pub const MetadataLinux = struct {
    statx: std.os.linux.Statx,

    const Self = @This();

    /// Returns the size of the file
    pub fn size(self: Self) u64 {
        return self.statx.size;
    }

    /// Returns a `Permissions` struct, representing the permissions on the file
    pub fn permissions(self: Self) Permissions {
        return Permissions{ .inner = PermissionsUnix{ .mode = self.statx.mode } };
    }

    /// Returns the `Kind` of the file
    pub fn kind(self: Self) Kind {
        const m = self.statx.mode & posix.S.IFMT;

        switch (m) {
            posix.S.IFBLK => return .block_device,
            posix.S.IFCHR => return .character_device,
            posix.S.IFDIR => return .directory,
            posix.S.IFIFO => return .named_pipe,
            posix.S.IFLNK => return .sym_link,
            posix.S.IFREG => return .file,
            posix.S.IFSOCK => return .unix_domain_socket,
            else => {},
        }

        return .unknown;
    }

    /// Returns the last time the file was accessed in nanoseconds since UTC 1970-01-01
    pub fn accessed(self: Self) i128 {
        return @as(i128, self.statx.atime.sec) * std.time.ns_per_s + self.statx.atime.nsec;
    }

    /// Returns the last time the file was modified in nanoseconds since UTC 1970-01-01
    pub fn modified(self: Self) i128 {
        return @as(i128, self.statx.mtime.sec) * std.time.ns_per_s + self.statx.mtime.nsec;
    }

    /// Returns the time the file was created in nanoseconds since UTC 1970-01-01.
    /// Returns null if this is not supported by the filesystem, or on kernels before than version 4.11
    pub fn created(self: Self) ?i128 {
        if (self.statx.mask & std.os.linux.STATX_BTIME == 0) return null;
        return @as(i128, self.statx.btime.sec) * std.time.ns_per_s + self.statx.btime.nsec;
    }
}