Handle playlist fetching signalling better

src/player/player.rs

@@ -55,7 +55,7 @@ impl Player {
                 PlayerEvent::FFTBins(bins) => self.tui_root.metadata.update_spectrogram(bins),
             }
         }
-        if self.playlist.last_song() {
+        if self.playlist.last_song() && !self.playlist.fetch_queued {
             self.api_chan.send(APIEvent::FetchRandom)?;
         }
         Ok(())

src/player/playlist.rs

@@ -4,6 +4,7 @@ use crate::ssonic::response::Song;
 
 pub struct Playlist {
     song_list: VecDeque<Song>,
+    pub fetch_queued: bool,
 }
 
 impl Playlist {
@@ -17,11 +18,13 @@ impl Playlist {
 
     pub fn append(&mut self, list: Vec<Song>) {
         self.song_list.append(VecDeque::from(list).borrow_mut());
+        self.fetch_queued = false;
     }
 
     pub fn new() -> Playlist {
         Playlist {
             song_list: VecDeque::new(),
+            fetch_queued: true, // handle initial fetch outside this struct
         }
     }
 }