/*
 * NNChat - Custom chat client for NewbieNudes.com chatrooms
 * Written by Matti 'ccr' Hämäläinen
 * (C) Copyright 2008-2011 Tecnic Software productions (TNSP)
 */
#ifndef LIBNNCHAT_H
#define LIBNNCHAT_H

#include <stdio.h>
#include <unistd.h>
#ifdef __WIN32
#include <windows.h>
#include <winsock.h>
#else
#include <sys/select.h>
#include <sys/socket.h>
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#include <arpa/inet.h>
#include <netdb.h>
#endif
#include <sys/types.h>
#include <time.h>
#include <errno.h>
#include "th_string.h"

#define NN_TMPBUF_SIZE    (4096)
#define NN_ALLOC_SIZE     (128)
#define NN_CONNBUF_SIZE   (64 * 1024)
#define NN_NUM_BUCKETS    (256)
#define NN_DELAY_USEC     (15 * 1000)

typedef struct {
    ssize_t pos, len, size;
    char *data;
} nn_editbuf_t;


typedef struct _nn_user_t {
    char *name;
    time_t lastspoke, joined;
    struct _nn_user_t *next;
} nn_user_t;


typedef struct {
    nn_user_t *buckets[NN_NUM_BUCKETS];
} nn_userhash_t;

enum {
    NN_CONN_UNINIT = 0,
    NN_CONN_OPEN,
    NN_CONN_CLOSED
};

typedef struct _nn_conn_t {
    int socket;
    int port;
    struct in_addr address;
    fd_set sockfds;

    void (*errfunc)(struct _nn_conn_t *conn, const char *fmt, va_list ap);
    void (*msgfunc)(struct _nn_conn_t *conn, const char *fmt, va_list ap);

    int err;
    int status;
    
    char buf[NN_CONNBUF_SIZE + 16];
    char *ptr;
    ssize_t got;
} nn_conn_t;


const char *nn_get_errstr(int err);
BOOL        nn_network_init(void);
void        nn_network_close(void);

nn_conn_t * nn_conn_open(struct in_addr *addr, const int port);
void        nn_conn_close(nn_conn_t *);
BOOL        nn_conn_pull(nn_conn_t *);
BOOL        nn_conn_send_buf(nn_conn_t *, const char *buf, const size_t len);
BOOL        nn_conn_send_msg(nn_conn_t *, const char *user, const char *fmt, ...);
BOOL        nn_conn_check(nn_conn_t *);


nn_userhash_t *nn_userhash_new(void);
nn_user_t * nn_userhash_foreach(const nn_userhash_t *, int (*func)(const nn_user_t *));
nn_user_t * nn_user_match(const nn_userhash_t *list, const char *str, const char *current, BOOL again);
int         nn_userhash_insert(nn_userhash_t *, const char *name);
int         nn_userhash_delete(nn_userhash_t *, const char *name);
void        nn_userhash_free(nn_userhash_t *);
void        nn_user_free(nn_user_t *);
void        nn_user_free_list(nn_user_t *);
nn_user_t * nn_user_copy(const nn_user_t *src);
nn_user_t * nn_user_find(const nn_userhash_t *list, const char *name);


char *      nn_encode_str1(const char *str);
char *      nn_decode_str1(const char *str);
char *      nn_encode_str2(const char *str);
char *      nn_decode_str2(const char *str);
char *      nn_strip_tags(const char *str);
char *      nn_dbldecode_str(const char *str);
char *      nn_dblencode_str(const char *str);

char *      nn_username_encode(char *str);
char *      nn_username_decode(char *str);


int         nn_editbuf_write(nn_editbuf_t *buf, ssize_t pos, int ch);
int         nn_editbuf_insert(nn_editbuf_t *buf, ssize_t pos, int ch);
int         nn_editbuf_delete(nn_editbuf_t *buf, ssize_t pos);
void        nn_editbuf_clear(nn_editbuf_t *buf);
nn_editbuf_t * nn_editbuf_new(ssize_t n);
void        nn_editbuf_free(nn_editbuf_t *buf);
nn_editbuf_t * nn_editbuf_copy(nn_editbuf_t *src);
void        nn_editbuf_setpos(nn_editbuf_t *buf, ssize_t pos);
char *      nn_editbuf_get_string(nn_editbuf_t *buf, ssize_t start, ssize_t end);


#endif