27 lines
1.0 KiB
C#
27 lines
1.0 KiB
C#
namespace After;
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/// <summary>
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/// The result of discounting an <see cref="Order"/>: a separate domain type,
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/// not a modified order. The discount is derived data — computed on demand,
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/// correlated to its order by <see cref="OrderId"/>. What a caller does with
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/// it (and what of it ever reaches <see cref="OrderDto"/> or
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/// <see cref="OrderData"/>) is deliberately left to the caller.
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/// </summary>
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public sealed record DiscountedOrder
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{
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/// <summary>Primary key of the discounted <see cref="Order"/>.</summary>
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public Guid OrderId { get; init; }
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/// <summary>The order's total in cents, as read from it (the untouched input).</summary>
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public int TotalInCents { get; init; }
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/// <summary>
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/// The percentage actually applied, as an integer percent. 0 when the
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/// order did not pass the discount barrier.
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/// </summary>
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public int DiscountPercentage { get; init; }
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/// <summary>The total after the discount, in cents.</summary>
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public int DiscountedTotalInCents { get; init; }
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}
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