namespace RadicadeServer.Utils
{
		public static class ModerationPolicy
	{
		public const string VoiceModerationBanMethod = "Voice Moderation";
		public const string AutomaticTimeoutBanMethod = "Automatic Timeout";
		public const string ModeratorReportBanMethod = "Moderator Report";
		public const string TimeoutBanMethod = "Timeout";

				public const string AutomaticVoiceModerationBanText =
			"You have been banned as a result of our voice moderation system detecting language that violates our code of conduct.";

				public static readonly TimeSpan DefaultTimeoutDuration = TimeSpan.FromMinutes(60);

		public static readonly TimeSpan MinimumTimeoutDuration = TimeSpan.FromMinutes(60);

				public static readonly TimeSpan MaximumTimeoutDuration = TimeSpan.FromHours(24);

		public static bool IsTimeout(string? banMethod) =>
			Matches(banMethod, AutomaticTimeoutBanMethod)
			|| Matches(banMethod, ModeratorReportBanMethod)
			|| Matches(banMethod, TimeoutBanMethod);

		public static bool IsVoiceModeration(string? banMethod) => Matches(banMethod, VoiceModerationBanMethod);

				public static bool IssuesAppealCode(string? banMethod) => !IsTimeout(banMethod);

				public static bool RefusesAppeal(string? banMethod) => IsVoiceModeration(banMethod);

		public static TimeSpan ClampTimeout(TimeSpan duration)
		{
			if (duration < MinimumTimeoutDuration) return MinimumTimeoutDuration;
			if (duration > MaximumTimeoutDuration) return MaximumTimeoutDuration;
			return duration;
		}

				public static DateTime TimeoutExpiry(DateTime startedAtUtc, TimeSpan? duration = null) =>
			startedAtUtc + ClampTimeout(duration ?? DefaultTimeoutDuration);

				public static DateTime ExtendedTimeoutExpiry(DateTime startedAtUtc, DateTime currentExpiryUtc, TimeSpan? duration = null)
		{
			var capped = startedAtUtc + MaximumTimeoutDuration;
			var proposed = TimeoutExpiry(startedAtUtc, duration);
			var expiry = proposed > currentExpiryUtc ? proposed : currentExpiryUtc;
			return expiry > capped ? capped : expiry;
		}

		private static bool Matches(string? banMethod, string expected) =>
			string.Equals(banMethod?.Trim(), expected, StringComparison.OrdinalIgnoreCase);
	}
}