C# Timespan to human readable string extension method

timespan-to-human-readable-string.cs

# Based on https://stackoverflow.com/a/41966914

public static class ExtensionMethods
{
    public static string ToHumanReadable(this TimeSpan timeSpan)
    {
        Func<Tuple<int, string>, string> tupleFormatter = t => $"{t.Item1} {t.Item2}{(t.Item1 == 1 ? string.Empty : "s")}";
        var components = new List<Tuple<int, string>>
        {
            Tuple.Create((int) timeSpan.TotalDays, "day"),
            Tuple.Create(timeSpan.Hours, "hour"),
            Tuple.Create(timeSpan.Minutes, "minute"),
            Tuple.Create(timeSpan.Seconds, "second"),
        };

        components.RemoveAll(i => i.Item1 == 0);

        string extra = "";

        if (components.Count > 1)
        {
            var finalComponent = components[components.Count - 1];
            components.RemoveAt(components.Count - 1);
            extra = $" and {tupleFormatter(finalComponent)}";
        }

        return $"{string.Join(", ", components.Select(tupleFormatter))}{extra}";
    }
}