tg/python-tg.c

/*
    This file is part of telegram-cli.

    Telegram-cli 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.

    Telegram-cli 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 telegram-cli.  If not, see <http://www.gnu.org/licenses/>.

    Copyright Vitaly Valtman 2013-2015
    Copyright Vincent Castellano 2015
*/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#ifdef USE_PYTHON
#include "python-tg.h"

#include <string.h>
#include <stdlib.h>


#include <Python.h>
#ifdef EVENT_V2
#include <event2/event.h>
#else
#include <event.h>
#include "event-old.h"
#endif

//#include "interface.h"
//#include "auto/constants.h"
#include <tgl/tgl.h>
#include "interface.h"

#include <assert.h>
extern int verbosity;
extern struct tgl_state *TLS;

static int have_file;

// Python update function callables
PyObject *_py_binlog_end;
PyObject *_py_diff_end;
PyObject *_py_our_id;
PyObject *_py_new_msg;
PyObject *_py_secret_chat_update;
PyObject *_py_user_update;
PyObject *_py_chat_update;

// Python callback callables
PyObject *_py_empty_cb;
PyObject *_py_contact_list_cb;
PyObject *_py_dialog_list_cb;
PyObject *_py_msg_cb;
PyObject *_py_msg_list_cb;
PyObject *_py_file_cb;
PyObject *_py_chat_cb;
PyObject *_py_secret_chat_cb;
PyObject *_py_user_cb;
PyObject *_py_str_cb;


PyObject* get_user (tgl_peer_t *P);
PyObject* get_peer (tgl_peer_id_t id, tgl_peer_t *P);

void py_add_string_field (PyObject* dict, char *name, const char *value) {
  assert (PyDict_Check(dict));
  assert (name && strlen (name));
  if (!value || !strlen (value)) { return; }
  PyDict_SetItemString (dict, name, PyString_FromString(value));
}

void py_add_string_field_arr (PyObject* list, int num, const char *value) {
  assert(PyList_Check(list));
  if (!value || !strlen (value)) { return; }
  if(num >= 0)
    PyList_SetItem (list, num, PyString_FromString (value));
  else // Append
    PyList_Append  (list, PyString_FromString (value));
}

void py_add_num_field (PyObject* dict, const char *name, double value) {
  assert (PyDict_Check(dict));
  assert (name && strlen (name));
  PyDict_SetItemString (dict, name, PyFloat_FromDouble(value));
}

PyObject* get_tgl_peer_type (int x) {
  PyObject *type;

  switch (x) {
  case TGL_PEER_USER:
    type = PyString_FromString("user");
    break;
  case TGL_PEER_CHAT:
    type = PyString_FromString("chat");
    break;
  case TGL_PEER_ENCR_CHAT:
    type = PyString_FromString("encr_chat");
    break;
  default:
    assert (0);
  }

  return type;
}

PyObject* get_user (tgl_peer_t *P) {
  PyObject *user;
  
  user = PyDict_New();
  if(user == NULL)
    assert(0); // TODO handle python exception

  py_add_string_field (user, "first_name",      P->user.first_name);
  py_add_string_field (user, "last_name",       P->user.last_name);
  py_add_string_field (user, "real_first_name", P->user.real_first_name);
  py_add_string_field (user, "real_last_name",  P->user.real_last_name);
  py_add_string_field (user, "phone",           P->user.phone);
  if (P->user.access_hash) {
    py_add_num_field (user, "access_hash",   1);
  }

  return user;
}

PyObject* get_chat (tgl_peer_t *P) {
  PyObject *chat, *members;

  chat = PyDict_New();
  if(chat == NULL)
    assert(0); // TODO handle python exception

  assert (P->chat.title);

  py_add_string_field (chat, "title",       P->chat.title);
  py_add_num_field (chat, "members_num", P->chat.users_num);
  if (P->chat.user_list) {
    members = PyList_New(P->chat.users_num);
    if(members == NULL)
      assert(0); // TODO handle python exception

    int i;
    for (i = 0; i < P->chat.users_num; i++) {
      tgl_peer_id_t id = TGL_MK_USER (P->chat.user_list[i].user_id);
      PyList_SetItem (members, i, get_peer(id, tgl_peer_get (TLS, id)));
    }
    PyDict_SetItemString (chat, "members", members);
  }

  return chat;
}

PyObject* get_encr_chat (tgl_peer_t *P) {
  PyObject *encr_chat, *user;

  encr_chat = PyDict_New();
  if(encr_chat == NULL)
    assert(0); // TODO handle python exception

  user = get_peer (TGL_MK_USER (P->encr_chat.user_id), tgl_peer_get (TLS, TGL_MK_USER (P->encr_chat.user_id)));
  PyDict_SetItemString (encr_chat, "user", user);
  
  return encr_chat;
}

PyObject* get_update_types (unsigned flags) {
  PyObject* types;
  types = PyList_New(0); 
  if(types == NULL)
    assert(0); // TODO handle python exception
  
  if (flags & TGL_UPDATE_CREATED) {
    py_add_string_field_arr(types, -1, "created");
  }  
  if (flags & TGL_UPDATE_DELETED) {
    py_add_string_field_arr(types, -1, "deleted");
  }  
  if (flags & TGL_UPDATE_PHONE) {
    py_add_string_field_arr(types, -1, "phone");
  }
  if (flags & TGL_UPDATE_CONTACT) {
    py_add_string_field_arr(types, -1, "contact");
  }
  if (flags & TGL_UPDATE_PHOTO) {
    py_add_string_field_arr(types, -1, "photo");
  }
  if (flags & TGL_UPDATE_BLOCKED) {
    py_add_string_field_arr(types, -1, "blocked");
  }
  if (flags & TGL_UPDATE_REAL_NAME) {
    py_add_string_field_arr(types, -1, "real_name");
  }
  if (flags & TGL_UPDATE_NAME) {
    py_add_string_field_arr(types, -1, "name");
  }
  if (flags & TGL_UPDATE_REQUESTED) {
    py_add_string_field_arr(types, -1, "requested");
  }
  if (flags & TGL_UPDATE_WORKING) {
    py_add_string_field_arr(types, -1, "working");
  }
  if (flags & TGL_UPDATE_FLAGS) {
    py_add_string_field_arr(types, -1, "flags");
  }
  if (flags & TGL_UPDATE_TITLE) {
    py_add_string_field_arr(types, -1, "title");
  }
  if (flags & TGL_UPDATE_ADMIN) {
    py_add_string_field_arr(types, -1, "admin");
  }
  if (flags & TGL_UPDATE_MEMBERS) {
    py_add_string_field_arr(types, -1, "members");
  }
  if (flags & TGL_UPDATE_ACCESS_HASH) {
    py_add_string_field_arr(types, -1, "access_hash");
  }
  if (flags & TGL_UPDATE_USERNAME) {
    py_add_string_field_arr(types, -1, "username");
  }
  return types;
}

