/*  RetroArch - A frontend for libretro.
 *  Copyright (C) 2010-2013 - Hans-Kristian Arntzen
 *  Copyright (C) 2011-2013 - 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/>.
 */

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

#include "../general.h"
#include "rarch_console_settings.h"

void rarch_settings_change(unsigned setting)
{
   switch(setting)
   {
      case S_ASPECT_RATIO_DECREMENT:
         if(g_settings.video.aspect_ratio_idx > 0)
            g_settings.video.aspect_ratio_idx--;
         break;
      case S_ASPECT_RATIO_INCREMENT:
         if(g_settings.video.aspect_ratio_idx < LAST_ASPECT_RATIO)
            g_settings.video.aspect_ratio_idx++;
         break;
      case S_AUDIO_MUTE:
         g_extern.audio_data.mute = !g_extern.audio_data.mute;
         break;
      case S_AUDIO_CONTROL_RATE_DECREMENT:
         if (g_settings.audio.rate_control_delta > 0.0)
            g_settings.audio.rate_control_delta -= 0.001;
         if (g_settings.audio.rate_control_delta == 0.0)
            g_settings.audio.rate_control = false;
         else
            g_settings.audio.rate_control = true;
         break;
      case S_AUDIO_CONTROL_RATE_INCREMENT:
         if (g_settings.audio.rate_control_delta < 0.2)
            g_settings.audio.rate_control_delta += 0.001;
         g_settings.audio.rate_control = true;
         break;
      case S_FRAME_ADVANCE:
         g_extern.lifecycle_state |= (1ULL << RARCH_FRAMEADVANCE);
         g_extern.console.rmenu.mode = MODE_EMULATION;
         break;
      case S_HW_TEXTURE_FILTER:
         g_settings.video.smooth = !g_settings.video.smooth;
         break;
      case S_HW_TEXTURE_FILTER_2:
         g_settings.video.second_pass_smooth = !g_settings.video.second_pass_smooth;
         break;
      case S_OVERSCAN_DECREMENT:
         g_extern.console.screen.overscan_amount -= 0.01f;
         g_extern.console.screen.state.overscan.enable = true;
         if(g_extern.console.screen.overscan_amount == 0.0f)
            g_extern.console.screen.state.overscan.enable = false;
         break;
      case S_OVERSCAN_INCREMENT:
         g_extern.console.screen.overscan_amount += 0.01f;
         g_extern.console.screen.state.overscan.enable = true;
         if(g_extern.console.screen.overscan_amount == 0.0f)
            g_extern.console.screen.state.overscan.enable = 0;
         break;
      case S_RESOLUTION_PREVIOUS:
         if (g_extern.console.screen.resolutions.current.idx)
         {
            g_extern.console.screen.resolutions.current.idx--;
            g_extern.console.screen.resolutions.current.id = g_extern.console.screen.resolutions.list[g_extern.console.screen.resolutions.current.idx];
         }
         break;
      case S_RESOLUTION_NEXT:
         if (g_extern.console.screen.resolutions.current.idx + 1 < g_extern.console.screen.resolutions.count)
         {
            g_extern.console.screen.resolutions.current.idx++;
            g_extern.console.screen.resolutions.current.id = g_extern.console.screen.resolutions.list[g_extern.console.screen.resolutions.current.idx];
         }
         break;
      case S_QUIT:
         g_extern.console.rmenu.state.ingame_menu.enable = false;
         g_extern.console.rmenu.mode = MODE_EXIT;
         break;
      case S_QUIT_RARCH:
         g_extern.console.rmenu.mode = MODE_EXIT;
         break;
      case S_RETURN_TO_GAME:
         g_extern.console.rmenu.mode = MODE_EMULATION;
         break;
      case S_RETURN_TO_LAUNCHER:
         g_extern.console.external_launch.enable = true;
         g_extern.console.rmenu.mode = MODE_EXIT;
         break;
      case S_RETURN_TO_MENU:
         g_extern.console.rmenu.mode = MODE_MENU;
         break;
      case S_ROTATION_DECREMENT:
         if(g_extern.console.screen.orientation > 0)
            g_extern.console.screen.orientation--;
         break;
      case S_ROTATION_INCREMENT:
         if(g_extern.console.screen.orientation < LAST_ORIENTATION)
            g_extern.console.screen.orientation++;
         break;
      case S_START_RARCH:
         g_extern.console.rmenu.mode = MODE_INIT;
         break;
      case S_REWIND:
         g_settings.rewind_enable = !g_settings.rewind_enable;
         break;
      case S_SAVESTATE_DECREMENT:
         if(g_extern.state_slot != 0)
            g_extern.state_slot--;
         break;
      case S_SAVESTATE_INCREMENT:
         g_extern.state_slot++;
         break;
      case S_SCALE_ENABLED:
         g_settings.video.render_to_texture = !g_settings.video.render_to_texture;
         break;
      case S_SCALE_FACTOR_DECREMENT:
         g_settings.video.fbo.scale_x -= 1.0f;
         g_settings.video.fbo.scale_y -= 1.0f;
         break;
      case S_SCALE_FACTOR_INCREMENT:
         g_settings.video.fbo.scale_x += 1.0f;
         g_settings.video.fbo.scale_y += 1.0f;
         break;
      case S_THROTTLE:
         if(!g_extern.system.force_nonblock)
            g_extern.console.screen.state.throttle.enable = 
               !g_extern.console.screen.state.throttle.enable;
         break;
      case S_TRIPLE_BUFFERING:
         g_extern.console.screen.state.triple_buffering.enable = 
            !g_extern.console.screen.state.triple_buffering.enable;
         break;
   }
}

