Add initial version of PlayList class.

src/main/java/moe/nekojimi/chords/Main.java

@@ -7,6 +7,8 @@ package moe.nekojimi.chords;
 
 import java.io.File;
 import java.net.URL;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 import java.util.*;
 import javax.security.auth.login.LoginException;
 import moe.nekojimi.chords.commands.*;
@@ -16,6 +18,7 @@ import moe.nekojimi.musicsearcher.providers.Searcher;
 import net.dv8tion.jda.api.JDA;
 import net.dv8tion.jda.api.JDABuilder;
 import net.dv8tion.jda.api.entities.*;
+import net.dv8tion.jda.api.events.guild.voice.GuildVoiceLeaveEvent;
 import net.dv8tion.jda.api.events.message.guild.GuildMessageReceivedEvent;
 import net.dv8tion.jda.api.hooks.ListenerAdapter;
 import net.dv8tion.jda.api.managers.AudioManager;
@@ -77,6 +80,7 @@ public class Main extends ListenerAdapter
 
     public Main()
     {
+        log("INFO", "Starting up...");
         downloader = new Downloader();
         downloader.setMessageHandler((Song song, Exception ex) ->
         {
@@ -85,8 +89,10 @@ public class Main extends ListenerAdapter
             if (channel != null)
                 if (ex == null)
                     if (song.getLocation() != null)
+                    {
                         channel.sendMessage(/*bracketNo + */"Finished downloading " + song + " for " + song.getRequestedBy() + ", added to queue!").queue();
-                    else
+                        log("DOWN", "Downloaded " + song);
+                    }                    else
                     {
                         Format format = song.getBestFormat();
                         String formatDetails = "";
@@ -95,9 +101,13 @@ public class Main extends ListenerAdapter
                             formatDetails = " (" + format.getBitrate() / 1000 + "k, " + String.format("%.2f", format.getSize() / (1024.0 * 1024.0)) + "MiB)";
                         }
                         channel.sendMessage(/*bracketNo + */"Now downloading " + song + formatDetails + " for " + song.getRequestedBy() + " ...").queue();
+                        log("DOWN", "Downloading " + song + "...");
                     }
                 else
+                {
                     channel.sendMessage(/*bracketNo + */"Failed to download " + song + " for " + song.getRequestedBy() + "! Reason: " + ex.getMessage()).queue();
+                    log("DOWN", "Failed to download " + song + "! Reason: " + ex.getMessage());
+                }
 
         });
         searcher = MetaSearcher.loadYAML(new File("searchproviders.yml"));
@@ -111,6 +121,8 @@ public class Main extends ListenerAdapter
         addCommand(new SkipCommand(this));
         helpCommand = new HelpCommand(this);
         addCommand(helpCommand);
+
+        log("INFO", "Started OK!");
     }
 
     private void addCommand(Command command)
@@ -123,6 +135,19 @@ public class Main extends ListenerAdapter
         this.jda = jda;
     }
 
+    @Override
+    public void onGuildVoiceLeave(GuildVoiceLeaveEvent event)
+    {
+        if (this.currentVoiceChannel == null)
+            return;
+
+        final VoiceChannel channelLeft = event.getChannelLeft();
+
+        if (channelLeft.getMembers().isEmpty())
+            if (channelLeft == currentVoiceChannel)
+                disconnect();
+    }
+
     @Override
     public void onGuildMessageReceived(GuildMessageReceivedEvent event)
     {
@@ -139,6 +164,8 @@ public class Main extends ListenerAdapter
         if (author.isBot())
             return;
 
+        log("MESG", "G:" + guild.getName() + " A:" + author.getName() + " C:" + content);
+
         try
         {
             String[] split = content.split("\\s+", 2);
@@ -162,6 +189,7 @@ public class Main extends ListenerAdapter
         } catch (Exception ex)
         {
             event.getChannel().sendMessage("Error in command! " + ex.getMessage()).queue();
+            log("UERR", "Command error:" + ex.getMessage());
         }
     }
 
