<?php

interface RoleCommand
{

    public function getRole();
}

class AddRoleCommand implements RoleCommand
{
    public function getRole()
    {
        return 'ROLE_ADMIN';
    }
}


interface UserCommand
{

    public function getUsername();
}


class AddUserCommand implements UserCommand
{
    private $name;

    public function __construct($name)
    {
        $this->name = $name;

    }
   public function getUsername()
   {
     return $this->name;
   }
}

class EditUserCommand implements UserCommand
{
    private $name;

    public function __construct($name)
    {
        $this->name = $name;

    }
   public function getUsername()
   {
     return $this->name;
   }
}


interface UserCommandHandler
{
    public function handle(UserCommand $command);
}



class NewUserCommandHandler implements UserCommandHandler
{

   public function handle(UserCommand $command)
   {
       $username = $command->getUsername();

       var_dump($username);
   }
}


class Testowy implements RoleCommand, UserCommand
{
    private $name;

    public function __construct($name)
    {
        $this->name = $name;

    }
   public function getUsername()
   {
     return $this->name;
   }


    public function getRole()
    {
        return 'ROLE_ADMIN';
    }
}


$userCommand = new AddUserCommand('Damian');
$roleCommand = new AddRoleCommand();
$editUserCommand = new EditUserCommand('Rysiek');

$testowyCommnd = new Testowy("tadzio");

$handler = new NewUserCommandHandler;

$handler->handle($roleCommand);
echo "<br/>";
$handler->handle($userCommand);
echo "<br/>";
$handler->handle($editUserCommand);
echo "<br/>";
$handler->handle($testowyCommnd);
?>