added debug mode

added debug messages
moved first reaction add code

src/main/java/me/polymarsdev/sokobot/Bot.java

@@ -4,6 +4,7 @@ import me.polymarsdev.sokobot.database.Database;
 import me.polymarsdev.sokobot.listener.CommandListener;
 import me.polymarsdev.sokobot.listener.GameListener;
 import me.polymarsdev.sokobot.util.GameUtil;
+import net.dv8tion.jda.api.JDA;
 import net.dv8tion.jda.api.OnlineStatus;
 import net.dv8tion.jda.api.entities.Activity;
 import net.dv8tion.jda.api.entities.Guild;
@@ -32,6 +33,8 @@ public class Bot {
     private static final boolean enableDatabase = false;
     private static final Database.DBType dbType = Database.DBType.SQLite;
 
+    public static boolean debug = false;
+
     private static ShardManager shardManager;
     private static Database database = null;
 
@@ -96,7 +99,14 @@ public class Bot {
 
     private static void processCommand(String cmd) {
         if (cmd.equalsIgnoreCase("help")) {
-            System.out.println("Commands:\nstop - Shuts down the bot and exits the program");
+            System.out.println("Commands:\nstop - Shuts down the bot and exits the program\ndebug - Toggle debug mode");
+            return;
+        }
+        if (cmd.equalsIgnoreCase("debug")) {
+            debug = !debug;
+            String response = debug ? "on" : "off";
+            System.out.println("[INFO] Turned " + response + " debug mode");
+            Bot.debug("Make sure to turn off debug mode after necessary information has been collected.");
             return;
         }
         if (cmd.equalsIgnoreCase("stop")) {
@@ -113,6 +123,33 @@ public class Bot {
         System.out.println("Unknown command. Please use \"help\" for a list of commands.");
     }
 
+    /*
+    Debug Info for Developer information
+    > Limit update to 10 seconds minimum because of JDA shard checks
+     */
+    private static long lastDebugInfoUpdate = -1L;
+    private static String debugInfo = "";
+
+    private static void updateDebugInfo() {
+        long now = System.currentTimeMillis();
+        if (now - lastDebugInfoUpdate < 10000) return;
+        lastDebugInfoUpdate = now;
+        int a = enableDatabase ? 1 : 0;
+        int b = enableDatabase ? database.isConnected() ? 1 : 0 : 0;
+        int c = 0;
+        int d = shardManager.getShardsTotal();
+        for (JDA shard : shardManager.getShards()) if (shard.getStatus() == JDA.Status.CONNECTED) c++;
+        debugInfo = a + b + c + d + "";
+    }
+
+    // Print a message when debug is on
+    public static void debug(String log) {
+        if (debug) {
+            updateDebugInfo();
+            System.out.println("[DEBUG " + debugInfo + "] " + log);
+        }
+    }
+
     public static ShardManager getShardManager() {
         return shardManager;
     }

src/main/java/me/polymarsdev/sokobot/commands/GameInputCommand.java

@@ -29,6 +29,7 @@ public class GameInputCommand extends Command {
         } else game = GameUtil.getGame(user.getIdLong());
         //
         String userInput = this.getName().toLowerCase();
+        Bot.debug("Processing game input: " + userInput);
         if (userInput.equals("play")) {
             if (!game.gameActive) {
                 if (args.length > 0 && EmojiManager.isEmoji(args[0])) game.setPlayerEmote(args[0]);