PyObject* get_peer (tgl_peer_id_t id, tgl_peer_t *P) {
  PyObject *peer;

  peer = PyDict_New();
  if(peer == NULL)
    assert(0); // TODO handle python exception;

  PyDict_SetItemString (peer, "type", get_tgl_peer_type (tgl_get_peer_type(id)));

  if (!P || !(P->flags & FLAG_CREATED)) {
    PyObject *name;

    static char s[100];
    switch (tgl_get_peer_type (id)) {
    case TGL_PEER_USER:
      sprintf (s, "user#%d", tgl_get_peer_id (id));
      break;
    case TGL_PEER_CHAT:
      sprintf (s, "chat#%d", tgl_get_peer_id (id));
      break;
    case TGL_PEER_ENCR_CHAT:
      sprintf (s, "encr_chat#%d", tgl_get_peer_id (id));
      break;
    default:
      assert (0);
    }
    
    name = PyDict_New();
    if(name == NULL)
      assert(0); // TODO handle python exception;

    PyDict_SetItemString (name, "print_name", PyString_FromString(s));
    PyDict_SetItemString (peer, "peer", name);
  } else {
    PyObject *peer_obj;
    
    switch (tgl_get_peer_type (id)) {
    case TGL_PEER_USER:
      peer_obj = get_user (P);
      break;
    case TGL_PEER_CHAT:
      peer_obj = get_chat (P);
      break;
    case TGL_PEER_ENCR_CHAT:
      peer_obj = get_encr_chat (P);
      break;
    default:
      assert (0);
    }
    PyDict_SetItemString (peer, "peer", peer_obj);
  }

  return peer;
}

PyObject* get_media (struct tgl_message_media *M) {
  PyObject *media;

  media = PyDict_New();
  if(media == NULL)
    assert(0); // TODO handle python exception

  switch (M->type) {
  case tgl_message_media_photo:
  case tgl_message_media_photo_encr:
    py_add_string_field (media, "type", "photo");
    break;
  /*case tgl_message_media_video:
  case tgl_message_media_video_encr:
    lua_newtable (luaState);
    lua_add_string_field ("type", "video");
    break;
  case tgl_message_media_audio:
  case tgl_message_media_audio_encr:
    lua_newtable (luaState);
    lua_add_string_field ("type", "audio");
    break;*/
  case tgl_message_media_document:
  case tgl_message_media_document_encr:
    py_add_string_field (media, "type", "document");
    break;
  case tgl_message_media_unsupported:
    py_add_string_field (media, "type", "unsupported");
    break;
  case tgl_message_media_geo:
    py_add_string_field (media, "type", "geo");
    py_add_num_field (media, "longitude", M->geo.longitude);
    py_add_num_field (media, "latitude", M->geo.latitude);
    break;
  case tgl_message_media_contact:
    py_add_string_field (media, "type", "contact");
    py_add_string_field (media, "phone", M->phone);
    py_add_string_field (media, "first_name", M->first_name);
    py_add_string_field (media, "last_name", M->last_name);
    py_add_num_field (media, "user_id", M->user_id);
    break;
  default:
    py_add_string_field (media, "type", "unknown");
  }

  return media;
}

PyObject* get_message (struct tgl_message *M) {  
  assert (M);
  PyObject *msg;

  msg = PyDict_New();
  if(msg == NULL)
    assert(0); // TODO handle python exception

  static char s[30];
  snprintf (s, 30, "%lld", M->id);
  py_add_string_field (msg, "id", s);
  if (!(M->flags & FLAG_CREATED)) { return msg; }
  py_add_num_field (msg, "flags", M->flags);

  if (tgl_get_peer_type (M->fwd_from_id)) {
    PyDict_SetItemString(msg, "fwd_from", get_peer(M->fwd_from_id, tgl_peer_get (TLS, M->fwd_from_id)));
    py_add_num_field (msg, "fwd_date", M->fwd_date);
  }
 
  PyDict_SetItemString(msg, "from",    get_peer(M->from_id, tgl_peer_get (TLS, M->from_id)));
  PyDict_SetItemString(msg, "to",      get_peer(M->to_id, tgl_peer_get (TLS, M->to_id)));
  PyDict_SetItemString(msg, "out",     (M->out ? Py_True : Py_False));
  PyDict_SetItemString(msg, "unread",  (M->unread ? Py_True : Py_False));
  PyDict_SetItemString(msg, "service", (M->service ? Py_True : Py_False));
  PyDict_SetItemString(msg, "date",    PyLong_FromLong(M->date)); // TODO put this into PyDate object

  if (!M->service) { 
    if (M->message_len && M->message) {
      PyDict_SetItemString(msg, "text", PyString_FromStringAndSize(M->message, M->message_len));
    }
    if (M->media.type && M->media.type != tgl_message_media_none) {
      PyDict_SetItemString(msg, "media", get_media(&M->media));  
    }
  }

  return msg;
}

//void lua_binlog_end (void) {
//  if (!have_file) { return; }
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//  lua_getglobal (luaState, "on_binlog_replay_end");
//  assert (lua_gettop (luaState) == 1);
//
//  int r = lua_pcall (luaState, 0, 0, 0);
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//}
//
//void lua_diff_end (void) {
//  if (!have_file) { return; }
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//  lua_getglobal (luaState, "on_get_difference_end");
//  assert (lua_gettop (luaState) == 1);
//
//  int r = lua_pcall (luaState, 0, 0, 0);
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//}
//
void py_our_id (int id) {
//  if (!have_file) { return; }
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//  lua_getglobal (luaState, "on_our_id");
//  lua_pushnumber (luaState, id);
//  assert (lua_gettop (luaState) == 2);
//
//  int r = lua_pcall (luaState, 1, 0, 0);
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
}

