// Lot U3 — « Info ouverture doc de réf. » (Yvv, 2026-11-03: « un petit chapitre qui explicite les
// réglages initiaux de l'auteur, notamment Quorum et Inertie »): what the chapter says is read in
// the data of the document, never written in. The level a module opened at is the one before any
// change voted (a change of the seed's settings, an amendment, is the author's); a Proposition
// d'amorce stays one once it has entered into force (`seedFeatured`).
import { describe, expect, it } from 'vitest';
import { isAmorce, openedAt, openingLevels, quorumsOf } from '../../src/lib/opening';
import type { DocView, Inertia, InertiaChange, Proposal, Unit } from '../../src/lib/types';

function version(over: Partial<Proposal> = {}): Proposal {
  return {
    id: 'p',
    unitId: 'u',
    kind: 'text',
    inertiaTarget: null,
    title: 'Un article',
    body: '',
    status: 'open',
    origin: 'seed',
    label: null,
    author: null,
    mine: false,
    revision: 1,
    createdAt: '2026-11-03T00:00:00Z',
    updatedAt: '2026-11-03T00:00:00Z',
    submittedAt: null,
    enteredAt: null,
    confirmedAt: null,
    seedMinimal: false,
    seedProposal: false,
    seedFeatured: false,
    tally: { for: 0, against: 0 },
    tallyPending: { for: 0, against: 0 },
    tallySimulated: { for: 0, against: 0 },
    evaluation: null,
    votedAtInertia: 3,
    blocked: false,
    votable: true,
    objections: 0,
    myVote: null,
    myVoteState: null,
    myVoteStale: false,
    myVoteChain: false,
    myBallot: null,
    translations: {},
    ...over,
  };
}

let n = 0;
function unit(inertia: Inertia, over: Partial<Unit> = {}, versions: Partial<Proposal>[] = [{}]): Unit {
  n += 1;
  return {
    id: `u${n}`,
    code: `X${n}`,
    section: 'technique',
    position: n,
    inertia,
    inertiaChanges: [],
    inForce: null,
    proposals: versions.map((v) => version({ id: `p${n}`, ...v })),
    ...over,
  };
}

const change = (from: Inertia, to: Inertia, cause: InertiaChange['cause']): InertiaChange => ({ from, to, cause, at: '2026-11-03T00:00:00Z' });

describe('the level a module opened at', () => {
  it('is its level when nothing changed it', () => {
    expect(openedAt(unit(3))).toBe(3);
  });
  it('is the author’s: a change of the seed’s settings (an amendment) is part of the opening', () => {
    expect(openedAt(unit(2, { inertiaChanges: [change(3, 2, 'amendment')] }))).toBe(2);
  });
  it('is the one before the first change voted, whatever came after', () => {
    expect(openedAt(unit(4, { inertiaChanges: [change(2, 4, 'vote')] }))).toBe(2);
    expect(openedAt(unit(5, { inertiaChanges: [change(3, 2, 'amendment'), change(2, 4, 'vote'), change(4, 5, 'vote')] }))).toBe(2);
  });
});

describe('a Proposition d’amorce', () => {
  it('is the article the seed put forward, open or in force since', () => {
    expect(isAmorce(unit(2, {}, [{ seedProposal: true, seedFeatured: true }]))).toBe(true);
    expect(isAmorce(unit(2, { inForce: version({ status: 'in_force', seedFeatured: true, enteredAt: '2026-11-03T00:00:00Z' }) }, []))).toBe(true);
    expect(isAmorce(unit(3))).toBe(false);
  });
  it('a server that does not say it yet makes no article an amorce', () => {
    const old = version();
    delete (old as Partial<Proposal>).seedFeatured;
    expect(isAmorce(unit(3, { proposals: [old] }))).toBe(false);
  });
});

describe('the levels at the opening, by kind of module', () => {
  function view(units: Unit[], title: Unit | null, orders: Unit[]): Pick<DocView, 'units' | 'modules'> {
    return { units, modules: { title, orders } };
  }
  it('the amorces, the title, the order of each section, the other articles of the seed', () => {
    const v = view(
      [
        unit(2, {}, [{ seedProposal: true, seedFeatured: true }]),
        unit(3, { inertiaChanges: [change(2, 3, 'vote')], inForce: version({ status: 'in_force', seedFeatured: true }) }, []),
        unit(3),
        unit(4, { inertiaChanges: [change(3, 4, 'vote')] }),
        // A member's article is not a setting of the author.
        unit(5, {}, [{ origin: 'member' }]),
      ],
      unit(4, { kind: 'title' }),
      [unit(2, { kind: 'order', section: 'introduction' }), unit(3, { kind: 'order', section: 'technique', inertiaChanges: [change(2, 3, 'vote')] })],
    );
    expect(openingLevels(v)).toEqual({ amorce: [2], title: [4], orders: [2], others: [3] });
  });
  it('several levels in one kind are all said, lowest first; a kind that is absent says none', () => {
    const v = view([unit(4), unit(3), unit(4)], null, []);
    expect(openingLevels(v)).toEqual({ amorce: [], title: [], orders: [], others: [3, 4] });
  });
});

describe('the quorum of each level', () => {
  it('said once when every level has the same', () => {
    expect(quorumsOf([1, 1, 1, 1, 1])).toEqual({ same: 1, list: [1, 1, 1, 1, 1] });
  });
  it('listed from level 1 to level 5 otherwise', () => {
    expect(quorumsOf([12, 12, 50, 50, 50])).toEqual({ same: null, list: [12, 12, 50, 50, 50] });
  });
  it('nothing when the server does not say them', () => {
    expect(quorumsOf(undefined)).toBeNull();
    expect(quorumsOf([])).toBeNull();
  });
});