#include "filesystem.hpp"
#include <sys/stat.h>
#include <stdlib.h>
#include <linux/limits.h>

bool FSLib::exists(const std::string &path) {
    struct stat path_stat;
    return stat( path.c_str(), &path_stat ) == 0;
}

bool FSLib::isDirectory(const std::string &path) {
    struct stat path_stat;
    stat( path.c_str(), &path_stat );
    return S_ISDIR(path_stat.st_mode);
}

std::string FSLib::canonical(const std::string &path) {
    char *canonical_path = static_cast<char *>(malloc(PATH_MAX));
    if( realpath(path.c_str(), canonical_path) == nullptr )
        return "";
    std::string canonical_string{canonical_path};
    free(canonical_path);
    return canonical_string;
}

bool FSLib::rename(const std::string &file_a, const std::string &file_b) {
    return ::rename( file_a.c_str(), file_b.c_str() ) == 0;
}