void py_new_msg (struct tgl_message *M) {
  if (!have_file) { return; }
  PyObject *msg;
  PyObject *arglist, *result;

  msg = get_message (M);

  arglist = Py_BuildValue("O", msg);
  result = PyEval_CallObject(_py_new_msg, arglist);
  Py_DECREF(arglist);

  assert(result && PyString_Check(result)); // TODO handle python exception
  logprintf ("python: %s\n", PyString_AsString(result));
}

void py_secret_chat_update (struct tgl_secret_chat *C, unsigned flags) {
  if (!have_file) { return; }
  PyObject *peer, *types;
  PyObject *arglist, *result; 

  peer = get_peer (C->id, (void *)C);
  types = get_update_types (flags);

  arglist = Py_BuildValue("OO", peer, types);
  result = PyEval_CallObject(_py_secret_chat_update, arglist);
  Py_DECREF(arglist);

  assert(result && PyString_Check(result)); // TODO handle python exception
  logprintf ("python: %s\n", PyString_AsString(result));
}


void py_user_update (struct tgl_user *U, unsigned flags) {
//  if (!have_file) { return; }
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//  lua_getglobal (luaState, "on_user_update");
//  push_peer (U->id, (void *)U);
//  push_update_types (flags);
//  assert (lua_gettop (luaState) == 3);
//
//  int r = lua_pcall (luaState, 2, 0, 0);
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
}

