// « Combien il faut de oui pour passer, combien de non pour bloquer » (Yvv, 2026-11-02),
// told from what the server says (ADR 0013): yesNeeded, noNeeded, the quorum.
import { describe, expect, it } from 'vitest';
import { needOf } from '../../src/lib/labels';
import type { Evaluation, Proposal } from '../../src/lib/types';

function version(tally: { for: number; against: number }, e: Partial<Evaluation> | null): Proposal {
  const evaluation: Evaluation | null = e
    ? { cast: tally.for + tally.against, required: 0, reached: false, missing: 0, requiredRatio: 0, wellRated: false, ...e }
    : null;
  return { tally, evaluation } as unknown as Proposal;
}

describe('the yes to pass, the no to block', () => {
  it('before any vote: the yes asked of the quorum', () => {
    const need = needOf(version({ for: 0, against: 0 }, { quorum: 12, yesNeeded: 9, noNeeded: 0 }));
    expect(need?.long).toBe('9 oui sur 12 votants pour passer');
    expect(need?.short).toBe('9 oui sur 12');
    expect(need?.title).toBe('Quorum : 12 votants. En dessous, les votants qui manquent comptent comme « non ».');
  });
  it('one voter of quorum: singular', () => {
    expect(needOf(version({ for: 0, against: 0 }, { quorum: 1, yesNeeded: 1, noNeeded: 0 }))?.long).toBe('1 oui sur 1 votant pour passer');
  });
  it('9 for and 4 against at level 2, quorum 12: 11 yes pass, 4 no block', () => {
    const need = needOf(version({ for: 9, against: 4 }, { quorum: 12, yesNeeded: 11, noNeeded: 4 }));
    expect(need?.long).toBe('11 oui pour passer · 4 non pour bloquer');
    expect(need?.short).toBe('passe à 11 oui · bloquée à 4 non');
  });
  it('below the quorum, the voters missing hold it alone: no « non » to count', () => {
    const need = needOf(version({ for: 3, against: 0 }, { quorum: 12, yesNeeded: 9, noNeeded: 0 }));
    expect(need?.long).toBe('9 oui pour passer · le quorum la bloque');
    expect(need?.short).toBe('passe à 9 oui');
  });
  it('nothing said without the numbers of the server', () => {
    expect(needOf(version({ for: 0, against: 0 }, null))).toBeNull();
    expect(needOf(version({ for: 0, against: 0 }, { quorum: 12 }))).toBeNull();
  });
});