/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_map.c: Sends an Undernet compatible map to a user.
 *
 *  Copyright (C) 2002 by the past and present ircd coders, and others.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 *  $Id: m_map.c,v 1.2 2002/10/15 07:30:08 fishwaldo Exp $
 */

#include "stdinc.h"
#include "client.h"
#include "modules.h"
#include "handlers.h"
#include "numeric.h"
#include "send.h"
#include "s_conf.h"

#define USER_COL       50 /* display | Users: %d at col 50 */

static void m_map(struct Client *client_p, struct Client *source_p,
                    int parc, char *parv[]);
static void mo_map(struct Client *client_p, struct Client *source_p,
                    int parc, char *parv[]);
static void dump_map(struct Client *client_p,struct Client *root, char *pbuf);

struct Message map_msgtab = {
  "MAP", 0, 0, 0, 0, MFLG_SLOW, 0,
  {m_unregistered, m_map, m_ignore, mo_map}
};

#ifndef STATIC_MODULES
void _modinit(void)
{
  mod_add_cmd(&map_msgtab);
}

void _moddeinit(void)
{
  mod_del_cmd(&map_msgtab);
}

const char *_version = "$Revision: 1.2 $";
#endif

static char buf[BUFSIZE];

/* m_map
**	parv[0] = sender prefix
*/
static void m_map(struct Client *client_p, struct Client *source_p,
                    int parc, char *parv[])
{
  if (!ConfigServerHide.flatten_links)
  {
    dump_map(client_p,&me,buf);
    sendto_one(client_p, form_str(RPL_MAPEND), me.name, client_p->name);
    return;
  }

  m_not_oper(client_p,source_p,parc,parv);
  return;
}

/*
** mo_map
**      parv[0] = sender prefix
*/
static void mo_map(struct Client *client_p, struct Client *source_p,
                    int parc, char *parv[])
{
  dump_map(client_p,&me,buf);
  sendto_one(client_p, form_str(RPL_MAPEND), me.name, client_p->name);
}

/*
** dump_map
**   dumps server map, called recursively.
*/
static void dump_map(struct Client *client_p,struct Client *root_p, char *pbuf)
{
  int cnt = 0, i = 0, len;
  int users = 0;
  struct Client *server_p,*user_p;
        
  *pbuf= '\0';

  if (root_p->hidden_server && !IsOper(client_p)) {
  	goto nextserver;
  }
  strncat(pbuf,root_p->name,BUFSIZE - ((size_t) pbuf - (size_t) buf));
  len = strlen(buf);
  buf[len] = ' ';
	
  if (len < USER_COL)
  {
     for (i = len+1; i < USER_COL; i++)
     {
       buf[i] = '-';
     }
  }
	
  /* FIXME: add serv->usercnt */
  for( user_p = root_p->serv->users; user_p; user_p = user_p->lnext )
    users++;
        
  snprintf(buf + USER_COL, BUFSIZE - USER_COL,
           " | Users: %5d (%4.1f%%)", users,
           100 * (float) users / (float) Count.total);
        
  sendto_one(client_p, form_str(RPL_MAP),me.name,client_p->name,buf);
nextserver:      
  if ((server_p = root_p->serv->servers))
  {
    for (; server_p; server_p = server_p->lnext)
    {
      cnt++;
    }
    
    if (cnt)
    {
      if (pbuf > buf + 3)
      {
        pbuf[-2] = ' ';
        if (pbuf[-3] == '`')
          pbuf[-3] = ' ';
      }
    }
  }
  for (i = 1,server_p = root_p->serv->servers; server_p; server_p=server_p->lnext)
  {
    *pbuf = ' ';
    if ((i < cnt) && (!server_p->lnext->hidden_server && !IsOper(client_p)))
      *(pbuf + 1) = '|';
    else
      *(pbuf + 1) = '`';
      
    *(pbuf + 2) = '-';
    *(pbuf + 3) = ' ';
    dump_map(client_p,server_p,pbuf+4);
 
    i++;
   }
}