71 lines
2.2 KiB
C#
71 lines
2.2 KiB
C#
using System.Collections.Immutable;
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using System.Linq;
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using System.Text.Json.Serialization;
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namespace StellaOps.Concelier.Models;
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/// <summary>
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/// Describes the origin of a canonical field and how/when it was captured.
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/// </summary>
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public sealed record AdvisoryProvenance
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{
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public static AdvisoryProvenance Empty { get; } = new("unknown", "unspecified", string.Empty, DateTimeOffset.UnixEpoch);
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[JsonConstructor]
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public AdvisoryProvenance(
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string source,
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string kind,
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string value,
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string? decisionReason,
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DateTimeOffset recordedAt,
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ImmutableArray<string> fieldMask)
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: this(source, kind, value, recordedAt, fieldMask.IsDefault ? null : fieldMask.AsEnumerable(), decisionReason)
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{
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}
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public AdvisoryProvenance(
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string source,
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string kind,
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string value,
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DateTimeOffset recordedAt,
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IEnumerable<string>? fieldMask = null,
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string? decisionReason = null)
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{
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Source = Validation.EnsureNotNullOrWhiteSpace(source, nameof(source));
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Kind = Validation.EnsureNotNullOrWhiteSpace(kind, nameof(kind));
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Value = Validation.TrimToNull(value);
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DecisionReason = Validation.TrimToNull(decisionReason);
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RecordedAt = recordedAt.ToUniversalTime();
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FieldMask = NormalizeFieldMask(fieldMask);
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}
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public string Source { get; }
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public string Kind { get; }
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public string? Value { get; }
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public string? DecisionReason { get; }
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public DateTimeOffset RecordedAt { get; }
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public ImmutableArray<string> FieldMask { get; }
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private static ImmutableArray<string> NormalizeFieldMask(IEnumerable<string>? fieldMask)
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{
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if (fieldMask is null)
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{
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return ImmutableArray<string>.Empty;
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}
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var buffer = fieldMask
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.Where(static value => !string.IsNullOrWhiteSpace(value))
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.Select(static value => value.Trim().ToLowerInvariant())
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.Distinct(StringComparer.Ordinal)
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.OrderBy(static value => value, StringComparer.Ordinal)
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.ToImmutableArray();
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return buffer.IsDefault ? ImmutableArray<string>.Empty : buffer;
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}
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}
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