vu/tests/hours/vespers.test.ts

import { describe, expect, it } from 'vitest';
import { resolveOrdo } from '../../src/hours';

// Every id with an authored Vespers office override (2026-08 sweep) —
// same ids, same clean per-saint dates already established for each
// one's Lauds office-bundle override — see hours/vespers.ts's
// vespersCapitulumForOverride. One live `command=prayVespera` query each,
// Monastic Tridentinum 1617 except christ-the-king (Monastic Divino
// 1930, same as its Lauds counterpart).
const VESPERS_OFFICE_OVERRIDE_DATES: Record<string, string> = {
  'all-saints': '2026-11-01',
  'apparition-of-st-michael': '2026-05-08',
  assumption: '2026-08-15',
  'chair-of-st-peter-at-antioch': '2029-02-22',
  'chair-of-st-peter-at-rome': '2029-01-18',
  'christ-the-king': '2026-10-25',
  'conversion-of-st-paul': '2026-01-25',
  'holy-innocents': '2029-12-28',
  'immaculate-conception': '2026-12-08',
  'nativity-bvm': '2026-09-08',
  'nativity-of-st-john-the-baptist': '2026-06-24',
  'ss-peter-and-paul': '2026-06-29',
  'ss-philip-and-james': '2026-05-01',
  'ss-simon-and-jude': '2025-10-28',
  'st-andrew': '2026-11-30',
  'st-barnabas': '2035-06-11',
  'st-bartholomew': '2026-08-24',
  'st-james-the-greater': '2028-07-25',
  'st-john-apostle': '2029-12-27',
  'st-john-before-the-latin-gate': '2029-05-06',
  'st-lawrence': '2026-08-10',
  'st-luke': '2025-10-18',
  'st-mark': '2026-04-25',
  'st-martin-of-tours': '2026-11-11',
  'st-matthew': '2026-09-21',
  'st-matthias': '2029-02-24',
  'st-peter-ad-vincula': '2026-08-01',
  'st-scholastica': '2026-02-10',
  'st-stephen-protomartyr': '2029-12-26',
  'st-thomas-apostle': '2026-12-21',
};

describe('resolveOrdo("vespers", ...) office-override sweep', () => {
  it.each(Object.entries(VESPERS_OFFICE_OVERRIDE_DATES))(
    "resolves %s's own chapter/responsory/hymn/versicle bundle through the real mechanism, not just checking the YAML files exist",
    (id, date) => {
      const ordo = resolveOrdo('vespers', date);
      const chapter = ordo.parts.find((p) => p.kind === 'chapter');
      const responsory = ordo.parts.find((p) => p.kind === 'responsory');
      const hymn = ordo.parts.find((p) => p.kind === 'hymn');
      const versicle = ordo.parts.find((p) => p.kind === 'versicle');
      for (const part of [chapter, responsory, hymn, versicle]) {
        expect(part, `${id}: part missing from resolved ordo`).toBeDefined();
        const status = part && 'text' in part ? part.text.status : undefined;
        expect(status?.la, `${id}: Latin unexpectedly missing`).not.toBe('missing');
        expect(status?.en, `${id}: English unexpectedly missing`).not.toBe('missing');
      }
    },
  );
});

describe('resolveOrdo("vespers", ...)', () => {
  it('is implemented and resolves Sunday psalmody in order', () => {
    // 2026-08-16 is a Sunday, in ordinary time — no First Vespers claim
    // from the following Monday (a plain feria), so this stays Sunday's
    // own Second Vespers.
    const ordo = resolveOrdo('vespers', '2026-08-16');
    expect(ordo.notImplemented).toBeUndefined();
    expect(ordo.hourId).toBe('vespers');

    const psalmNumbers = ordo.parts
      .filter((p) => p.kind === 'psalm')
      .map((p) => (p.kind === 'psalm' ? p.psalmNumber : undefined));
    expect(psalmNumbers).toEqual([109, 110, 111, 112]);
  });

  it('joins Ps 115 and 116 under one shared antiphon on Monday', () => {
    // 2026-08-17 is a Monday, in ordinary time.
    const ordo = resolveOrdo('vespers', '2026-08-17');
    const psalmParts = ordo.parts.filter((p) => p.kind === 'psalm');
    const numbers = psalmParts.map((p) => (p.kind === 'psalm' ? p.psalmNumber : undefined));
    expect(numbers).toEqual([113, 114, 115, 116, 128]);

