#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(Font&& move)
  : font_(move.font_)
{
  move.font_ = nullptr;
}

Font& Font::operator=(Font&& move)
{
  if (font_)
    TTF_CloseFont(font_);
  font_ = move.font_;
  move.font_ = nullptr;

  return *this;
}

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

Texture2D Font::render(std::string const& text, bool fast) const
{
  SDLSurfaceUPtr surf;
  if (fast)
    surf.reset(TTF_RenderUTF8_Solid(font_, text.c_str(), SDL_Color{255, 255, 255, 255}));
  else
    surf.reset(TTF_RenderUTF8_Blended(font_, text.c_str(), SDL_Color{255, 255, 255, 255}));
  
  if (!surf)
    throw TTFException{};
  
  Texture2D ret{surf.get()};

  return ret;
}

TTF_Font* Font::getFont() const
{
  return font_;
}