7902f4e6ac
Move the per-entry {#each} key logic into a shared entryKey.ts so the
undated bucket in TimelineView can reuse it. No behavior change.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
24 lines
875 B
TypeScript
24 lines
875 B
TypeScript
import type { components } from '$lib/generated/api';
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type TimelineEntryDTO = components['schemas']['TimelineEntryDTO'];
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/**
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* Stable `{#each}` key for a timeline entry. Prefers the entry's own identity
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* (`eventId` for curated events, `documentId` for letters); derived life-events
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* carry neither, so they key on `derivedType` + their linked person ids — which
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* keeps two derived births in the same year distinct. The `kind` prefix keeps an
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* event and a letter that happen to share an id from colliding.
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*
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* Used by both `YearBand` (per-band rows) and `TimelineView` (the undated
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* bucket), where entries can be events without a `documentId`.
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*/
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export function entryKey(entry: TimelineEntryDTO): string {
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return (
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entry.kind +
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':' +
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(entry.eventId ??
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entry.documentId ??
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`${entry.derivedType}:${(entry.linkedPersonIds ?? []).join('-')}`)
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);
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}
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