/*
    CrossFire, A Multiplayer game for X-windows

    Copyright (C) 2002 Mark Wedel & Crossfire Development Team
    Copyright (C) 1992 Frank Tore Johansen

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

    The authors can be reached via e-mail at <crossfire@schmorp.de>
*/

#include <global.h>
#include <sproto.h>
#include <spells.h>
#include <loader.h>
#include <define.h>

extern void sub_weight (object *, signed long);
extern void add_weight (object *, signed long);
extern long pticks;

/* If flag is non zero, it means that we want to try and save everyone, but
 * keep the game running.  Thus, we don't want to free any information.
 */
void
emergency_save (int flag)
{
  trying_emergency_save = 1;

  LOG (llevError, "Emergency save:  ");
  for_all_players (pl)
    {
      if (!pl->ob)
        {
          LOG (llevError, "No name, ignoring this.\n");
          continue;
        }

      LOG (llevError, "%s ", &pl->ob->name);
      new_draw_info (NDI_UNIQUE, 0, pl->ob, "Emergency save...");

      /* If we are not exiting the game (ie, this is sort of a backup save), then
       * don't change the location back to the village.  Note that there are other
       * options to have backup saves be done at the starting village
       */
      if (!flag)
        {
          strcpy (pl->maplevel, first_map_path);

          pl->ob->map = 0;
          pl->ob->x = -1;
          pl->ob->y = -1;
        }

      pl->save (1);
    }

  LOG (llevError, "\n");
}

/* Delete character with name.  if new is set, also delete the new
 * style directory, otherwise, just delete the old style playfile
 * (needed for transition)
 */
void
delete_character (const char *name, int newchar)
{
  char buf[MAX_BUF];

  sprintf (buf, "%s/%s/%s.pl", settings.localdir, settings.playerdir, name);

  if (unlink (buf) == -1)
    LOG (llevDebug, "Cannot delete character file %s: %s\n", buf, strerror (errno));

  if (newchar)
    {
      sprintf (buf, "%s/%s/%s", settings.localdir, settings.playerdir, name);
      /* this effectively does an rm -rf on the directory */
      remove_directory (buf);
    }
}

int
create_savedir_if_needed (char *savedir)
{
  struct stat *buf;

  if ((buf = (struct stat *) malloc (sizeof (struct stat))) == NULL)
    {
      LOG (llevError, "Unable to save playerfile... out of memory.\n");
      return 0;
    }
  else
    {
      stat (savedir, buf);
      if (!S_ISDIR (buf->st_mode))
        if (mkdir (savedir, SAVE_DIR_MODE))
          {
            LOG (llevError, "Unable to create player savedir %s: %s\n", savedir, strerror (errno));
            return 0;
          }
      free (buf);
    }

  return 1;
}

/*
 * If final is set, it a clean/final save, not a backup, ie dont remove objects from inventory
 */
void
player::save (bool final)
{
  object *tmp, *container = 0;

  /* Sanity check - some stuff changes this when player is exiting */
  if (ob->type != PLAYER || !enable_save || !ns)
    return;

  INVOKE_PLAYER (SAVE, ob->contr);

  object_freezer freezer;

  int wiz = ob->flag [FLAG_WIZ];

  /* Eneq(@csd.uu.se): If we have an open container hide it. */
  container = ob->container;
  ob->container = 0;

  fprintf (freezer, "password %s\n", password);

  if (own_title[0] != '\0')
    fprintf (freezer, "title %s\n", own_title);

  fprintf (freezer, "explore %d\n", explore);
  fprintf (freezer, "gen_hp %d\n", gen_hp);
  fprintf (freezer, "gen_sp %d\n", gen_sp);
  fprintf (freezer, "gen_grace %d\n", gen_grace);
  fprintf (freezer, "listening %d\n", listening);
  fprintf (freezer, "shoottype %d\n", shoottype);
  fprintf (freezer, "bowtype %d\n", bowtype);
  fprintf (freezer, "petmode %d\n", petmode);
  fprintf (freezer, "peaceful %d\n", peaceful);
  fprintf (freezer, "digestion %d\n", digestion);
  fprintf (freezer, "pickup %d\n", mode);
  fprintf (freezer, "outputs_sync %d\n", outputs_sync);
  fprintf (freezer, "outputs_count %d\n", outputs_count);
  /* Match the enumerations but in string form */
  fprintf (freezer, "usekeys %s\n", usekeys == key_inventory ? "key_inventory" : (usekeys == keyrings ? "keyrings" : "containers"));
  /* Match the enumerations but in string form */
  fprintf (freezer, "unapply %s\n", unapply == unapply_nochoice ? "unapply_nochoice" :
           (unapply == unapply_never ? "unapply_never" : "unapply_always"));

