Files
LeafWeb/Core/Utility/TimeSpanExtensions.cs
T

59 lines
2.2 KiB
C#

using System;
using System.Text.RegularExpressions;
namespace LeafWeb.Core.Utility
{
public static class TimeSpanExtensions
{
private const string Month = "month";
private const string MonthAbr = "mo.";
private const string Day = "day";
private const string DayAbr = "day";
private const string Hour = "hour";
private const string HourAbr = "hr.";
private const string Minute = "minute";
private const string MinuteAbr = "min.";
private const string Second = "second";
private const string SecondAbr = "sec.";
private static Regex PluralizeRegex = new Regex(@"^([^\.]*)(\.?)$", RegexOptions.Compiled);
public static string ToReadableString(this TimeSpan span)
{
Func<int, string> pluralize = i => i > 1 ? "s" : string.Empty;
// ReSharper disable once UseStringInterpolation
var formatted = string.Format("{0}{1}{2}{3}",
span.Duration().Days > 0 ? $"{span.Days:0} day{pluralize(span.Days)}, " : string.Empty,
span.Duration().Hours > 0 ? $"{span.Hours:0} hour{pluralize(span.Hours)}, " : string.Empty,
span.Duration().Minutes > 0 ? $"{span.Minutes:0} minute{pluralize(span.Minutes)}, " : string.Empty,
span.Duration().Seconds > 0 ? $"{span.Seconds:0} second{pluralize(span.Seconds)}" : string.Empty);
if (formatted.EndsWith(", ")) formatted = formatted.Substring(0, formatted.Length - 2);
if (string.IsNullOrEmpty(formatted)) formatted = "0 seconds";
return formatted;
}
public static string ToRoundedReadableString(this TimeSpan span, bool abbreviation = true)
{
Func<int, string, string> pluralize =
(i, s) => i > 1 ? PluralizeRegex.Replace(s, "$1s$2") : s;
Func<int, string, string> formatTime = (i, s) => $"{i:0} {pluralize(i, s)}";
if (span.Duration().Days > 90)
return formatTime(span.Days/30, abbreviation ? MonthAbr : Month);
if (span.Duration().Days > 0)
return formatTime(span.Days, abbreviation ? DayAbr : Day);
if (span.Duration().Hours > 0)
return formatTime(span.Hours, abbreviation ? HourAbr : Hour);
if (span.Duration().Minutes > 0)
return formatTime(span.Minutes, abbreviation ? MinuteAbr : Minute);
if (span.Duration().Seconds > 0)
return formatTime(span.Seconds, abbreviation ? SecondAbr : Second);
return "0 seconds";
}
}
}