feat(playlists): reorder tracks

src/library.rs

@@ -8,14 +8,14 @@ use walkdir::{DirEntry, WalkDir};
 use crate::{
     checksum::generate_hash,
     database::tracks::{
-        add_track_to_playlist, create_playlist, delete_playlist, get_playlists, get_tracks,
-        insert_tracks, remove_track_from_playlist,
+        add_track_to_playlist, create_playlist, delete_playlist, get_playlist, get_playlists,
+        get_tracks, insert_tracks, remove_track_from_playlist, swap_playlist_tracks,
     },
     music::metadata::{extract_track_data, TrackMetadata},
     proto::library::{
         library_server::Library, AddTrackToPlaylistRequest, CreatePlaylistRequest,
         CreatePlaylistResponse, DeletePlaylistRequest, ListPlaylistsResponse,
-        RemoveTrackFromPlaylistRequest, Track, TrackList,
+        RemoveTrackFromPlaylistRequest, SwapTracksRequest, Track, TrackList,
     },
     state::GrooveState,
 };
@@ -139,6 +139,33 @@ impl Library for LibraryService {
 
         Ok(Response::new(()))
     }
+
+    async fn swap_tracks(
+        &self,
+        request: Request<SwapTracksRequest>,
+    ) -> Result<Response<TrackList>, Status> {
+        let input = request.get_ref();
+
+        let Ok(success) =
+            swap_playlist_tracks(&self.pool, input.playlist_id, input.a_rank, input.b_rank).await
+        else {
+            return Err(Status::internal(""));
+        };
+
+        if !success {
+            return Err(Status::internal(""));
+        }
+
+        let Ok(playlist) = get_playlist(&self.pool, input.playlist_id).await else {
+            return Err(Status::internal(""));
+        };
+
+        let response = TrackList {
+            tracks: playlist.tracks,
+        };
+
+        Ok(Response::new(response))
+    }
 }
 
 pub async fn index_path(path: PathBuf, db: &Pool, path_id: u64) -> Result<(), rusqlite::Error> {