#include <arpa/inet.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <unistd.h>

#include "tsocket.h"

struct tsocket *tsocket_create()
{
    int fd = socket(AF_INET, SOCK_STREAM, 0);
    if (fd == -1)
        return NULL;

    struct tsocket *sock = malloc(sizeof(*sock));
    sock->fd = fd;

    return sock;
}

int tsocket_bind(struct tsocket *sock, const char *addr, int hostport)
{
    struct sockaddr_in sock_addr;
    sock_addr.sin_family = AF_INET;
    sock_addr.sin_addr.s_addr = inet_addr(addr);
    sock_addr.sin_port = htons(hostport);

    sock->addr = addr;
    sock->port = hostport;

    return bind(sock->fd, (struct sockaddr *)&sock_addr, sizeof(sock_addr));
}

int tsocket_listen(struct tsocket *sock)
{
    return listen(sock->fd, SOMAXCONN);
}

struct tsocket *tsocket_accept(struct tsocket *sock)
{
    struct sockaddr_in addr;
    socklen_t addr_len = sizeof(addr);

    int fd = accept(sock->fd, (struct sockaddr *)&addr, &addr_len);
    if (fd == -1)
        return NULL;

    struct tsocket *conn_sock = malloc(sizeof(*conn_sock));
    conn_sock->fd = fd;
    conn_sock->addr = inet_ntoa(addr.sin_addr);
    conn_sock->port = ntohs(addr.sin_port);

    return conn_sock;
}

void tsocket_destroy(struct tsocket *sock)
{
    close(sock->fd);
    free(sock);
}