cudir/cudir.cc

#include <iostream>
#include <iomanip>
#include <vector>
#include <chrono>
#include <algorithm>
#include <filesystem>

#include "Entry.h"

auto
getEntries( const std::filesystem::path where )
{
	std::vector< Entry > entries;

	for( const auto &entry: std::filesystem::directory_iterator{ where } )
	{
		const auto time= std::filesystem::file_time_type::clock::to_sys( last_write_time( entry.path() ) );
		const auto day= std::chrono::floor< std::chrono::days >( time );
		const std::chrono::year_month_day ymd{ day };
		const auto time_since_midnight= day - time;
		const std::chrono::hh_mm_ss time_of_day{ std::chrono::floor< std::chrono::minutes >( time_since_midnight ) };

		entries.push_back( Entry{ entry.path().filename(), drwx( entry ), entry.is_directory() ? 0 : file_size( entry.path() ),
				static_cast< int >( ymd.year() ), static_cast< unsigned >( ymd.month() ), static_cast< unsigned >( ymd.day() ),
				time_of_day.hours().count(), time_of_day.minutes().count(),
				entry.is_directory(), is_exe( entry ) } );
	}

	std::sort( begin( entries ), end( entries ), []( const auto &lhs, const auto &rhs ) { return lhs.name < rhs.name; } );

	return entries;
}

	using namespace std::literals::string_literals;

namespace C
{
	constexpr int sizeWidth= 14;
	constexpr int dateWidth= "1982-12-21"s.size();
	constexpr int timeWidth= "12:34"s.size();
}

int
main()
{
	std::filesystem::path where="./";

	const auto entries= getEntries( where );

	const auto widest= std::max_element( begin( entries ), end( entries ),
			[]( const auto &lhs, const auto &rhs ) { return lhs.name.size() < rhs.name.size(); } )->name.size();

	const int rowWidth= widest + C::filePadding + C::sizeWidth + 2 + 10 + 2 + C::dateWidth + 1 + C::timeWidth;

	std::cout << "";
	for( int i= 0; i < rowWidth; ++i ) std::cout << "\u2500";
	std::cout << "\u252c";
	for( int i= 0; i < rowWidth; ++i ) std::cout << "\u2500";
	std::cout << "" << std::endl;

	std::size_t fileCount= 0;
	std::size_t totalSize= 0;
	std::size_t totalStorage= 0;
	bool side= false;
	for( const auto &entry: entries )
	{
		++fileCount;
		totalSize+= entry.size;
		std::cout << format_entry( entry, widest ) << " ";
		if( entry.is_dir )
		{
			std::cout << "";
			std::cout << std::setw( C::sizeWidth - 1 ) << std::setfill( ' ' ) << std::right << "<DIR>" << ' ';
		}
		else
		{
			//std::cout << "                ";
			std::cout << "\e[1;33;93m" << std::setw( C::sizeWidth ) << std::setfill( ' ' ) << entry.size;
		}
		std::cout << " ";
		std::cout << "" << entry.perms << "";
		std::cout << "  ";

		// Date
		std::cout << "\e[1;31;91m";
		std::cout << std::setw( 2 ) << std::setfill( '0' ) << entry.year % 10000 << '-';
		std::cout << std::setw( 2 ) << std::setfill( '0' ) << entry.month << '-';
		std::cout << std::setw( 2 ) << std::setfill( '0' ) << entry.day;
		std::cout << "\e[m";

		std::cout << ' ';

		// Time
		std::cout << "\e[1;32;92m";
		std::cout << std::setw( 2 ) << std::setfill( '0' ) << entry.hour << ':';
		std::cout << std::setw( 2 ) << std::setfill( '0' ) << entry.minute;
		std::cout << "\e[m";

		if( side == false )
		{
			std::cout << "\u2502";
			side= true;
		}
		else
		{
			side= false;
			std::cout << std::endl;
		}
	}
	if( side ) std::cout << std::endl;

	std::cout << "";
	for( int i= 0; i < rowWidth; ++i ) std::cout << "\u2500";
	std::cout << "\u2534";
	for( int i= 0; i < rowWidth; ++i ) std::cout << "\u2500";
	std::cout << "" << std::endl;

	std::cout << std::setw( C::sizeWidth ) << std::setfill( ' ' ) << std::right << "\e[;1;36;96m" << fileCount;
	std::cout << "\e[;1;32;92m files totaling \e[;1;36;96m" << totalSize << "\e[;1;32;92m bytes.\e[m" << std::endl;

	return EXIT_SUCCESS;
}