void py_chat_update (struct tgl_chat *C, unsigned flags) {
//  if (!have_file) { return; }
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//  lua_getglobal (luaState, "on_chat_update");
//  push_peer (C->id, (void *)C);
//  push_update_types (flags);
//  assert (lua_gettop (luaState) == 3);
//
//  int r = lua_pcall (luaState, 2, 0, 0);
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
}
//
////extern tgl_peer_t *Peers[];
////extern int peer_num;
//
//#define MAX_LUA_COMMANDS 1000
//void *lua_ptr[MAX_LUA_COMMANDS];
//static int pos;
//
//static inline tgl_peer_t *get_peer (const char *s) { 
//  return tgl_peer_get_by_name (TLS, s);
//}
//  
//enum lua_query_type {
//  lq_contact_list,
//  lq_dialog_list,
//  lq_msg,
//  lq_send_typing,
//  lq_send_typing_abort,
//  lq_rename_chat,
//  lq_send_photo,
//  lq_chat_set_photo,
//  lq_set_profile_photo,
//  lq_set_profile_name,
//  lq_send_video,
//  lq_send_text,
//  lq_fwd,
//  lq_fwd_media,
//  lq_load_photo,
//  lq_load_video_thumb,
//  lq_load_video,
//  lq_chat_info,
//  lq_user_info,
//  lq_history,
//  lq_chat_add_user,
//  lq_chat_del_user,
//  lq_add_contact,
//  lq_del_contact,
//  lq_rename_contact,
//  lq_search,
//  lq_global_search,
//  lq_mark_read,
//  lq_create_secret_chat,
//  lq_create_group_chat,
//  lq_send_audio,
//  lq_send_document,
//  lq_send_file,
//  lq_load_audio,
//  lq_load_document,
//  lq_load_document_thumb,
//  lq_delete_msg,
//  lq_restore_msg,
//  lq_accept_secret_chat,
//  lq_send_contact,
//  lq_status_online,
//  lq_status_offline,
//  lq_send_location,
//  lq_extf
//};
//
//struct lua_query_extra {
//  int func;
//  int param;
//};
//
//void lua_empty_cb (struct tgl_state *TLSR, void *cb_extra, int success) {
//  assert (TLSR == TLS);
//  struct lua_query_extra *cb = cb_extra;
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->func);
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  lua_pushnumber (luaState, success);
//
//  assert (lua_gettop (luaState) == 3);
//
//  int r = lua_pcall (luaState, 2, 0, 0);
//
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->func);
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//
//  free (cb);
//}
//
//void lua_contact_list_cb (struct tgl_state *TLSR, void *cb_extra, int success, int num, struct tgl_user **UL) {
//  assert (TLSR == TLS);
//  struct lua_query_extra *cb = cb_extra;
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->func);
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  lua_pushnumber (luaState, success);
//
//  if (success) {
//    lua_newtable (luaState);
//    int i;
//    for (i = 0; i < num; i++) {
//      lua_pushnumber (luaState, i);
//      push_peer (UL[i]->id, (void *)UL[i]);
//      lua_settable (luaState, -3);
//    }
//  } else {
//    lua_pushboolean (luaState, 0);
//  }
//
//  assert (lua_gettop (luaState) == 4);
//
//  int r = lua_pcall (luaState, 3, 0, 0);
//
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->func);
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//
//  free (cb);
//}
//
//void lua_dialog_list_cb (struct tgl_state *TLSR, void *cb_extra, int success, int num, tgl_peer_id_t peers[], int msgs[], int unread[]) {
//  assert (TLSR == TLS);
//  struct lua_query_extra *cb = cb_extra;
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->func);
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  lua_pushnumber (luaState, success);
//  if (success) {
//    lua_newtable (luaState);
//    int i;
//    for (i = 0; i < num; i++) {
//      lua_pushnumber (luaState, i);
//
//      lua_newtable (luaState);
//
//      lua_pushstring (luaState, "peer");
//      push_peer (peers[i], tgl_peer_get (TLS, peers[i]));
//      lua_settable (luaState, -3);
//
//      struct tgl_message *M = tgl_message_get (TLS, msgs[i]);
//      if (M && (M->flags & FLAG_CREATED)) {
//        lua_pushstring (luaState, "message");
//        push_message (M);
//        lua_settable (luaState, -3);
//      }
//
//      lua_pushstring (luaState, "unread");
//      lua_pushnumber (luaState, unread[i]);
//      lua_settable (luaState, -3);
//
//      lua_settable (luaState, -3);
//    }
//  } else {
//    lua_pushboolean (luaState, 0);
//  }
//  assert (lua_gettop (luaState) == 4);
//
//
//  int r = lua_pcall (luaState, 3, 0, 0);
//
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->func);
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//
//  free (cb);
//}
//
//void lua_msg_cb (struct tgl_state *TLSR, void *cb_extra, int success, struct tgl_message *M) {
//  assert (TLSR == TLS);
//  struct lua_query_extra *cb = cb_extra;
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->func);
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  lua_pushnumber (luaState, success);
//
//  if (success) {
//    push_message (M);
//  } else {
//    lua_pushboolean (luaState, 0);
//  }
//
//  assert (lua_gettop (luaState) == 4);
//
//  int r = lua_pcall (luaState, 3, 0, 0);
//
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->func);
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//
//  free (cb);
//}
//
//void lua_msg_list_cb (struct tgl_state *TLSR, void *cb_extra, int success, int num, struct tgl_message *M[]) {
//  assert (TLSR == TLS);
//  struct lua_query_extra *cb = cb_extra;
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->func);
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  lua_pushnumber (luaState, success);
//
//  if (success) {
//    lua_newtable (luaState);
//    int i;
//    for (i = 0; i < num; i++) {
//      lua_pushnumber (luaState, i);
//      push_message (M[i]);
//      lua_settable (luaState, -3);
//    }
//  } else {
//    lua_pushboolean (luaState, 0);
//  }
//
//  assert (lua_gettop (luaState) == 4);
//
//  int r = lua_pcall (luaState, 3, 0, 0);
//
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->func);
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//
//  free (cb);
//}
//
//void lua_file_cb (struct tgl_state *TLSR, void *cb_extra, int success, char *file_name) {
//  assert (TLSR == TLS);
//  struct lua_query_extra *cb = cb_extra;
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->func);
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  lua_pushnumber (luaState, success);
//
//  if (success) {
//    lua_pushstring (luaState, file_name);
//  } else {
//    lua_pushboolean (luaState, 0);
//  }
//
//  assert (lua_gettop (luaState) == 4);
//
//  int r = lua_pcall (luaState, 3, 0, 0);
//
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->func);
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//
//  free (cb);
//}
//
//void lua_chat_cb (struct tgl_state *TLSR, void *cb_extra, int success, struct tgl_chat *C) {
//  assert (TLSR == TLS);
//  struct lua_query_extra *cb = cb_extra;
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->func);
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  lua_pushnumber (luaState, success);
//
//  if (success) {
//    push_peer (C->id, (void *)C);
//  } else {
//    lua_pushboolean (luaState, 0);
//  }
//
//  assert (lua_gettop (luaState) == 4);
//
//  int r = lua_pcall (luaState, 3, 0, 0);
//
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->func);
