/*
 core.c : irssi

    Copyright (C) 1999-2000 Timo Sirainen

    This program 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; either version 2 of the License, or
    (at your option) any later version.

    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, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include "module.h"
#include <signal.h>

#include "pidwait.h"
#include "misc.h"

#include "net-disconnect.h"
#include "net-sendbuffer.h"
#include "signals.h"
#include "settings.h"

#include "chat-protocols.h"
#include "servers.h"
#include "chatnets.h"
#include "commands.h"
#include "expandos.h"
#include "write-buffer.h"
#include "log.h"
#include "rawlog.h"
#include "ignore.h"

#include "channels.h"
#include "queries.h"
#include "nicklist.h"
#include "nickmatch-cache.h"

void chat_commands_init(void);
void chat_commands_deinit(void);

int irssi_gui;

static GSList *dialog_type_queue, *dialog_text_queue;

static void read_signals(void)
{
#ifndef WIN32
	int signals[] = {
		SIGHUP, SIGINT, SIGQUIT, SIGTERM,
		SIGALRM, SIGUSR1, SIGUSR2
	};
	char *signames[] = {
		"hup", "int", "quit", "term",
		"alrm", "usr1", "usr2"
	};

	const char *ignores;
	struct sigaction act;
        int n;

	ignores = settings_get_str("ignore_signals");

	sigemptyset (&act.sa_mask);
	act.sa_flags = 0;

	for (n = 0; n < sizeof(signals)/sizeof(signals[0]); n++) {
		act.sa_handler = find_substr(ignores, signames[n]) ?
			SIG_IGN : SIG_DFL;
		sigaction(signals[n], &act, NULL);
	}
#endif
}

static void sig_gui_dialog(const char *type, const char *text)
{
	dialog_type_queue = g_slist_append(dialog_type_queue, g_strdup(type));
	dialog_text_queue = g_slist_append(dialog_text_queue, g_strdup(text));
}

static void sig_init_finished(void)
{
	GSList *type, *text;

        signal_remove("gui dialog", (SIGNAL_FUNC) sig_gui_dialog);
	signal_remove("irssi init finished", (SIGNAL_FUNC) sig_init_finished);

	/* send the dialog texts that were in queue before irssi
	   was initialized */
	type = dialog_type_queue;
        text = dialog_text_queue;
	for (; text != NULL; text = text->next, type = type->next) {
		signal_emit("gui dialog", 2, type->data, text->data);
		g_free(type->data);
                g_free(text->data);
	}
        g_slist_free(dialog_type_queue);
        g_slist_free(dialog_text_queue);
}

void core_init(void)
{
	dialog_type_queue = NULL;
	dialog_text_queue = NULL;

	modules_init();
#ifndef WIN32
	pidwait_init();
#endif

	net_disconnect_init();
	net_sendbuffer_init();
	signals_init();

	signal_add_first("gui dialog", (SIGNAL_FUNC) sig_gui_dialog);
	signal_add_first("irssi init finished", (SIGNAL_FUNC) sig_init_finished);

	settings_init();
	commands_init();
        nickmatch_cache_init();

	chat_protocols_init();
	chatnets_init();
        expandos_init();
	ignore_init();
	servers_init();
        write_buffer_init();
	log_init();
	rawlog_init();

	channels_init();
	queries_init();
	nicklist_init();

	chat_commands_init();

	settings_add_str("misc", "ignore_signals", "");
	signal_add("setup changed", (SIGNAL_FUNC) read_signals);
	read_signals();

        settings_check();
}

void core_deinit(void)
{
	signal_remove("setup changed", (SIGNAL_FUNC) read_signals);

	chat_commands_deinit();

	nicklist_deinit();
	queries_deinit();
	channels_deinit();

	rawlog_deinit();
	log_deinit();
        write_buffer_deinit();
	servers_deinit();
	ignore_deinit();
        expandos_deinit();
	chatnets_deinit();
	chat_protocols_deinit();

        nickmatch_cache_deinit();
	commands_deinit();
	settings_deinit();
	signals_deinit();
	net_sendbuffer_deinit();
	net_disconnect_deinit();

#ifndef WIN32
	pidwait_deinit();
#endif
	modules_deinit();
}