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 2004-2022 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 Buy extends StdCommand
{
	public Buy()
	{
	}

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

	@Override
	public boolean execute(final MOB mob, final List<String> commands, final int metaFlags)
		throws java.io.IOException
	{
		MOB mobFor=null;
		final Vector<String> origCmds=new XVector<String>(commands);
		if((commands.size()>2)
		&&(commands.get(commands.size()-2).equalsIgnoreCase("for")))
		{
			final MOB M=mob.location().fetchInhabitant(commands.get(commands.size()-1));
			if(M==null)
			{
				CMLib.commands().postCommandFail(mob,origCmds,L("There is no one called '@x1' here.",(commands.get(commands.size()-1))));
				return false;
			}
			commands.remove(commands.size()-1);
			commands.remove(commands.size()-1);
			mobFor=M;
		}

		final Environmental shopkeeper=CMLib.english().parseShopkeeper(mob,commands,"Buy what from whom?");
		if(shopkeeper==null)
			return false;
		if(commands.size()==0)
		{
			CMLib.commands().postCommandFail(mob,origCmds,L("Buy what?"));
			return false;
		}
		if(CMLib.coffeeShops().getShopKeeper(shopkeeper)==null)
		{
			mob.tell(L("@x1 is not a shopkeeper!",shopkeeper.name()));
			return false;
		}

		int maxToDo=Integer.MAX_VALUE;
		if((commands.size()>1)
		&&(CMath.s_int(commands.get(0))>0))
		{
			maxToDo=CMath.s_int(commands.get(0));
			commands.set(0,"all");
		}

		String whatName=CMParms.combine(commands,0);
		final Vector<Environmental> V=new Vector<Environmental>();
		boolean allFlag=commands.get(0).equalsIgnoreCase("all");
		if(whatName.toUpperCase().startsWith("ALL."))
		{
			allFlag=true;
			whatName="ALL "+whatName.substring(4);
		}
		if(whatName.toUpperCase().endsWith(".ALL"))
		{
			allFlag=true;
			whatName="ALL "+whatName.substring(0,whatName.length()-4);
		}
		int addendum=1;
		boolean doBugFix = true;
		while(doBugFix || ((allFlag)&&(addendum<=maxToDo)))
		{
			doBugFix=false;
			final ShopKeeper SK=CMLib.coffeeShops().getShopKeeper(shopkeeper);
			final Environmental itemToDo=SK.getShop().getStock(whatName,mob);
			if(itemToDo==null)
				break;
			if(CMLib.flags().canBeSeenBy(itemToDo,mob))
				V.add(itemToDo);
			if(addendum>=CMLib.coffeeShops().getShopKeeper(shopkeeper).getShop().numberInStock(itemToDo))
				break;
			++addendum;
		}
		String forName="";
		if((mobFor!=null)&&(mobFor!=mob))
		{
			if(mobFor.name().indexOf(' ')>=0)
				forName=" for '"+mobFor.Name()+"'";
			else
				forName=" for "+mobFor.Name();
		}

		if(V.size()==0)
			mob.tell(mob,shopkeeper,null,L("<T-NAME> do(es)n't appear to have any '@x1' for sale.  Try LIST.",whatName));
		else
		for(int v=0;v<V.size();v++)
		{
			final Environmental thisThang=V.get(v);
			final CMMsg newMsg=CMClass.getMsg(mob,shopkeeper,thisThang,CMMsg.MSG_BUY,L("<S-NAME> buy(s) <O-NAME> from <T-NAMESELF>@x1.",forName));
			if(mob.location().okMessage(mob,newMsg))
				mob.location().send(mob,newMsg);
		}
		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 false;
	}
}
