add postgres user repository

backend/app/User/PostgresUserRepository.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace App\User;
+
+use App\Database\UserModel;
+use App\Shared\ValueObject\EmailAddress;
+
+class PostgresUserRepository implements UserRepository
+{
+    public function create(CreateUserDto $dto): User
+    {
+        $record = UserModel::create([
+            'email' => $dto->email->value(),
+            'password_hash' => $dto->passwordHash,
+        ]);
+
+        return new User(
+            id: $record->id,
+            email: new EmailAddress($record->email),
+            passwordHash: $record->password_hash,
+        );
+    }
+
+    public function findByEmail(EmailAddress $email): ?User
+    {
+        $record = UserModel::where('email', $email->value())->first();
+
+        if ($record === null) {
+            return null;
+        }
+
+        return new User(
+            id: $record->id,
+            email: new EmailAddress($record->email),
+            passwordHash: $record->password_hash,
+        );
+    }
+
+    public function find(int $id): ?User
+    {
+        $record = UserModel::find($id);
+
+        if ($record === null) {
+            return null;
+        }
+
+        return new User(
+            id: $record->id,
+            email: new EmailAddress($record->email),
+            passwordHash: $record->password_hash,
+        );
+    }
+}

backend/config/container.php

@@ -11,8 +11,9 @@ use App\Auth\UseCases\CreateSession\CreateSession;
 use App\Auth\UseCases\Logout\Logout;
 use App\Controllers\AuthController;
 use App\Middleware\AuthMiddleware;
+use App\User\PostgresUserRepository;
+use App\User\UserRepository;
 use DI\ContainerBuilder;
-use Psr\Container\ContainerInterface;
 
 $builder = new ContainerBuilder();
 
@@ -23,6 +24,9 @@ $builder->addDefinitions([
     TokenGenerator::class => DI\create(RandomTokenGenerator::class),
     Clock::class => DI\create(SystemClock::class),
 
+    // Repositories
+    UserRepository::class => DI\create(PostgresUserRepository::class),
+
     // Use cases
     AuthenticateUser::class => DI\autowire(),
     CreateSession::class => DI\autowire(),