<?php

namespace Twine\forms\strategies\normalization;

/**
 * BooleanNormalization
 * Just casts it to a boolean (so we're assuming that we're only receiving 0 and 1s as
 * inputs. DOes not handle stuff like 'yes','true','money',whatever. 1s and 0s.
 * Does not growl because the only reason they would NOT have a 1 or 0, using something like
 * a select or checkbox, is because they hacked the form
 *
 * @package               Event Espresso
 * @subpackage
 * @author                Mike Nelson
 */
class BooleanNormalization extends NormalizationBase
{

    /**
     * @param string | int | bool $value_to_normalize
     * @return boolean
     */
    public function normalize($value_to_normalize)
    {
        return filter_var($value_to_normalize, FILTER_VALIDATE_BOOLEAN);
    }


    /**
     * @param boolean $normalized_value
     * @return string
     */
    public function unnormalize($normalized_value)
    {
        if ($normalized_value) {
            return '1';
        } else {
            return '0';
        }
    }
}