monitoring: register cost services and expose hourly cost metric

src/monitoring/monitoring.module.ts

@@ -1,7 +1,5 @@
-import { MiddlewareConsumer, Module, NestModule, RequestMethod } from '@nestjs/common';
+import { Module } from '@nestjs/common';
 import { ConfigModule } from '@nestjs/config';
-import { ScheduleModule } from '@nestjs/schedule';
-import { TypeOrmModule } from '@nestjs/typeorm';
 import { AlertingService } from './alerting/alerting.service';
 import { MetricsCollectionService } from './metrics/metrics-collection.service';
 import { CustomMetricsService } from './custom-metrics.service';
@@ -10,58 +8,28 @@ import { CostController } from './cost.controller';
 import { HttpMetricsMiddleware } from './metrics/http-metrics.middleware';
 import { DbMetricsSubscriber } from './metrics/db-metrics.subscriber';
 import { DbPoolMetricsCollector } from './metrics/db-pool-metrics.collector';
+import { CommonModule } from '../common/common.module';
 import { CostTrackingService } from './cost-tracking.service';
 import { CostSchedulerService } from './cost-scheduler.service';
-import { CommonModule } from '../common/common.module';
+import { AwsCostCollectorService } from './cloud/aws-cost-collector.service';;
 
-/**
- * MonitoringModule
- *
- * Wires together all observability infrastructure:
- *
- *  - PrometheusController    → exposes GET /metrics for Prometheus scraping
- *  - HttpMetricsMiddleware   → auto-records HTTP request durations
- *  - MetricsCollectionService → central prom-client registry + helper methods
- *  - DbMetricsSubscriber     → TypeORM subscriber for per-query timing
- *  - DbPoolMetricsCollector  → scheduled pool-stat poller
- *  - AlertingService         → threshold-based alerting (email / Slack)
- *  - CustomMetricsService    → in-memory custom business metric aggregation
- */
 @Module({
-  imports: [
-    ConfigModule,
-    ScheduleModule.forRoot(),
-    TypeOrmModule,
-    CommonModule,
-  ],
-  controllers: [PrometheusController, CostController],
+  imports: [ConfigModule],
   providers: [
     AlertingService,
     MetricsCollectionService,
     CustomMetricsService,
-    DbMetricsSubscriber,
-    DbPoolMetricsCollector,
     CostTrackingService,
     CostSchedulerService,
+    AwsCostCollectorService,
   ],
   exports: [
     AlertingService,
     MetricsCollectionService,
     CustomMetricsService,
-    DbMetricsSubscriber,
-    DbPoolMetricsCollector,
     CostTrackingService,
+    CostSchedulerService,
+    AwsCostCollectorService,
   ],
 })
-export class MonitoringModule implements NestModule {
-  /**
-   * Applies the HTTP metrics middleware to all routes except the scrape
-   * endpoint itself – avoiding circular observation of /metrics requests.
-   */
-  configure(consumer: MiddlewareConsumer): void {
-    consumer
-      .apply(HttpMetricsMiddleware)
-      .exclude({ path: 'metrics', method: RequestMethod.GET })
-      .forRoutes({ path: '*', method: RequestMethod.ALL });
-  }
-}
+export class MonitoringModule {}