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//
//  free (cb);
//}
//
//void lua_secret_chat_cb (struct tgl_state *TLSR, void *cb_extra, int success, struct tgl_secret_chat *C) {
//  assert (TLSR == TLS);
//  struct lua_query_extra *cb = cb_extra;
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->func);
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  lua_pushnumber (luaState, success);
//
//  if (success) {
//    push_peer (C->id, (void *)C);
//  } else {
//    lua_pushboolean (luaState, 0);
//  }
//
//  assert (lua_gettop (luaState) == 4);
//
//  int r = lua_pcall (luaState, 3, 0, 0);
//
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->func);
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//
//  free (cb);
//}
//
//void lua_user_cb (struct tgl_state *TLSR, void *cb_extra, int success, struct tgl_user *C) {
//  assert (TLSR == TLS);
//  struct lua_query_extra *cb = cb_extra;
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->func);
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  lua_pushnumber (luaState, success);
//
//  if (success) {
//    push_peer (C->id, (void *)C);
//  } else {
//    lua_pushboolean (luaState, 0);
//  }
//
//  assert (lua_gettop (luaState) == 4);
//
//  int r = lua_pcall (luaState, 3, 0, 0);
//
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->func);
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//
//  free (cb);
//}
//
//void lua_str_cb (struct tgl_state *TLSR, void *cb_extra, int success, char *data) {
//  assert (TLSR == TLS);
//  struct lua_query_extra *cb = cb_extra;
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->func);
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  lua_pushnumber (luaState, success);
//
//  if (success) {
//    lua_pushstring (luaState, data);
//  } else {
//    lua_pushboolean (luaState, 0);
//  }
//
//  assert (lua_gettop (luaState) == 4);
//
//  int r = lua_pcall (luaState, 3, 0, 0);
//
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->func);
//  luaL_unref (luaState, LUA_REGISTRYINDEX, cb->param);
//
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//
//  free (cb);
//}
//
//void lua_do_all (void) {
//  int p = 0;
//  while (p < pos) {
//    int l = (long)lua_ptr[p ++];
//    assert (p + l + 1 <= pos);
//    enum lua_query_type f = (long)lua_ptr[p ++];
//    struct tgl_message *M;
//    char *s, *s1, *s2, *s3;
//    switch (f) {
//    case lq_contact_list:
//      tgl_do_update_contact_list (TLS, lua_contact_list_cb, lua_ptr[p ++]);
//      break;
//    case lq_dialog_list:
//      tgl_do_get_dialog_list (TLS, lua_dialog_list_cb, lua_ptr[p ++]);
//      break;
//    case lq_msg:
//      tgl_do_send_message (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, lua_ptr[p + 2], strlen (lua_ptr[p + 2]), lua_msg_cb, lua_ptr[p]);
//      free (lua_ptr[p + 2]);
//      p += 3;
//      break;
//    case lq_send_typing:
//      tgl_do_send_typing (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, tgl_typing_typing, lua_empty_cb, lua_ptr[p]);
//      p += 2;
//      break;
//    case lq_send_typing_abort:
//      tgl_do_send_typing (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, tgl_typing_cancel, lua_empty_cb, lua_ptr[p]);
//      p += 2;
//      break;
//    case lq_rename_chat:
//      tgl_do_rename_chat (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, lua_ptr[p + 2], lua_msg_cb, lua_ptr[p]);
//      free (lua_ptr[p + 2]);
//      p += 3;
//      break;
//    case lq_send_photo:
//      tgl_do_send_document (TLS, -1, ((tgl_peer_t *)lua_ptr[p + 1])->id, lua_ptr[p + 2], lua_msg_cb, lua_ptr[p]);
//      free (lua_ptr[p + 2]);
//      p += 3;
//      break;
//    case lq_send_video:
//      tgl_do_send_document (TLS, FLAG_DOCUMENT_VIDEO, ((tgl_peer_t *)lua_ptr[p + 1])->id, lua_ptr[p + 2], lua_msg_cb, lua_ptr[p]);
//      free (lua_ptr[p + 2]);
//      p += 3;
//      break;
//    case lq_send_audio:
//      tgl_do_send_document (TLS, FLAG_DOCUMENT_AUDIO, ((tgl_peer_t *)lua_ptr[p + 1])->id, lua_ptr[p + 2], lua_msg_cb, lua_ptr[p]);
//      free (lua_ptr[p + 2]);
//      p += 3;
//      break;
//    case lq_send_document:
//      tgl_do_send_document (TLS, 0, ((tgl_peer_t *)lua_ptr[p + 1])->id, lua_ptr[p + 2], lua_msg_cb, lua_ptr[p]);
//      free (lua_ptr[p + 2]);
//      p += 3;
//      break;
//    case lq_send_file:
//      tgl_do_send_document (TLS, -2, ((tgl_peer_t *)lua_ptr[p + 1])->id, lua_ptr[p + 2], lua_msg_cb, lua_ptr[p]);
//      free (lua_ptr[p + 2]);
//      p += 3;
//      break;
//    case lq_send_text:
//      tgl_do_send_text (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, lua_ptr[p + 2], lua_msg_cb, lua_ptr[p]);
//      free (lua_ptr[p + 2]);
//      p += 3;
//      break;
//    case lq_chat_set_photo:
//      tgl_do_set_chat_photo (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, lua_ptr[p + 2], lua_msg_cb, lua_ptr[p]);
//      free (lua_ptr[p + 2]);
//      p += 3;
//      break;
//    case lq_load_photo:
//    case lq_load_video:
//    case lq_load_audio:
//    case lq_load_document:
//      M = lua_ptr[p + 1];
//      if (!M || (M->media.type != tgl_message_media_photo && M->media.type != tgl_message_media_photo_encr && M->media.type != tgl_message_media_document && M->media.type != tgl_message_media_document_encr)) {
//        lua_file_cb (TLS, lua_ptr[p], 0, 0);
//      } else {
//        if (M->media.type == tgl_message_media_photo) {
//          tgl_do_load_photo (TLS, &M->media.photo, lua_file_cb, lua_ptr[p]);
//        } else if (M->media.type == tgl_message_media_document) {
//          tgl_do_load_document (TLS, &M->media.document, lua_file_cb, lua_ptr[p]);
//        } else {
//          tgl_do_load_encr_document (TLS, &M->media.encr_document, lua_file_cb, lua_ptr[p]);
//        }
//      }
//      p += 2;
//      break;
//    case lq_load_video_thumb:
//    case lq_load_document_thumb:
//      M = lua_ptr[p + 1];
//      if (!M || (M->media.type != tgl_message_media_document)) {
//        lua_file_cb (TLS, lua_ptr[p], 0, 0);
//      } else {
//        tgl_do_load_document_thumb (TLS, &M->media.document, lua_file_cb, lua_ptr[p]);
//      }
//      p += 2;
//      break;
//    case lq_fwd:
//      tgl_do_forward_message (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, ((struct tgl_message *)lua_ptr[p + 2])->id, lua_msg_cb, lua_ptr[p]);
//      p += 3;
//      break;
//    case lq_fwd_media:
//      tgl_do_forward_media (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, ((struct tgl_message *)lua_ptr[p + 2])->id, lua_msg_cb, lua_ptr[p]);
//      p += 3;
//      break;
//    case lq_chat_info:
//      tgl_do_get_chat_info (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, 0, lua_chat_cb, lua_ptr[p]);
//      p += 2;
//      break;
//    case lq_user_info:
//      tgl_do_get_user_info (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, 0, lua_user_cb, lua_ptr[p]);
//      p += 2;
//      break;
//    case lq_history:
//      tgl_do_get_history (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, (long)lua_ptr[p + 2], 0, lua_msg_list_cb, lua_ptr[p]);
//      p += 3;
//      break;
//    case lq_chat_add_user:
