#include <cassert>
#include <SDL2/SDL_ttf.h>

#include "common.hh"
#include "texture.hh"
#include "font.hh"

Font::Font(std::string const& filename, unsigned ptsize)
  : font_{nullptr}
{
  assert(TTF_WasInit());
  font_ = TTF_OpenFont(filename.c_str(), ptsize);
  if(!font_)
    throw TTFException{};
}

Font::~Font()
{
  if(font_)
    TTF_CloseFont(font_);
}

Texture2D Font::render(std::string const& text, bool fast) const {
  SDL_Surface *surf;
  if(fast)
    surf = TTF_RenderUTF8_Solid(font_, text.c_str(), SDL_Color{255, 255, 255, 255});
  else
    surf = TTF_RenderUTF8_Blended(font_, text.c_str(), SDL_Color{255, 255, 255, 255});
  
  if(!surf)
    throw TTFException{};
  
  try {
    Texture2D ret{surf};
    SDL_FreeSurface(surf);
    return ret;
  } catch(...) {
    SDL_FreeSurface(surf);
    throw;
  }
}