kjh2064
c41e5063b7
Removed entire kbx-foundation-v36 directory as it's been replaced by the new KBX Foundation v4 patterns implemented in this session: - Registry-driven screen definitions - Density-aware UI adapter components - Feature module templates (ShadowRun, Models) Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
26 lines
1.3 KiB
C#
26 lines
1.3 KiB
C#
using Kbx.Shared.ExternalData.Generated;
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namespace Kbx.Shared.ExternalData;
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public static class KbxExternalDataFreshnessPolicy
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{
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public static KbxExternalDataState Evaluate(KbxExternalDataDatasetDefinition dataset, DateTimeOffset now, DateTimeOffset? freshUntil, DateTimeOffset? usableUntil)
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{
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if (freshUntil is null && dataset.FreshnessMode == "provider-defined") return KbxExternalDataState.Unavailable;
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if (freshUntil is not null && now <= freshUntil.Value) return KbxExternalDataState.Fresh;
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if (dataset.FreshnessMode == "strict") return KbxExternalDataState.Expired;
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if (usableUntil is not null && now <= usableUntil.Value) return KbxExternalDataState.Stale;
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return KbxExternalDataState.Expired;
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}
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public static (DateTimeOffset? FreshUntil, DateTimeOffset? UsableUntil) Window(KbxExternalDataDatasetDefinition dataset, DateTimeOffset receivedAt)
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{
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if (dataset.FreshForSeconds is null) return (null, null);
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var fresh = receivedAt.AddSeconds(dataset.FreshForSeconds.Value);
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var usable = dataset.FreshnessMode == "stale-while-revalidate" && dataset.MaxStaleSeconds is > 0
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? fresh.AddSeconds(dataset.MaxStaleSeconds.Value)
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: fresh;
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return (fresh, usable);
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}
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}
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