#include <stdio.h>
#include <string>
#include <vector>
#include "users.h"
#include "channels.h"
#include "modules.h"
#include "helperfuncs.h"
#include "u_listmode.h"

/* $ModDesc: Provides support for the +I channel mode */

/* Written by Om<om@inspircd.org>, April 2005. */
/* Based on m_exception, which was originally based on m_chanprotect and m_silence */

// The +I channel mode takes a nick!ident@host, glob patterns allowed,
// and if a user matches an entry on the +I list then they can join the channel, ignoring if +i is set on the channel

class ModuleInviteException : public ListModeBaseModule
{
public:
	ModuleInviteException(Server* serv) : ListModeBaseModule::ListModeBaseModule(serv, 'I', "End of Channel Invite Exception List", "346", "347")
	{
	}
	
	virtual void Implements(char* List)
	{
		this->DoImplements(List);
		List[I_On005Numeric] = List[I_OnCheckInvite] = 1;
	}
	
	virtual void On005Numeric(std::string &output)
	{
		output.append(" INVEX=I");
		output.insert(output.find("CHANMODES=", 0)+10, "I");
	}
	 
	virtual int OnCheckInvite(userrec* user, chanrec* chan)
	{
		if(chan != NULL)
		{
			modelist* list = (modelist*)chan->GetExt(infokey);
			Srv->Log(DEBUG, std::string(user->nick)+" is trying to join "+std::string(chan->name)+", checking for invite exceptions");
			if (list)
			{
				for (modelist::iterator it = list->begin(); it != list->end(); it++)
				{
					if(Srv->MatchText(user->GetFullRealHost(), it->mask) || Srv->MatchText(user->GetFullHost(), it->mask))
					{
						// They match an entry on the list, so let them in.
						return 1;
					}
				}
			}
			// or if there wasn't a list, there can't be anyone on it, so we don't need to do anything.
		}

		return 0;		
	}
		
	virtual Version GetVersion()
	{
		return Version(1, 0, 0, 2, VF_STATIC);
	}
};


class ModuleInviteExceptionFactory : public ModuleFactory
{
 public:
	ModuleInviteExceptionFactory()
	{
	}
	
	~ModuleInviteExceptionFactory()
	{
	}
	
	virtual Module * CreateModule(Server* serv)
	{
		return new ModuleInviteException(serv);
	}
	
};


extern "C" void * init_module( void )
{
	return new ModuleInviteExceptionFactory;
}