use error toasts for errors playing random/similar tracks

backend/playbackmanager.go

@@ -277,14 +277,14 @@ func (p *PlaybackManager) PlayTrackAt(idx int) {
 	p.cmdQueue.PlayTrackAt(idx)
 }
 
-func (p *PlaybackManager) PlayRandomSongs(genreName string) {
+func (p *PlaybackManager) PlayRandomSongs(genreName string) error {
-	p.fetchAndPlayTracks(func() ([]*mediaprovider.Track, error) {
+	return p.fetchAndPlayTracks(func() ([]*mediaprovider.Track, error) {
 		return p.engine.sm.Server.GetRandomTracks(genreName, p.cfg.EnqueueBatchSize)
 	})
 }
 
-func (p *PlaybackManager) PlaySimilarSongs(id string) {
+func (p *PlaybackManager) PlaySimilarSongs(id string) error {
-	p.fetchAndPlayTracks(func() ([]*mediaprovider.Track, error) {
+	return p.fetchAndPlayTracks(func() ([]*mediaprovider.Track, error) {
 		return p.engine.sm.Server.GetSimilarTracks(id, p.cfg.EnqueueBatchSize)
 	})
 }
@@ -298,15 +298,16 @@ func (p *PlaybackManager) PlayRadioStation(station *mediaprovider.RadioStation)
 	p.PlayFromBeginning()
 }
 
-func (p *PlaybackManager) fetchAndPlayTracks(fetchFn func() ([]*mediaprovider.Track, error)) {
+func (p *PlaybackManager) fetchAndPlayTracks(fetchFn func() ([]*mediaprovider.Track, error)) error {
 	if songs, err := fetchFn(); err != nil {
-		log.Printf("error fetching tracks: %s", err.Error())
+		return err
 	} else {
 		p.LoadTracks(songs, Replace, false)
 		if p.engine.replayGainCfg.Mode == ReplayGainAuto {
 			p.SetReplayGainMode(player.ReplayGainTrack)
 		}
 		p.PlayFromBeginning()
+		return nil
 	}
 }
 

res/translations/en.json

@@ -210,6 +210,8 @@
     "Track peak": "Track peak",
     "tracks": "tracks",
     "UI Scaling": "UI Scaling",
+    "Unable to play artist radio": "Unable to play artist radio",
+    "Unable to play random tracks": "Unable to play random tracks",
     "URL": "URL",
     "Use legacy authentication": "Use legacy authentication",
     "Username": "Username",

ui/browsing/artistpage.go

@@ -171,7 +171,13 @@ func (g *ArtistPage) Scroll(scrollAmt float32) {
 }
 
 func (a *ArtistPage) playArtistRadio() {
-	go a.pm.PlaySimilarSongs(a.artistID)
+	go func() {
+		err := a.pm.PlaySimilarSongs(a.artistID)
+		if err != nil {
+			log.Println("error playing similar songs: %v", err)
+			a.contr.ToastProvider.ShowErrorToast(lang.L("Unable to play artist radio"))
+		}
+	}()
 }
 
 func (a *ArtistPage) showAlbumSortMenu() {

ui/browsing/genrepage.go

@@ -1,6 +1,8 @@
 package browsing
 
 import (
+	"log"
+
 	"github.com/dweymouth/supersonic/backend"
 	"github.com/dweymouth/supersonic/backend/mediaprovider"
 	"github.com/dweymouth/supersonic/ui/controller"
@@ -58,7 +60,15 @@ func (g *genrePageAdapter) Route() controller.Route {
 }
 
 func (g *genrePageAdapter) ActionButton() *widget.Button {
-	fn := func() { go g.pm.PlayRandomSongs(g.genre) }
+	fn := func() {
+		go func() {
+			err := g.pm.PlayRandomSongs(g.genre)
+			if err != nil {
+				log.Println("error playing random tracks: %v", err)
+				g.contr.ToastProvider.ShowErrorToast(lang.L("Unable to play random tracks"))
+			}
+		}()
+	}
 	return widget.NewButtonWithIcon(lang.L("Play random"), myTheme.ShuffleIcon, fn)
 }
 

ui/browsing/trackspage.go

@@ -1,6 +1,8 @@
 package browsing
 
 import (
+	"log"
+
 	"github.com/dweymouth/supersonic/backend"
 	"github.com/dweymouth/supersonic/backend/mediaprovider"
 	"github.com/dweymouth/supersonic/sharedutil"
@@ -205,7 +207,13 @@ func (s *tracksPageState) Restore() Page {
 }
 
 func (t *TracksPage) playRandomSongs() {
-	t.contr.App.PlaybackManager.PlayRandomSongs("")
+	go func() {
+		err := t.contr.App.PlaybackManager.PlayRandomSongs("")
+		if err != nil {
+			log.Println("error playing random tracks: %v", err)
+			t.contr.ToastProvider.ShowErrorToast(lang.L("Unable to play random tracks"))
+		}
+	}()
 }
 
 func (t *TracksPage) obtainTracklist() *widgets.Tracklist {