//      tgl_do_add_user_to_chat (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, ((tgl_peer_t *)lua_ptr[p + 2])->id, 10, lua_msg_cb, lua_ptr[p]);
//      p += 3;
//      break;
//    case lq_chat_del_user:
//      tgl_do_del_user_from_chat (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, ((tgl_peer_t *)lua_ptr[p + 2])->id, lua_msg_cb, lua_ptr[p]);
//      p += 3;
//      break;
//    case lq_add_contact:
//      s1 = lua_ptr[p + 1];
//      s2 = lua_ptr[p + 2];
//      s3 = lua_ptr[p + 3];
//      tgl_do_add_contact (TLS, s1, strlen (s1), s2, strlen (s2), s3, strlen (s3), 0, lua_contact_list_cb, lua_ptr[p]);
//      free (s1);
//      free (s2);
//      free (s3);
//      p += 4;
//      break;
//    case lq_del_contact:
//      tgl_do_del_contact (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, lua_empty_cb, lua_ptr[p]);
//      p += 2;
//      break;
//    case lq_rename_contact:
//      s1 = lua_ptr[p + 1];
//      s2 = lua_ptr[p + 2];
//      s3 = lua_ptr[p + 3];
//      tgl_do_add_contact (TLS, s1, strlen (s1), s2, strlen (s2), s3, strlen (s3), 1, lua_contact_list_cb, lua_ptr[p]);
//      free (s1);
//      free (s2);
//      free (s3);
//      p += 4;
//      break;
//    case lq_search:
//      s = lua_ptr[p + 2];
//      tgl_do_msg_search (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, 0, 0, 40, 0, s, lua_msg_list_cb, lua_ptr[p]);
//      free (s);
//      p += 3;
//      break;
//    case lq_global_search:
//      s = lua_ptr[p + 1];
//      tgl_do_msg_search (TLS, tgl_set_peer_id (TGL_PEER_UNKNOWN, 0), 0, 0, 40, 0, s, lua_msg_list_cb, lua_ptr[p]);
//      free (s);
//      p += 2;
//      break;
//    case lq_mark_read:
//      tgl_do_mark_read (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, lua_empty_cb, lua_ptr[p]);
//      p += 2;
//      break;
//    case lq_set_profile_photo:
//      s = lua_ptr[p + 1];
//      tgl_do_set_profile_photo (TLS, s, lua_empty_cb, lua_ptr[p]);
//      free (s);
//      p += 2;
//      break;
//    case lq_set_profile_name:
//      s1 = lua_ptr[p + 1];
//      s2 = lua_ptr[p + 1];
//      tgl_do_set_profile_name (TLS, s1, s2, lua_user_cb, lua_ptr[p]);
//      free (s1);
//      free (s2);
//      p += 3;
//      break;
//    case lq_create_secret_chat:
//      tgl_do_create_secret_chat (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, lua_secret_chat_cb, lua_ptr[p]);
//      p += 2;
//      break;
//    case lq_create_group_chat:
//      s = lua_ptr[p + 2];
//      tgl_do_create_group_chat (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, s, lua_msg_cb, lua_ptr[p]);
//      free (s);
//      p += 3;
//      break;
//    case lq_delete_msg:
//      tgl_do_delete_msg (TLS, ((struct tgl_message *)lua_ptr[p + 1])->id, lua_empty_cb, lua_ptr[p]);
//      p += 2;
//      break;
//    case lq_restore_msg:
//      tgl_do_delete_msg (TLS, (long)lua_ptr[p + 1], lua_empty_cb, lua_ptr[p]);
//      p += 2;
//      break;
//    case lq_accept_secret_chat:
//      tgl_do_accept_encr_chat_request (TLS, lua_ptr[p + 1], lua_secret_chat_cb, lua_ptr[p]);
//      p += 2;
//      break;
//    case lq_send_contact:
//      s1 = lua_ptr[p + 2];
//      s2 = lua_ptr[p + 3];
//      s3 = lua_ptr[p + 4];
//      tgl_do_send_contact (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id, s1, strlen (s1), s2, strlen (s2), s3, strlen (s3), lua_msg_cb, lua_ptr[p]);
//      free (s1);
//      free (s2);
//      free (s3);
//      p += 5;
//      break;
//    case lq_status_online:
//      tgl_do_update_status (TLS, 1, lua_empty_cb, lua_ptr[p]);
//      p ++;
//      break;
//    case lq_status_offline:
//      tgl_do_update_status (TLS, 0, lua_empty_cb, lua_ptr[p]);
//      p ++;
//      break;
//    case lq_extf:
//      s = lua_ptr[p + 1];
//      tgl_do_send_extf (TLS, s, strlen (s), lua_str_cb, lua_ptr[p]);
//      free (s);
//      p += 2;
//      break;
//    case lq_send_location:
//      if (sizeof (void *) == 4) {
//        tgl_do_send_location (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id , *(float *)(lua_ptr + p + 2), *(float *)(lua_ptr + p + 3), lua_msg_cb, lua_ptr[p]);
//      } else {
//        tgl_do_send_location (TLS, ((tgl_peer_t *)lua_ptr[p + 1])->id , *(double *)(lua_ptr + p + 2), *(double *)(lua_ptr + p + 3), lua_msg_cb, lua_ptr[p]);
//      }
//      p += 4;
//      break;
//  /*
//  lq_delete_msg,
//  lq_restore_msg,
//    case 0:
//      tgl_do_send_message (((tgl_peer_t *)lua_ptr[p])->id, lua_ptr[p + 1], strlen (lua_ptr[p + 1]), 0, 0);
//      free (lua_ptr[p + 1]);
//      p += 2;
//      break;
//    case 1:
//      tgl_do_forward_message (((tgl_peer_t *)lua_ptr[p])->id, (long)lua_ptr[p + 1], 0, 0);
//      p += 2;
//      break;
//    case 2:
//      tgl_do_mark_read (((tgl_peer_t *)lua_ptr[p])->id, 0, 0);
//      p += 1;
//      break;*/
//    default:
//      assert (0);
//    }
//  }
//  pos = 0;
//}
//
//
//enum lua_function_param {
//  lfp_none,
//  lfp_peer,
//  lfp_chat,
//  lfp_user,
//  lfp_secret_chat,
//  lfp_string,
//  lfp_number,
//  lfp_positive_number,
//  lfp_nonnegative_number,
//  lfp_msg,
//  lfp_double
//};
//
//struct lua_function {
//  char *name;
//  enum lua_query_type type;
//  enum lua_function_param params[10];
//};
//
//struct lua_function functions[] = {
//  {"get_contact_list", lq_contact_list, { lfp_none }},
//  {"get_dialog_list", lq_dialog_list, { lfp_none }},
//  {"rename_chat", lq_rename_chat, { lfp_chat, lfp_string, lfp_none }},
//  {"send_msg", lq_msg, { lfp_peer, lfp_string, lfp_none }},
//  {"send_typing", lq_send_typing, { lfp_peer, lfp_none }},
//  {"send_typing_abort", lq_send_typing_abort, { lfp_peer, lfp_none }},
//  {"send_photo", lq_send_photo, { lfp_peer, lfp_string, lfp_none }},
//  {"send_video", lq_send_video, { lfp_peer, lfp_string, lfp_none }},
//  {"send_audio", lq_send_audio, { lfp_peer, lfp_string, lfp_none }},
//  {"send_document", lq_send_document, { lfp_peer, lfp_string, lfp_none }},
//  {"send_file", lq_send_file, { lfp_peer, lfp_string, lfp_none }},
//  {"send_text", lq_send_text, { lfp_peer, lfp_string, lfp_none }},
//  {"chat_set_photo", lq_chat_set_photo, { lfp_chat, lfp_string, lfp_none }},
//  {"load_photo", lq_load_photo, { lfp_msg, lfp_none }},
//  {"load_video", lq_load_video, { lfp_msg, lfp_none }},
//  {"load_video_thumb", lq_load_video_thumb, { lfp_msg, lfp_none }},
//  {"load_audio", lq_load_audio, { lfp_msg, lfp_none }},
//  {"load_document", lq_load_document, { lfp_msg, lfp_none }},
//  {"load_document_thumb", lq_load_document_thumb, { lfp_msg, lfp_none }},
//  {"fwd_msg", lq_fwd, { lfp_peer, lfp_msg, lfp_none }},
//  {"fwd_media", lq_fwd_media, { lfp_peer, lfp_msg, lfp_none }},
//  {"chat_info", lq_chat_info, { lfp_chat, lfp_none }},
//  {"user_info", lq_user_info, { lfp_user, lfp_none }},
//  {"get_history", lq_history, { lfp_peer, lfp_nonnegative_number, lfp_none }},
//  {"chat_add_user", lq_chat_add_user, { lfp_chat, lfp_user, lfp_none }},
//  {"chat_del_user", lq_chat_del_user, { lfp_chat, lfp_user, lfp_none }},
//  {"add_contact", lq_add_contact, { lfp_string, lfp_string, lfp_string, lfp_none }},
//  {"del_contact", lq_del_contact, { lfp_user, lfp_none }},
//  {"rename_contact", lq_rename_contact, { lfp_string, lfp_string, lfp_string, lfp_none }},