    // Ps 116 (the second half of the joined pair) carries no antiphon of
    // its own — only Ps 115 (the group's first entry) does.
    const ps115 = psalmParts[2];
    const ps116 = psalmParts[3];
    expect(ps115?.kind === 'psalm' ? ps115.antiphon : undefined).toBeDefined();
    expect(ps116?.kind === 'psalm' ? ps116.antiphon : undefined).toBeUndefined();
  });

  it('splits Ps 138 into two verse-ranges under one shared antiphon on Thursday', () => {
    // 2026-08-20 is a Thursday, in ordinary time.
    const ordo = resolveOrdo('vespers', '2026-08-20');
    const psalmParts = ordo.parts.filter((p) => p.kind === 'psalm');
    const numbers = psalmParts.map((p) => (p.kind === 'psalm' ? p.psalmNumber : undefined));
    expect(numbers).toEqual([138, 138, 139, 140]);

    const [firstHalf, secondHalf] = psalmParts;
    expect(firstHalf?.kind === 'psalm' ? firstHalf.verses.every((v) => v.n >= 1 && v.n <= 10) : false).toBe(true);
    expect(secondHalf?.kind === 'psalm' ? secondHalf.verses.every((v) => v.n >= 11 && v.n <= 24) : false).toBe(true);
    expect(secondHalf?.kind === 'psalm' ? secondHalf.antiphon : undefined).toBeUndefined();
  });

  it("uses the Assumption's own per-feast office override on her own Saturday, not the plain Saturday weekday default", () => {
    // 2026-08-15 is a Saturday and the Assumption (Duplex I. classis) —
    // well above keepsOwnSecondVespers's threshold, so it keeps its own
    // Vespers (weekday stays 'saturday') rather than ceding to tomorrow —
    // and well above getOfficeOverrideId's duplex-majus+ threshold too,
    // so her own authored chapter/responsory/hymn/versicle bundle
    // (vespers-{part}-assumption.yml, live-verified 2026-08) wins over the
    // plain Saturday default, same chapter text as her already-authored
    // lauds-capitulum-assumption.yml (see hours/vespers.ts's
    // vespersCapitulumForOverride).
    const ordo = resolveOrdo('vespers', '2026-08-15');
    const chapter = ordo.parts.find((p) => p.kind === 'chapter');
    expect(chapter?.kind === 'chapter' ? chapter.text.citation?.en : undefined).toBe('Sir 24:11-12');

    const hymn = ordo.parts.find((p) => p.kind === 'hymn');
    expect(hymn?.kind === 'hymn' ? hymn.text.text.la : undefined).not.toContain('O lux beáta Trínitas');

    const versicle = ordo.parts.find((p) => p.kind === 'versicle' && p.text.text.la?.includes('Exaltáta est sancta Dei Génitrix'));
    expect(versicle).toBeDefined();
  });

  it('falls back to the classic weekday-default Magnificat antiphon on a bare ferial', () => {
    // 2026-06-16 is a Tuesday, plain ordinary trinitytide, no saint, no
    // active octave (same date already used by calendar/vespers.test.ts's
    // "does not anticipate between two plain ferias").
    const ordo = resolveOrdo('vespers', '2026-06-16');
    const magnificatIndex = ordo.parts.findIndex((p) => p.kind === 'canticle' && p.canticleId === 'magnificat');
    expect(magnificatIndex).toBeGreaterThanOrEqual(0);
    const magnificat = ordo.parts[magnificatIndex];
    expect(magnificat?.kind === 'canticle' ? magnificat.text.text.la : undefined).toContain('Magníficat ✠ ánima mea');
    // The closing full-antiphon repeat is the very next part.
    const closingAntiphon = ordo.parts[magnificatIndex + 1];
    expect(closingAntiphon?.kind === 'antiphon' ? closingAntiphon.text.text.la : undefined).toContain('Exsúltet');
  });

  it('folds the cross-day Vespers commemoration into day-collects (St. James keeps Vespers, St. Anne commemorated)', () => {
    // St. Christopher (same-day collision, commemorated under James
    // already at the calendar level) and St. Anne (the cross-day Vespers
    // commemoration from calendar/vespers.ts) are both sanctoral, so both
    // render as 'preces' parts (see resolve-common.ts's
    // sanctoralCommemorationPart) — only a *temporal* commemoration
    // renders as 'prayer'.
    const ordo = resolveOrdo('vespers', '2026-07-25');
    const collectParts = ordo.parts.filter((p) => p.kind === 'prayer' || p.kind === 'preces');
    // James's own collect ('prayer') + Christopher's + Anne's commemorations ('preces').
    expect(collectParts.length).toBeGreaterThanOrEqual(3);
    const anne = ordo.parts.find((p) => p.kind === 'preces' && p.label?.includes('Anne'));
    expect(anne).toBeDefined();
  });

  it("renders Advent's seasonal chapter/hymn/versicle instead of the plain weekday default", () => {
    // 2025-12-02 is a Tuesday in Advent (St. Bibiana, Simplex, merely
    // commemorated — the day's own winner stays temporal either way).
    const ordo = resolveOrdo('vespers', '2025-12-02');
    const chapter = ordo.parts.find((p) => p.kind === 'chapter');
    expect(chapter?.kind === 'chapter' ? chapter.text.citation?.en : undefined).toBe('Gen 49:10');
    const hymn = ordo.parts.find((p) => p.kind === 'hymn');
    expect(hymn?.kind === 'hymn' ? hymn.text.text.la : undefined).toContain('Cónditor alme síderum');
    const versicle = ordo.parts.find((p) => p.kind === 'versicle' && p.text.text.la?.includes('Roráte'));
    expect(versicle).toBeDefined();
  });

