first commit

src/User/UserService.php

@@ -0,0 +1,89 @@
+<?php
+declare(strict_types=1);
+
+namespace App\User;
+
+use App\Shared\Exception\NotFoundException;
+use App\User\Exception\DuplicateEmailException;
+use App\User\Exception\DuplicateUsernameException;
+use App\User\Exception\InvalidRoleException;
+use App\User\Exception\WeakPasswordException;
+
+final class UserService implements UserServiceInterface
+{
+    public function __construct(
+        private readonly UserRepositoryInterface $userRepository,
+    ) {
+    }
+
+    public function findAll(): array
+    {
+        return $this->userRepository->findAll();
+    }
+
+    public function findById(int $id): ?User
+    {
+        return $this->userRepository->findById($id);
+    }
+
+    public function delete(int $id): void
+    {
+        $this->requireExistingUser($id);
+        $this->userRepository->delete($id);
+    }
+
+    public function updateRole(int $id, string $role): void
+    {
+        $this->assertValidRole($role);
+        $this->requireExistingUser($id);
+        $this->userRepository->updateRole($id, $role);
+    }
+
+    public function createUser(string $username, string $email, string $plainPassword, string $role = User::ROLE_USER): User
+    {
+        $username      = mb_strtolower(trim($username));
+        $email         = mb_strtolower(trim($email));
+        $plainPassword = trim($plainPassword);
+
+        $this->assertValidRole($role);
+
+        if ($this->userRepository->findByUsername($username)) {
+            throw new DuplicateUsernameException($username);
+        }
+
+        if ($this->userRepository->findByEmail($email)) {
+            throw new DuplicateEmailException($email);
+        }
+
+        if (mb_strlen($plainPassword) < 8) {
+            throw new WeakPasswordException();
+        }
+
+        $passwordHash = password_hash($plainPassword, PASSWORD_BCRYPT, ['cost' => 12]);
+        $user         = new User(0, $username, $email, $passwordHash, $role);
+
+        $this->userRepository->create($user);
+
+        return $user;
+    }
+
+    private function assertValidRole(string $role): void
+    {
+        $validRoles = [User::ROLE_USER, User::ROLE_EDITOR, User::ROLE_ADMIN];
+
+        if (!in_array($role, $validRoles, true)) {
+            throw new InvalidRoleException($role);
+        }
+    }
+
+    private function requireExistingUser(int $id): User
+    {
+        $user = $this->userRepository->findById($id);
+
+        if ($user === null) {
+            throw new NotFoundException('Utilisateur', $id);
+        }
+
+        return $user;
+    }
+}