refactor to ddh, first commit

old/modules/health/domain/interfaces/check-repository.interface.ts

@@ -0,0 +1,3 @@
+export interface ICheckRepository {
+  healthCheck(): Promise<boolean>;
+}

old/modules/health/domain/usecases/repositories.health-indicator.usecase.ts

@@ -0,0 +1,33 @@
+import { Injectable } from '@nestjs/common';
+import {
+  HealthCheckError,
+  HealthIndicator,
+  HealthIndicatorResult,
+} from '@nestjs/terminus';
+import { ICheckRepository } from '../interfaces/check-repository.interface';
+import { AdRepository } from '../../../ad/adapters/secondaries/ad.repository';
+
+@Injectable()
+export class RepositoriesHealthIndicatorUseCase extends HealthIndicator {
+  private checkRepositories: ICheckRepository[];
+  constructor(private readonly adRepository: AdRepository) {
+    super();
+    this.checkRepositories = [adRepository];
+  }
+  isHealthy = async (key: string): Promise<HealthIndicatorResult> => {
+    try {
+      await Promise.all(
+        this.checkRepositories.map(
+          async (checkRepository: ICheckRepository) => {
+            await checkRepository.healthCheck();
+          },
+        ),
+      );
+      return this.getStatus(key, true);
+    } catch (e: any) {
+      throw new HealthCheckError('Repository', {
+        repository: e.message,
+      });
+    }
+  };
+}