src/main/java/me/polymarsdev/sokobot/commands/InfoCommand.java

@@ -14,6 +14,7 @@ public class InfoCommand extends Command {
 
     @Override
     public void execute(CommandEvent event) {
+        Bot.debug("Received info command (or bot mention)");
         Guild guild = event.getGuild();
         EmbedBuilder info = new EmbedBuilder();
         final String prefix = Bot.getPrefix(guild);
@@ -30,16 +31,17 @@ public class InfoCommand extends Command {
                 + "Java HashMaps:tm:, multiple users can use the bot at the same time without interfering with one "
                 + "another.\n:white_small_square:**Custom prefixes**\nTo prevent Sokobot from conflicting with other "
                 + "bots, admins can choose any single-character prefix to preface Sokobot's commands.", false);
-        info.addField("Commands",
+        info.addField(
-                      ("``" + prefix + "play`` can be used to start a game if you are not " + "currently in "
+                "Commands",
-                              + "one.\n``" + prefix + "stop`` can be used to stop your active game at any "
+                ("``" + prefix + "play`` can be used to start a game if you are not " + "currently in " + "one.\n``"
-                              + "time.\n``" + prefix + "info`` provides some useful details about the bot and "
+                        + prefix + "stop`` can be used to stop your active game at any " + "time.\n``" + prefix
-                              + "rules of " + "the game.\n``" + Bot.getPrefix(guild)
+                        + "info`` provides some useful details about the bot and " + "rules of " + "the game.\n``" + Bot
-                              + "prefix [character]`` can be used to " + "change the prefix the " + "bot responds to."),
+                        .getPrefix(guild) + "prefix [character]`` can be used to " + "change the prefix the "
-                      false);
+                        + "bot responds to."), false);
-        info.addField("Add to your server",
+        info.addField(
-                      "https://top.gg/bot/713635251703906336\nSokobot is currently in " + Bot.getShardManager()
+                "Add to your server",
-                              .getGuilds().size() + " servers.", false);
+                "https://top.gg/bot/713635251703906336\nSokobot is currently in " + Bot.getShardManager().getGuilds()
+                                                                                       .size() + " servers.", false);
         /*
         // Official Support Server
         info.addField("Support / Feedback",

src/main/java/me/polymarsdev/sokobot/commands/PrefixCommand.java

@@ -3,7 +3,6 @@ package me.polymarsdev.sokobot.commands;
 import me.polymarsdev.sokobot.Bot;
 import me.polymarsdev.sokobot.entity.Command;
 import me.polymarsdev.sokobot.event.CommandEvent;
-import net.dv8tion.jda.api.EmbedBuilder;
 import net.dv8tion.jda.api.Permission;
 import net.dv8tion.jda.api.entities.Guild;
 import net.dv8tion.jda.api.entities.Member;
@@ -20,18 +19,28 @@ public class PrefixCommand extends Command {
         User user = event.getAuthor();
         Member member = event.getMember();
         String[] args = event.getArgs();
+        Guild guild = event.getGuild();
+        Bot.debug("Received prefix command: " + event.getMessage().getContentRaw());
         if (args.length > 0) {
             if (!member.hasPermission(Permission.ADMINISTRATOR)) {
+                Bot.debug("Failed to change prefix of " + guild.getName() + " (" + guild.getId()
+                                  + "): Insufficient permissions");
                 event.reply(user.getAsMention() + ", you do not have permission to use this command.");
                 return;
             }
             String newPrefix = args[0].toLowerCase();
             if (newPrefix.length() > 1) {
+                Bot.debug("Failed to change prefix of " + guild.getName() + " (" + guild.getId() + "): length");
                 event.reply(user.getAsMention() + ", the prefix must be one character long!");
                 return;
             }
-            Bot.setPrefix(event.getGuild(), newPrefix);
+            Bot.setPrefix(guild, newPrefix);
+            Bot.debug("Successfully changed server prefix of " + guild.getName() + " (" + guild.getId() + ") to: "
+                              + newPrefix);
             event.reply("Prefix successfully changed to ``" + newPrefix + "``.");
-        }
+            return;
+        }
+        event.reply(user.getAsMention() + ", please use `" + Bot.getPrefix(guild)
+                            + "prefix <new prefix>` to set a server-prefix.");
     }
 }

src/main/java/me/polymarsdev/sokobot/database/Database.java

@@ -10,7 +10,7 @@ public class Database {
     /**
      * SQLite Data
      * Set this data if you use DBType#SQLite
-     *
+     * <p>
      * field filePath - This can either be a relative or absolute path.
      * ex: sokobot.db
      * or: C:/sqlite/db/sokobot.db
@@ -82,8 +82,7 @@ public class Database {
 
     public ResultSet query(String sql) {
         try {
-            ResultSet rs = con.prepareStatement(sql).executeQuery();
+            return con.prepareStatement(sql).executeQuery();
-            return rs;
         } catch (SQLException e) {
             e.printStackTrace();
             return null;

src/main/java/me/polymarsdev/sokobot/listener/CommandListener.java

@@ -1,13 +1,11 @@
 package me.polymarsdev.sokobot.listener;
 
