import { DynamicModule, Global, Module, Type } from '@nestjs/common';
import { CqrsModule } from '@nestjs/cqrs';
import { AggregateRehydrator } from './aggregate-rehydrator';
import { EventRecorder } from './event-recorder';

/**
 * Shared building blocks for every bounded context: the event store (from
 * the infrastructure module plugged in by the composition root), the
 * AggregateRehydrator and the EventRecorder.
 */
@Global()
@Module({})
export class SharedModule {
  static withInfrastructure(
    infrastructureModule: Type | DynamicModule,
  ): DynamicModule {
    return {
      module: SharedModule,
      imports: [CqrsModule, infrastructureModule],
      providers: [AggregateRehydrator, EventRecorder],
      exports: [infrastructureModule, AggregateRehydrator, EventRecorder],
    };
  }
}