package com.planet_ink.coffee_mud.Commands;
import com.planet_ink.coffee_mud.core.interfaces.*;
import com.planet_ink.coffee_mud.core.*;
import com.planet_ink.coffee_mud.core.collections.*;
import com.planet_ink.coffee_mud.Abilities.interfaces.*;
import com.planet_ink.coffee_mud.Areas.interfaces.*;
import com.planet_ink.coffee_mud.Behaviors.interfaces.*;
import com.planet_ink.coffee_mud.CharClasses.interfaces.*;
import com.planet_ink.coffee_mud.Commands.interfaces.*;
import com.planet_ink.coffee_mud.Common.interfaces.*;
import com.planet_ink.coffee_mud.Exits.interfaces.*;
import com.planet_ink.coffee_mud.Items.interfaces.*;
import com.planet_ink.coffee_mud.Libraries.interfaces.*;
import com.planet_ink.coffee_mud.Locales.interfaces.*;
import com.planet_ink.coffee_mud.MOBS.interfaces.*;
import com.planet_ink.coffee_mud.Races.interfaces.*;

import java.util.*;

/*
   Copyright 2004-2020 Bo Zimmerman

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

	   http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/
public class Empty extends Drop
{
	public Empty()
	{
	}

	private final String[] access=I(new String[]{"EMPTY","EMP"});
	@Override
	public String[] getAccessWords()
	{
		return access;
	}

	@Override
	public boolean execute(final MOB mob, final List<String> commands, final int metaFlags)
		throws java.io.IOException
	{
		String whatToDrop=null;
		Environmental target=mob;
		final List<Item> itemsV=new ArrayList<Item>();
		if(commands.size()<2)
		{
			mob.tell(L("Empty what where?"));
			return false;
		}
		commands.remove(0);
		if(commands.size()>1)
		{
			final String s=commands.get(commands.size()-1);
			if(s.equalsIgnoreCase("here"))
				target=mob.location();
			else
			if(s.equalsIgnoreCase("me"))
				target=mob;
			else
			if(s.equalsIgnoreCase("self"))
				target=mob;
			else
			if("INVENTORY".startsWith(s.toUpperCase()))
				target=mob;
			else
			if(s.equalsIgnoreCase("floor"))
				target=mob.location();
			else
			if(s.equalsIgnoreCase("ground"))
				target=mob.location();
			else
			{
				target=CMLib.english().parsePossibleContainer(mob,commands,false,Wearable.FILTER_UNWORNONLY);
				if(target==null)
					target=mob.location().fetchFromRoomFavorItems(null,s);
				else
					commands.add("delme");
			}
			if(target!=null)
				commands.remove(commands.size()-1);
		}

		if((target==null)||(!CMLib.flags().canBeSeenBy(target,mob)))
		{
			mob.tell(L("Empty it where?"));
			return false;
		}

		final int maxToDrop=CMLib.english().parseMaxToGive(mob,commands,true,mob,false);
		if(maxToDrop<0)
			return false;

		whatToDrop=CMParms.combine(commands,0);
		boolean allFlag=(commands.size()>0)?commands.get(0).equalsIgnoreCase("all"):false;
		if(whatToDrop.toUpperCase().startsWith("ALL."))
		{
			allFlag=true;
			whatToDrop="ALL "+whatToDrop.substring(4);
		}
		if(whatToDrop.toUpperCase().endsWith(".ALL"))
		{
			allFlag=true;
			whatToDrop="ALL "+whatToDrop.substring(0,whatToDrop.length()-4);
		}
		int addendum=1;
		String addendumStr="";
		Drink drink=null;
		boolean doBugFix = true;
		while(doBugFix || ((allFlag)&&(addendum<=maxToDrop)))
		{
			doBugFix=false;
			Item dropThis=mob.fetchItem(null,Wearable.FILTER_UNWORNONLY,whatToDrop+addendumStr);
			if((dropThis==null)
			&&(itemsV.size()==0)
			&&(addendumStr.length()==0)
			&&(!allFlag))
			{
				dropThis=mob.fetchItem(null,Wearable.FILTER_WORNONLY,whatToDrop);
				if((dropThis!=null)&&(dropThis instanceof Container))
				{
					if((!dropThis.amWearingAt(Wearable.WORN_HELD))&&(!dropThis.amWearingAt(Wearable.WORN_WIELD)))
					{
						mob.tell(L("You must remove that first."));
						return false;
					}
					final CMMsg newMsg=CMClass.getMsg(mob,dropThis,null,CMMsg.MSG_REMOVE,null);
					if(mob.location().okMessage(mob,newMsg))
						mob.location().send(mob,newMsg);
					else
						return false;
				}
			}
			if(dropThis==null)
				break;
			if(dropThis instanceof Drink)
				drink=(Drink)dropThis;
			if((CMLib.flags().canBeSeenBy(dropThis,mob))
			&&(dropThis instanceof Container)
			&&(!itemsV.contains(dropThis)))
				itemsV.add(dropThis);
			addendumStr="."+(++addendum);
		}

