/*
 * EveryBuddy 
 *
 * Copyright (C) 2003, the Ayttm team
 * 
 * Ayttm is derivative of Everybuddy
 * Copyright (C) 1999-2002, Torrey Searle <tsearle@uci.edu>
 *
 * 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
 *
 *Modified By Ivor Cave on 29 Apr 2003 to make it more l337!!! :)
 *email ivor@happyfragger.com
 */

#ifdef __MINGW32__
#define __IN_PLUGIN__
#endif

#include "intl.h"

#include <stdlib.h>
#include <string.h>

#include "externs.h"
#include "plugin_api.h"
#include "prefs.h"
#include "conversation.h"

/*******************************************************************************
 *                             Begin Module Code
 ******************************************************************************/
/*  Module defines */
#ifndef USE_POSIX_DLOPEN
#define plugin_info middle_LTX_plugin_info
#define plugin_init middle_LTX_plugin_init
#define plugin_finish middle_LTX_plugin_finish
#define module_version middle_LTX_module_version
#endif

/* Function Prototypes */
static char *plstripHTML(Conversation *conv, const char *in);
static int middle_init(void);
static int middle_finish(void);

static int s_doLeet = 0;
static int s_doExtremeLeet = 0;

static int s_ref_count = 0;

/*  Module Exports */
PLUGIN_INFO plugin_info = {
	PLUGIN_FILTER,
	"L33t-o-matic",
	"Turns all incoming and outgoing messages into l33t-speak",
	"$Revision: 1.12 $",
	"$Date: 2009/09/17 12:04:59 $",
	&s_ref_count,
	middle_init,
	middle_finish,
	NULL
};

/* End Module Exports */

unsigned int module_version()
{
	return CORE_VERSION;
}

static int middle_init(void)
{
	input_list *il = calloc(1, sizeof(input_list));
	plugin_info.prefs = il;

	il->widget.checkbox.value = &s_doLeet;
	il->name = "s_doLeet";
	il->label = strdup(_("Enable L33t-speak conversion"));
	il->type = EB_INPUT_CHECKBOX;

	il->next = calloc(1, sizeof(input_list));
	il = il->next;
	il->widget.checkbox.value = &s_doExtremeLeet;
	il->name = "s_doExtremeLeet";
	il->label = strdup(_("Enable 3x7r3m3 L33t-speak [implies previous]"));
	il->type = EB_INPUT_CHECKBOX;

	eb_debug(DBG_MOD, "L33tSp33k initialised\n");

	outgoing_message_filters_local =
		l_list_prepend(outgoing_message_filters_local, &plstripHTML);
	outgoing_message_filters_remote =
		l_list_prepend(outgoing_message_filters_remote, &plstripHTML);
	incoming_message_filters =
		l_list_append(incoming_message_filters, &plstripHTML);

	return (0);
}

static int middle_finish(void)
{
	eb_debug(DBG_MOD, "L33tSp33k shutting down\n");
	outgoing_message_filters_local =
		l_list_remove(outgoing_message_filters_local, &plstripHTML);
	outgoing_message_filters_remote =
		l_list_remove(outgoing_message_filters_remote, &plstripHTML);
	incoming_message_filters =
		l_list_remove(incoming_message_filters, &plstripHTML);

	while (plugin_info.prefs) {
		input_list *il = plugin_info.prefs->next;
		free(plugin_info.prefs);
		plugin_info.prefs = il;
	}

	return (0);
}

/*******************************************************************************
 *                             End Module Code
 ******************************************************************************/
static char *plstripHTML(Conversation *conv, const char *in)
{
	int pos = 0;
	int post = 0;
	char *s = g_strdup(in);
	char *t = NULL;

	if (!s_doLeet && !s_doExtremeLeet)
		return (s);

	t = g_new0(char, 3*strlen(s));

	while (s[pos] != '\0') {
		switch (s[pos]) {
		case 'a':
		case 'A':
			t[post] = '4';
			break;

		case 'c':
		case 'C':
			t[post] = '(';
			break;

		case 'e':
		case 'E':
			t[post] = '3';
			break;

		case 'l':
		case 'L':
			t[post] = '1';
			break;

		case 's':
		case 'S':
			t[post] = '5';
			break;

		case 't':
		case 'T':
			t[post] = '7';
			break;

		default:
			t[post] = s[pos];
			break;
		}

		if (s_doExtremeLeet) {
			switch (s[pos]) {
			case 'd':
			case 'D':
				t[post++] = '|';
				t[post] = ')';
				break;

			case 'h':
			case 'H':
				t[post++] = '|';
				t[post++] = '-';
				t[post] = '|';
				break;

			case 'k':
			case 'K':
				t[post++] = '|';
				t[post] = '<';
				break;

			case 'm':
			case 'M':
				t[post++] = '/';
				t[post++] = 'v';
				t[post] = '\\';
				break;

			case 'n':
			case 'N':
				t[post++] = '|';
				t[post++] = '\\';
				t[post] = '|';
				break;

			case 'o':
			case 'O':
				t[post++] = '(';
				t[post] = ')';
				break;

			case 'v':
			case 'V':
				t[post++] = '\\';
				t[post] = '/';
				break;

			case 'w':
			case 'W':
				t[post++] = '\\';
				t[post++] = '^';
				t[post] = '/';
				break;

			default:
				break;
			}
		}

		pos++;
		post++;
	}

	t[post] = '\0';

	g_free(s);

	return (t);
}