feat(revisions): add revisions microservice

packages/revisions/src/Infra/MySQL/MySQLRevisionRepository.ts

@@ -0,0 +1,34 @@
+import { MapperInterface, RevisionMetadata, Uuid } from '@standardnotes/domain-core'
+import { Repository } from 'typeorm'
+
+import { RevisionRepositoryInterface } from '../../Domain/Revision/RevisionRepositoryInterface'
+import { TypeORMRevision } from '../TypeORM/TypeORMRevision'
+
+export class MySQLRevisionRepository implements RevisionRepositoryInterface {
+  constructor(
+    private ormRepository: Repository<TypeORMRevision>,
+    private revisionMapper: MapperInterface<RevisionMetadata, TypeORMRevision>,
+  ) {}
+
+  async findMetadataByItemId(itemUuid: Uuid): Promise<Array<RevisionMetadata>> {
+    const queryBuilder = this.ormRepository
+      .createQueryBuilder()
+      .select('uuid', 'uuid')
+      .addSelect('content_type', 'contentType')
+      .addSelect('created_at', 'createdAt')
+      .addSelect('updated_at', 'updatedAt')
+      .where('item_uuid = :item_uuid', {
+        item_uuid: itemUuid,
+      })
+      .orderBy('created_at', 'DESC')
+
+    const simplifiedRevisions = await queryBuilder.getMany()
+
+    const metadata = []
+    for (const simplifiedRevision of simplifiedRevisions) {
+      metadata.push(this.revisionMapper.toDomain(simplifiedRevision))
+    }
+
+    return metadata
+  }
+}