
	public static function getIdByIdPs($id_ps_condition)
	{
		$query = new DbQuery();
		$query->select('id_condition');
		$query->from('condition', 'c');
		$query->where('`id_ps_condition` = '.(int)$id_ps_condition);
		
		return (int)Db::getInstance()->getValue($query);
	}
	
	public static function getIdsByHookCalculation($hook_name)
	{
		$ids = array();
		$in = array();
		
		$sub_query = new DbQuery();
		$sub_query->select('id_badge');
		$sub_query->from('badge', 'b');
		$sub_query->where('b.`validated` = 0');

		$sub_results = Db::getInstance()->executeS($sub_query);

		foreach ($sub_results as $sub_result)
			$in[] = $sub_result['id_badge'];

		$query = new DbQuery();
		$query->select('c.`id_condition`');
		$query->from('condition', 'c');
		$query->join('LEFT JOIN `'._DB_PREFIX_.'condition_badge` cb ON cb.`id_condition` = c.`id_condition`');
		$query->where('c.`calculation_type` = \'hook\'');
		$query->where('c.`calculation_detail` = \''.pSQL($hook_name).'\'');
		$query->where('c.`validated` = 0');
		if (count($in))
			$query->where('cb.`id_badge` IN ('.implode(',', $in).')');
		$query->groupBy('c.`id_condition`');

		$result = Db::getInstance()->executeS($query);

		foreach($result as $r)
			$ids[] = $r['id_condition'];
		
		$sub_query = new DbQuery();
		$sub_query->select('id_advice');
		$sub_query->from('advice', 'a');

		$sub_results = Db::getInstance()->executeS($sub_query);

		$in = array();

		foreach ($sub_results as $sub_result)
			$in[] = $sub_result['id_advice'];
		
		$query = new DbQuery();
		$query->select('c.`id_condition`');
		$query->from('condition', 'c');
		$query->join('LEFT JOIN `'._DB_PREFIX_.'condition_advice` ca ON ca.`id_condition` = c.`id_condition`');
		$query->where('c.`calculation_type` = \'hook\'');
		$query->where('c.`calculation_detail` = \''.pSQL($hook_name).'\'');
		$query->where('c.`validated` = 0');
		if (count($in))
			$query->where('ca.`id_advice` IN ('.implode(',', $in).')');
		$query->groupBy('c.`id_condition`');
		$result = Db::getInstance()->executeS($query);
		
		foreach($result as $r)
			$ids[] = $r['id_condition'];
		
		return array_unique($ids);
	}
	
	public static function getIdsDailyCalculation()
	{
		$ids = array();
		$in = array();

		//badges conditions validation
		$sub_query = new DbQuery();
		$sub_query->select('id_badge');
		$sub_query->from('badge', 'b');

		$sub_results = Db::getInstance()->executeS($sub_query);

		foreach ($sub_results as $sub_result)
			$in[] = $sub_result['id_badge'];

		$query = new DbQuery();
		$query->select('c.`id_condition`');
		$query->from('condition', 'c');
		$query->join('LEFT JOIN `'._DB_PREFIX_.'condition_badge` cb ON cb.`id_condition` = c.`id_condition`');
		$query->where('c.`calculation_type` = \'time\'');
		$query->where('DATEDIFF(NOW(), `date_upd`) >= `calculation_detail`');
		$query->where('c.`validated` = 0');
		if (count($in))
			$query->where('cb.`id_badge` IN ('.implode(',', $in).')');
		$query->groupBy('c.`id_condition`');
		
		$result = Db::getInstance()->executeS($query);

		foreach($result as $r)
			$ids[] = $r['id_condition'];
		
		//advice conditions validation
		$sub_query = new DbQuery();
		$sub_query->select('id_advice');
		$sub_query->from('advice', 'a');

		$sub_results = Db::getInstance()->executeS($sub_query);

		$in = array();

		foreach ($sub_results as $sub_result)
			$in[] = $sub_result['id_advice'];
		
		$query = new DbQuery();
		$query->select('c.`id_condition`');
		$query->from('condition', 'c');
		$query->join('LEFT JOIN `'._DB_PREFIX_.'condition_advice` ca ON ca.`id_condition` = c.`id_condition`');
		$query->where('c.`calculation_type` = \'time\'');
		$query->where('DATEDIFF(NOW(), `date_upd`) >= `calculation_detail`');
		$query->where('c.`validated` = 0');
		if (count($in))
			$query->where('ca.`id_advice` IN ('.implode(',', $in).')');
		$query->groupBy('c.`id_condition`');
		
