From d48972caa003698f3eb02b7d2b75e7bed86f2de7 Mon Sep 17 00:00:00 2001
From: "Alexander \"Arav\" Andreev" <me@arav.su>
Date: Sun, 12 Mar 2023 21:48:01 +0400
Subject: [PATCH] Okay, now let's return original idea of adding songs one by
 one.

---
 internal/radio/icecast.go | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/internal/radio/icecast.go b/internal/radio/icecast.go
index c6ce53c..9deb94e 100644
--- a/internal/radio/icecast.go
+++ b/internal/radio/icecast.go
@@ -181,10 +181,7 @@ func (pw *PlaylistLogWatcher) Watch(playlistPath string, n int) (err error) {
 
 	pw.watcher.WatchForMask(pw.changed, watcher.ModIgnMask)
 
-	lastPlayedCache, err = icecastLastPlayedSongs(playlistPath, n)
-	if err != nil {
-		return errors.Wrap(err, "cannot instantiate last played cache")
-	}
+	lastPlayedCache = make([]Song, 0, n)
 
 	go func() {
 		for {
@@ -192,8 +189,12 @@ func (pw *PlaylistLogWatcher) Watch(playlistPath string, n int) (err error) {
 			case mask := <-pw.changed:
 				if mask&syscall.IN_MODIFY > 0 {
 					lastPlayedCacheMutex.Lock()
-					if songs, err := icecastLastPlayedSongs(playlistPath, n); err == nil && len(songs) > 0 {
-						lastPlayedCache = songs
+					if songs, err := icecastLastPlayedSongs(playlistPath, 1); err == nil && len(songs) > 0 {
+						if len(lastPlayedCache) == n {
+							lastPlayedCache = append(lastPlayedCache[1:], songs...)
+						} else {
+							lastPlayedCache = append(lastPlayedCache, songs...)
+						}
 					}
 					lastPlayedCacheMutex.Unlock()
 				} else if mask&syscall.IN_IGNORED > 0 {