will
67037469fc
resolveDay() no longer hardcodes season: 'trinitytide'. Easter is computed via the Anonymous Gregorian algorithm (verified against 16 known reference dates spanning 1583-2100); Advent/Christmastide/ Epiphanytide follow the Christmas-anchored rules (including Advent's "Sunday nearest Nov 30"); Septuagesima through Trinitytide come from easter-offsets.yml, reshaped from single named anchor points into real ranges plus single-day overrides for Corpus Christi and Sacred Heart. occurring feasts (calendar/feasts.ts) are still a stub — the sanctoral calendar and Double-vs-not ranking are a separate, larger project.
35 lines
1.4 KiB
TypeScript
35 lines
1.4 KiB
TypeScript
import type { LiturgicalDay } from './types';
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import { weekdayOf } from './weekday';
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import { resolveSeason } from './temporal';
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/**
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* Resolves everything about a given day *except* hour content — weekday,
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* season, and any occurring feasts. Season is real (see
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* calendar/temporal.ts); occurring feasts are still a stub until
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* calendar/feasts.ts lands (the sanctoral calendar — which saint, if any,
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* is kept on a given day, and Double-vs-not ranking — is a separate,
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* larger project from temporal-cycle season resolution).
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*/
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export function resolveDay(isoDate: string): LiturgicalDay {
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return {
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date: isoDate,
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weekday: weekdayOf(isoDate),
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season: resolveSeason(isoDate),
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occurring: [],
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};
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}
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/**
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* The Sunday/feast-vs-ferial split that several hours' propers key off of
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* (Prime's capitulum and Preces, so far): a plain weekday with nothing else
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* going on gets the "ferial" form, Sunday or an occurring feast gets the
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* fuller "Sunday/feast" form. `occurring` is always [] until milestone 4, so
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* today this reduces to "is it Sunday" — but the feast-override branch is
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* real, not a stub, and will start firing the moment feasts do.
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*/
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export function isSundayOrFeast(day: LiturgicalDay): boolean {
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return day.weekday === 'sunday' || day.occurring.length > 0;
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}
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export type { LiturgicalDay, OccurringFeast, Season, Weekday, FeastRank } from './types';
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