/*
 * Copyright (c) 2026 Nakidai Perumenei <nakidai at disroot dot org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "ircd.h"

#include <stddef.h>
#include <string.h>


int
parse_message(char *buf, struct Message *msg)
{
	char *t, *next;
	size_t i;

	memset(msg, 0, sizeof(*msg));

	if (*buf == ':')
	{
		t = ++buf;
		next = strchr(buf, ' ');
		if (!next)
			return 1;
		*next++ = 0;
		buf = next;

		next = strchr(t, '@');
		if (next)
		{
			*next++ = 0;
			if (!*t)
				return 1;

			msg->nick = t;
			t = next;

			next = strchr(msg->nick, '!');
			if (next)
			{
				*next++ = 0;
				if (!*msg->nick || !*next)
					return 1;
				msg->user = next;
			}
		}
		if (!*t)
			return 1;
		msg->host = t;
	}

	msg->command = buf;
	t = strstr(buf, " :");
	if (t)
		*((t += 2) - 2) = 0;
	for (i = 0; i < PARAM_MAX - !!t; ++i, buf = next)
	{
		next = strchr(buf, ' ');
		if (!next)
			break;
		*next++ = 0;
		msg->params[i] = next;
	}
	if (strchr(buf, ' '))
		return 1;
	if (t)
		msg->params[i] = t;
	return 0;
}