<?php namespace tinyPHP\Classes\Core;
/**
 *
 * Form Validator
 *  
 * PHP 5
 *
 * tinyPHP(tm) : Simple & Lightweight MVC Framework (http://tinyphp.us/)
 * Copyright 2012, 7 Media Web Solutions, LLC (http://www.7mediaws.org/)
 *
 * Licensed under The MIT License
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright Copyright 2012, 7 Media Web Solutions, LLC (http://www.7mediaws.org/)
 * @link http://tinyphp.us/ tinyPHP(tm) Project
 * @since tinyPHP(tm) v 0.1
 * @license MIT License (http://www.opensource.org/licenses/mit-license.php)
 */

if ( ! defined('BASE_PATH') ) exit('No direct script access allowed');

class Val {
	
	public function __construct() {}
	
	public function minlength($data, $arg) {
		if (strlen($data) < $arg) {
			return "Your string can only be $arg long";
		}
	}
	
	public function maxlength($data, $arg) {
		if (strlen($data) > $arg) {
			return "Your string can only be $arg long";
		}
	}
	
	public function digit($data) {
		if (ctype_digit($data) == false) {
			return "Your string must be a digit";
		}
	}
	
	public function is_valid_username($username) {
		if (preg_match('/^[a-z\d_]{5,20}$/i', $username)) {
			return true;
		} else {
			return false;
		}
	}
	
	public function is_valid_email($email){
  		return preg_match('/^\S+@[\w\d.-]{2,}\.[\w]{2,6}$/iU', $email) ? TRUE : FALSE;
	}
	
	public function is_valid_password($x,$y) {
		if(empty($x) || empty($y) ) { return false; }
			if (strlen($x) < 4 || strlen($y) < 4) { return false; }

		if (strcmp($x,$y) != 0) {
 			return false;
		} 
			return true;
	}
	
	public function generate_user_password($length = 7) {
  		$password = "";
  		$possible = "0123456789bcdfghjkmnpqrstvwxyz"; //no vowels
  
  			$i = 0; 
    
  				while ($i < $length) { 
    				$char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
    				if (!strstr($password, $char)) { 
      					$password .= $char;
      				$i++;
    			}

  		}

  		return $password;
	}
	
	public function __call($name, $arguments) {
		throw new \Exception("$name does not exist inside of: " . __CLASS__);
	}
	
}