feat: add files server package

packages/files/src/Domain/UseCase/StreamDownloadFile/StreamDownloadFile.ts

@@ -0,0 +1,39 @@
+import { inject, injectable } from 'inversify'
+import { Logger } from 'winston'
+import TYPES from '../../../Bootstrap/Types'
+import { FileDownloaderInterface } from '../../Services/FileDownloaderInterface'
+import { UseCaseInterface } from '../UseCaseInterface'
+import { StreamDownloadFileDTO } from './StreamDownloadFileDTO'
+import { StreamDownloadFileResponse } from './StreamDownloadFileResponse'
+
+@injectable()
+export class StreamDownloadFile implements UseCaseInterface {
+  constructor(
+    @inject(TYPES.FileDownloader) private fileDownloader: FileDownloaderInterface,
+    @inject(TYPES.Logger) private logger: Logger,
+  ) {}
+
+  async execute(dto: StreamDownloadFileDTO): Promise<StreamDownloadFileResponse> {
+    try {
+      const readStream = this.fileDownloader.createDownloadStream(
+        `${dto.userUuid}/${dto.resourceRemoteIdentifier}`,
+        dto.startRange,
+        dto.endRange,
+      )
+
+      return {
+        success: true,
+        readStream,
+      }
+    } catch (error) {
+      this.logger.error(
+        `Could not create a download stream for resource: ${dto.userUuid}/${dto.resourceRemoteIdentifier}`,
+      )
+
+      return {
+        success: false,
+        message: 'Could not create download stream',
+      }
+    }
+  }
+}