Add feature flag for buffered scrobbling

conf/configuration.go

@@ -70,6 +70,7 @@ type configOptions struct {
 	DevOldCacheLayout          bool
 	DevActivityPanel           bool
 	DevEnableShare             bool
+	DevEnableBufferedScrobble  bool
 }
 
 type scannerOptions struct {
@@ -229,6 +230,7 @@ func init() {
 	viper.SetDefault("devfastaccesscoverart", false)
 	viper.SetDefault("devactivitypanel", true)
 	viper.SetDefault("devenableshare", false)
+	viper.SetDefault("devenablebufferedscrobble", false)
 }
 
 func InitConfig(cfgFile string) {

core/scrobbler/play_tracker.go

@@ -5,6 +5,8 @@ import (
 	"sort"
 	"time"
 
+	"github.com/navidrome/navidrome/conf"
+
 	"github.com/ReneKroon/ttlcache/v2"
 	"github.com/navidrome/navidrome/log"
 	"github.com/navidrome/navidrome/model"
@@ -50,7 +52,9 @@ func GetPlayTracker(ds model.DataStore, broker events.Broker) PlayTracker {
 		p.scrobblers = make(map[string]Scrobbler)
 		for name, constructor := range constructors {
 			s := constructor(ds)
-			s = NewBufferedScrobbler(ds, s, name)
+			if conf.Server.DevEnableBufferedScrobble {
+				s = NewBufferedScrobbler(ds, s, name)
+			}
 			p.scrobblers[name] = s
 		}
 		return p

core/scrobbler/play_tracker_test.go

@@ -5,6 +5,8 @@ import (
 	"errors"
 	"time"
 
+	"github.com/navidrome/navidrome/conf"
+
 	"github.com/navidrome/navidrome/model"
 	"github.com/navidrome/navidrome/model/request"
 	"github.com/navidrome/navidrome/server/events"
@@ -23,6 +25,9 @@ var _ = Describe("PlayTracker", func() {
 	var fake fakeScrobbler
 
 	BeforeEach(func() {
+		// Remove buffering to simplify tests
+		conf.Server.DevEnableBufferedScrobble = false
+
 		ctx = context.Background()
 		ctx = request.WithUser(ctx, model.User{ID: "u-1"})
 		ctx = request.WithPlayer(ctx, model.Player{ScrobbleEnabled: true})
@@ -33,13 +38,6 @@ var _ = Describe("PlayTracker", func() {
 		})
 		tracker = GetPlayTracker(ds, events.GetBroker())
 
-		// Remove buffering to simplify tests
-		for i, s := range tracker.(*playTracker).scrobblers {
-			if bs, ok := s.(*bufferedScrobbler); ok {
-				tracker.(*playTracker).scrobblers[i] = bs.wrapped
-			}
-		}
-
 		track = model.MediaFile{
 			ID:          "123",
 			Title:       "Track Title",