  if (ob->map)
    fprintf (freezer, "map %s\n", ob->map->path);
  else
    fprintf (freezer, "map %s\n", settings.emergency_mapname);

  fprintf (freezer, "savebed_map %s\n", savebed_map);
  fprintf (freezer, "bed_x %d\nbed_y %d\n", bed_x, bed_y);
  fprintf (freezer, "weapon_sp %f\n", weapon_sp);
  fprintf (freezer, "Str %d\n", orig_stats.Str);
  fprintf (freezer, "Dex %d\n", orig_stats.Dex);
  fprintf (freezer, "Con %d\n", orig_stats.Con);
  fprintf (freezer, "Int %d\n", orig_stats.Int);
  fprintf (freezer, "Pow %d\n", orig_stats.Pow);
  fprintf (freezer, "Wis %d\n", orig_stats.Wis);
  fprintf (freezer, "Cha %d\n", orig_stats.Cha);

  fprintf (freezer, "lev_array %d\n", ob->level > 10 ? 10 : ob->level);

  for (int i = 1; i <= last_level && i <= 10; i++)
    {
      fprintf (freezer, "%d\n", levhp[i]);
      fprintf (freezer, "%d\n", levsp[i]);
      fprintf (freezer, "%d\n", levgrace[i]);
    }

  freezer.put (ob->contr);

  fprintf (freezer, "endplst\n");

  SET_FLAG (ob, FLAG_NO_FIX_PLAYER);
  CLEAR_FLAG (ob, FLAG_WIZ);
  save_object (freezer, ob, 1); /* don't check and don't remove */

  char filename[MAX_BUF];

  sprintf (filename, "%s/%s/%s/%s.pl", settings.localdir, settings.playerdir, &ob->name, &ob->name);
  make_path_to_file (filename);
  freezer.save (filename);

  CLEAR_FLAG (ob, FLAG_NO_FIX_PLAYER);

  /* Eneq(@csd.uu.se): Reveal the container if we have one. */
  ob->container = container;

  ob->flag [FLAG_WIZ] = wiz;

  enable_save = !final;
}

player *
player::load (const char *path)
{
  object_thawer thawer (path);

  /* If no file, must be a new player, so lets get confirmation of
   * the password.  Return control to the higher level dispatch,
   * since the rest of this just deals with loading of the file.
   */
  if (!thawer)
    return 0;

  player *pl = new player;

  char buf[MAX_BUF], bufall[MAX_BUF];

  pl->set_object (object::create ());
  pl->last_save_time = time (0);

  assign (pl->savebed_map, first_map_path);

  /* Loop through the file, loading the rest of the values */
  while (fgets (bufall, MAX_BUF, thawer))
    {
      int value;
      sscanf (bufall, "%s %d\n", buf, &value);