@@ -223,6 +251,11 @@ public class Main extends ListenerAdapter
         }
     }
 
+    public void log(String type, String message)
+    {
+        System.out.println(type + " " + LocalDateTime.now().format(DateTimeFormatter.ISO_DATE_TIME) + "\t" + message);
+    }
+
     public MusicHandler getMusicHandler()
     {
         return musicHandler;

src/main/java/moe/nekojimi/chords/Playlist.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2022 jimj316
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package moe.nekojimi.chords;
+
+import com.amihaiemil.eoyaml.YamlMapping;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ *
+ * @author jimj316
+ */
+public class Playlist
+{
+
+    private final String name;
+    private final List<Song> songs = new ArrayList<>();
+
+    public Playlist(String name)
+    {
+        this.name = name;
+    }
+
+    public YamlMapping toYaml()
+    {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public static Playlist fromYaml(YamlMapping yaml)
+    {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public void addSong(Song song)
+    {
+        song.setKept(true);
+        songs.add(song);
+    }
+
+    public String getName()
+    {
+        return name;
+    }
+
+    public List<Song> getSongs()
+    {
+        return songs;
+    }
+
+}

src/main/java/moe/nekojimi/chords/Song.java

@@ -75,6 +75,11 @@ public class Song
         return song;
     }
 
+    public boolean isDownloaded()
+    {
+        return (location != null && location.exists() && location.canRead());
+    }
+
     public String getTitle()
     {
         return title;
@@ -191,5 +196,4 @@ public class Song
         return formats.get(0);
     }
 
-
 }

src/main/java/moe/nekojimi/chords/commands/JoinCommand.java

@@ -6,11 +6,9 @@
 package moe.nekojimi.chords.commands;
 
 import java.util.List;
+import java.util.Optional;
 import moe.nekojimi.chords.Main;
-import net.dv8tion.jda.api.entities.Guild;
+import net.dv8tion.jda.api.entities.*;
-import net.dv8tion.jda.api.entities.MessageChannel;
-import net.dv8tion.jda.api.entities.TextChannel;
-import net.dv8tion.jda.api.entities.VoiceChannel;
 import net.dv8tion.jda.api.events.message.guild.GuildMessageReceivedEvent;
 
 public class JoinCommand extends Command
@@ -23,11 +21,26 @@ public class JoinCommand extends Command
 
     @Override
     public void call(GuildMessageReceivedEvent event, List<String> args)
+    {
+        TextChannel textChannel = event.getChannel();
+        VoiceChannel channel = null;
+        if (args.isEmpty() || args.get(0).isBlank())
+        {
+            GuildVoiceState voiceState = event.getMember().getVoiceState();
+            if (voiceState != null && voiceState.inVoiceChannel())
+                channel = voiceState.getChannel();
+            else
+            {
+                Guild guild = event.getMessage().getGuild();
+                List<VoiceChannel> voiceChannels = guild.getVoiceChannels();
+                Optional<VoiceChannel> findFirst = voiceChannels.stream().filter((t) -> !t.getMembers().isEmpty()).findFirst();
+                channel = findFirst.orElseThrow(() -> new RuntimeException("Cannot find any voice channels with people in!"));
+            }
+        } else
         {
             String arg0 = args.get(0);
             Guild guild = event.getGuild();
             boolean isNumber = arg0.matches("\\d+"); // This is a regular expression that ensures the input consists of digits
-        VoiceChannel channel = null;
             if (isNumber) // The input is an id?
                 channel = guild.getVoiceChannelById(arg0);
             if (channel == null)                    // Then the input must be a name?
@@ -37,12 +50,13 @@ public class JoinCommand extends Command
                     channel = channels.get(0);      // We found a channel! This cannot be null.
             }
 
-        TextChannel textChannel = event.getChannel();
             if (channel == null)                    // I have no idea what you want mr user
             {
                 onUnknownChannel(textChannel, arg0); // Let the user know about our failure
                 return;
             }
+
+        }
         bot.connectTo(channel);                     // We found a channel to connect to!
         onConnecting(channel, textChannel);     // Let the user know, we were successful!
     }