/*  conf.c
 *  Copyright (C) 2002-2005  PCSX2 Team
 *
 *  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 *
 *  PCSX2 members can be contacted through their website at www.pcsx2.net.
 */

#include <errno.h> // errno
#include <stddef.h> // NULL
#include <stdio.h> // sprintf()
#include <stdlib.h> // getenv()
#include <string.h> // strerror()
#include <sys/stat.h> // mkdir(), stat()
#include <sys/types.h> // mkdir(), stat()
#include <unistd.h> // stat()

// #define CDVDdefs
// #include "../PS2Edefs.h"
#include "logfile.h"
#include "../ini.h"
#include "conf.h"


const char *cfgname[] = { \
  "./cfg/cfgCDVDlinuz", \
  "../cfg/cfgCDVDlinuz", \
  "./plugins/cfgCDVDlinuz", \
  "../plugins/cfgCDVDlinuz", \
  "./cfgCDVDlinuz", \
  "../cfgCDVDlinuz", \
  NULL };

const char *confnames[] = { "Device", NULL };
const u8 defaultdevice[] = DEFAULT_DEVICE;
const char defaulthome[] = "../inis";
const char defaultdirectory[] = ".PS2E";
const char defaultfile[] = "CDVDlinuz.ini";

char confdirname[256];
char conffilename[256];

CDVDconf conf;


void ExecCfg(char *arg) {
  int nameptr;
  struct stat filestat;
  char templine[256];

#ifdef VERBOSE_FUNCTION_CONF
  PrintLog("CDVDiso interface: ExecCfg(%s)", arg);
#endif /* VERBOSE FUNCTION_CONF */
  errno = 0;
  nameptr = 0;
  while((cfgname[nameptr] != NULL) &&
        (stat(cfgname[nameptr], &filestat) == -1))  nameptr++;
  errno = 0;

  if(cfgname[nameptr] == NULL) {
#ifdef VERBOSE_FUNCTION_CONF
      PrintLog("CDVDiso interface:   Couldn't find configuration program!");
#endif /* VERBOSE_FUNCTION_CONF */
    return;
  } // ENDIF- Did not find the executable?

  sprintf(templine, "%s %s", cfgname[nameptr], arg);
  system(templine);
} // END ExecCfg()


void InitConf() {
  int i;
  int pos;
  char *envptr;

#ifdef VERBOSE_FUNCTION_CONF
  PrintLog("CDVD config: InitConf()");
#endif /* VERBOSE_FUNCTION_CONF */

  i = 0;
  while((i < 255) && defaultdevice[i] != 0) {
    conf.devicename[i] = defaultdevice[i];
    i++;
  } // ENDWHILE- copying the default CD/DVD name in
  conf.devicename[i] = 0; // 0-terminate the device name

  // Locating directory and file positions
  pos = 0;
  envptr = getenv("HOME");
  if(envptr == NULL) {
    // = <Default Home>
    i = 0;
    while((pos < 253) && (defaulthome[i] != 0)) {
      confdirname[pos] = defaulthome[i];
      conffilename[pos] = defaulthome[i];
      pos++;
      i++;
    } // NEXT- putting a default place to store configuration data

  } else {
    // = <Env Home>/<Default Directory>
    i = 0;
    while((pos < 253) && (*(envptr + i) != 0)) {
      confdirname[pos] = *(envptr + i);
      conffilename[pos] = *(envptr + i);
      pos++;
      i++;
    } // ENDWHILE- copying home directory info in

    if(confdirname[pos-1] != '/') {
      confdirname[pos] = '/';
      conffilename[pos] = '/';
      pos++;
    } // ENDIF- No directory separator here? Add one.

    i = 0;
    while((pos < 253) && (defaultdirectory[i] != 0)) {
      confdirname[pos] = defaultdirectory[i];
      conffilename[pos] = defaultdirectory[i];
      pos++;
      i++;
    } // NEXT- putting a default place to store configuration data
  } // ENDIF- No Home directory?

  confdirname[pos] = 0; // Directory reference finished

  // += /<Config File Name>
  if(conffilename[pos-1] != '/') {
    conffilename[pos] = '/';
    pos++;
  } // ENDIF- No directory separator here? Add one.

  i = 0;
  while((pos < 253) && (defaultfile[i] != 0)) {
    conffilename[pos] = defaultfile[i];
    pos++;
    i++;
  } // NEXT- putting a default place to store configuration data

  conffilename[pos] = 0; // File reference finished

#ifdef VERBOSE_FUNCTION_CONF
  PrintLog("CDVD config:   Directory: %s\n", confdirname);
  PrintLog("CDVD config:   File: %s\n", conffilename);
#endif /* VERBOSE_FUNCTION_CONF */
} // END InitConf()


void LoadConf() {
  int retval;

#ifdef VERBOSE_FUNCTION_CONF
  PrintLog("CDVD config: LoadConf()\n");
#endif /* VERBOSE_FUNCTION_CONF */

  retval = INILoadString(conffilename, "Settings", "Device", conf.devicename);
  if(retval < 0) {
    sprintf(conf.devicename, "/dev/dvd");
  } // ENDIF- Couldn't find keyword? Fill in a default
} // END LoadConf()


void SaveConf() {
#ifdef VERBOSE_FUNCTION_CONF
  PrintLog("CDVD config: SaveConf()\n");
#endif /* VERBOSE_FUNCTION_CONF */

  mkdir(confdirname, 0755);

  INISaveString(conffilename, "Settings", "Device", conf.devicename);
} // END SaveConf()