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<?php

/**
 * This file is part of the Lean Mapper library (http://www.leanmapper.com)
 *
 * Copyright (c) 2013 Vojtěch Kohout (aka Tharos)
 *
 * For the full copyright and license information, please view the file
 * license-mit.txt that was distributed with this source code.
 */

namespace LeanMapper;

use Closure;
use LeanMapper\Exception\InvalidArgumentException;
use LeanMapper\Reflection\Property;

/**
 * Encapsulation of filter call
 *
 * @author Vojtěch Kohout
 */
class Filtering
{

    /** @var array */
    private $filters;

    /** @var array */
    private $args;

    /** @var Entity|null */
    private $entity;

    /** @var Property|null */
    private $property;

    /** @var array */
    private $targetedArgs;


    /**
     * @param array|string|Closure $filters
     * @param array|null $args
     * @param Entity|null $entity
     * @param Property|null $property
     * @param array|null $targetedArgs
     * @throws InvalidArgumentException
     */
    public function __construct($filters, array $args = null, Entity $entity = null, Property $property = null, array $targetedArgs = array())
    {
        if (!is_array($filters)) {
            if (!is_string($filters) and !($filters instanceof Closure)) {
                throw new InvalidArgumentException("Argument \$filters must contain either string (name of filter), instance of Closure or array (with names of filters or instances of Closure).");
            }
            $filters = array($filters);
        }
        $this->filters = $filters;
        $this->args = $args !== null ? $args : array();
        $this->entity = $entity;
        $this->property = $property;
        $this->targetedArgs = $targetedArgs;
    }

    /**
     * @return array
     */
    public function getFilters()
    {
        return $this->filters;
    }

    /**
     * @return array
     */
    public function getArgs()
    {
        return $this->args;
    }

    /**
     * @return Entity|null
     */
    public function getEntity()
    {
        return $this->entity;
    }

    /**
     * @return Property|null
     */
    public function getProperty()
    {
        return $this->property;
    }

    /**
     * @return array
     */
    public function getTargetedArgs()
    {
        return $this->targetedArgs;
    }

}