void rarch_settings_default(unsigned setting)
{
   switch(setting)
   {
      case S_DEF_ASPECT_RATIO:
         g_settings.video.aspect_ratio_idx = ASPECT_RATIO_4_3;
         break;
      case S_DEF_AUDIO_MUTE:
         g_extern.audio_data.mute = false;
         break;
      case S_DEF_AUDIO_CONTROL_RATE:
#ifdef GEKKO
         g_settings.audio.rate_control_delta = 0.006;
         g_settings.audio.rate_control = true;
#else
         g_settings.audio.rate_control_delta = 0.0;
         g_settings.audio.rate_control = false;
#endif
         break;
      case S_DEF_HW_TEXTURE_FILTER:
         g_settings.video.smooth = 1;
         break;
      case S_DEF_HW_TEXTURE_FILTER_2:
         g_settings.video.second_pass_smooth = 1;
         break;
      case S_DEF_OVERSCAN:
         g_extern.console.screen.overscan_amount = 0.0f;
         g_extern.console.screen.state.overscan.enable = false;
         break;
      case S_DEF_ROTATION:
         g_extern.console.screen.orientation = ORIENTATION_NORMAL;
         break;
      case S_DEF_THROTTLE:
         if(!g_extern.system.force_nonblock)
            g_extern.console.screen.state.throttle.enable = true;
         break;
      case S_DEF_TRIPLE_BUFFERING:
         g_extern.console.screen.state.triple_buffering.enable = true;
         break;
      case S_DEF_SAVE_STATE:
         g_extern.state_slot = 0;
         break;
      case S_DEF_SCALE_ENABLED:
         g_settings.video.render_to_texture = true;
         g_settings.video.fbo.scale_x = 2.0f;
         g_settings.video.fbo.scale_y = 2.0f;
         break;
      case S_DEF_SCALE_FACTOR:
         g_settings.video.fbo.scale_x = 2.0f;
         g_settings.video.fbo.scale_y = 2.0f;
         break;
   }
}

void rarch_settings_msg(unsigned setting, unsigned delay)
{
   char str[PATH_MAX], tmp[PATH_MAX];
   msg_queue_clear(g_extern.msg_queue);

   (void)tmp;

