<?php

class userLogin{

    protected $userDetails;

    public static function staticUserLogin(array $userDetails = NULL){
        if($userDetails === NULL){
        $session = new userSession();
        return $session->output;
        }
        elseif(isset($userDetails['userName']) && isset($userDetails['userPassword'])){
        $logMeIn = new userLogin();
        return $logMeIn->setUserDetails($userDetails);
        }
    }

    protected function setUserDetails($userDetails){
        $this->userDetails = $userDetails;
        return $this->checkLogin();
    }

    public function checkLogin(){
        $user="cwells";
        $pass="test";
        //check user login using userSession class if true
        //show page. If false return false
        $session = new userSession();
        if($this->userDetails['userName'] == $user && $this->userDetails['userPassword'] == $pass){
            return $session->setUserSession($this->userDetails['userName']);
        }
        else{
        return CREDENTIALS_INCORRECT;
        }
    }

    private function registerUser(){

        //echo the form

    }

}

class userUpdates extends userLogin{

    protected function __construct(){

    }

    protected function userChangePassword(){

    }

    protected function userChangeEmail(){

    }

}

class userSession{

    public $output;

    public function __construct(){
        if(!isset($_SESSION['userLogin']) && !isset($_SESSION['userName'])){
            $this->showLoginForm();
        }
        else{
            $this->checkLogin();
        }
        return $this->output;
    }

    private function checkLogin(){
    if($_SESSION['userLogin'] == true && mktime() - $_SESSION['userToken'] < 60){
        $this->output = LOGGED_IN;
    }
    }

    public function setUserSession($userName){
        $_SESSION['userToken'] = mktime();
        $_SESSION['userName'] = $userName;
        $_SESSION['userLogin'] = true;
        $this->checkLogin();
        return $this->output;
    }

    public function destroySession(){

    }

    public function showLoginForm(){
        $form  = '<h2 class="login">Login</h2>';
        $form .= '<form method="GET" action="login.php" name="login">';
        $form .= '<input type="text" name="userName" value="Username" class="login">';
        $form .= '<span class="spacer"></span>';
        $form .= '<input type="password" name="userPassword" value="Password" class="login">';
        $form .= '<span class="spacer"></span>';
        $form .= '<div id="lowerLogin">';
        $form .= '<a class="topNavMenu" href="register.php">Register</a></div>';
        $form .= '<input type="submit" name="loginSubmit" value="Login" class="button">';
        $form .= '</form>';
        $this->output = $form;

    }
}