Type-safe IaC for Dart.

// infra/lib/app_infra.dart
// A Stack is one Terraform root module of GCP resources, written in Dart.
import 'package:terradart_core/terradart_core.dart';
import 'package:terradart_google/cloud_run.dart';
import 'package:terradart_google/cloud_sql.dart';
import 'package:terradart_google/iam.dart';
import 'package:terradart_google/provider.dart';

final class AppInfraStack extends Stack {
  AppInfraStack({required String projectId})
      : super(providers: [
          GoogleProvider(project: projectId, region: 'asia-northeast1'),
        ]) {
    add(GoogleSqlDatabaseInstance(
      localName: 'app_sql',
      name: TfArg.literal('app-sql'),
      databaseVersion: TfArg.literal(DatabaseVersion.postgres15),
      region: TfArg.literal('asia-northeast1'),
      settings: SqlDatabaseInstanceSettings(
        tier: TfArg.literal('db-f1-micro'),
      ),
    ));

    final runSa = add(GoogleServiceAccount(
      localName: 'run_sa',
      accountId: TfArg.literal('app-run-sa'),
    ));
    add(GoogleProjectIamMember(
      localName: 'run_sa_sql_client',
      project: TfArg.literal(projectId),
      role: TfArg.literal('roles/cloudsql.client'),
      member: TfArg.ref(runSa.iamMember),
    ));

    add(GoogleCloudRunV2Service(
      localName: 'app',
      name: TfArg.literal('app'),
      location: TfArg.literal('asia-northeast1'),
      template: CloudRunV2ServiceTemplate(
        serviceAccount: TfArg.ref(runSa.email),
        containers: [
          CloudRunV2ServiceServiceContainer(
            name: TfArg.literal('app'),
            image: TfArg.literal('gcr.io/cloudrun/hello'),
            ports: CloudRunV2ServiceContainerPort(
              containerPort: TfArg.literal(8080),
            ),
            env: [
              CloudRunV2ServiceEnvVar(
                name: TfArg.literal('DATABASE_URL'),
                source: CloudRunV2ServiceEnvVarFromLiteral(
                  TfArg.literal(
                    'postgresql://app-client@${projectId}.iam@localhost:5432/app',
                  ),
                ),
              ),
            ],
          ),
          CloudRunV2ServiceServiceContainer(
            name: TfArg.literal('cloud-sql-proxy'),
            image: TfArg.literal(
              'gcr.io/cloud-sql-connectors/cloud-sql-proxy:2.18.1',
            ),
            args: TfArg.literal([
              '--port=5432',
              '--auto-iam-authn',
              '${projectId}:asia-northeast1:app-sql',
            ]),
          ),
        ],
      ),
    ));
  }
}