#include <iostream>
#include <ncpp/NotCurses.hh>

using namespace ncpp;

typedef union Grapheme {
	uint8_t utf8[4];
	uint32_t to_uint32 = 0;
} Grapheme;

inline uint32_t utf32_to_egc(const uint32_t character) {
	Grapheme result;

	if (!notcurses_ucs32_to_utf8(&character, 1, result.utf8, 4)) {
		std::cerr << "Couldn't convert ucs32 " + std::to_string(character) + "to utf8!" << std::endl;
		return EXIT_FAILURE;
	};

	return result.to_uint32;
}

int run ()
{
	NotCurses nc;
	Plane* nc_plane = nc.get_stdplane();

	Cell corner_ul = Cell(utf32_to_egc(L'┌'));
	Cell corner_ur = Cell(utf32_to_egc(L'┐'));
	Cell corner_bl = Cell(utf32_to_egc(L'└'));
	Cell corner_br = Cell(utf32_to_egc(L'┘'));
	Cell horizontal_line = Cell(utf32_to_egc(L'─'));
	Cell vertical_line = Cell(utf32_to_egc(L'│'));
	nc_plane->perimeter(
		corner_ul, 
		corner_ur, 
		corner_bl, 
		corner_br, 
		horizontal_line, 
		vertical_line, 
		0
	);

	nc_plane->putstr(0, 1, "channel");

	nc_plane->putstr(1, 1, "─");

	/*nc_plane->cursor_move(0, 0);
	Cell start; nc_plane->get_at(0, 0, start);
	//nc_plane->get_at(0, 0, &end);
	nc_plane->vline(
		start,
		10
	);*/

	while (true) {
	
		nc.render();
		sleep(1);
	}

	return 0;
}

int main ()
{
	if (!setlocale (LC_ALL, "")){
		std::cerr << "Couldn't set locale based on user preferences" << std::endl;
		return EXIT_FAILURE;
	}
	
	try {
		return run ();
	} catch (ncpp::init_error &e) {
		std::cerr << "Initialization error: " << e.what () << std::endl;
	} catch (ncpp::invalid_state_error &e) {
		std::cerr << "Invalid state error: " << e.what () << std::endl;
	} catch (ncpp::invalid_argument &e) {
		std::cerr << "Invalid argument error: " << e.what () << std::endl;
	}

	return 1;
}