From 6affbe82b73746df89537193bd9b514afc13110a Mon Sep 17 00:00:00 2001
From: Borewit <Borewit@users.noreply.github.com>
Date: Mon, 25 Sep 2023 19:41:48 +0200
Subject: [PATCH] Remove the "ancient PC" optimization

---
 .../model/playlists/PlaylistEntry.java        | 54 ++++++-------------
 1 file changed, 16 insertions(+), 38 deletions(-)

diff --git a/src/main/java/listfix/model/playlists/PlaylistEntry.java b/src/main/java/listfix/model/playlists/PlaylistEntry.java
index 9ae07106..1578614c 100644
--- a/src/main/java/listfix/model/playlists/PlaylistEntry.java
+++ b/src/main/java/listfix/model/playlists/PlaylistEntry.java
@@ -17,6 +17,7 @@
 import java.util.List;
 import java.util.Objects;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 
 public abstract class PlaylistEntry implements Cloneable
 {
@@ -103,49 +104,26 @@ public void setFixed(boolean fixed)
 
   public List<PotentialPlaylistEntryMatch> findClosestMatches(Collection<String> mediaFiles, IProgressObserver<String> observer, IPlaylistOptions playListOptions)
   {
-    List<PotentialPlaylistEntryMatch> matches = new ArrayList<>();
     ProgressAdapter<String> progress = new ProgressAdapter<>(observer);
     progress.setTotal(mediaFiles.size());
 
     // Remove apostrophes and addAt spaces between lowercase and capital letters so we can tokenize by camel case.
     String entryName = CAMEL_CASE_PATTERN.matcher(APOS_PATTERN.matcher(getTrackFileName()).replaceAll("")).replaceAll("$2 $3").toLowerCase();
-    File mediaFile;
-    int score;
-    for (String mediaFilePath : mediaFiles)
-    {
-      if (observer == null || !observer.getCancelled())
-      {
-        progress.stepCompleted();
-
-        mediaFile = new File(mediaFilePath);
-
-        // Remove apostrophes and addAt spaces between lowercase and capital letters so we can tokenize by camel case.
-        score = new FileNameTokenizer(playListOptions).score(entryName, CAMEL_CASE_PATTERN.matcher(APOS_PATTERN.matcher(mediaFile.getName()).replaceAll("")).replaceAll("$2 $3").toLowerCase());
-        if (score > 0)
-        {
-          // Only keep the top X highest-rated matches (default is 20), anything more than that has a good chance of using too much memory
-          // on systems w/ huge media libraries, too little RAM, or when fixing excessively large playlists (the things you have to worry
-          // about when people run your software on ancient PCs in Africa =])
-          if (matches.size() < playListOptions.getMaxClosestResults())
-          {
-            matches.add(new PotentialPlaylistEntryMatch(mediaFile.toPath(), score));
-          }
-          else
-          {
-            if (matches.get(playListOptions.getMaxClosestResults() - 1).getScore() < score)
-            {
-              matches.set(playListOptions.getMaxClosestResults() - 1, new PotentialPlaylistEntryMatch(mediaFile.toPath(), score));
-            }
-          }
-          matches.sort(new MatchedPlaylistEntryComparator());
-        }
-      }
-      else
-      {
-        return null;
-      }
-    }
-    return matches;
+
+    return mediaFiles.stream().map(mediaFilePath -> {
+
+      if (observer == null || !observer.getCancelled()) return null;
+
+      progress.stepCompleted();
+
+      final File mediaFile = new File(mediaFilePath);
+      final int score = new FileNameTokenizer(playListOptions).score(entryName, CAMEL_CASE_PATTERN.matcher(APOS_PATTERN.matcher(mediaFile.getName()).replaceAll("")).replaceAll("$2 $3").toLowerCase());
+
+      return new PotentialPlaylistEntryMatch(mediaFile.toPath(), score);
+    }).filter(Objects::nonNull)
+      .sorted(new MatchedPlaylistEntryComparator())
+      .limit(playListOptions.getMaxClosestResults())
+      .collect(Collectors.toList());
   }
 
   @Override