      if (!strcmp (buf, "endplst"))
        break;
      else if (!strcmp (buf, "oid"))
        thawer.get (pl, value);
      else if (!strcmp (buf, "password"))
        sscanf (bufall, "password %[^\n]", pl->password);
      else if (!strcmp (buf, "title"))
        sscanf (bufall, "title %[^\n]", pl->own_title);
      else if (!strcmp (buf, "explore"))
        pl->explore = value;
      else if (!strcmp (buf, "gen_hp"))
        pl->gen_hp = value;
      else if (!strcmp (buf, "shoottype"))
        pl->shoottype = (rangetype) value;
      else if (!strcmp (buf, "bowtype"))
        pl->bowtype = (bowtype_t) value;
      else if (!strcmp (buf, "petmode"))
        pl->petmode = (petmode_t) value;
      else if (!strcmp (buf, "gen_sp"))
        pl->gen_sp = value;
      else if (!strcmp (buf, "gen_grace"))
        pl->gen_grace = value;
      else if (!strcmp (buf, "listening"))
        pl->listening = value;
      else if (!strcmp (buf, "peaceful"))
        pl->peaceful = value;
      else if (!strcmp (buf, "digestion"))
        pl->digestion = value;
      else if (!strcmp (buf, "pickup"))
        pl->mode = value;
      else if (!strcmp (buf, "outputs_sync"))
        pl->outputs_sync = value;
      else if (!strcmp (buf, "outputs_count"))
        pl->outputs_count = value;
      else if (!strcmp (buf, "map"))
        sscanf (bufall, "map %s", pl->maplevel);
      else if (!strcmp (buf, "savebed_map"))
        sscanf (bufall, "savebed_map %s", pl->savebed_map);
      else if (!strcmp (buf, "bed_x"))
        pl->bed_x = value;
      else if (!strcmp (buf, "bed_y"))
        pl->bed_y = value;
      else if (!strcmp (buf, "weapon_sp"))
        sscanf (buf, "weapon_sp %f", &pl->weapon_sp);
      else if (!strcmp (buf, "Str"))
        pl->orig_stats.Str = value;
      else if (!strcmp (buf, "Dex"))
        pl->orig_stats.Dex = value;
      else if (!strcmp (buf, "Con"))
        pl->orig_stats.Con = value;
      else if (!strcmp (buf, "Int"))
        pl->orig_stats.Int = value;
      else if (!strcmp (buf, "Pow"))
        pl->orig_stats.Pow = value;
      else if (!strcmp (buf, "Wis"))
        pl->orig_stats.Wis = value;
      else if (!strcmp (buf, "Cha"))
        pl->orig_stats.Cha = value;
      else if (!strcmp (buf, "usekeys"))
        {
          if (!strcmp (bufall + 8, "key_inventory\n"))
            pl->usekeys = key_inventory;
          else if (!strcmp (bufall + 8, "keyrings\n"))
            pl->usekeys = keyrings;
          else if (!strcmp (bufall + 8, "containers\n"))
            pl->usekeys = containers;
          else
            LOG (llevDebug, "load_player: got unknown usekeys type: %s\n", bufall + 8);
        }
      else if (!strcmp (buf, "unapply"))
        {
          if (!strcmp (bufall + 8, "unapply_nochoice\n"))
            pl->unapply = unapply_nochoice;
          else if (!strcmp (bufall + 8, "unapply_never\n"))
            pl->unapply = unapply_never;
          else if (!strcmp (bufall + 8, "unapply_always\n"))
            pl->unapply = unapply_always;
          else
            LOG (llevDebug, "load_player: got unknown unapply type: %s\n", bufall + 8);
        }
      else if (!strcmp (buf, "lev_array"))
        {
          for (int i = 1; i <= value; i++)
            {
              char line[128];

              fgets (line, 128, thawer);
              pl->levhp[i] = atoi (line);
              fgets (line, 128, thawer);
              pl->levsp[i] = atoi (line);
              fgets (line, 128, thawer);
              pl->levgrace[i] = atoi (line);
            }
          /* spell_array code removed - don't know when that was last used.
           * Even the load code below will someday be replaced by spells being
           * objects.
           */
        }
      else
        LOG (llevDebug, "unparseable line in player file %s: %s\n", path, bufall);
    }

  /* this loads the standard objects values. */
  load_object (thawer, pl->ob, 0);

  /* If the map where the person was last saved does not exist,
   * restart them on their home-savebed. This is good for when
   * maps change between versions
   * First, we check for partial path, then check to see if the full
   * path (for unique player maps)
   */
  if (!has_been_loaded (pl->maplevel)
      && check_path (pl->maplevel, 1) == -1
      && check_path (pl->maplevel, 0) == -1)
    {
      strcpy (pl->maplevel, pl->savebed_map);
      pl->ob->x = pl->bed_x, pl->ob->y = pl->bed_y;
    }

  pl->last_save_tick = pticks;

  INVOKE_PLAYER (LOAD, pl, ARG_STRING (path));

  return pl;
}