   switch(setting)
   {
      case S_MSG_CACHE_PARTITION:
         snprintf(str, sizeof(str), "INFO - All the contents of the ZIP files you have selected\nare extracted to this partition.");
         break;
      case S_MSG_CHANGE_CONTROLS:
         snprintf(str, sizeof(str), "INFO - Press LEFT/RIGHT to change the controls, and press\n[RetroPad Start] to reset a button to default values.");
         break;
      case S_MSG_EXTRACTED_ZIPFILE:
         switch(g_extern.file_state.zip_extract_mode)
         {
            case ZIP_EXTRACT_TO_CURRENT_DIR:
               snprintf(str, sizeof(str), "INFO - ZIP file successfully extracted to current directory.");
               break;
            case ZIP_EXTRACT_TO_CURRENT_DIR_AND_LOAD_FIRST_FILE:
               snprintf(str, sizeof(str), "INFO - ZIP file successfully extracted, now loading first file.");
               break;
#ifdef HAVE_HDD_CACHE_PARTITION
            case ZIP_EXTRACT_TO_CACHE_DIR:
               snprintf(str, sizeof(str), "INFO - ZIP file successfully extracted to cache partition.");
               break;
#endif
         }
         break;
      case S_MSG_LOADING_ROM:
         fill_pathname_base(tmp, g_extern.file_state.rom_path, sizeof(tmp));
         snprintf(str, sizeof(str), "INFO - Loading %s...", tmp);
         break;
      case S_MSG_DIR_LOADING_ERROR:
         snprintf(str, sizeof(str), "ERROR - Failed to open selected directory.");
         break;
      case S_MSG_ROM_LOADING_ERROR:
         snprintf(str, sizeof(str), "ERROR - An error occurred during ROM loading.");
         break;
      case S_MSG_NOT_IMPLEMENTED:
         snprintf(str, sizeof(str), "TODO - Not yet implemented.");
         break;
      case S_MSG_RESIZE_SCREEN:
         snprintf(str, sizeof(str), "INFO - Resize the screen by moving around the two analog sticks.\nPress [RetroPad X] to reset to default values, and [RetroPad A] to go back.\nTo select the resized screen mode, set Aspect Ratio to: 'Custom'.");
         break;
      case S_MSG_RESTART_RARCH:
         snprintf(str, sizeof(str), "INFO - You need to restart RetroArch.");
         break;
      case S_MSG_SELECT_LIBRETRO_CORE:
         snprintf(str, sizeof(str), "INFO - Select a Libretro core from the menu.");
         break;
      case S_MSG_SELECT_SHADER:
         snprintf(str, sizeof(str), "INFO - Select a shader from the menu.");
         break;
      case S_MSG_SHADER_LOADING_SUCCEEDED:
         snprintf(str, sizeof(str), "INFO - Shader successfully loaded.");
         break;
   }

   msg_queue_push(g_extern.msg_queue, str, 1, delay);
}

void rarch_settings_create_menu_item_label_w(wchar_t *strwbuf, unsigned setting, size_t size)
{
   char str[PATH_MAX];

   rarch_settings_create_menu_item_label(str, setting, sizeof(str));
   convert_char_to_wchar(strwbuf, str, size);
}

void rarch_settings_create_menu_item_label(char * str, unsigned setting, size_t size)
{
   switch (setting)
   {
      case S_LBL_ASPECT_RATIO:
         snprintf(str, size, "Aspect Ratio: %s", aspectratio_lut[g_settings.video.aspect_ratio_idx].name);
         break;
      case S_LBL_SHADER:
         snprintf(str, size, "Shader #1: %s", g_settings.video.cg_shader_path);
         break;
      case S_LBL_SHADER_2:
         snprintf(str, size, "Shader #2: %s", g_settings.video.second_pass_shader);
         break;
      case S_LBL_RARCH_VERSION:
         snprintf(str, size, "RetroArch %s", PACKAGE_VERSION);
         break;
      case S_LBL_SCALE_FACTOR:
         snprintf(str, size, "Scale Factor: %f (X) / %f (Y)", g_settings.video.fbo.scale_x, g_settings.video.fbo.scale_y);
         break;
      case S_LBL_ROTATION:
         snprintf(str, size, "Rotation: %s", rotation_lut[g_extern.console.screen.orientation]);
         break;
      case S_LBL_LOAD_STATE_SLOT:
         snprintf(str, size, "Load State #%d", g_extern.state_slot);
         break;
      case S_LBL_SAVE_STATE_SLOT:
         snprintf(str, size, "Save State #%d", g_extern.state_slot);
         break;
      case S_LBL_ZIP_EXTRACT:
	 {
            char msg[128];
	    switch(g_extern.file_state.zip_extract_mode)
            {
               case ZIP_EXTRACT_TO_CURRENT_DIR:
                  snprintf(msg, sizeof(msg), "Current dir");
                  break;
               case ZIP_EXTRACT_TO_CURRENT_DIR_AND_LOAD_FIRST_FILE:
                  snprintf(msg, sizeof(msg), "Current dir and load first file");
                  break;
			   case ZIP_EXTRACT_TO_CACHE_DIR:
                  snprintf(msg, sizeof(msg), "Cache dir");
                  break;
            }
            snprintf(str, size, "ZIP Extract: %s", msg);
	 }
         break;
   }
}

