fix: accept empty music continuations

cli/src/main.rs

@@ -588,10 +588,20 @@ async fn main() {
                 }
                 UrlTarget::Playlist { id } => {
                     if music {
-                        let playlist = rp.query().music_playlist(&id).await.unwrap();
+                        let mut playlist = rp.query().music_playlist(&id).await.unwrap();
+                        playlist
+                            .tracks
+                            .extend_limit(rp.query(), limit)
+                            .await
+                            .unwrap();
                         print_data(&playlist, format, pretty);
                     } else {
-                        let playlist = rp.query().playlist(&id).await.unwrap();
+                        let mut playlist = rp.query().playlist(&id).await.unwrap();
+                        playlist
+                            .videos
+                            .extend_limit(rp.query(), limit)
+                            .await
+                            .unwrap();
                         print_data(&playlist, format, pretty);
                     }
                 }

src/client/pagination.rs

@@ -136,11 +136,11 @@ impl MapResponse<Paginator<MusicItem>> for response::MusicContinuation {
         let mut continuations = Vec::new();
 
         match self.continuation_contents {
-            response::music_item::ContinuationContents::MusicShelfContinuation(mut shelf) => {
+            Some(response::music_item::ContinuationContents::MusicShelfContinuation(mut shelf)) => {
                 mapper.map_response(shelf.contents);
                 continuations.append(&mut shelf.continuations);
             }
-            response::music_item::ContinuationContents::SectionListContinuation(contents) => {
+            Some(response::music_item::ContinuationContents::SectionListContinuation(contents)) => {
                 for c in contents.contents {
                     match c {
                         response::music_item::ItemSection::MusicShelfRenderer(mut shelf) => {
@@ -154,7 +154,9 @@ impl MapResponse<Paginator<MusicItem>> for response::MusicContinuation {
                     }
                 }
             }
-            response::music_item::ContinuationContents::PlaylistPanelContinuation(mut panel) => {
+            Some(response::music_item::ContinuationContents::PlaylistPanelContinuation(
+                mut panel,
+            )) => {
                 continuations.append(&mut panel.continuations);
                 mapper.add_warnings(&mut panel.contents.warnings);
                 panel.contents.c.into_iter().for_each(|item| {
@@ -163,6 +165,7 @@ impl MapResponse<Paginator<MusicItem>> for response::MusicContinuation {
                     }
                 });
             }
+            None => {}
         }
 
         let map_res = mapper.items();

src/client/response/music_item.rs

@@ -298,7 +298,7 @@ impl From<MusicThumbnailRenderer> for Vec<model::Thumbnail> {
 #[derive(Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub(crate) struct MusicContinuation {
-    pub continuation_contents: ContinuationContents,
+    pub continuation_contents: Option<ContinuationContents>,
 }
 
 #[derive(Debug, Deserialize)]