#include "file.h"

#include <iomanip>

FileSize::FileSize(uint64_t fs) : fs(fs) {}

File::File(uint64_t fs, uint64_t inode, uint64_t linkcount, const std::string& path) :
	filesize(fs), inode(inode), linkcount(linkcount), path(path) {}

Hash File::createHash() {
	Hash hash;
	Hash::create(hash, path);
	return hash;
}

std::ostream& operator<<(std::ostream& str, const FileSize& fs) {
	static const char PREFIX[] {' ', 'K', 'M', 'G', 'T', 'P', 'E'};
	static const uint_fast8_t PREFIXCOUNT = 7;
	static const uint_fast32_t FACTOR = 1000;
	static const uint_fast32_t COMMA = 100; // nach komma stellen
	uint64_t cpy = fs.fs * COMMA;
	uint_fast8_t prefix = 0;
	while(cpy > (FACTOR * 3 * COMMA) && prefix < PREFIXCOUNT) {
		cpy /= FACTOR;
		++prefix;
	}

	str << std::setprecision(2) << std::fixed << (cpy / (float) COMMA);
	if(prefix > 0)
		str << PREFIX[prefix];
	return str << "B";
}