using Deal.Telegram.Dialogs;
namespace Deal.Telegram.Dialogs;

public sealed class RandomBackfillPacer : IBackfillPacer
{
    async Task IBackfillPacer.WaitAsync(
        double minSeconds,
        double maxSeconds,
        CancellationToken cancellationToken)
    {
        if (maxSeconds < 0 || minSeconds < 0 || minSeconds > maxSeconds)
        {
            throw new ArgumentOutOfRangeException(nameof(maxSeconds), $"Некорректный диапазон паузы: [{minSeconds}, {maxSeconds}].");
        }

        if (maxSeconds == 0)
        {
            return;
        }

        double seconds = minSeconds == maxSeconds
            ? minSeconds
            : minSeconds + Random.Shared.NextDouble() * (maxSeconds - minSeconds);
        await Task.Delay(TimeSpan.FromSeconds(seconds), cancellationToken).ConfigureAwait(false);
    }
}