/* ChanServ core functions
 *
 * (C) 2003-2009 Anope Team
 * Contact us at team@anope.org
 *
 * Please read COPYING and README for further details.
 *
 * Based on the original code of Epona by Lara.
 * Based on the original code of Services by Andy Church.
 *
 * $Id$
 *
 */
/*************************************************************************/

#include "module.h"

int do_logout(User * u);
void myChanServHelp(User * u);
void make_unidentified(User * u, ChannelInfo * ci);

class CSLogout : public Module
{
 public:
	CSLogout(const std::string &modname, const std::string &creator) : Module(modname, creator)
	{
		Command *c;

		this->SetAuthor("Anope");
		this->SetVersion("$Id$");
		this->SetType(CORE);

		c = createCommand("LOGOUT", do_logout, NULL, -1, CHAN_HELP_LOGOUT, -1, CHAN_SERVADMIN_HELP_LOGOUT, CHAN_SERVADMIN_HELP_LOGOUT);
		this->AddCommand(CHANSERV, c, MOD_UNIQUE);

		this->SetChanHelp(myChanServHelp);
	}
};


/**
 * Add the help response to anopes /cs help output.
 * @param u The user who is requesting help
 **/
void myChanServHelp(User * u)
{
	notice_lang(s_ChanServ, u, CHAN_HELP_CMD_LOGOUT);
}

/**
 * The /cs command.
 * @param u The user who issued the command
 * @param MOD_CONT to continue processing other modules, MOD_STOP to stop processing.
 **/
int do_logout(User * u)
{
	char *chan = strtok(NULL, " ");
	char *nick = strtok(NULL, " ");
	ChannelInfo *ci;
	User *u2 = NULL;
	int is_servadmin = is_services_admin(u);

	if (!chan || (!nick && !is_servadmin)) {
		syntax_error(s_ChanServ, u, "LOGOUT",
					 (!is_servadmin ? CHAN_LOGOUT_SYNTAX :
					  CHAN_LOGOUT_SERVADMIN_SYNTAX));
	} else if (!(ci = cs_findchan(chan))) {
		notice_lang(s_ChanServ, u, CHAN_X_NOT_REGISTERED, chan);
	} else if (!is_servadmin && (ci->flags & CI_VERBOTEN)) {
		notice_lang(s_ChanServ, u, CHAN_X_FORBIDDEN, chan);
	} else if (nick && !(u2 = finduser(nick))) {
		notice_lang(s_ChanServ, u, NICK_X_NOT_IN_USE, nick);
	} else if (!is_servadmin && u2 != u && !is_real_founder(u, ci)) {
		notice_lang(s_ChanServ, u, ACCESS_DENIED);
	/* Since founders can not logout we should tell them -katsklaw */
	} else if (u2 == u && is_real_founder(u, ci)) {
	notice_lang(s_ChanServ, u, CHAN_LOGOUT_FOUNDER_FAILED, chan);
	} else {
		if (u2) {
			make_unidentified(u2, ci);
			notice_lang(s_ChanServ, u, CHAN_LOGOUT_SUCCEEDED, nick, chan);
			alog("%s: User %s!%s@%s has been logged out of channel %s.",
				 s_ChanServ, u2->nick, u2->username, u2->host, chan);
		} else {
			int i;
			for (i = 0; i < 1024; i++)
				for (u2 = userlist[i]; u2; u2 = u2->next)
					make_unidentified(u2, ci);
			notice_lang(s_ChanServ, u, CHAN_LOGOUT_ALL_SUCCEEDED, chan);
			alog("%s: All users identified have been logged out of channel %s.", s_ChanServ, chan);
		}

	}
	return MOD_CONT;
}

void make_unidentified(User * u, ChannelInfo * ci)
{
	struct u_chaninfolist *uci;

	if (!u || !ci)
		return;

	for (uci = u->founder_chans; uci; uci = uci->next) {
		if (uci->chan == ci) {
			if (uci->next)
				uci->next->prev = uci->prev;
			if (uci->prev)
				uci->prev->next = uci->next;
			else
				u->founder_chans = uci->next;
			delete uci;
			break;
		}
	}
}

MODULE_INIT("cs_logout", CSLogout)