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.ChannelsLibrary;
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 ChanWho extends StdCommand
{
	public ChanWho()
	{
	}

	private final String[] access=I(new String[]{"CHANWHO"});
	@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 channel=CMParms.combine(commands,1);
		if((channel==null)||(channel.length()==0))
		{
			mob.tell(L("You must specify a channel name. Try CHANNELS for a list."));
			return false;
		}
		final int x=channel.indexOf('@');
		String mud=null;
		final ChannelsLibrary channels = CMLib.channels();
		if(x>0)
		{
			mud=channel.substring(x+1);
			final int channelInt=channels.getChannelIndex(channel.substring(0,x).toUpperCase());
			if(channelInt<0)
			{
				mob.tell(L("You must specify a valid channel name. Try CHANNELS for a list."));
				return false;
			}
			channel=channels.getChannel(channelInt).name().toUpperCase();
			if((channel.length()==0)||(channelInt<0))
			{
				mob.tell(L("You must specify a valid channel name. Try CHANNELS for a list."));
				return false;
			}
			CMLib.intermud().i3chanwho(mob,channel,mud);
			return false;
		}
		final int channelInt=channels.getChannelIndex(channel.toUpperCase());
		channel=channels.getChannel(channelInt).name();
		if(channelInt<0)
		{
			mob.tell(L("You must specify a valid channel name. Try CHANNELS for a list."));
			return false;
		}
		final String head="^x\n\rListening on "+channel+":^?^.^N\n\r";
		final StringBuffer buf=new StringBuffer("");
		final boolean areareq=CMLib.channels().getChannel(channelInt).flags().contains(ChannelsLibrary.ChannelFlag.SAMEAREA);
		for(final Session S : CMLib.sessions().localOnlineIterable())
		{
			MOB mob2=S.mob();
			if((mob2!=null)&&(mob2.soulMate()!=null))
				mob2=mob2.soulMate();
			final ChannelsLibrary myChanLib=CMLib.get(S)._channels();
			final int chanNum = (myChanLib == channels) ? channelInt : myChanLib.getChannelIndex(channel);
			if((chanNum>=0)
			&&(myChanLib.mayReadThisChannel(mob,areareq,S,chanNum))
			&&(mob2!=null)
			&&(CMLib.flags().isInTheGame(mob2,true))
			&&((((mob2.phyStats().disposition()&PhyStats.IS_CLOAKED)==0)
					||((CMSecurity.isAllowedAnywhere(mob,CMSecurity.SecFlag.CLOAK)||CMSecurity.isAllowedAnywhere(mob,CMSecurity.SecFlag.WIZINV))&&(mob.phyStats().level()>=mob2.phyStats().level())))))
					buf.append("^x[^?^.^N"+CMStrings.padRight(mob2.name(),20)+"^x]^?^.^N\n\r");
		}
		if(buf.length()==0)
			mob.tell(L("@x1Nobody!",head));
		else
			mob.tell(head+buf.toString());
		return false;
	}

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

}
