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namespace HyperBooru.Util;
public static class Extensions {
public static readonly string[] MagnitudeOrders = new[] {
"K", "M", "G", "T", "P", "E", "Z", "Y", "R", "Q"
};
public static DateTime? TryParseDateTimeUtc(this string s) {
bool success = DateTime.TryParse(s, out var dateTime);
return success ? DateTime.SpecifyKind(dateTime, DateTimeKind.Utc) : null;
}
public static string ToBytesSI(this long x) {
var exp = (int) Math.Log10(x);
var suffix = MagnitudeOrders.ElementAtOrDefault(exp / 3 - 1);
if(suffix is null)
return x.ToString();
double n = x / Math.Pow(10, exp / 3 * 3);
return $"{Math.Round(n, 2 - (exp % 3))} {suffix}B";
}
public static string ToStringHumanReadable(this TimeSpan t) {
if(t.TotalMilliseconds < 1000)
return string.Format("{0:0}ms", t.TotalMilliseconds);
if(t.TotalSeconds < 60)
return string.Format("{0:0.00}s", t.TotalSeconds);
if(t.TotalMinutes < 60)
return string.Format("{0:0}m{0:0}s", t.TotalMinutes, t.Seconds);
if(t.TotalHours < 24)
return string.Format("{0:0}h{0:0}m", t.TotalHours, t.Minutes);
return string.Format("{0:0.00}d", t.TotalDays);
}
}
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