mmouih

<?php

namespace App\Handler;

use App\Payload\PayloadInterface;

interface HandlerInterface
{
    public function handle(PayloadInterface $payload);
}

mmouih

<?php

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;

arch('controllers must has "Controller" as suffix')
    ->expect('App\Controller')
    ->toHaveSuffix('Controller');

arch(sprintf('constroller must extends %s', AbstractController::class))
    ->expect('App\Controller')

mmouih

<?php

arch('Do not forget dumps in your production code')
    ->expect(['dd', 'dump', 'exit', 'die', 'print_r', 'var_dump', 'echo', 'print'])
    ->not
    ->toBeUsed();

mmouih

<?php

use App\Handler\CreateOrUpdateUserHandler;
use App\Handler\HandlerInterface;

arch(sprintf('CreateOrUpdateUserHandler must implement %s', HandlerInterface::class))
->expect(CreateOrUpdateUserHandler::class)
->toImplement(HandlerInterface::class);

arch('handlers must be final')

mmouih

<?php

use App\Payload\PayloadInterface;

arch('Payloads should be readonly')
    ->expect('App\Payload')
    ->classes()
    ->toBeReadonly();

arch('Payloads must implement ' . PayloadInterface::class)

mmouih

<?php

namespace App\Payload;

use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Validator\Constraints\Length;
use Symfony\Component\Validator\Constraints\Type;

readonly class User implements PayloadInterface
{

mmouih

Consider the following business requirements:

1. Loyalty Discount:

   • Condition: The system should provide a loyalty discount based on the client's loyalty tier.
   • Requirement: Clients with a "Gold" loyalty tier should receive a 10% discount, and clients with a "Silver" loyalty tier should receive a 5% discount.

2. Purchase History Discount:

   • Condition: The system should offer an additional discount based on the client's purchase history.
   • Requirement: Clients with a purchase history greater than 5 should receive an extra 8% discount.

mmouih

<?php

namespace App\Service;

use App\Entity\Client;
use Service\TransactionService;

class PaymentService
{
    public function __construct(private TransactionService $transactionService)

mmouih

<?php

namespace App\Service;

use App\Entity\Client;
use App\Entity\LoyaltyTier;
use App\Entity\Subscription;
use Service\TransactionService;

class PaymentService

mmouih

<?php

namespace App\Domain\Payment;

use App\Entity\Client;

interface PaymentProcessor
{
    public function handle(float $amount, Client $client): float;
}