/*  RetroArch - A frontend for libretro.
 *  Copyright (C) 2010-2014 - Hans-Kristian Arntzen
 *  Copyright (C) 2011-2015 - Daniel De Matteis
 * 
 *  RetroArch 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 Found-
 *  ation, either version 3 of the License, or (at your option) any later version.
 *
 *  RetroArch 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 RetroArch.
 *  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __RARCH_SETTINGS_H__
#define __RARCH_SETTINGS_H__

#include <stdint.h>
#include <retro_miscellaneous.h>
#include "driver.h"

#ifndef MAX_USERS
#define MAX_USERS 16
#endif

#ifdef __cplusplus
extern "C" {
#endif

/* All config related settings go here. */

typedef struct settings
{
   struct 
   {
      char driver[32];
      char context_driver[32];
      float scale;
      bool fullscreen;
      bool windowed_fullscreen;
      unsigned monitor_index;
      unsigned fullscreen_x;
      unsigned fullscreen_y;
      bool vsync;
      bool hard_sync;
      bool black_frame_insertion;
      unsigned swap_interval;
      unsigned hard_sync_frames;
      unsigned frame_delay;
#ifdef GEKKO
      unsigned viwidth;
      bool vfilter;
#endif
      bool smooth;
      bool force_aspect;
      bool crop_overscan;
      float aspect_ratio;
      bool aspect_ratio_auto;
      bool scale_integer;
      unsigned aspect_ratio_idx;
      unsigned rotation;

      char shader_path[PATH_MAX_LENGTH];
      bool shader_enable;

      char softfilter_plugin[PATH_MAX_LENGTH];
      float refresh_rate;
      bool threaded;

      char filter_dir[PATH_MAX_LENGTH];
      char shader_dir[PATH_MAX_LENGTH];

      char font_path[PATH_MAX_LENGTH];
      float font_size;
      bool font_enable;
      float msg_pos_x;
      float msg_pos_y;
      float msg_color_r;
      float msg_color_g;
      float msg_color_b;

      bool disable_composition;

      bool post_filter_record;
      bool gpu_record;
      bool gpu_screenshot;

      bool allow_rotate;
      bool shared_context;
      bool force_srgb_disable;
   } video;

   struct
   {
      bool menubar_enable;
      bool suspend_screensaver_enable;
   } ui;

#ifdef HAVE_MENU
   struct 
   {
      char driver[32];
      bool pause_libretro;
      bool timedate_enable;
      bool core_enable;
      bool throttle;
      char wallpaper[PATH_MAX_LENGTH];

      struct
      {
         bool enable;
      } mouse;

      struct
      {
         bool enable;
      } pointer;

      struct
      {
         struct
         {
            bool horizontal_enable;
            bool vertical_enable;
         } wraparound;
         struct
         {
            struct
            {
               bool supported_extensions_enable;
            } filter;
         } browser;
      } navigation;
      bool collapse_subgroups_enable;
      bool show_advanced_settings;
#ifdef HAVE_THREADS
      bool threaded_data_runloop_enable;
#endif

      unsigned entry_normal_color;
      unsigned entry_hover_color;
      unsigned title_color;
   } menu;
#endif

   struct
   {
      char driver[32];
      char device[PATH_MAX_LENGTH];
      bool allow;
      unsigned width;
      unsigned height;
   } camera;

   struct
   {
      char driver[32];
      bool allow;
      int update_interval_ms;
      int update_interval_distance;
   } location;

   struct
   {
      char driver[32];
      bool enable;
      bool mute_enable;
      unsigned out_rate;
      unsigned block_frames;
      char device[PATH_MAX_LENGTH];
      unsigned latency;
      bool sync;

      char dsp_plugin[PATH_MAX_LENGTH];
      char filter_dir[PATH_MAX_LENGTH];

      bool rate_control;
      float rate_control_delta;
      float max_timing_skew;
      float volume; /* dB scale. */
      char resampler[32];
   } audio;

   struct
   {
      char driver[32];
      char joypad_driver[32];
      char keyboard_layout[64];

      unsigned remap_ids[MAX_USERS][RARCH_BIND_LIST_END];
      struct retro_keybind binds[MAX_USERS][RARCH_BIND_LIST_END];
      struct retro_keybind autoconf_binds[MAX_USERS][RARCH_BIND_LIST_END];

      unsigned max_users;

      /* Set by autoconfiguration in joypad_autoconfig_dir.
       * Does not override main binds. */
      bool autoconfigured[MAX_USERS];

      unsigned libretro_device[MAX_USERS];
      unsigned analog_dpad_mode[MAX_USERS];

      bool remap_binds_enable;
      float axis_threshold;
      unsigned joypad_map[MAX_USERS];
      unsigned device[MAX_USERS];
      char device_names[MAX_USERS][64];
      bool autodetect_enable;
      bool netplay_client_swap_input;

      unsigned turbo_period;
      unsigned turbo_duty_cycle;

      bool overlay_enable;
      char overlay[PATH_MAX_LENGTH];
      float overlay_opacity;
      float overlay_scale;

      char autoconfig_dir[PATH_MAX_LENGTH];
      bool autoconfig_descriptor_label_show;
      bool input_descriptor_label_show;
      bool input_descriptor_hide_unbound;

      char remapping_path[PATH_MAX_LENGTH];
   } input;