  it("renders Lent's seasonal office", () => {
    // 2026-03-03 is a Tuesday in Lent, before Passiontide.
    const ordo = resolveOrdo('vespers', '2026-03-03');
    const chapter = ordo.parts.find((p) => p.kind === 'chapter');
    expect(chapter?.kind === 'chapter' ? chapter.text.citation?.en : undefined).toBe('Joel 2:17');
    const hymn = ordo.parts.find((p) => p.kind === 'hymn');
    expect(hymn?.kind === 'hymn' ? hymn.text.text.la : undefined).toContain('Audi, benígne Cónditor');
  });

  it("renders Passiontide's seasonal office, with the Gloria Patri omitted from the responsory", () => {
    // 2026-03-25 is a Wednesday in Passiontide (Passion Sunday 2026-03-22
    // through Holy Saturday 2026-04-04).
    const ordo = resolveOrdo('vespers', '2026-03-25');
    const chapter = ordo.parts.find((p) => p.kind === 'chapter');
    expect(chapter?.kind === 'chapter' ? chapter.text.citation?.en : undefined).toBe('Jer 11:20');
    const responsory = ordo.parts.find((p) => p.kind === 'responsory');
    expect(responsory?.kind === 'responsory' ? responsory.text.text.la : undefined).not.toContain('Glória Patri');
    const hymn = ordo.parts.find((p) => p.kind === 'hymn');
    expect(hymn?.kind === 'hymn' ? hymn.text.text.la : undefined).toContain('Vexílla Regis pródeunt');
  });

  it('includes the Kyrie + Our Father lead-in right after the Magnificat, before the day collect (either form)', () => {
    // 2026-06-16 is a Tuesday, plain ordinary trinitytide -- same bare
    // ferial already used above for the Magnificat weekday-default test.
    const ordo = resolveOrdo('vespers', '2026-06-16');
    const litanyIndex = ordo.parts.findIndex((p) => p.kind === 'preces' && p.text.text.la?.includes('Kýrie, eléison'));
    const magnificatIndex = ordo.parts.findIndex((p) => p.kind === 'canticle' && p.canticleId === 'magnificat');
    const collectIndex = ordo.parts.findIndex((p) => p.kind === 'prayer');
    expect(litanyIndex).toBeGreaterThan(magnificatIndex);
    expect(collectIndex).toBeGreaterThan(litanyIndex);
  });

  it('uses the fuller Tridentine 1906/1910 ferial Preces (with Psalm 50) on a plain ferial day, not the short Sunday/feast litany', () => {
    const ordo = resolveOrdo('vespers', '2026-06-16');
    const preces = ordo.parts.find((p) => p.kind === 'preces' && p.text.text.la?.includes('Kýrie, eléison'));
    expect(preces?.kind === 'preces' ? preces.text.text.la : undefined).toContain('Miserére mei, Deus');
    expect(preces?.kind === 'preces' ? preces.text.text.en : undefined).toContain('Have mercy on me, O God');
  });

  it("uses the short Sunday/feast litany, without Psalm 50, on a Sunday and on a real saint's own winning day", () => {
    // 2026-08-16 is a plain temporal Sunday -- no First Vespers claim from
    // the following Monday (a plain feria), so this stays Sunday's own.
    const sunday = resolveOrdo('vespers', '2026-08-16');
    const sundayPreces = sunday.parts.find((p) => p.kind === 'preces' && p.text.text.la?.includes('Kýrie, eléison'));
    expect(sundayPreces?.kind === 'preces' ? sundayPreces.text.text.la : undefined).not.toContain('Psalmus 50');

    // 2026-08-15 is the Assumption (Duplex I. classis), a real saint's own
    // Saturday -- same date already used above for the weekday-office test.
    const saintsDay = resolveOrdo('vespers', '2026-08-15');
    const saintsDayPreces = saintsDay.parts.find((p) => p.kind === 'preces' && p.text.text.la?.includes('Kýrie, eléison'));
    expect(saintsDayPreces?.kind === 'preces' ? saintsDayPreces.text.text.la : undefined).not.toContain('Psalmus 50');
  });

  it("renders Paschaltide's seasonal office, sharing its chapter with Lauds", () => {
    // 2026-04-20 is in eastertide (Easter 2026-04-05).
    const ordo = resolveOrdo('vespers', '2026-04-20');
    const chapter = ordo.parts.find((p) => p.kind === 'chapter');
    expect(chapter?.kind === 'chapter' ? chapter.text.citation?.en : undefined).toBe('Rom 6:9-10');
    const hymn = ordo.parts.find((p) => p.kind === 'hymn');
    expect(hymn?.kind === 'hymn' ? hymn.text.text.la : undefined).toContain('Ad cenam Agni próvidi');
    const versicle = ordo.parts.find((p) => p.kind === 'versicle' && p.text.text.la?.includes('Mane nobíscum'));
    expect(versicle).toBeDefined();
  });
});