/*
 * Copyright (c) 2026, Chloe Moffett
 * Provided under the BSD-3 clause
 */

#include <sys/socket.h>
#include <netinet/in.h>
#include <stdint.h>
#include <stdio.h>
#include <strings.h>
#include <errno.h>
#include <unistd.h>
#include "endpoint/server.h"
#include "endpoint/common.h"

int
endpoint_server_init(struct endpoint_server *svp)
{
    struct sockaddr_in saddr;
    int error;

    if (svp == NULL) {
        errno = EINVAL;
        return -1;
    }

    svp->sockfd = socket(AF_INET, SOCK_STREAM, 0);
    if (svp->sockfd < 0) {
        perror("socket");
        return -1;
    }

    /* Assign the address */
    bzero(&saddr, sizeof(saddr));
    saddr.sin_family = AF_INET;
    saddr.sin_port = htons(SERVER_PORT);
    saddr.sin_addr.s_addr = INADDR_ANY;

    /* Try to bind it */
    error = bind(svp->sockfd, (struct sockaddr *)&saddr, sizeof(saddr));
    if (error < 0) {
        perror("bind");
        close(svp->sockfd);
        svp->sockfd = -1;
        return -1;
    }

    /* Now mark it is active and listening */
    error = listen(svp->sockfd, SERVER_BACKLOG);
    if (error < 0) {
        perror("listen");
        close(svp->sockfd);
        svp->sockfd = -1;
        return -1;
    }

    return 0;
}

int
endpoint_server_close(struct endpoint_server *svp)
{
    if (svp == NULL) {
        errno = EINVAL;
        return -1;
    }

    close(svp->sockfd);
    return 0;
}