#if defined(_XBOX360)
#define DEFAULT_GAMMA 1
#else
#define DEFAULT_GAMMA 0
#endif

void rarch_settings_set_default(void)
{
   // g_settings
   g_settings.rewind_enable = false;
#ifdef HAVE_XML
   strlcpy(g_settings.cheat_database, default_paths.port_dir, sizeof(g_settings.cheat_database));
#endif

#if defined(HAVE_CG) || defined(HAVE_HLSL) || defined(HAVE_GLSL)
   strlcpy(g_settings.video.cg_shader_path, default_paths.shader_file, sizeof(g_settings.video.cg_shader_path));
   strlcpy(g_settings.video.second_pass_shader, default_paths.shader_file, sizeof(g_settings.video.second_pass_shader));
   g_settings.video.second_pass_smooth = true;
#endif

#if defined(_XBOX360)
   g_settings.video.shader_type = RARCH_SHADER_HLSL;
#elif defined(__PSL1GHT__)
   g_settings.video.shader_type = RARCH_SHADER_GLSL;
#elif defined(__CELLOS_LV2__)
   g_settings.video.shader_type = RARCH_SHADER_CG;
#elif defined(HAVE_GLSL)
   g_settings.video.shader_type = RARCH_SHADER_GLSL;
#else
   g_settings.video.shader_type = RARCH_SHADER_NONE;
#endif

#ifdef HAVE_FBO
   g_settings.video.fbo.scale_x = 2.0f;
   g_settings.video.fbo.scale_y = 2.0f;
#endif

#ifdef GEKKO
   g_settings.audio.rate_control_delta = 0.006;
   g_settings.audio.rate_control = true;
#endif

   g_settings.video.render_to_texture = true;
   g_settings.video.smooth = true;
   g_settings.video.vsync = true;
   g_settings.video.refresh_rate = 59.92;

   strlcpy(g_settings.system_directory, default_paths.system_dir, sizeof(g_settings.system_directory));

   g_settings.video.msg_pos_x = 0.05f;
   g_settings.video.msg_pos_y = 0.90f;
   g_settings.video.aspect_ratio = -1.0f;

   // g_extern
   strlcpy(g_extern.console.main_wrap.paths.default_sram_dir, default_paths.sram_dir, sizeof(g_extern.console.main_wrap.paths.default_sram_dir));
   g_extern.console.screen.state.overscan.enable = false;
   g_extern.console.screen.overscan_amount = 0.0f;
   g_extern.console.sound.custom_bgm.enable = true;
   g_extern.console.screen.gamma_correction = DEFAULT_GAMMA;
   g_extern.console.screen.state.screenshots.enable = true;
   g_extern.console.screen.state.throttle.enable = true;
   g_extern.console.rmenu.state.msg_info.enable = true;
   g_extern.console.screen.state.triple_buffering.enable = true;
   g_extern.console.main_wrap.state.default_savestate_dir.enable = false;
   g_extern.console.main_wrap.state.default_sram_dir.enable = false;
   g_extern.console.screen.orientation = ORIENTATION_NORMAL;
   g_extern.console.screen.resolutions.current.id = 0;
   strlcpy(g_extern.console.main_wrap.paths.default_rom_startup_dir, default_paths.filebrowser_startup_dir, sizeof(g_extern.console.main_wrap.paths.default_rom_startup_dir));
   strlcpy(g_extern.console.main_wrap.paths.default_savestate_dir, default_paths.savestate_dir, sizeof(g_extern.console.main_wrap.paths.default_savestate_dir));
   g_settings.video.aspect_ratio_idx = 0;
   g_extern.console.block_config_read = true;
   g_extern.state_slot = 0;
   g_extern.audio_data.mute = 0;
   g_extern.verbose = true;

   g_extern.console.rmenu.mode = MODE_MENU;
   g_extern.console.rmenu.font_size = 1.0f;
   g_extern.console.sound.mode = SOUND_MODE_NORMAL;
   g_extern.console.screen.viewports.custom_vp.width = 0;
   g_extern.console.screen.viewports.custom_vp.height = 0;
   g_extern.console.screen.viewports.custom_vp.x = 0;
   g_extern.console.screen.viewports.custom_vp.y = 0;
#ifdef _XBOX1
   g_extern.console.screen.state.flicker_filter.enable = 1;
   g_extern.console.sound.volume_level = 0;
#endif
   g_extern.console.screen.state.soft_filter.enable = true;
#ifdef HAVE_ZLIB
   g_extern.file_state.zip_extract_mode = 0;
#endif
}