		$result = Db::getInstance()->executeS($query);
		foreach($result as $r)
			$ids[] = $r['id_condition'];
		

		return array_unique($ids);
	}
	
	public static function getIdsByBadgeGroupPosition($badge_group_position)
	{
		$ids = array();
		
		$sub_query = new DbQuery();
		$sub_query->select('id_badge');
		$sub_query->from('badge', 'b');
		$sub_query->where('b.`group_position` = '.(int)$badge_group_position);
		$sub_query->where('b.`validated` = 0');
		$sub_query->groupBy('b.`id_group`');
		
		$query = new DbQuery();
		$query->select('c.`id_condition`');
		$query->from('condition', 'c');
		$query->join('LEFT JOIN `'._DB_PREFIX_.'condition_badge` cb ON cb.`id_condition` = c.`id_condition`');
		$query->where('c.`validated` = 0');
		$query->where('cb.`id_badge` IN ('.$sub_query.')');
		$query->groupBy('c.`id_condition`');
		
		$result = Db::getInstance()->executeS($query);
		foreach($result as $r)
			$ids[] = $r['id_condition'];

		return $ids;
	}
	
	public static function getIdsByBadgeGroup($badge_group)
	{
		$ids = array();
		
		$sub_query = new DbQuery();
		$sub_query->select('id_badge');
		$sub_query->from('badge', 'b');
		$sub_query->where('b.`id_group` = '.(int)$badge_group);
		$sub_query->where('b.`validated` = 0');
		$sub_query->groupBy('b.`id_group`');
		
		$query = new DbQuery();
		$query->select('c.`id_condition`');
		$query->from('condition', 'c');
		$query->join('LEFT JOIN `'._DB_PREFIX_.'condition_badge` cb ON cb.`id_condition` = c.`id_condition`');
		$query->where('c.`validated` = 0');
		$query->where('cb.`id_badge` IN ('.$sub_query.')');
		$query->groupBy('c.`id_condition`');
		
		$result = Db::getInstance()->executeS($query);
		foreach($result as $r)
			$ids[] = $r['id_condition'];

		return $ids;
	}
		
	public function processCalculation()
	{
		switch ($this->type)
		{
			case 'configuration':
				$this->processConfiguration();
			break;
			case 'install':
				$this->processInstall();
			break;
			case 'sql':
				$this->processSql();
			break;
		}
	}
	
	protected function processSql()
	{
		if (preg_match('/'.implode('|', self::$unauthorized).'/', $this->request))
			return false;
		
		try {
			$this->result = (int)Db::getInstance()->getValue(GamificationTools::parseMetaData($this->request));
		} catch (Exception $e) {
			return false;
		}	
		
		if ($this->makeCalculation($this->operator, $this->result, $this->value))
			$this->validated = 1;
		$this->save();
	}
	
	protected function processConfiguration()
	{
		$this->result = Configuration::get($this->request);
		if ($this->result = $this->makeCalculation($this->operator, $this->result, $this->value))
			$this->validated = 1;
		$this->save();
	}
	
	protected function processInstall()
	{		
		$install = strtotime(_PS_CREATION_DATE_.' 00:00:00');
		$value = strtotime('+ '.(int)$this->value.' day', $install);
		$this->result = $this->makeCalculation($this->operator, (time() - $install), $value - $install);
		if ($this->result)
			$this->validated = 1;

		$this->save();
	}
	
	protected function makeCalculation($operator, $arg1, $arg2)
	{
		$result = false;
		switch ($operator)
		{
			case '>':
				$result = $arg1 > $arg2;
				break;
			case '>=':
				$result = $arg1 >= $arg2;
				break;
			case '<':
				$result = $arg1 < $arg2;
				break;
			case '<=':
				$result = $arg1 <= $arg2;
				break;
			case '==':
				$result = $arg1 == $arg2;
				break;
			case '!=':
				$result = $arg1 != $arg2;
				break;
			break;
		}
		return (bool)$result;
	}
	
	
}
