package org.bukkit.craftbukkit.command;

import cpw.mods.fml.common.FMLCommonHandler;
import net.minecraft.command.ICommandSender;
import org.bukkit.Server;
import org.bukkit.command.Command;
import org.bukkit.command.CommandException;
import org.bukkit.command.CommandSender;
import org.bukkit.command.ConsoleCommandSender;
import org.bukkit.command.SimpleCommandMap;
import org.bukkit.craftbukkit.entity.CraftPlayer;

import java.util.regex.Pattern;

import static org.bukkit.util.Java15Compat.Arrays_copyOfRange;

public class CraftSimpleCommandMap extends SimpleCommandMap
{

	private static final Pattern PATTERN_ON_SPACE = Pattern.compile(" ", Pattern.LITERAL);
	private ICommandSender vanillaConsoleSender; // Cauldron

	public CraftSimpleCommandMap(Server server)
	{
		super(server);
	}

	/**
	 * {@inheritDoc}
	 */
	public boolean dispatch(CommandSender sender, String commandLine) throws CommandException
	{
		String[] args = PATTERN_ON_SPACE.split(commandLine);

		if(args.length == 0)
		{
			return false;
		}

		String sentCommandLabel = args[0].toLowerCase();
		Command target = getCommand(sentCommandLabel);

		if(target == null)
		{
			return false;
		}
		try
		{
			// Cauldron start - if command is a mod command, check permissions and route through vanilla
			if(target instanceof ModCustomCommand)
			{
				if(!target.testPermission(sender)) return true;
				if(sender instanceof ConsoleCommandSender)
				{
					FMLCommonHandler.instance().getMinecraftServerInstance().getCommandManager().executeCommand(this.vanillaConsoleSender, commandLine);
				}
				else FMLCommonHandler.instance().getMinecraftServerInstance().getCommandManager().executeCommand(((CraftPlayer) sender).getHandle(), commandLine);
			}
			else
			{
				// Cauldron end
				// Note: we don't return the result of target.execute as thats success / failure, we return handled (true) or not handled (false)
				target.execute(sender, sentCommandLabel, Arrays_copyOfRange(args, 1, args.length));
			}
		} catch(CommandException ex)
		{
			throw ex;
		} catch(Throwable ex)
		{
			throw new CommandException("Unhandled exception executing '" + commandLine + "' in " + target, ex);
		}

		// return true as command was handled
		return true;
	}

	// Cauldron start - sets the vanilla console sender
	public void setVanillaConsoleSender(ICommandSender console)
	{
		this.vanillaConsoleSender = console;
	}
	// Cauldron end
}