<?php

define("MODE_GUEST",0);
define("MODE_USER",1);
define("MODE_ADMIN",2);

class User{
    private $id;
    private $email;
    private $haslo;
    private $construct;

    private $nazwa;
    private $opis;
    private $avatar;
    private $mode;

    public function __construct($anonim = true){
        if($anonim == true)
        {
            $this -> id = 0;
            $this -> login = '';
            $this -> password = '';
            $this -> nazwa = 'Anonim';
            $this -> opis = '';
            $this -> avatar = '';
            $this -> mode = MODE_GUEST;
        }
        $this -> construct = true;
    }

    public function isAnonymous()
    {
        return ($this -> id == MODE_GUEST ? true : false);
    }

    public function isAdmin()
    {
        return ($this -> mode == MODE_ADMIN ? true : false);
    }

    public function getId()
    {
        return $this -> id;
    }

    public function getEmail()
    {
        return $this -> email;
    }

    public function getHaslo()
    {
        return $this -> haslo;
    }

    public function getOpis()
    {
        return $this -> opis;
    }

    public function getAvatar()
    {
        return $this -> avatar;
    }

    public function getNazwa()
    {
        return $this -> nazwa;
    }

    public function getMode()
    {
        return $this -> mode;
    }

    public function __set($name, $value)
    {
        global $pdo;
        if($this -> construct)
        {
            $this -> $name = $value;
            $stmt = $pdo -> prepare('UPDATE '.MySql_TPrefix.'users SET
                '.$name.' = :value WHERE id = :id');
            $stmt -> bindValue(':value', $value, PDO::PARAM_STR);
            $stmt -> bindValue(':id', $this->getId(), PDO::PARAM_INT);
            $stmt -> execute();
        }
    }

    static public function Sprawdz($email, $password)
    {
        global $pdo;
        $stmt = $pdo -> prepare('SELECT id, email, nazwa, haslo, opis, avatar, mode FROM '.MySql_TPrefix.'users WHERE email=:email AND haslo=:haslo');
        $stmt -> bindValue(':email', $email, PDO::PARAM_STR);
        $stmt -> bindValue(':haslo', sha1(md5('@TuJestBardzo_').md5($password).md5('_TrudnaSol@')), PDO::PARAM_STR);
        $stmt -> execute();
        $stmt -> setFetchMode(PDO::FETCH_CLASS, 'User', array(0 => false));
        if($user = $stmt -> fetch())
        {
            // Jezeli uzytkownik o takim loginie i hasle
            // istnieje, zwroc jego rekord w postaci obiektu
            $stmt -> closeCursor();
            return $user;
        }
        else
        {
            $stmt -> closeCursor();
            // Bledy w loginie/hasle zglaszamy zerem
            return 0;
        }
    }
    static public function Rejestruj ($email, $password, $nazwa)
    {
        global $pdo;
        $result = User::Sprawdz($email, $password);
        if($result  instanceof user){ return false; }
        $stmt = $pdo -> prepare('INSERT INTO '.MySql_TPrefix.'users (email, haslo, mode, nazwa) VALUES (:email, :haslo, :mode, :nazwa)');
        $stmt -> bindValue(':email', $email, PDO::PARAM_STR);
        $stmt -> bindValue(':haslo', sha1(md5('@TuJestBardzo_').md5($password).md5('_TrudnaSol@')), PDO::PARAM_STR);
        $stmt -> bindValue(':mode', MODE_USER, PDO::PARAM_INT);
        $stmt -> bindValue(':nazwa', $nazwa, PDO::PARAM_STR);
        $ile = $stmt -> execute();
        if($ile > 0)
        {
            return true;
        }
        else
        {
            return false;
        }
    }
}



?>