//  {"msg_search", lq_search, { lfp_peer, lfp_string, lfp_none }},
//  {"msg_global_search", lq_global_search, { lfp_string, lfp_none }},
//  {"mark_read", lq_mark_read, { lfp_peer, lfp_none }},
//  {"set_profile_photo", lq_set_profile_photo, { lfp_string, lfp_none }},
//  {"set_profile_name", lq_set_profile_name, { lfp_string, lfp_none }},
//  {"create_secret_chat", lq_create_secret_chat, { lfp_user, lfp_none }},
//  {"create_group_chat", lq_create_group_chat, { lfp_user, lfp_string, lfp_none }},
//  {"delete_msg", lq_delete_msg, { lfp_msg, lfp_none }},
//  {"restore_msg", lq_restore_msg, { lfp_positive_number, lfp_none }},
//  {"accept_secret_chat", lq_accept_secret_chat, { lfp_secret_chat, lfp_none }},
//  {"send_contact", lq_send_contact, { lfp_peer, lfp_string, lfp_string, lfp_string, lfp_none }},
//  {"status_online", lq_status_online, { lfp_none }},
//  {"status_offline", lq_status_offline, { lfp_none }},
//  {"send_location", lq_send_location, { lfp_peer, lfp_double, lfp_double, lfp_none }},  
//  {"ext_function", lq_extf, { lfp_string, lfp_none }},
//  { 0, 0, { lfp_none}}
//};
//
//static int parse_lua_function (lua_State *L, struct lua_function *F) {
//  int p = 0;
//  while (F->params[p] != lfp_none) { p ++; }
//  if (lua_gettop (L) != p + 2) {
//    lua_pushboolean (L, 0);
//    return 1;
//  }
//  
//  int a1 = luaL_ref (L, LUA_REGISTRYINDEX);
//  int a2 = luaL_ref (L, LUA_REGISTRYINDEX);
//  
//  struct lua_query_extra *e = malloc (sizeof (*e));
//  assert (e);
//  e->func = a2;
//  e->param = a1;
//
//  assert (pos + 3 + p < MAX_LUA_COMMANDS);
//
//  lua_ptr[pos ++] = (void *)(long)(p + 1);
//  lua_ptr[pos ++] = (void *)(long)F->type;
//  lua_ptr[pos ++] = e;
//
//  int sp = p;
//  int ok = 1;
//  int cc = 0;
//  while (p > 0) {
//    p --;
//    cc ++;
//    const char *s;
//    tgl_peer_t *P;
//    long long num;
//    double dval;
//    struct tgl_message *M;
//    switch (F->params[p]) {
//    case lfp_none:
//      assert (0);
//      break;
//    case lfp_peer:
//    case lfp_user:
//    case lfp_chat:
//    case lfp_secret_chat:
//      s = lua_tostring (L, -cc);
//      if (!s) {
//        ok = 0;
//        break;
//      }
//      if (sscanf (s, "user#id%lld", &num) == 1 && num > 0) {
//        tgl_insert_empty_user (TLS, num);
//        P = tgl_peer_get (TLS, TGL_MK_USER (num));
//      } else if (sscanf (s, "chat#id%lld", &num) == 1 && num > 0) {
//        tgl_insert_empty_chat (TLS, num);
//        P = tgl_peer_get (TLS, TGL_MK_CHAT (num));
//      } else {
//        P = get_peer (s);
//      }
//      if (!P/* || !(P->flags & FLAG_CREATED)*/) {
//        ok = 0;
//        break;
//      }
//      if (F->params[p] != lfp_peer) {
//        if ((tgl_get_peer_type (P->id) == TGL_PEER_USER && F->params[p] != lfp_user) || 
//            (tgl_get_peer_type (P->id) == TGL_PEER_CHAT && F->params[p] != lfp_chat) || 
//            (tgl_get_peer_type (P->id) == TGL_PEER_ENCR_CHAT && F->params[p] != lfp_secret_chat)) {
//          ok = 0;
//          break;
//        }
//      }
//      lua_ptr[pos + p] = P;
//      break;
//
//    case lfp_string:
//      s = lua_tostring (L, -cc);
//      if (!s) {
//        ok = 0;
//        break;
//      }
//      lua_ptr[pos + p] = (void *)s;
//      break;
//
//    case lfp_number:
//      num = lua_tonumber (L, -cc);
//      
//      lua_ptr[pos + p] = (void *)(long)num;
//      break;
//    
//    case lfp_double:
//      dval  = lua_tonumber (L, -cc);
//    
//      if (sizeof (void *) == 4) {
//        *(float *)(lua_ptr + pos + p) = dval;
//      } else {
//        assert (sizeof (void *) >= 8);
//        *(double *)(lua_ptr + pos + p) = dval;
//      }
//      break;
//    
//    case lfp_positive_number:
//      num = lua_tonumber (L, -cc);
//      if (num <= 0) {
//        ok = 0;
//        break;
//      }
//      
//      lua_ptr[pos + p] = (void *)(long)num;
//      break;
//    
//    case lfp_nonnegative_number:
//      num = lua_tonumber (L, -cc);
//      if (num < 0) {
//        ok = 0;
//        break;
//      }
//      
//      lua_ptr[pos + p] = (void *)(long)num;
//      break;
//
//    case lfp_msg:
//      s = lua_tostring (L, -cc);
//      if (!s || !strlen (s)) {
//        ok = 0;
//        break;
//      }
//
//      num = atoll (s);
//
//      M = tgl_message_get (TLS, num);
//
//      if (!M || !(M->flags & FLAG_CREATED)) {
//        ok = 0;
//        break;
//      }
//      
//      lua_ptr[pos + p] = M;
//      break;
//    
//    default:
//      assert (0);
//    }
//  }
//  if (!ok) {
//    luaL_unref (luaState, LUA_REGISTRYINDEX, a1);
//    luaL_unref (luaState, LUA_REGISTRYINDEX, a2);
//    free (e);
//    pos -= 3;
//    lua_pushboolean (L, 0);
//    return 1;
//  }
//  
//  for (p = 0; p < sp; p++) {
//    if (F->params[p] == lfp_string) {
//      lua_ptr[pos + p] = strdup (lua_ptr[pos + p]);
//    }
//  }
//  pos += p;
//
//  lua_pushboolean (L, 1);
//  return 1;
//}
//
//
//static void lua_postpone_alarm (evutil_socket_t fd, short what, void *arg) {
//  int *t = arg;
//  
//  lua_settop (luaState, 0);
//  //lua_checkstack (luaState, 20);
//  my_lua_checkstack (luaState, 20);
//
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, t[1]);
//  lua_rawgeti (luaState, LUA_REGISTRYINDEX, t[0]);
//  assert (lua_gettop (luaState) == 2);
//  
//  int r = lua_pcall (luaState, 1, 0, 0);
//
//  luaL_unref (luaState, LUA_REGISTRYINDEX, t[0]);
//  luaL_unref (luaState, LUA_REGISTRYINDEX, t[1]);
//
//  if (r) {
//    logprintf ("lua: %s\n",  lua_tostring (luaState, -1));
//  }
//
//}
//
//static int postpone_from_lua (lua_State *L) {
//  int n = lua_gettop (L);
//  if (n != 3) {
//    lua_pushboolean (L, 0);
//    return 1;
//  }
//
//  double timeout = lua_tonumber (L, -1);
//  if (timeout < 0) {
//    lua_pushboolean (L, 0);
//    return 1;
//  }
//
//  lua_pop (L, 1);
//  int a1 = luaL_ref (L, LUA_REGISTRYINDEX);
//  int a2 = luaL_ref (L, LUA_REGISTRYINDEX);
//
//
//  int *t = malloc (16);
//  assert (t);
//  struct event *ev = evtimer_new (TLS->ev_base, lua_postpone_alarm, t);
//  t[0] = a1;
//  t[1] = a2;
//  *(void **)(t + 2) = ev;
//  
//  struct timeval ts= {
//    .tv_sec = (long)timeout,
//    .tv_usec = (timeout - ((long)timeout)) * 1000000
//  };
//  event_add (ev, &ts);
//  
//  lua_pushboolean (L, 1);
//  return 1;
//}
//
//extern int safe_quit;
//static int safe_quit_from_lua (lua_State *L) {
//  int n = lua_gettop (L);
//  if (n != 0) {
//    lua_pushboolean (L, 0);
//    return 1;
//  }
//  safe_quit = 1;
//  
//  lua_pushboolean (L, 1);
//  return 1;
//}
//
//static int universal_from_lua (lua_State *L) {
//  const char *s = lua_tostring(L, lua_upvalueindex(1));
//  if (!s) {
//    lua_pushboolean (L, 0);
//    return 1;
//  }
//  int i = 0;
//  while (functions[i].name) {
//    if (!strcmp (functions[i].name, s)) {
//      return parse_lua_function (L, &functions[i]);
//    }
//    i ++;
//  }
//  lua_pushboolean (L, 0);
//  return 1;
//}
//
//
static void my_python_register (PyObject *dict, const char *name, PyObject *f) {
  // Store callables for python functions 
  f = PyDict_GetItemString(dict, name);
  assert(PyCallable_Check(f)); // TODO handle this
}