 import me.polymarsdev.sokobot.Bot;
-import me.polymarsdev.sokobot.Game;
 import me.polymarsdev.sokobot.commands.GameInputCommand;
 import me.polymarsdev.sokobot.commands.InfoCommand;
 import me.polymarsdev.sokobot.commands.PrefixCommand;
 import me.polymarsdev.sokobot.entity.Command;
 import me.polymarsdev.sokobot.event.CommandEvent;
-import me.polymarsdev.sokobot.util.GameUtil;
 import net.dv8tion.jda.api.Permission;
 import net.dv8tion.jda.api.entities.*;
 import net.dv8tion.jda.api.events.message.guild.GuildMessageReceivedEvent;
@@ -36,35 +34,6 @@ public class CommandListener extends ListenerAdapter {
         Message message = event.getMessage();
         TextChannel channel = event.getChannel();
         Guild guild = event.getGuild();
-        if (user.getId().equals(event.getJDA().getSelfUser().getId())) {
-            List<MessageEmbed> embeds = message.getEmbeds();
-            if (embeds.size() > 0) {
-                MessageEmbed embed = embeds.get(0);
-                if (embed.getTitle() != null && embed.getTitle().length() > 0) {
-                    if (embed.getTitle().startsWith("Sokobot | Level ")) {
-                        message.addReaction("U+2B05").queue();
-                        message.addReaction("U+27A1").queue();
-                        message.addReaction("U+2B06").queue();
-                        message.addReaction("U+2B07").queue();
-                        message.addReaction("U+1F504").queue();
-                        List<MessageEmbed.Field> fields = embed.getFields();
-                        for (MessageEmbed.Field field : fields) {
-                            if (field.getName() != null && field.getName().equals("Player")) {
-                                if (field.getValue() != null) {
-                                    long playerId = Long
-                                            .parseLong(field.getValue().substring(2, field.getValue().length() - 1));
-                                    if (GameUtil.hasGame(playerId)) {
-                                        Game game = GameUtil.getGame(playerId);
-                                        game.setGameMessage(message);
-                                    }
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-            return;
-        }
         String msgRaw = message.getContentRaw();
         String[] args = msgRaw.split("\\s+");
         if (args.length > 0) {
@@ -88,13 +57,19 @@ public class CommandListener extends ListenerAdapter {
                 }
             }
             if (isCommand) {
+                Bot.debug("Command received: " + arg);
                 if (!hasPermissions(guild, channel)) {
+                    Bot.debug("Not enough permissions to run command: " + arg);
                     sendInvalidPermissionsMessage(user, channel);
                     return;
                 }
                 Command command = commands.get(arg);
                 if (isMention) command = commands.get("info");
-                if (command == null) return;
+                if (command == null) {
+                    Bot.debug("Received command does not exist: " + arg);
+                    return;
+                }
+                Bot.debug("Executing command: " + arg);
                 command.execute(new CommandEvent(event, Arrays.copyOfRange(msgRaw.split("\\s+"), 1, args.length)));
             }
         }

src/main/java/me/polymarsdev/sokobot/listener/GameListener.java

@@ -58,7 +58,10 @@ public class GameListener extends ListenerAdapter {
                         reactionCommand = false;
                         break;
                 }
-                if (reactionCommand) game.run(guild, channel, userInput);
+                Bot.debug("Executing reaction input: " + userInput);
+                if (reactionCommand) {
+                    game.run(guild, channel, userInput);
+                } else Bot.debug("Received invalid reaction command: " + event.getReactionEmote().getName());
                 if (guild.getSelfMember().hasPermission(channel, Permission.MESSAGE_MANAGE))
                     reaction.removeReaction(user).queue();
             }

src/main/java/me/polymarsdev/sokobot/util/GameUtil.java

@@ -39,7 +39,15 @@ public class GameUtil {
         embed.addField("Enter direction (``up``, ``down``, ``left``, ``right``/``wasd``), ``r`` to reset or ``mr`` to "
                                + "recreate the map", "", false);
         embed.addField("Player", user.getAsMention(), false);
-        channel.sendMessage(embed.build()).queue();
+        channel.sendMessage(embed.build()).queue(message -> {
+            message.addReaction("U+2B05").queue();
+            message.addReaction("U+27A1").queue();
+            message.addReaction("U+2B06").queue();
+            message.addReaction("U+2B07").queue();
+            message.addReaction("U+1F504").queue();
+            Game theGame = GameUtil.getGame(user.getIdLong());
+            theGame.setGameMessage(message);
+        });
     }
 
     public static void updateGameEmbed(Message message, String level, String game, User user) {