   struct
   {
      bool enable;
      char overlay[PATH_MAX_LENGTH];
      float opacity;
      float scale;
   } osk;

   struct
   {
      unsigned mode;
   } archive;

   struct
   {
      char buildbot_url[PATH_MAX_LENGTH];
      char buildbot_assets_url[PATH_MAX_LENGTH];
      bool buildbot_auto_extract_archive;
   } network;

   int state_slot;

   char core_options_path[PATH_MAX_LENGTH];
   char content_history_path[PATH_MAX_LENGTH];
   char content_history_directory[PATH_MAX_LENGTH];
   unsigned content_history_size;

   char libretro[PATH_MAX_LENGTH];
   char libretro_directory[PATH_MAX_LENGTH];
   unsigned libretro_log_level;
   char libretro_info_path[PATH_MAX_LENGTH];
   char content_database[PATH_MAX_LENGTH];
   char cheat_database[PATH_MAX_LENGTH];
   char cursor_directory[PATH_MAX_LENGTH];
   char cheat_settings_path[PATH_MAX_LENGTH];
   char input_remapping_directory[PATH_MAX_LENGTH];

   char resampler_directory[PATH_MAX_LENGTH];
   char screenshot_directory[PATH_MAX_LENGTH];
   char system_directory[PATH_MAX_LENGTH];

   char extraction_directory[PATH_MAX_LENGTH];
   char playlist_directory[PATH_MAX_LENGTH];

   bool history_list_enable;
   bool rewind_enable;
   size_t rewind_buffer_size;
   unsigned rewind_granularity;

   float slowmotion_ratio;
   float fastforward_ratio;
   bool fastforward_ratio_throttle_enable;

   bool pause_nonactive;
   unsigned autosave_interval;

   bool block_sram_overwrite;
   bool savestate_auto_index;
   bool savestate_auto_save;
   bool savestate_auto_load;

   bool network_cmd_enable;
   uint16_t network_cmd_port;
   bool stdin_cmd_enable;

   char core_assets_directory[PATH_MAX_LENGTH];
   char assets_directory[PATH_MAX_LENGTH];
   char menu_config_directory[PATH_MAX_LENGTH];
#if defined(HAVE_MENU)
   char menu_content_directory[PATH_MAX_LENGTH];
   bool menu_show_start_screen;
#endif
   bool fps_show;
   bool load_dummy_on_core_shutdown;

   bool core_specific_config;

   char username[32];
   unsigned int user_language;

   bool config_save_on_exit;
} settings_t;

/**
 * config_get_default_camera:
 *
 * Gets default camera driver.
 *
 * Returns: Default camera driver.
 **/
const char *config_get_default_camera(void);

/**
 * config_get_default_location:
 *
 * Gets default location driver.
 *
 * Returns: Default location driver.
 **/
const char *config_get_default_location(void);

/**
 * config_get_default_osk:
 *
 * Gets default OSK driver.
 *
 * Returns: Default OSK driver.
 **/
const char *config_get_default_osk(void);

/**
 * config_get_default_video:
 *
 * Gets default video driver.
 *
 * Returns: Default video driver.
 **/
const char *config_get_default_video(void);

/**
 * config_get_default_audio:
 *
 * Gets default audio driver.
 *
 * Returns: Default audio driver.
 **/
const char *config_get_default_audio(void);

/**
 * config_get_default_audio_resampler:
 *
 * Gets default audio resampler driver.
 *
 * Returns: Default audio resampler driver.
 **/
const char *config_get_default_audio_resampler(void);

/**
 * config_get_default_input:
 *
 * Gets default input driver.
 *
 * Returns: Default input driver.
 **/
const char *config_get_default_input(void);

/**
 * config_get_default_joypad:
 *
 * Gets default input joypad driver.
 *
 * Returns: Default input joypad driver.
 **/
const char *config_get_default_joypad(void);

#ifdef HAVE_MENU
/**
 * config_get_default_menu:
 *
 * Gets default menu driver.
 *
 * Returns: Default menu driver.
 **/
const char *config_get_default_menu(void);
#endif

/**
 * config_load:
 *
 * Loads a config file and reads all the values into memory.
 *
 */
void config_load(void);

/**
 * config_load_override:
 *
 * Tries to append game-specific and core-specific configuration.
 * These settings will always have precedence, thus this feature
 * can be used to enforce overrides.
 *
 * Returns: false if there was an error or no action was performed.
 *
 */
bool config_load_override(void);

/**
 * config_unload_override:
 *
 * Unloads configuration overrides if overrides are active.
 *
 *
 * Returns: false if there was an error.
 */
bool config_unload_override(void);

/**
 * config_load_remap:
 *
 * Tries to append game-specific and core-specific remap files.
 *
 * Returns: false if there was an error or no action was performed.
 *
 */
bool config_load_remap(void);

/**
 * config_save_keybinds_file:
 * @path            : Path that shall be written to.
 *
 * Writes a keybinds config file to disk.
 *
 * Returns: true (1) on success, otherwise returns false (0).
 **/
bool config_save_keybinds_file(const char *path);

/**
 * config_save_file:
 * @path            : Path that shall be written to.
 *
 * Writes a config file to disk.
 *
 * Returns: true (1) on success, otherwise returns false (0).
 **/
bool config_save_file(const char *path);

settings_t *config_init(void);

void config_free(void);

settings_t *config_get_ptr(void);

#ifdef __cplusplus
}
#endif

#endif