/*
 * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of Hyra nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef LIBOSTP_SERVER_H_
#define LIBOSTP_SERVER_H_

#include <sys/select.h>
#include <ostp/session.h>
#include <pthread.h>
#include <stddef.h>
#include <stdint.h>

#define MAX_CLIENTS 32

struct ostp_client {
    struct ostp_session session;
    char host[IP_LEN_MAX];
    int sockfd;
    pthread_t td;
    volatile uint8_t authed : 1;
};

struct ostp_listener {
    int(*on_recv)(struct ostp_client *c, const void *buf, size_t len);
    int(*on_connect)(struct ostp_client *c);
    int port;

    /* -- Private -- */
    struct ostp_client clients[MAX_CLIENTS];
    size_t client_count;
    int serv_sockfd;
    fd_set client_fds;
};

void listener_init(struct ostp_listener *lp);
int listener_bind(struct ostp_listener *lp);
int listener_poll(struct ostp_listener *lp);
void listener_cleanup(struct ostp_listener *lp);
void listener_close(struct ostp_listener *lp, struct ostp_client *c);
int listener_clients(struct ostp_listener *lp, struct ostp_client **res);

#endif  /* !LIBOSTP_SERVER_H_ */