28 lines
980 B
C#
28 lines
980 B
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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namespace Bd2CashShop;
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internal static class CommercePayments
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{
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private static readonly HashSet<long> Applied = [];
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internal static string Receipt(long payment, CommerceProduct quote) =>
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"bd2-local-commerce-v1:" + payment.ToString(CultureInfo.InvariantCulture) + ":" +
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quote.ItemType.ToString(CultureInfo.InvariantCulture) + ":" + quote.Amount.ToString(CultureInfo.InvariantCulture);
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internal static Action AcceptOnce(long payment, Func<bool> isCurrentSession, Action debit, Action continuation)
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{
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return delegate
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{
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// The transport invokes this callback only on a successful response.
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// A replay must not charge the displayed client balance twice.
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if (isCurrentSession() && Applied.Add(payment)) debit();
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continuation?.Invoke();
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};
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}
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internal static void Clear() => Applied.Clear();
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}
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