<?php


class App_Wizard_Validate_Unique extends Zend_Validate_Abstract
{

    const NOT_UNIQUE = 'notUnique';

    protected $_additionalValues = array();
    protected $_data = array();
    protected $_messageTemplates = array(
        self::NOT_UNIQUE => 'Please do not use the same names'
    );

    function __construct(array $options)
    {
        if ($options instanceof Zend_Config) {
            $options = $options->toArray();
        } else if (!is_array($options)) {
            throw new Exception('Invalid options');
        }
        if (!array_key_exists('data', $options)) {
            throw new Exception('Data is undefined');
        }
        $this->setDataValues($options['data']);
        if (isset($options['additionalValues']) && $options['additionalValues']) {
            $this->setAdditionalValues($options['additionalValues']);
        }
    }

    /**
     * @param array $data
     * @return $this
     */
    public function setAdditionalValues($data)
    {
        $this->_additionalValues = $data;
        return $this;
    }

    /**
     * @return mixed
     */
    public function getAdditionalValues()
    {
        return $this->_additionalValues;
    }

    /**
     * @param array $data
     * @return $this
     */
    public function setDataValues($data)
    {
        $this->_data = $data;
        return $this;
    }

    /**
     * @return mixed
     */
    public function getDataValues()
    {
        return $this->_data;
    }

    public function isValid($value)
    {
        $values = array_merge($this->getDataValues(), $this->getAdditionalValues());
        if ($values) {
            $applicants = array_filter(array_map('strtolower', array_map('trim', $values)));
            if (count($applicants) != count(array_unique($applicants))) {
                $this->_error(Qs_Translate::translate(self::NOT_UNIQUE));
                return false;
            }
        }
        return true;
    }
}