v1 feature: added playlists

api/services/ws-service.ts

@@ -1,4 +1,4 @@
-import type { Dump, OnlineUser } from "../model/interfaces.ts";
+import type { Dump, OnlineUser, Playlist } from "../model/interfaces.ts";
 
 export interface WsClient {
   socket: WebSocket;
@@ -82,9 +82,50 @@ export function broadcastVoteUpdate(
   }
 }
 
+function sendToPlaylistAudience(
+  playlist: Pick<Playlist, "isPublic" | "userId">,
+  data: unknown,
+): void {
+  for (const client of clients) {
+    if (playlist.isPublic || client.userId === playlist.userId) {
+      send(client.socket, data);
+    }
+  }
+}
+
+export function broadcastPlaylistCreated(playlist: Playlist): void {
+  sendToPlaylistAudience(playlist, { type: "playlist_created", playlist });
+}
+
+export function broadcastPlaylistUpdated(playlist: Playlist): void {
+  sendToPlaylistAudience(playlist, { type: "playlist_updated", playlist });
+}
+
+export function broadcastPlaylistDeleted(
+  playlistId: string,
+  userId: string,
+  isPublic: boolean,
+): void {
+  sendToPlaylistAudience({ isPublic, userId }, {
+    type: "playlist_deleted",
+    playlistId,
+    userId,
+  });
+}
+
+export function broadcastPlaylistDumpsUpdated(
+  playlist: Playlist,
+  dumpIds: string[],
+): void {
+  sendToPlaylistAudience(playlist, {
+    type: "playlist_dumps_updated",
+    playlistId: playlist.id,
+    dumpIds,
+  });
+}
+
 // Keepalive: ping all clients every 30s, remove non-responsive ones
 const PING_INTERVAL = 30_000;
-const _PONG_TIMEOUT = 5_000;
 
 setInterval(() => {
   for (const client of clients) {