package com.planet_ink.coffee_mud.Abilities.Ranger;
import com.planet_ink.coffee_mud.Abilities.StdAbility;
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.ExpertiseLibrary;
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 2003-2020 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 Ranger_Sneak extends StdAbility
{
	@Override
	public String ID()
	{
		return "Ranger_Sneak";
	}

	private final static String localizedName = CMLib.lang().L("Woodland Sneak");

	@Override
	public String name()
	{
		return localizedName;
	}

	@Override
	protected int canAffectCode()
	{
		return 0;
	}

	@Override
	protected int canTargetCode()
	{
		return 0;
	}

	@Override
	public int abstractQuality()
	{
		return Ability.QUALITY_INDIFFERENT;
	}

	private static final String[] triggerStrings =I(new String[] {"WSNEAK"});
	@Override
	public String[] triggerStrings()
	{
		return triggerStrings;
	}

	@Override
	public int classificationCode()
	{
		return Ability.ACODE_SKILL|Ability.DOMAIN_STEALTHY;
	}

	@Override
	public int usageType()
	{
		return USAGE_MOVEMENT;
	}

	public int getMOBLevel(final MOB meMOB)
	{
		if(meMOB==null)
			return 0;
		return meMOB.phyStats().level();
	}

	public MOB getHighestLevelMOB(final MOB meMOB, final List<MOB> not)
	{
		if(meMOB==null)
			return null;
		final Room R=meMOB.location();
		if(R==null)
			return null;
		int highestLevel=0;
		MOB highestMOB=null;
		final Set<MOB> H=meMOB.getGroupMembers(new HashSet<MOB>());
		if(not!=null)
			H.addAll(not);
		for(int i=0;i<R.numInhabitants();i++)
		{
			final MOB M=R.fetchInhabitant(i);
			if((M!=null)
			&&(M!=meMOB)
			&&(!H.contains(M))
			&&(highestLevel<M.phyStats().level()))
			{
				highestLevel=M.phyStats().level();
				highestMOB=M;
			}
		}
		return highestMOB;
	}

	@Override
	public boolean invoke(final MOB mob, final List<String> commands, final Physical givenTarget, final boolean auto, final int asLevel)
	{
		String dir=CMParms.combine(commands,0);
		if(commands.size()>0)
			dir=commands.get(commands.size()-1);
		final int dirCode=CMLib.directions().getGoodDirectionCode(dir);
		if(dirCode<0)
		{
			mob.tell(L("Sneak where?"));
			return false;
		}

		if((!CMLib.flags().isInWilderness(mob))&&(!auto))
		{
			mob.tell(L("You must be in the wilderness to do this."));
			return false;
		}
		if(((mob.location().domainType()==Room.DOMAIN_OUTDOORS_CITY)
		   ||(mob.location().domainType()==Room.DOMAIN_OUTDOORS_SPACEPORT))
		&&(!auto))
		{
			mob.tell(L("You don't know how to sneak around a place like this."));
			return false;
		}

		if((mob.location().getRoomInDir(dirCode)==null)||(mob.location().getExitInDir(dirCode)==null))
		{
			mob.tell(L("Sneak where?"));
			return false;
		}

		final MOB highestMOB=getHighestLevelMOB(mob,null);
		int levelDiff=(mob.phyStats().level()+(2*getXLEVELLevel(mob)))-getMOBLevel(highestMOB);

		if(!super.invoke(mob,commands,givenTarget,auto,asLevel))
			return false;

		boolean success=false;
		final CMMsg msg=CMClass.getMsg(mob,null,this,auto?CMMsg.MSG_OK_VISUAL:CMMsg.MSG_DELICATE_HANDS_ACT,L("You quietly sneak @x1.",CMLib.directions().getDirectionName(dirCode)),CMMsg.NO_EFFECT,null,CMMsg.NO_EFFECT,null);
		if(mob.location().okMessage(mob,msg))
		{
			mob.location().send(mob,msg);
			if(levelDiff<0)
				levelDiff=levelDiff*10;
			else
				levelDiff=levelDiff*5;
			success=proficiencyCheck(mob,levelDiff,auto);

			if(success)
			{
				mob.basePhyStats().setDisposition(mob.basePhyStats().disposition()|PhyStats.IS_SNEAKING);
				mob.recoverPhyStats();
			}
			CMLib.tracking().walk(mob,dirCode,false,false);
			if(success)
			{

				final int disposition=mob.basePhyStats().disposition();
				if((disposition&PhyStats.IS_SNEAKING)>0)
				{
					mob.basePhyStats().setDisposition(disposition-PhyStats.IS_SNEAKING);
					mob.recoverPhyStats();
				}
			}
		}
		return success;
	}

}
