26 lines
1.1 KiB
TypeScript
26 lines
1.1 KiB
TypeScript
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/**
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* Pure helpers for the bracket-scoring route action, extracted so the
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* knockout-detection logic can be unit-tested without the full action harness.
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*/
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/**
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* From a set of matches being scored this action, return the season_participant
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* ids knocked out for the FIRST time. A loser counts only when its match was NOT
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* already complete — a re-score/correction of a finished match must not
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* re-announce the exit (mirrors populateBracketFromDraw's first-completion rule in
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* the live-sync path). Entries with an unknown loser (`null`) are skipped.
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*
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* The ids are season_participant ids of the primary window (playoff_matches are
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* keyed by season_participant); the fan-out translates them to each mirror
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* window's own season_participant id before announcing the "Knocked Out" section.
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*/
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export function newlyDecidedLosers(
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entries: Array<{ wasComplete: boolean; loserId: string | null }>
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): string[] {
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return entries
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.filter((e): e is { wasComplete: boolean; loserId: string } =>
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!e.wasComplete && e.loserId !== null
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)
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.map((e) => e.loserId);
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}
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