Initial commit

packages/core-dsr/src/in-memory-data-export.ts

@@ -0,0 +1,24 @@
+import type { IDataExport } from "./data-export.interface";
+import type { DsrFormat, UserDataBundle } from "./dsr-types";
+
+/**
+ * Volatile in-memory IDataExport. Returns an empty bundle with the correct
+ * shape.
+ *
+ * Used in dev-seed and storybook contexts where Payload is unavailable.
+ * Not a recording double — use RecordingDataExport from @repo/core-testing for
+ * call-assertion in unit tests.
+ */
+export class InMemoryDataExport implements IDataExport {
+  async exportSubjectData(
+    subjectId: string,
+    format: DsrFormat,
+  ): Promise<UserDataBundle> {
+    return {
+      subjectId,
+      exportedAt: new Date().toISOString(),
+      format,
+      data: {},
+    };
+  }
+}