Change unnecessary usage of Arc to borrow instead

Some basic cleanup of function signatures that took ownership of their
parameters, even though they didn't need ownership. Switching over the
usage of `Arc` to a normal borrow has the added benefit of cleaning up
the code a bit since now a reference can be given instead of having to
clone the values. The other benefit is that a lot of clones aren't
necessary anymore. It's not going to have noticable performance
benefits, but it is still a good thing to have less clones all over the
code.

src/model/playlist.rs

@@ -55,7 +55,7 @@ impl Playlist {
         })
     }
 
-    pub fn delete_track(&mut self, index: usize, spotify: Spotify, library: Arc<Library>) -> bool {
+    pub fn delete_track(&mut self, index: usize, spotify: Spotify, library: &Library) -> bool {
         let track = self.tracks.as_ref().unwrap()[index].clone();
         debug!("deleting track: {} {:?}", index, track);
         match spotify
@@ -74,12 +74,7 @@ impl Playlist {
         }
     }
 
-    pub fn append_tracks(
-        &mut self,
-        new_tracks: &[Playable],
-        spotify: Spotify,
-        library: Arc<Library>,
-    ) {
+    pub fn append_tracks(&mut self, new_tracks: &[Playable], spotify: &Spotify, library: &Library) {
         let mut has_modified = false;
 
         if spotify.api.append_tracks(&self.id, new_tracks, None) {
@@ -175,7 +170,7 @@ impl From<&FullPlaylist> for Playlist {
 }
 
 impl ListItem for Playlist {
-    fn is_playing(&self, queue: Arc<Queue>) -> bool {
+    fn is_playing(&self, queue: &Queue) -> bool {
         if let Some(tracks) = self.tracks.as_ref() {
             let playing: Vec<String> = queue
                 .queue
@@ -191,7 +186,7 @@ impl ListItem for Playlist {
         }
     }
 
-    fn display_left(&self, library: Arc<Library>) -> String {
+    fn display_left(&self, library: &Library) -> String {
         let hide_owners = library.cfg.values().hide_display_names.unwrap_or(false);
         match (self.owner_name.as_ref(), hide_owners) {
             (Some(owner), false) => format!("{} • {}", self.name, owner),
@@ -199,7 +194,7 @@ impl ListItem for Playlist {
         }
     }
 
-    fn display_right(&self, library: Arc<Library>) -> String {
+    fn display_right(&self, library: &Library) -> String {
         let saved = if library.is_saved_playlist(self) {
             if library.cfg.values().use_nerdfont.unwrap_or(false) {
                 "\u{f62b} "
@@ -219,7 +214,7 @@ impl ListItem for Playlist {
         format!("{saved}{num_tracks:>4} tracks")
     }
 
-    fn play(&mut self, queue: Arc<Queue>) {
+    fn play(&mut self, queue: &Queue) {
         self.load_tracks(queue.get_spotify());
 
         if let Some(tracks) = &self.tracks {
@@ -228,7 +223,7 @@ impl ListItem for Playlist {
         }
     }
 
-    fn play_next(&mut self, queue: Arc<Queue>) {
+    fn play_next(&mut self, queue: &Queue) {
         self.load_tracks(queue.get_spotify());
 
         if let Some(tracks) = self.tracks.as_ref() {
@@ -238,7 +233,7 @@ impl ListItem for Playlist {
         }
     }
 
-    fn queue(&mut self, queue: Arc<Queue>) {
+    fn queue(&mut self, queue: &Queue) {
         self.load_tracks(queue.get_spotify());
 
         if let Some(tracks) = self.tracks.as_ref() {
@@ -248,7 +243,7 @@ impl ListItem for Playlist {
         }
     }
 
-    fn toggle_saved(&mut self, library: Arc<Library>) {
+    fn toggle_saved(&mut self, library: &Library) {
         // Don't allow users to unsave their own playlists with one keypress
         if !library.is_followed_playlist(self) {
             return;
@@ -261,11 +256,11 @@ impl ListItem for Playlist {
         }
     }
 
-    fn save(&mut self, library: Arc<Library>) {
+    fn save(&mut self, library: &Library) {
         library.follow_playlist(self);
     }
 
-    fn unsave(&mut self, library: Arc<Library>) {
+    fn unsave(&mut self, library: &Library) {
         library.delete_playlist(&self.id);
     }
 
@@ -324,7 +319,7 @@ impl ListItem for Playlist {
         ))
     }
 
-    fn is_saved(&self, library: Arc<Library>) -> Option<bool> {
+    fn is_saved(&self, library: &Library) -> Option<bool> {
         // save status of personal playlists can't be toggled for safety
         if !library.is_followed_playlist(self) {
             return None;