import { Module } from '@nestjs/common';

import { ProductsModule } from '@/modules/products/products.module';

import { PostgresSearchProvider } from './postgres-search.provider';
import { SearchIndexSubscriber } from './search-index.subscriber';
import { SearchIndexerService } from './search-indexer.service';
import { SearchController } from './search.controller';
import { SEARCH_PROVIDER } from './search.provider';
import { SearchService } from './search.service';

/**
 * SearchModule — owns `search_documents`, a pure projection of the catalog.
 *
 * The projection can be rebuilt from scratch at any moment, which is what makes
 * losing it survivable and makes this module a genuine EXTRACTION CANDIDATE:
 * nothing else reads its table, and it returns ids rather than product payloads
 * so it never learns what a product looks like.
 *
 * `SEARCH_PROVIDER` is the seam from ADR-0012 — swapping PostgreSQL for
 * OpenSearch replaces one binding here.
 */
@Module({
  imports: [ProductsModule],
  controllers: [SearchController],
  providers: [
    SearchService,
    SearchIndexerService,
    SearchIndexSubscriber,
    PostgresSearchProvider,
    { provide: SEARCH_PROVIDER, useExisting: PostgresSearchProvider },
  ],
  exports: [SearchService, SearchIndexerService],
})
export class SearchModule {}