support txt songs and some "improvement"

src/main/java/land/chipmunk/chayapak/chomens_bot/song/Converter.java

@@ -0,0 +1,7 @@
+package land.chipmunk.chayapak.chomens_bot.song;
+
+import land.chipmunk.chayapak.chomens_bot.Bot;
+
+public interface Converter {
+    Song getSongFromBytes (byte[] bytes, String fileName, Bot bot) throws Exception;
+}

src/main/java/land/chipmunk/chayapak/chomens_bot/song/MidiConverter.java

@@ -10,13 +10,14 @@ import java.util.Comparator;
 import java.util.HashMap;
 
 // Author: hhhzzzsss
-public class MidiConverter {
+public class MidiConverter implements Converter {
   public static final int SET_INSTRUMENT = 0xC0;
   public static final int SET_TEMPO = 0x51;
   public static final int NOTE_ON = 0x90;
   public static final int NOTE_OFF = 0x80;
 
-  public static Song getSongFromBytes(byte[] bytes, String name, Bot bot) throws InvalidMidiDataException, IOException {
+  @Override
+  public Song getSongFromBytes(byte[] bytes, String name, Bot bot) throws InvalidMidiDataException, IOException {
     Sequence sequence = MidiSystem.getSequence(new ByteArrayInputStream(bytes));
     return getSong(sequence, name, bot);
   }

src/main/java/land/chipmunk/chayapak/chomens_bot/song/NBSConverter.java

@@ -9,7 +9,7 @@ import java.nio.file.Path;
 import java.util.ArrayList;
 
 // Author: hhhzzzsss
-public class NBSConverter {
+public class NBSConverter implements Converter {
   public static final Instrument[] instrumentIndex = new Instrument[] {
     Instrument.HARP,
     Instrument.BASS,
@@ -53,7 +53,8 @@ public class NBSConverter {
     public boolean key = false;
   }
 
-  public static Song getSongFromBytes(byte[] bytes, String fileName, Bot bot) throws IOException {
+  @Override
+  public Song getSongFromBytes(byte[] bytes, String fileName, Bot bot) throws IOException {
     ByteBuffer buffer = ByteBuffer.wrap(bytes);
     buffer.order(ByteOrder.LITTLE_ENDIAN);
 

src/main/java/land/chipmunk/chayapak/chomens_bot/song/Song.java

@@ -17,10 +17,10 @@ public class Song {
   public long time = 0; // Time since start of song
   public long loopPosition = 200; // Milliseconds into the song to start looping
 
-  public final String songName;
-  public final String songAuthor;
-  public final String songOriginalAuthor;
-  public final String songDescription;
+  public String songName;
+  public String songAuthor;
+  public String songOriginalAuthor;
+  public String songDescription;
 
   public final boolean nbs;
 

src/main/java/land/chipmunk/chayapak/chomens_bot/song/SongLoaderRunnable.java

@@ -11,11 +11,22 @@ import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.stream.Stream;
 
 // Author: _ChipMC_ or hhhzzzsss? also i modified it to use runnable
 // because thread = bad !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 public class SongLoaderRunnable implements Runnable {
+  // should the converters be here?
+  public static final List<Converter> converters = new ArrayList<>();
+
+  static {
+    converters.add(new MidiConverter());
+    converters.add(new NBSConverter());
+    converters.add(new TextFileConverter());
+  }
+
   public final String fileName;
 
   private Path songPath;
@@ -83,18 +94,12 @@ public class SongLoaderRunnable implements Runnable {
       return;
     }
 
-    try {
-      song = MidiConverter.getSongFromBytes(bytes, name, bot);
-    } catch (Exception e) {
-      e.printStackTrace();
-    }
+    for (Converter converter : converters) {
+      if (song != null) break;
 
-    if (song == null) {
       try {
-        song = NBSConverter.getSongFromBytes(bytes, name, bot);
-      } catch (Exception e) {
-        e.printStackTrace();
-      }
+        song = converter.getSongFromBytes(bytes, name, bot);
+      } catch (Exception ignored) {}
     }
 
     if (song == null) {

src/main/java/land/chipmunk/chayapak/chomens_bot/song/TextFileConverter.java

@@ -0,0 +1,54 @@
+package land.chipmunk.chayapak.chomens_bot.song;
+
+import land.chipmunk.chayapak.chomens_bot.Bot;
+
+import java.util.Arrays;
+
+public class TextFileConverter implements Converter {
+    @Override
+    public Song getSongFromBytes(byte[] bytes, String fileName, Bot bot) {
+        final String data = new String(bytes);
+
+        if (!data.contains(":")) return null;
+
+        int length = 0;
+
+        final Song song = new Song(fileName, bot, null, null, null, null, false);
+
+        for (String line : data.split("\r\n|\r|\n")) {
+            if (line.isEmpty()) continue;
+
+            // worst way to implement this but it works lol
+            if (line.startsWith("title:")) {
+                song.songName = line.substring("title:".length());
+                continue;
+            } else if (line.startsWith("author:")) {
+                song.songAuthor = line.substring("author:".length());
+                continue;
+            } else if (line.startsWith("originalAuthor:")) {
+                song.songOriginalAuthor = line.substring("originalAuthor:".length());
+                continue;
+            } else if (line.startsWith("description:")) {
+                song.songDescription = line.substring("description:".length());
+                continue;
+            }
+
+
+            final Integer[] mapped = Arrays.stream(line.split(":")).map(Integer::parseInt).toArray(Integer[]::new);
+
+            final int tick = mapped[0];
+            final int pitch = mapped[1];
+            final int instrument = mapped[2];
+
+            final int time = tick * 50;
+
+            length = Math.max(length, time);
+
+            song.add(new Note(Instrument.fromId(instrument), pitch, 1, time, -1, 100));
+        }
+
+        song.length = song.get(song.size() - 1).time + 50;
+
+        return song;
+    }
+}