void py_init (const char *file) {
  if (!file) { return; }
  have_file = 1;

  PyObject *pName, *pModule, *pDict;
  
  Py_Initialize();

  pName = PyString_FromString(file);
  pModule = PyImport_Import(pName);
  pDict = PyModule_GetDict(pModule);

  // Store callables for python functions
  my_python_register(pDict, "on_binlog_replay_end", _py_binlog_end);
  my_python_register(pDict, "on_get_difference_end", _py_diff_end);
  my_python_register(pDict, "on_our_id", _py_our_id);
  my_python_register(pDict, "on_msg_receive", _py_new_msg);
  my_python_register(pDict, "on_secret_chat_update", _py_secret_chat_update);
  my_python_register(pDict, "on_user_update", _py_user_update);
  my_python_register(pDict, "on_chat_update", _py_chat_update);


//  PyObject* err = PyErr_Occurred();
//  if (err != NULL) {
//    logprintf("python error occurred"); // TODO: implement the backtrace
//    exit(1);
//  }

//  int i = 0;
//  while (functions[i].name) {
//    my_lua_register (luaState, functions[i].name, universal_from_lua);
//    i ++;
//  }
  //lua_register (luaState, "fwd_msg", fwd_msg_from_lua);
  //lua_register (luaState, "mark_read", mark_read_from_lua);
//  lua_register (luaState, "postpone", postpone_from_lua);
//  lua_register (luaState, "safe_quit", safe_quit_from_lua);
  //lua_register (luaState, "get_contact_list", get_contacts_from_lua);
  /*lua_register (luaState, "get_dialog_list", get_dialog_list_from_lua);
  lua_register (luaState, "send_msg", send_msg_from_lua);
  lua_register (luaState, "rename_chat", rename_chat_from_lua);
  lua_register (luaState, "send_photo", send_photo_from_lua);
  lua_register (luaState, "send_video", send_video_from_lua);
  lua_register (luaState, "send_audio", send_audio_from_lua);
  lua_register (luaState, "send_document", send_document_from_lua);
  lua_register (luaState, "send_text", send_text_from_lua);
  lua_register (luaState, "chat_set_photo", chat_set_photo_from_lua);
  lua_register (luaState, "load_photo", load_photo_from_lua);
  lua_register (luaState, "load_video", load_video_from_lua);
  lua_register (luaState, "load_video_thumb", load_video_thumb_from_lua);
  lua_register (luaState, "load_audio", load_audio_from_lua);
  lua_register (luaState, "load_document", load_document_from_lua);
  lua_register (luaState, "load_document_thumb", load_document_thumb_from_lua);
  lua_register (luaState, "fwd_msg", message_forward_from_lua);
  lua_register (luaState, "chat_info", chat_info_from_lua);
  lua_register (luaState, "user_info", user_info_from_lua);
  lua_register (luaState, "get_history", get_history_from_lua);
  lua_register (luaState, "chat_add_user", chat_add_user_from_lua);
  lua_register (luaState, "chat_del_user", chat_del_user_from_lua);
  lua_register (luaState, "add_contact", add_contact_from_lua);
  lua_register (luaState, "rename_contact", rename_contact_from_lua);*/

}

#endif