/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set et sw=2 ts=2: */
/***************************************************************************
 *            luapraxisd.cc
 *
 *  Wed Apr 27 11:59:53 CEST 2011
 *  Copyright 2011 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of Pracro.
 *
 *  Pracro 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.
 *
 *  Pracro 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 Pracro; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "luapraxisd.h"

#include "praxisd.h"

#include <lauxlib.h>
#include <strings.h>

#include "debug.h"

#define luaL_checkbool(L, i) \
  (lua_isboolean(L,i) ? lua_toboolean(L,i) : luaL_checkint(L,i))

typedef struct px_userdata {
  Praxisd *px;
} px_userdata;

static int px_addcave(lua_State *L)
{
  px_userdata *pxu;
  pxu = (px_userdata *)luaL_checkudata(L, 1, "Praxisd");
  luaL_argcheck(L, pxu, 1, "Praxisd expected");

  const char *cpr = luaL_checkstring(L, 2);
  const char *cave = luaL_checkstring(L, 3);

  std::string sogeord;
  std::string sogetxt;

  std::vector<Praxisd::cave_t> cavelist = pxu->px->diverse_get_cave("");
  std::vector<Praxisd::cave_t>::iterator i = cavelist.begin();
  while(i != cavelist.end()) {
    Praxisd::cave_t &c = *i;
    if(strcasecmp(cave, c.cave.c_str()) == 0) {
      pxu->px->add_sogeord(cpr, c.sogenr, "");
      return 0;
    }
    i++;
  }

  pxu->px->add_sogeord(cpr, "CA0003", cave); // CA0003 == 'ANDET'

  return 0;
}

static int px_getcave(lua_State *L)
{
  px_userdata *pxu;
  pxu = (px_userdata *)luaL_checkudata(L, 1, "Praxisd");
  luaL_argcheck(L, pxu, 1, "Praxisd expected");

  const char *cpr = luaL_checkstring(L, 2);

  std::vector<Praxisd::cave_t> cavelist;

  Praxisd::patient_t pat = pxu->px->patient_get_by_cpr(cpr);
  std::vector<Praxisd::sogeord_t>::iterator i = pat.sogeord.begin();
  while(i != pat.sogeord.end()) {
    Praxisd::sogeord_t &s = *i;
    if(s.sogenr[0] == 'C') {
      std::string csogenr = s.sogenr.substr(1, s.sogenr.length() - 1);
      std::vector<Praxisd::cave_t> cl = pxu->px->diverse_get_cave(csogenr);
      if(cl.size() == 1) {
        if(cl[0].cave == "ANDET") cl[0].cave = s.sogetxt;
        cavelist.push_back(cl[0]);
      }
    }

    i++;
  }

  lua_createtable(L, 0, cavelist.size());
  int top = lua_gettop(L);

  for(size_t i = 0; i < cavelist.size(); i++) {
    lua_pushstring(L, cavelist[i].cave.c_str());
    lua_rawseti(L, top, i);
  }

  return 1;
}

static int px_cavelist(lua_State *L)
{
  px_userdata *pxu;
  pxu = (px_userdata *)luaL_checkudata(L, 1, "Praxisd");
  luaL_argcheck(L, pxu, 1, "Praxisd expected");

  const char *sogenr = luaL_checkstring(L, 2);

  std::vector<Praxisd::cave_t> cavelist = pxu->px->diverse_get_cave(sogenr);

  lua_createtable(L, 0, cavelist.size());
  int top = lua_gettop(L);

  for(size_t i = 0; i < cavelist.size(); i++) {
    lua_pushstring(L, cavelist[i].cave.c_str());
    lua_rawseti(L, top, i);
  }

  return 1;
}

static int px_new(lua_State *L)
{
  const char *host = luaL_checkstring(L, 1);
  int port = luaL_checknumber(L, 2);

  px_userdata *pxu;
  pxu = (px_userdata *)lua_newuserdata(L, sizeof(px_userdata));

  luaL_getmetatable(L, "Praxisd");
  lua_setmetatable(L, -2);

  pxu->px = new Praxisd(host, port);

  return 1;
}

static int px_gc(lua_State *L)
{
  px_userdata *pxu;

  pxu = (px_userdata *)luaL_checkudata(L, 1, "Praxisd");
  luaL_argcheck(L, pxu, 1, "Praxisd expected");

  delete pxu->px;

  return 0;
}

static const struct luaL_Reg px_meths[] = {
  {"__gc" ,px_gc},
  {"cavelist", px_cavelist},
  {"getcave", px_getcave},
  {"addcave", px_addcave},
  {NULL, NULL}
};

static const struct luaL_reg px_funcs[] = {
  {"new", px_new},
  {NULL, NULL}
};

void register_praxisd(lua_State *L)
{
  luaL_newmetatable(L, "Praxisd");
  lua_pushliteral(L, "__index");
  lua_pushvalue(L, -2);
  lua_rawset(L, -3);
  luaL_register(L, NULL, px_meths);
  luaL_openlib (L, "Praxisd", px_funcs, 0);
}

#ifdef TEST_LUAPRAXISD
//deps: praxisd.cc debug.cc saxparser.cc log.cc
//cflags: -I.. $(LUA_CFLAGS) $(CURL_CFLAGS) $(EXPAT_CFLAGS)
//libs: $(LUA_LIBS) $(CURL_LIBS) $(EXPAT_LIBS)
#include "test.h"

TEST_BEGIN;

lua_State *L = luaL_newstate();
if(L == NULL) {
  ERR(luaresume, "Could not create LUA state.\n");
}

luaL_openlibs(L);               

register_praxisd(L);

/////
std::string program =
  "px = Praxisd.new('localhost', 10000)\n"
  "cl = px:cavelist('')\n"
  "for i=1,#cl do\n"
  "  print(cl[i])\n"
  "end\n"
  "\n"
  "--pcl = px:addcave('1505050505', 'LUMIGAN')\n"
  "\n"
  "pcl = px:addcave('1505050505', os.date('%H%M%S'))\n"
  "\n"
  "pcl = px:getcave('1505050505')\n"
  "for i=1,#pcl do\n"
  "  print('p: ' .. pcl[i])\n"
  "end\n"
  ;

//int top = lua_gettop(L);

if(luaL_loadbuffer(L, program.c_str(), program.size(), "luapraxisd test")) {
  ERR(luaresume, "loadbufer: %s\n", lua_tostring(L, lua_gettop(L)));
}

if(lua_pcall(L, 0, LUA_MULTRET, 0)) {
  ERR(luaresume, "pcall: %s\n" , lua_tostring(L, lua_gettop(L)));
}
/*
if(top != lua_gettop(L) - 1) {
  ERR(luaresume, "Program did not return a single value.\n");
}

if(lua_isstring(L, lua_gettop(L)) == false) {
  ERR(luaresume, "Program did not return a string value.\n");
}

std::string res = lua_tostring(L, lua_gettop(L));
lua_pop(L, 1);
*/
lua_close(L);

TEST_END;

#endif/*TEST_LUAPRAXISD*/