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using System;
using System.Globalization;
using System.Threading.Tasks;
namespace Discord.Commands
{
internal class TimeSpanTypeReader : TypeReader
{
private static readonly string[] Formats = {
"%d'd'%h'h'%m'm'%s's'", //4d3h2m1s
"%d'd'%h'h'%m'm'", //4d3h2m
"%d'd'%h'h'%s's'", //4d3h 1s
"%d'd'%h'h'", //4d3h
"%d'd'%m'm'%s's'", //4d 2m1s
"%d'd'%m'm'", //4d 2m
"%d'd'%s's'", //4d 1s
"%d'd'", //4d
"%h'h'%m'm'%s's'", // 3h2m1s
"%h'h'%m'm'", // 3h2m
"%h'h'%s's'", // 3h 1s
"%h'h'", // 3h
"%m'm'%s's'", // 2m1s
"%m'm'", // 2m
"%s's'", // 1s
};
/// <inheritdoc />
public override Task<TypeReaderResult> ReadAsync(ICommandContext context, string input, IServiceProvider services)
{
return (TimeSpan.TryParseExact(input.ToLowerInvariant(), Formats, CultureInfo.InvariantCulture, out var timeSpan))
? Task.FromResult(TypeReaderResult.FromSuccess(timeSpan))
: Task.FromResult(TypeReaderResult.FromError(CommandError.ParseFailed, "Failed to parse TimeSpan"));
}
}
}