<?php
	session_start(); // for security purposes.

	/*
		Define a character length
		-- This is for the username
		-- This should not be left blank

	*/

	define('USERNAME_LENGTH', 50); // 50 Characters

	/*
		Define a character length
		-- This is for the Password
		-- This should not be left blank

	*/

	define('PASSWORD_LENGTH', 20); // More than 20 characters long

	/*
		Define PASSWORD Regex.
		This can be altered depending on the level of security
	*/

	define('PASSWORD_REGEX', '#[A-Z]+#');

	/*
		Define PASSWORD Regex.
	*/

	include('Connect.php');

	class User {

		protected $username;
		protected $password;
		protected $email;
		protected $contactNum = array();
		protected $error = array();

		public function __construct()
		{
			if(!defined('ERRORS'))
			  exit("You have not defined the error management");

			if(!class_exists("Connect"))
			  exit("You have not defined the class: Connect");

			$conn = $conn = new Connect();

			/*
				VALIDATE ALL OF THE USERS DETAILS
				NOTE: If you do not want to validate
				certain details..

			*/

			$this->username = $this->_validateUsername($theUsername);
			$this->password = $this->_validatePassword($thePassword);
			$this->email = $this->_validateEmail($theEmail);
			$this->contactNum = $this->_validateContact($theContactNum);

		}

		public function _validateUsername($theUsername)
		{
			if(empty($theUsername))
			{
				$this->error[] = 'Please enter your email address';
				return 0;
			}

			// Check that username length
			if(strlen($theUsername) > USERNAME_LENGTH)
			{
				$this->error[] = 'Username is too long';
				return 0;
			}

			if(!preg_match('/^[a-zA-Z0-9_-]{3,16}$/', $theUsername))
			  $this->error[] = 'Username is not valid';

 	       	return strip_tags($theUsername);

		}

		public function _validatePassword($thePassword)
		{
			if(empty($thePassword))
			{
				$this->error[] = 'Please enter your password';
				return 0;
			}

			if(strlen($thePassword) > PASSWORD_LENGTH)
			{
			   $this->error[] = 'Your password is too short!';
			   return 0;
			}

			if(preg_match(PASSWORD_REGEX, $thePassword))
			{
			  $this->error[] = 'Your password is invalid.';
			  return 0;
			}

			return strip_tags($thePassword);
		}

		public function _validateEmail($theEmail)
		{

			if(!eregi('^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$', $theEmail))
			{
				$this->error[] = 'Invalid Email Address';
				return 0;
			}

			return strip_tags($theEmail);
		}

		public function _validateContact($theContactNum)
		{
		}

		public function _checkErrors()
		{
			if(!empty($this->error))
 	    	{
 	       	  return true;
 	  	  }else{
 	    	return false;
 	  	  }
		}

		public function _getErrors()
		{
			return $this->error;
		}

	};



?>