#include <png.h>
#include <fstream>

#include <core/Logger.hpp>
#include "GameWindow.hpp"

GameWindow::GameWindow() :
	window(nullptr), glcontext(nullptr)
{

}


void GameWindow::create(size_t w, size_t h, bool fullscreen)
{
	uint32_t style = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE;
	if (fullscreen)
		style |= SDL_WINDOW_FULLSCREEN;

	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
	SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
	SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);

	window = SDL_CreateWindow("RWGame", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, w, h, style);
	glcontext = SDL_GL_CreateContext(window);
}


void GameWindow::close()
{
	SDL_GL_DeleteContext(glcontext);
	SDL_DestroyWindow(window);

	window = nullptr;
}


void GameWindow::showCursor()
{
	SDL_SetRelativeMouseMode(SDL_FALSE);
	SDL_ShowCursor(SDL_ENABLE);
	SDL_SetWindowGrab(window, SDL_FALSE);
}


void GameWindow::hideCursor()
{
	SDL_SetRelativeMouseMode(SDL_TRUE);
	SDL_ShowCursor(SDL_DISABLE);
	SDL_SetWindowGrab(window, SDL_TRUE);
}


glm::ivec2 GameWindow::getSize() const
{
	int x, y;
	SDL_GL_GetDrawableSize(window, &x, &y);

	return glm::ivec2(x, y);
}