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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace App\Modules\User\Application\Command; |
| 6 | |
| 7 | use App\Modules\User\Domain\Model\User; |
| 8 | use App\Modules\User\Domain\Repository\UserRepositoryInterface; |
| 9 | |
| 10 | /** |
| 11 | * User Login Command Handler. |
| 12 | * |
| 13 | * Validates user credentials against password hash and returns User entity upon success. |
| 14 | * |
| 15 | * @package App\Modules\User\Application\Command |
| 16 | */ |
| 17 | final readonly class LoginHandler |
| 18 | { |
| 19 | /** |
| 20 | * LoginHandler constructor. |
| 21 | * |
| 22 | * @param UserRepositoryInterface $userRepository User repository contract instance. |
| 23 | */ |
| 24 | public function __construct( |
| 25 | private UserRepositoryInterface $userRepository |
| 26 | ) { |
| 27 | } |
| 28 | |
| 29 | /** |
| 30 | * Handles authentication command and returns User entity if credentials match. |
| 31 | * |
| 32 | * @param LoginCommand $command Login command containing credentials. |
| 33 | * @return User|null Mapped User entity on success, null on authentication failure. |
| 34 | */ |
| 35 | public function handle(LoginCommand $command): ?User |
| 36 | { |
| 37 | $user = $this->userRepository->findByUsernameOrEmail($command->login); |
| 38 | if ($user === null || !$user->isActive()) { |
| 39 | return null; |
| 40 | } |
| 41 | |
| 42 | if (!password_verify($command->password, $user->getPasswordHash())) { |
| 43 | return null; |
| 44 | } |
| 45 | |
| 46 | return $user; |
| 47 | } |
| 48 | } |