determine-proper-strategy-and-let-it-handle-the-task.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\User;
use Illuminate\Support\Facades\Mail;
use App\RegisterUser\Seller;
use App\RegisterUser\Admin;
use App\RegisterUser\Buyer;
use Illuminate\Auth\Access\AuthorizationException;

class UsersController extends Controller
{

    /**
     * handles the registration of new users
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
    	$this->getRegistrationStrategy()->handle($request);
    }

    function getRegistrationStrategy(Request $request)
    {
    	if ($request->role == 'seller') {
    		return new Seller();
    	}

    	if ($request->role == 'buyer') {
    		return new Buyer();
    	}

    	if ($request->role == 'admin') {
    		return new Admin();
    	}
    }

}