		String str=L("<S-NAME> empt(ys) <T-NAME>");
		if(target instanceof Room)
			str+=" here.";
		else
		if(target instanceof MOB)
			str+=".";
		else str+=" into "+target.Name()+".";

		if((itemsV.size()==0)&&(drink!=null))
		{
			mob.tell(L("@x1 must be POURed out.",drink.name()));
			return false;
		}

		if(itemsV.size()==0)
			mob.tell(L("You don't seem to be carrying that."));
		else
		if((itemsV.size()==1)&&(itemsV.get(0)==target))
			mob.tell(L("You can't empty something into itself!"));
		else
		if((itemsV.size()==1)
		&&(itemsV.get(0) instanceof Drink)
		&&(!((Drink)itemsV.get(0)).containsDrink())
		)
			mob.tell(mob,itemsV.get(0),null,L("<T-NAME> is already empty."));
		else
		for(int v=0;v<itemsV.size();v++)
		{
			final Container C=(Container)itemsV.get(v);
			if(C==target)
				continue;

			boolean skipMessage=false;
			if((C instanceof Drink)&&(((Drink)C).containsDrink()))
			{
				if(target instanceof Drink)
				{
					final Command C2=CMClass.getCommand("Pour");
					C2.execute(mob,new XVector<String>("POUR","$"+C.Name()+"$","$"+target.Name()+"$"),metaFlags);
					skipMessage=true;
				}
				else
				{
					((Drink)C).setLiquidRemaining(0);
					if(((Drink)C).disappearsAfterDrinking())
						C.destroy();
				}
			}
			final CMMsg msg=CMClass.getMsg(mob,C,CMMsg.MSG_QUIETMOVEMENT,str);
			final Room R=mob.location();
			if(skipMessage||(R.okMessage(mob,msg)))
			{
				if(!skipMessage)
					R.send(mob,msg);
				final List<Item> V2=C.getContents();
				for(int v2=0;v2<V2.size();v2++)
				{
					final Item I=V2.get(v2);
					if(I instanceof Coins)
						((Coins)I).setContainer(null);

					if(((I.container()==null)||(Get.get(mob,C,I,true,null,true)))
					&&(I.container()==null))
					{
						if(target instanceof Room)
							drop(mob,I,true,true,false);
						else
						if(target instanceof Container)
						{
							final CMMsg putMsg=CMClass.getMsg(mob,target,I,CMMsg.MASK_OPTIMIZE|CMMsg.MSG_PUT,null);
							if(R.okMessage(mob,putMsg))
								R.send(mob,putMsg);
						}
						if(I instanceof Coins)
							((Coins)I).putCoinsBack();
						if(I instanceof RawMaterial)
							((RawMaterial)I).rebundle();
					}
				}
			}
		}
		mob.location().recoverRoomStats();
		mob.location().recoverRoomStats();
		return false;
	}

	@Override
	public double combatActionsCost(final MOB mob, final List<String> cmds)
	{
		return CMProps.getCommandCombatActionCost(ID());
	}

	@Override
	public double actionsCost(final MOB mob, final List<String> cmds)
	{
		return CMProps.getCommandActionCost(ID());
	}

	@Override
	public boolean canBeOrdered()
	{
		return true;
	}

}
