Dump roles ID command.

src/main/java/net/pingex/dcf/commands/InternalCommands.java

@@ -2,11 +2,12 @@ package net.pingex.dcf.commands;
 
 import net.pingex.dcf.commands.options.ICommandOption;
 import net.pingex.dcf.commands.options.ScopeOption;
+import net.pingex.dcf.commands.permissions.DefaultPermissionOption;
 import net.pingex.dcf.core.Configuration;
 import net.pingex.dcf.util.ArgumentParser;
 import net.pingex.dcf.util.DiscordInteractionsUtil;
 import org.apache.commons.lang3.StringUtils;
-import sx.blah.discord.handle.impl.events.MessageReceivedEvent;
+import sx.blah.discord.handle.obj.IRole;
 import java.util.*;
 
 /**
@@ -17,7 +18,7 @@ public class InternalCommands implements IWithCommands
 	@Override
 	public Set<Command> getCommands()
 	{
-		return new HashSet<>(Arrays.asList(ListCommand.INSTANCE, UsageCommand.INSTANCE));
+		return new HashSet<>(Arrays.asList(ListCommand.INSTANCE, UsageCommand.INSTANCE, dumpRoles));
 	}
 
 	/**
@@ -154,4 +155,31 @@ public class InternalCommands implements IWithCommands
 			DiscordInteractionsUtil.sendMessage(context.getChannel(), output.toString());
 		}
 	}
+
+	private static final Command dumpRoles = Command.builder("internal:dumpRoles")
+			.aliases("dumpRoles")
+			.description("Dump all Roles ID for the current Guild.")
+			.options(new HashSet<>(Arrays.asList(
+					new DefaultPermissionOption(DefaultPermissionOption.Value.ANY_OWNER),
+					new ScopeOption(ScopeOption.CommandScope.GUILD_CHAT))))
+			.build(InternalCommands::dumpRolesImpl);
+
+	private static void dumpRolesImpl(Context context)
+	{
+		if(context.getGuild().getRoles().size() == 0)
+		{
+			DiscordInteractionsUtil.sendMessage(context.getChannel(), "This guild has no role defined.");
+			return;
+		}
+
+		StringBuilder sb = new StringBuilder("**Roles ID** for ").append(context.getGuild().getName()).append("\n")
+				.append("```\n");
+
+		int longestName = context.getGuild().getRoles().stream().max(Comparator.comparingInt(i -> i.getName().length())).get().getName().length();
+		for(IRole i : context.getGuild().getRoles())
+			sb.append("* ").append(StringUtils.rightPad(i.getName(), longestName)).append(" - ").append(i.getID()).append("\n");
+
+		sb.append("```");
+		DiscordInteractionsUtil.sendMessage(context.getChannel(), sb.toString());
+	}
 }