package org.bukkit.command.defaults;

import com.google.common.collect.ImmutableList;
import org.apache.commons.lang.Validate;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.World;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.util.StringUtil;

import java.util.ArrayList;
import java.util.List;

public class TimeCommand extends VanillaCommand
{
	private static final List<String> TABCOMPLETE_ADD_SET = ImmutableList.of("add", "set");
	private static final List<String> TABCOMPLETE_DAY_NIGHT = ImmutableList.of("day", "night");

	public TimeCommand()
	{
		super("time");
		this.description = "Changes the time on each world";
		this.usageMessage = "/time set <value>\n/time add <value>";
		this.setPermission("bukkit.command.time.add;bukkit.command.time.set");
	}

	@Override
	public boolean execute(CommandSender sender, String currentAlias, String[] args)
	{
		if(args.length < 2)
		{
			sender.sendMessage(ChatColor.RED + "Incorrect usage. Correct usage:\n" + usageMessage);
			return false;
		}

		int value;

		if(args[0].equals("set"))
		{
			if(!sender.hasPermission("bukkit.command.time.set"))
			{
				sender.sendMessage(ChatColor.RED + "You don't have permission to set the time");
				return true;
			}

			if(args[1].equals("day"))
			{
				value = 0;
			}
			else if(args[1].equals("night"))
			{
				value = 12500;
			}
			else
			{
				value = getInteger(sender, args[1], 0);
			}

			for(World world : Bukkit.getWorlds())
			{
				world.setTime(value);
			}

			Command.broadcastCommandMessage(sender, "Set time to " + value);
		}
		else if(args[0].equals("add"))
		{
			if(!sender.hasPermission("bukkit.command.time.add"))
			{
				sender.sendMessage(ChatColor.RED + "You don't have permission to set the time");
				return true;
			}

			value = getInteger(sender, args[1], 0);

			for(World world : Bukkit.getWorlds())
			{
				world.setFullTime(world.getFullTime() + value);
			}

			Command.broadcastCommandMessage(sender, "Added " + value + " to time");
		}
		else
		{
			sender.sendMessage("Unknown method. Usage: " + usageMessage);
		}

		return true;
	}

	@Override
	public List<String> tabComplete(CommandSender sender, String alias, String[] args)
	{
		Validate.notNull(sender, "Sender cannot be null");
		Validate.notNull(args, "Arguments cannot be null");
		Validate.notNull(alias, "Alias cannot be null");

		if(args.length == 1)
		{
			return StringUtil.copyPartialMatches(args[0], TABCOMPLETE_ADD_SET, new ArrayList<String>(TABCOMPLETE_ADD_SET.size()));
		}
		else if(args.length == 2 && args[0].equalsIgnoreCase("set"))
		{
			return StringUtil.copyPartialMatches(args[1], TABCOMPLETE_DAY_NIGHT, new ArrayList<String>(TABCOMPLETE_DAY_NIGHT.size()));
		}
		return ImmutableList.of();
	}
}