/*
 *  anylike
 *
 *  anylike is a ...
 *  
 *
 *  Copyright (C) 2009-2010 Markus Grueneis <gimpf@anylike.org>
 *                          Christian Pointner <equinox@anylike.org>
 *
 *  This file is part of anylike.
 *
 *  anylike 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 3 of the License, or
 *  any later version.
 *
 *  anylike 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 anylike. If not, see <http://www.gnu.org/licenses/>.
 */

#include <lua50/lua.h>

#include <stdlib.h>
#include "log.h"

#include "l_log.h"

static int l_log_init(lua_State *L)
{
  log_init();
  return 0;
}

static int l_log_close(lua_State *L)
{
  log_close();
  return 0;
}

static int l_log_add_target(lua_State *L)
{
  int ret = log_add_target(luaL_checklstring(L,1,NULL));
  if(ret) {
    lua_pushboolean(L, 0);
    switch(ret) {
    case -2: lua_pushstring(L, "memory error at log_add_target"); break;
    case -3: lua_pushstring(L, "unknown log target"); break;
    case -4: lua_pushstring(L, "this log target is only allowed once"); break;
    default: lua_pushstring(L, "syntax error"); break;
    }
    return 2;
  } 

  lua_pushboolean(L, 1);
  return 1;
}

/* void log_printf(log_prio_t prio, const char* fmt, ...); */
static int l_log_print(lua_State *L)
{
  const char* prio_str = luaL_checklstring(L,1,NULL);
  log_prio_t prio;
  if(prio_str) {
    if(!strncmp("ERROR", prio_str, 6))
      prio = ERROR;
    else if(!strncmp("WARNING", prio_str, 6))
      prio = WARNING;
    else if(!strncmp("NOTICE", prio_str, 6))
      prio = NOTICE;
    else if(!strncmp("INFO", prio_str, 6))
      prio = INFO;
    else if(!strncmp("DEBUG", prio_str, 6))
      prio = DEBUG;
    else {
      lua_pushstring(L, "invalid log priority");
      lua_error(L);
    }
  }
  else {
    lua_pushstring(L, "invalid log priority");
    lua_error(L);
  }

  log_printf(prio, "%s", luaL_checklstring(L, 2, NULL));
  return 0;
}

/* void log_print_hex_dump(log_prio_t prio, const u_int8_t* buf, u_int32_t len); */

static const struct luaL_reg loglib [] = {
  { "init", l_log_init }, 
  { "close", l_log_close }, 
  { "add_target", l_log_add_target },
  { "print", l_log_print },
  { NULL, NULL }
};


LUALIB_API int luaopen_log (lua_State *L) {
  luaL_openlib(L, "log", loglib, 0);
  return 1;
}