/*Troy Rosin*/

#include <SDL2/SDL.h>
#include <SDL2/SDL_image.h>
#include <SDL2/SDL_ttf.h>
#include <mydebug.h>
#include <game.h>
#include <input.h>
#include <deck.h>
#include <main.h>
#include <options.h>

#define SPACING 20

struct options_ctx
{
  int selected_opt;
  char option_strings[NUM_OPTIONS][MAX_NAMESZ];
  TTF_Font* font;
  SDL_Surface *gameplay_surface, *video_surface, *audio_surface,
    *mainmenu_surface, *exit_surface;
  SDL_Texture *gameplay_tex, *video_tex, *audio_tex, *mainmenu_tex, *exit_tex; 
  SDL_Rect options_rects[NUM_OPTIONS];
  SDL_Rect options_boxs[NUM_OPTIONS];
  SDL_Texture *string_texs[NUM_OPTIONS];
};

struct options_ctx opt;

int get_sel_opt()
{
  return opt.selected_opt;
}

void set_sel_opt(int i)
{
  opt.selected_opt = i;
  return;
}

void init_options()
{
  int i;  
  
  opt.selected_opt = GP_OPT_SEL; 
 
  strcpy(opt.option_strings[0], "GAMEPLAY");
  strcpy(opt.option_strings[1], "VIDEO");
  strcpy(opt.option_strings[2], "AUDIO");
  strcpy(opt.option_strings[3], "MAIN MENU");
  strcpy(opt.option_strings[4], "EXIT GAME");

  opt.font = TTF_OpenFont("assets/font.ttf", 24);
  
  opt.gameplay_surface = TTF_RenderText_Solid(opt.font, opt.option_strings[0], white);
  opt.gameplay_tex = SDL_CreateTextureFromSurface(renderer, opt.gameplay_surface); 
  opt.video_surface = TTF_RenderText_Solid(opt.font, opt.option_strings[1], white);
  opt.video_tex = SDL_CreateTextureFromSurface(renderer, opt.video_surface); 
  opt.audio_surface = TTF_RenderText_Solid(opt.font, opt.option_strings[2], white);
  opt.audio_tex = SDL_CreateTextureFromSurface(renderer, opt.audio_surface); 
  opt.mainmenu_surface = TTF_RenderText_Solid(opt.font, opt.option_strings[3], white);
  opt.mainmenu_tex = SDL_CreateTextureFromSurface(renderer, opt.mainmenu_surface); 
  opt.exit_surface = TTF_RenderText_Solid(opt.font, opt.option_strings[4], white);
  opt.exit_tex = SDL_CreateTextureFromSurface(renderer, opt.exit_surface); 
  
  opt.string_texs[0] = opt.gameplay_tex;
  opt.string_texs[1] = opt.video_tex;
  opt.string_texs[2] = opt.audio_tex;
  opt.string_texs[3] = opt.mainmenu_tex;
  opt.string_texs[4] = opt.exit_tex;


  opt.options_boxs[0].w = (DEF_WINDOW_WIDTH >> 2) + (DEF_WINDOW_WIDTH >> 3) ;
  opt.options_boxs[0].x = (DEF_WINDOW_WIDTH >> 1) - (opt.options_boxs[0].w >> 1);
  opt.options_boxs[0].y = SPACING << 3;
  opt.options_boxs[0].h = (DEF_WINDOW_HEIGHT >> 3);
  
  opt.options_rects[0].w = ((opt.options_boxs[0].w - (SPACING << 1)) / 9) * strlen(opt.option_strings[0]);
  opt.options_rects[0].h = opt.options_boxs[0].h - (SPACING << 1);
  opt.options_rects[0].y = opt.options_boxs[0].y + SPACING;
  opt.options_rects[0].x = opt.options_boxs[0].x + SPACING;
 
  for(i = 1; i < NUM_OPTIONS; ++i)
  {
    opt.options_boxs[i].w = opt.options_boxs[0].w;
    opt.options_boxs[i].x = opt.options_boxs[0].x;
    opt.options_boxs[i].h = opt.options_boxs[0].h;
    opt.options_boxs[i].y = opt.options_boxs[i-1].y + SPACING + opt.options_boxs[i].h;

    opt.options_rects[i].w = ((opt.options_boxs[0].w - (SPACING << 1)) / 9) * strlen(opt.option_strings[i]);
    opt.options_rects[i].h = opt.options_rects[0].h;
    opt.options_rects[i].y = opt.options_boxs[i].y + SPACING;
    opt.options_rects[i].x = opt.options_boxs[i].x + SPACING;
  }
    
  PRINT_M(INIT OPTIONS)
  return;
}

void opt_render_selected()
{
  SDL_SetRenderDrawColor(renderer, 32, 64, 32, 255);
  SDL_RenderFillRect(renderer, &opt.options_boxs[opt.selected_opt]);
  SDL_RenderCopy(renderer, opt.string_texs[opt.selected_opt], NULL, &opt.options_rects[opt.selected_opt]);
}
void render_options()
{ 
  int i; 
  
  SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
  SDL_RenderClear(renderer);  

  //render grey boxs for options
  SDL_SetRenderDrawColor(renderer, 64, 64, 64, 255);
  for(i = 0; i < NUM_OPTIONS; i++)
  {
    SDL_RenderFillRect(renderer, &opt.options_boxs[i]);
    SDL_RenderCopy(renderer, opt.string_texs[i], NULL, &opt.options_rects[i]);
  }
  opt_render_selected();

  SDL_RenderPresent(renderer);
  return;
}