Initial commit

packages/media/src/application/use-cases/delete-media.use-case.ts

@@ -0,0 +1,23 @@
+import { z } from "zod";
+
+import { MediaNotFoundError } from "../../entities/errors/media";
+import type { IMediaRepository } from "../repositories/media.repository.interface";
+
+// ── Input ────────────────────────────────────────────────────────────────
+export const deleteMediaInputSchema = z.object({ id: z.string().min(1) }).strict();
+export type DeleteMediaInput = z.infer<typeof deleteMediaInputSchema>;
+
+// No output schema — use case returns void.
+
+// ── Use case ─────────────────────────────────────────────────────────────
+export type IDeleteMediaUseCase = ReturnType<typeof deleteMediaUseCase>;
+
+export const deleteMediaUseCase =
+  (mediaRepository: IMediaRepository) =>
+  async (input: DeleteMediaInput): Promise<void> => {
+    const existing = await mediaRepository.getMedia(input.id);
+    if (!existing) {
+      throw new MediaNotFoundError(`Media with id "${input.id}" not found`);
+    }
+    await mediaRepository.deleteMedia(input.id);
+  };