Populate a freshly created cache with songs if there are any.

internal/radio/icecast.go

@@ -5,6 +5,7 @@ import (
 	"dwelling-radio/pkg/watcher"
 	"encoding/json"
 	"io"
+	"log"
 	"net/http"
 	"os"
 	"sync"
@@ -129,6 +130,8 @@ func icecastLastPlayedSongs(playlistPath string, n int) ([]Song, error) {
 		return nil, err
 	}
 
+	log.Println(playlistPath, buf)
+
 	lines := bytes.Split(buf, []byte("\n"))
 
 	if len(lines) < 2 {
@@ -185,6 +188,9 @@ func (pw *PlaylistLogWatcher) Watch(playlistPath string, n int) (err error) {
 
 	if lastPlayedCache == nil {
 		lastPlayedCache = make([]Song, 0, n)
+		if songs, err := icecastLastPlayedSongs(playlistPath, n); err == nil && len(songs) > 0 {
+			lastPlayedCache = append(lastPlayedCache, songs...)
+		}
 	}
 
 	go func() {