Investidor-V2/tests/frontend/iva-fx-selection.test.mjs

import test from 'node:test';
import assert from 'node:assert/strict';
import fs from 'node:fs';
import {
    emptyFxSelection,
    selectFx,
    fxTempoSource,
} from '../../resources/js/lib/iva-fx-selection.ts';
import {
    newCurrencyEvent,
    evaluateCurrencyEvent,
    recordCurrencyEvents,
    saveCurrencyEventBook,
    currencyEventBook,
    currencyEventCurrent,
} from '../../resources/js/lib/iva-currency-events.ts';
const selection = () => ({
    ...emptyFxSelection(),
    nature: 'commercial',
    submissionDate: '2026-10-23',
    bulletinDate: '2026-10-23',
    bulletinRef: 'SYNTHETIC QA boletimBM de referência,23/10/2026',
    source: 'https://www.bancomoc.mz/pt/areas-de-actuacao/mercados/mercado-cambial/',
    sourceCurrency: 'USD',
    direction: 'mzn_per_unit',
    bulletinPerspective: 'SYNTHETIC QA bancos perante público',
    relation: 'same',
    buy: '63.27',
    sell: '64.54',
    mean: '63.91',
});
for (const [nature, relation, column, rate] of [
    ['purchase', 'same', 'buy', '63.27'],
    ['sale', 'same', 'sell', '64.54'],
    ['purchase', 'opposite', 'sell', '64.54'],
    ['sale', 'opposite', 'buy', '63.27'],
    ['commercial', '', 'mean', '63.91'],
])
    void test(`P104 ${nature}/${relation || 'médiaBM'} escolhe ${column} sem inverter cliente`, () => {
        const result = selectFx({ ...selection(), nature, relation });
        assert.equal(result.column, column);
        assert.equal(result.rate, rate);
        assert.equal(result.date, '2026-10-23');
    });
void test('P104 falta de boletim/data/perspectiva não autoriza taxa actual,média própria ou coluna oposta presumida', () => {
    for (const patch of [
        { bulletinDate: '2026-10-22' },
        { mean: '' },
        { source: 'https://example.com/cambio' },
        { submissionDate: '2026-02-30' },
        { nature: '' },
        { nature: 'purchase', relation: '' },
        { nature: 'sale', bulletinPerspective: '' },
    ])
        assert.throws(() => selectFx({ ...selection(), ...patch }));
    assert.equal(
        selectFx({
            ...selection(),
            source: 'SYNTHETIC QA exemplar oficial arquivado',
            issuer: 'Banco de Moçambique',
        }).column,
        'mean',
    );
    const exception = {
        ...selection(),
        mode: 'exception',
        exceptionRef: 'SYNTHETIC QA disposição fiscal específica',
        exceptionScope: 'SYNTHETIC QA apenas operaçãoA',
        exceptionDate: '2026-10-20',
        exceptionRate: '62.12345678',
    };
    assert.equal(selectFx(exception).rate, '62.12345678');
    assert.equal(selectFx(exception).date, '2026-10-20');
    assert.throws(() => selectFx({ ...exception, exceptionRef: '' }));
});
const frozen = JSON.parse(
        fs.readFileSync(
            'tests/frontend/fixtures/iva-offer-workflow.json',
            'utf8',
        ),
    ),
    prior = JSON.parse(frozen.modelo_a_snapshot),
    draft = {
        ...frozen,
        context_opportunity: 'opportunity:365',
        project_title: 'SYNTHETIC QA — P104 operacional / Manica',
    };
function row() {
    const s = selection(),
        applied = selectFx(s);
    return {
        ...newCurrencyEvent('commercial', 'MZN'),
        treatment: 'foreign_scenario',
        description: 'SYNTHETIC QA operação comercial',
        period: '2026-10',
        origin: 'effective',
        operationRef: 'SYNTHETIC QA operação já declarada',
        documentRef: 'SYNTHETIC QA factura',
        documentDate: '2026-10-23',
        scope: 'SYNTHETIC QA operaçãoA',
        evidence: 'SYNTHETIC QA factos',
        factsConfirmed: 'yes',
        amount: '100.25',
        sourceCurrency: 'USD',
        fxRate: applied.rate,
        fxDate: applied.date,
        fxSource: applied.source,
        fxRuleRef: fxTempoSource,
        fxDirection: s.direction,
        fxSelection: { ...s, applied },
    };
}
void test('P104 original/convertido,direcção e taxa guardados;semIVA,nova dedução ou alteração automática', () => {
    const r = row(),
        v = evaluateCurrencyEvent(r);
    assert.equal(v.status, 'determined');
    assert.equal(v.scenarioAmount, '6406.9775');
    assert.equal(v.baseAmount, null);
    assert.equal(v.vat, null);
    const reverse = {
        ...r,
        fxDirection: 'units_per_mzn',
        fxSelection: { ...r.fxSelection, direction: 'units_per_mzn' },
    };
    const applied = selectFx(reverse.fxSelection);
    reverse.fxSelection.applied = applied;
    reverse.fxSource = applied.source;
    assert.equal(evaluateCurrencyEvent(reverse).scenarioAmount, '1.568612');
    assert.equal(
        evaluateCurrencyEvent({ ...r, fxRate: '999' }).status,
        'indeterminate',
    );
    assert.equal(
        evaluateCurrencyEvent({
            ...r,
            fxSelection: { ...r.fxSelection, submissionDate: '2026-10-24' },
        }).status,
        'indeterminate',
    );
});
void test('P104 versões antigas permanecem condicionadas e127fechos/P058/ofertas permanecem iguais', () => {
    const r = row(),
        legacy = { ...r };
    delete legacy.fxSelection;
    assert.equal(evaluateCurrencyEvent(legacy).status, 'conditional');
    let b = recordCurrencyEvents(draft, { rows: [r] });
    const saved = structuredClone(b.result);
    const changed = { ...b, rows: [{ ...r, amount: '200' }] };
    assert.equal(currencyEventCurrent(draft, changed), false);
    assert.deepEqual(b.result, saved);
    b = recordCurrencyEvents(draft, changed);
    assert.deepEqual(b.history[0], saved);
    draft.modelo_a_snapshot = saveCurrencyEventBook(draft, b);
    assert.deepEqual(currencyEventBook(draft), b);
    const next = JSON.parse(draft.modelo_a_snapshot);
    assert.deepEqual(
        Object.fromEntries(
            Object.entries(prior).filter(([k]) => k !== 'currencyEvents'),
        ),
        Object.fromEntries(
            Object.entries(next).filter(([k]) => k !== 'currencyEvents'),
        ),
    );
    for (const [k, v] of Object.entries(prior.currencyEvents ?? {}))
        assert.deepEqual(next.currencyEvents[k], v);
    if (process.env.IVA_FX_SELECTION_FIXTURE)
        fs.writeFileSync(
            'tests/frontend/fixtures/iva-fx-selection.json',
            JSON.stringify(draft),
        );
});