feat: adding support for local intros

Adding logic to be able to play local intros before content plays

Signed-off-by: Lance Chant <13349722+lancechant@users.noreply.github.com>

utils/intros.ts

@@ -0,0 +1,28 @@
+import type { Api } from "@jellyfin/sdk";
+import type { BaseItemDto } from "@jellyfin/sdk/lib/generated-client/models";
+import { getUserLibraryApi } from "@jellyfin/sdk/lib/utils/api";
+
+/**
+ * Fetches intro items for a given media item using the Jellyfin SDK
+ * @param api - The Jellyfin API instance
+ * @param itemId - The ID of the media item
+ * @param userId - Optional user ID
+ * @returns Promise<BaseItemDto[]> - Array of intro items
+ */
+export async function getIntros(
+  api: Api,
+  itemId: string,
+  userId?: string,
+): Promise<BaseItemDto[]> {
+  try {
+    const response = await getUserLibraryApi(api).getIntros({
+      itemId,
+      userId,
+    });
+
+    return response.data.Items || [];
+  } catch (error) {
+    console.error("Error fetching intros:", error);
+    return [];
+  }
+}