<?php

/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace Symfony\Component\Finder\Comparator;

/**
* Comparator.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class Comparator
{
private $target;
private $operator = '==';

/**
* Gets the target value.
*
* @return string The target value
*/
public function getTarget()
{
return $this->target;
}

/**
* Sets the target value.
*
* @param string $target The target value
*/
public function setTarget($target)
{
$this->target = $target;
}

/**
* Gets the comparison operator.
*
* @return string The operator
*/
public function getOperator()
{
return $this->operator;
}

/**
* Sets the comparison operator.
*
* @param string $operator A valid operator
*
* @throws \InvalidArgumentException
*/
public function setOperator($operator)
{
if (!$operator) {
$operator = '==';
}

if (!in_array($operator, array('>', '<', '>=', '<=', '==', '!='))) {
throw new \InvalidArgumentException(sprintf('Invalid operator "%s".', $operator));
}

$this->operator = $operator;
}

/**
* Tests against the target.
*
* @param mixed $test A test value
*
* @return bool
*/
public function test($test)
{
switch ($this->operator) {
case '>':
return $test > $this->target;
case '>=':
return $test >= $this->target;
case '<':
return $test < $this->target;
case '<=':
return $test <= $this->target;
case '!=':
return $test != $this->target;
}

return $test == $this->target;
}
}