namespace Faker;

/**

 * Proxy for other generators, to return only unique values. Works with

 * Faker\Generator\Base->unique()

 */

class UniqueGenerator

{

    protected $generator;

    protected $maxRetries;

	protected $moreStuff;

    protected $uniques = array();

    public function __construct(Generator $generator, $maxRetries)

    {

        $this->generator = $generator;

        $this->maxRetries = $maxRetries + 1;

    }

    /**

     * Catch and proxy all generator calls but return only unique values

     */

    public function __get($attribute)

    {

        return $this->__call($attribute, array());

    }

    /**

     * Catch and proxy all generator calls with arguments but return only unique values

     */

    public function __call($name, $arguments)

    {

        $i = 0;

        if (!isset($this->uniques[$name])) {

            $this->uniques[$name] = array();

        }

        do {

            $res = call_user_func_array(array($this->generator, $name), $arguments);

            $i++;

            if ($i >= $this->maxRetries) {

                throw new \OverflowException(sprintf('Maximum retries of %d reached without finding a unique value', $this->maxRetries));

            }

        } while (in_array($res, $this->uniques[$name]));

        $this->uniques[$name][]= $res;

        return $res;

    }

}