Initial open-source self-hosted Songs2YT edition

lib/jobs/resolve-playlist.ts

@@ -0,0 +1,47 @@
+import type { Plan } from "@prisma/client";
+import { hasProFeatures } from "../edition";
+import type { CreateJobPayload, CreatePlaylistRequest, ItemMetadata } from "../types";
+import { createYouTubePlaylist } from "../youtube/upload";
+
+export function parseCreatePlaylistInput(raw: unknown): CreatePlaylistRequest | null {
+  if (!raw || typeof raw !== "object") return null;
+  const value = raw as Record<string, unknown>;
+  const title = typeof value.title === "string" ? value.title.trim() : "";
+  if (!title) return null;
+
+  const privacy =
+    value.privacy === "public" || value.privacy === "unlisted" || value.privacy === "private"
+      ? value.privacy
+      : undefined;
+
+  return {
+    title,
+    description: typeof value.description === "string" ? value.description : undefined,
+    privacy,
+  };
+}
+
+export async function applyCreatePlaylistToItems(
+  user: { id: string; plan: Plan },
+  items: CreateJobPayload["items"],
+  createPlaylist: CreatePlaylistRequest | null | undefined,
+) {
+  if (!createPlaylist) {
+    return { items, playlist: null as Awaited<ReturnType<typeof createYouTubePlaylist>> | null };
+  }
+
+  if (!hasProFeatures(user.plan)) {
+    throw new Error("Creating a YouTube playlist requires the Pro plan");
+  }
+
+  const playlist = await createYouTubePlaylist(user.id, createPlaylist);
+  const nextItems = items.map((item) => ({
+    ...item,
+    metadata: {
+      ...item.metadata,
+      playlistId: item.metadata.playlistId || playlist.id,
+    } satisfies ItemMetadata,
+  }));
+
+  return { items: nextItems, playlist };
+}