will
a68ab716b7
TemporalFeastRecord had no rank field at all, so Christmas/Pentecost/ Christ the King/Marian Saturday had nothing for the day label to show. Christmas, Pentecost, and Christ the King are Duplex I Class (the latter's own file comment already said so); Marian Saturday is a Simplex-strength votive commemoration. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
53 lines
1.9 KiB
TypeScript
53 lines
1.9 KiB
TypeScript
// The temporal-cycle sibling of calendar/feasts.ts's SaintRecord: a small
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// metadata record for a *temporal* id (Christmas, Pentecost, ...) that
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// needs to carry something beyond its collect text — so far, just whether
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// it has an octave (calendar/types.ts's OctaveConfig). Most temporal ids
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// don't need a record at all (they're just collect-text lookups via
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// propers/index.ts's getTemporalProper); this only exists for the ones
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// that do.
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import type { FeastClass, OctaveConfig } from './types';
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import { easterOffsetOf } from './temporal';
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export interface TemporalFeastRecord {
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id: string;
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name: string;
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octave?: OctaveConfig;
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rank?: FeastClass;
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}
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const temporalFeastModules = import.meta.glob<{ default: TemporalFeastRecord }>(
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'../data/calendar/temporal-feasts/*.yml',
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{ eager: true },
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);
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const temporalFeastsById = new Map<string, TemporalFeastRecord>();
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for (const mod of Object.values(temporalFeastModules)) {
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temporalFeastsById.set(mod.default.id, mod.default);
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}
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export function getTemporalFeastRecord(id: string): TemporalFeastRecord | undefined {
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return temporalFeastsById.get(id);
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}
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/** Fixed-calendar-date starts (MM-DD -> temporal feast id). Only Christmas
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* so far; Epiphany/Candlemas would join here if they ever needed an
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* octave modeled too. */
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const FIXED_DATE_STARTS: [string, string][] = [['12-25', 'christmas-day']];
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/** Easter-offset starts (offset -> temporal feast id). */
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const EASTER_OFFSET_STARTS: [number, string][] = [[49, 'pentecost-sunday']];
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/** Which temporal feast(s), if any, have their own (day-1) octave start on this date. */
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export function temporalFeastIdsStartingOn(isoDate: string): string[] {
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const monthDay = isoDate.slice(5);
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const ids: string[] = [];
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for (const [md, id] of FIXED_DATE_STARTS) {
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if (md === monthDay) ids.push(id);
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}
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const offset = easterOffsetOf(isoDate);
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for (const [off, id] of EASTER_OFFSET_STARTS) {
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if (off === offset) ids.push(id);
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}
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return ids;
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}
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