#include "CLI/App.hpp"
#include "CLI/Formatter.hpp"
#include "CLI/Config.hpp"

#include <iostream>

#include <png++/png.hpp>

int main(int argc,char* argv[]){
	CLI::App app{"png2hex"};
	std::string filename = "";
	app.add_option("-f,--file", filename, "PNG image file")->required();

	CLI11_PARSE(app,argc,argv);

	png::image<png::rgba_pixel> image(filename);

	std::cout << std::hex << std::uppercase << std::setfill('0') << std::setw(6);
	
	for (png::uint_32 y = 0; y < image.get_height(); ++y){
		for (png::uint_32 x = 0; x < image.get_width(); ++x){
			unsigned int pxl=0; //On peut raisonnablement esperer que int puisse stocker 24bits
			png::rgba_pixel p=image[y][x];
			int ps=sizeof(p.red)*8;

			pxl=p.red>>(ps-5);
			pxl=pxl<<6 | (p.green>>(ps-6));
			pxl=pxl<<5 | (p.blue>>(ps-5));
			pxl=pxl<<8 | (p.alpha>>(ps-8));
			std::cout << std::setw(6) << pxl << '\n';
		}
	}
	return 1;
}