class authDelete {
        public function __construct(){

           $this->user_reg = mysql_real_escape_string(filter_input(INPUT_POST, 'user', FILTER_SANITIZE_SPECIAL_CHARS));
           $this->pass_reg = mysql_real_escape_string(filter_input(INPUT_POST, 'pass', FILTER_SANITIZE_SPECIAL_CHARS));

           $this->user_del = hex2bin(mysql_real_escape_string(filter_input(INPUT_POST, 'usr_del', FILTER_SANITIZE_SPECIAL_CHARS)));
           $this->pwd_del = hex2bin(mysql_real_escape_string(filter_input(INPUT_POST, 'pwd_del', FILTER_SANITIZE_SPECIAL_CHARS)));
           $this->mysql_host = "localhost";
           $this->mysql_usr = "root";
           $this->mysql_pwd = "";
           $this->mysql_db = "users";

           $this->error_mysql_connect = '<div class="alert alert-success animated fadeIn" style="border-radius: 0%; margin: auto; margin-top: 100px; width: 360px; height: 50px; text-align: center;" role="alert"> <span class="sr-only">Erfolgreich:</span> MySQL-Verbindung fehlgeschlagen. </div>';
           $this->error_mysql_database = '<div class="alert alert-success animated fadeIn" style="border-radius: 0%; margin: auto; margin-top: 100px; width: 367px; height: 50px; text-align: center;" role="alert"> <span class="sr-only">Erfolgreich:</span> MySQL-Datenbankverbindung fehlgeschlagen.</div>';
           $this->error_mysql_row_delete = ' <div id="err-warn" class="alert alert-danger animated wow fadeOutDown" data-wow-delay="5.3s" role="alert"> <span class="sr-only">Error:</span> Benutzer existiert bereits. </div>';
           $this->success_mysql_row_delete = '<div id="succ-del" class="alert alert-danger animated wow fadeOutDown" data-wow-delay="5.3s" role="alert"> <span class="sr-only">Erfolg:</span> Benutzer gelöscht. </div>';
           $this->success_mysql_row_insert = '<div id="succ-del" class="alert alert-danger animated wow fadeOutDown" data-wow-delay="5.3s" role="alert"> <span class="sr-only">Erfolg:</span> Benutzer hinzugefügt. </div>';
            echo $this->success_mysql_row_insert;
        }
        public function authCheck(){
            if(strlen($this->user_reg) > 20){
                exit();
            }
        }
        public function authConnect (){
            $this->mysql_connection = mysql_connect($this->mysql_host, $this->mysql_usr, $this->mysql_pwd) or die ($this->error_mysql_connect);
            $this->mysql_db =  mysql_select_db($this->mysql_db) or die ($this->error_mysql_database);
        }

        public function authDelete (){
            $this->sql_1_query = mysql_query("SELECT * FROM login");
            $sql_1 = "DELETE FROM login WHERE username = '$this->user_del' AND password = '$this->pwd_del'";
            if($this->sql_1_query = mysql_query($sql_1)){
                echo '<meta http-equiv="refresh" content="0; URL=">';
            }

        }
    }

    class authRegister extends authDelete {
        public function checkExist(){
            $this->query_check = mysql_query("SELECT * FROM login WHERE username='".$this->user_reg."'");
            if(!mysql_num_rows($this->query_check) == 0){
                echo $this->error_mysql_row_delete;
                exit;
            }
            else{
                echo $this->success_mysql_row_delete;
            }
        }
        public function registerUser(){
            $this->query_reg = mysql_query("INSERT INTO login (username,password) VALUES('$this->user_reg','$this->pass_reg')");
            if(!$this->query_reg){
                echo $this->mysql_error_register;
            }
            else{
                echo '<meta http-equiv="refresh" content="0; URL=#insert-del">';
            }
        }
    }



    if(isset($_POST['submit-del'])){
        $authDelete = new authDelete;
        $authDelete->authCheck();
        $authDelete->authDelete();
        $authDelete->authConnect();
    }
    elseif(isset($_POST['submit'])){
        $authRegister = new authRegister;
        $authRegister->checkExist();
        $authRegister->registerUser();
    }
    else{
        exit;
    }
include('logging.php');