/*
 * InspIRCd -- Internet Relay Chat Daemon
 *
 *   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
 *
 * This file is part of InspIRCd.  InspIRCd is free software: you can
 * redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation, version 2.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */


#include "inspircd.h"
#include "commands/cmd_whois.h"
#include "commands/cmd_stats.h"
#include "socket.h"
#include "xline.h"
#include "transport.h"
#include "socketengine.h"

#include "m_spanningtree/main.h"
#include "m_spanningtree/utils.h"
#include "m_spanningtree/treeserver.h"
#include "m_spanningtree/treesocket.h"

/* $ModDep: m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/treesocket.h */

bool TreeSocket::ServiceJoin(const std::string &prefix, std::deque<std::string> &params)
{
	// Check params
	if (params.size() < 2)
		return true;

	// Check for valid channel name
	if (!ServerInstance->IsChannel(params[1].c_str(), ServerInstance->Config->Limits.ChanMax))
		return true;

	// Check target exists
	User* u = this->ServerInstance->FindNick(params[0]);
	if (!u)
		return true;

	/* only join if it's local, otherwise just pass it on! */
	if (IS_LOCAL(u))
		Channel::JoinUser(this->ServerInstance, u, params[1].c_str(), false, "", false, ServerInstance->Time());
	else
	{
		/* Only forward when the route to the target is not the same as the sender.
		 * This occurs with 1.2.9 and older servers, as they broadcast SVSJOIN/SVSPART,
		 * so we can end up here with a user who is reachable via the sender.
		 * If that's the case, just drop the command.
		 */
		TreeServer* routeserver = Utils->BestRouteTo(u->server);
		if ((routeserver) && (routeserver->GetSocket() != this))
			Utils->DoOneToOne(prefix,"SVSJOIN",params,u->server);
	}

	return true;
}