Joseph Doherty
21 lines
826 B
C#
21 lines
826 B
C#
using System.Globalization;
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namespace ScadaLink.CLI.Commands;
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/// <summary>
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/// Helpers for the <c>audit verify-chain</c> subcommand. v1 is a no-op: hash-chain
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/// tamper-evidence is deferred to v1.x (see Component-AuditLog.md). The command still
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/// validates its <c>--month</c> argument so the surface is stable for v1.x.
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/// </summary>
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public static class AuditVerifyChainHelpers
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{
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/// <summary>
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/// Returns true if <paramref name="month"/> is a well-formed <c>YYYY-MM</c> value
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/// with a real month (01-12). A malformed month (e.g. <c>2026-13</c>) is rejected.
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/// </summary>
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public static bool IsValidMonth(string? month)
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=> !string.IsNullOrWhiteSpace(month)
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&& DateTime.TryParseExact(month, "yyyy-MM", CultureInfo.InvariantCulture,
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DateTimeStyles.None, out _);
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}
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