Investidor-V2/tests/frontend/iva-import-special-regimes.test.mjs

import test from 'node:test';
import assert from 'node:assert/strict';
import fs from 'node:fs';
import {
    newImportExemption,
    evaluateImportExemption,
    recordImportExemptions,
    saveImportExemptionBook,
    importExemptionBook,
    importExemptionCurrent,
    importExemptionRules,
    importSpecialRegimeSource,
} from '../../resources/js/lib/iva-import-exemptions.ts';
import { createProjectDossierReport } from '../../resources/js/lib/project-dossier-report.ts';
const frozen = JSON.parse(
    fs.readFileSync(
        new URL('./fixtures/iva-g6d-inputs.json', import.meta.url),
        'utf8',
    ),
);
const rules = importExemptionRules.filter((r) => r.branch === 'P080');
const row = (rule) => ({
    ...newImportExemption('g5c-' + rule.id, 'MZN'),
    treatment: rule.id,
    description: 'SYNTHETIC QA ' + rule.label,
    period: '2026-12',
    declaredValue: '5000',
    importer: 'SYNTHETIC QA importador',
    documentRef: 'SYNTHETIC QA G5C ' + rule.id,
    documentDate: '2026-11-14',
    evidence:
        'SYNTHETIC QA regime e documento aplicável, controlo e permanência; sem uso/consumo finais. Pressuposto expresso, não é documento real.',
    conditions: Object.fromEntries(
        rule.conditions.map(([key]) => [key, 'yes']),
    ),
});
const draft = () => ({
    ...structuredClone(frozen),
    context_opportunity: 'opportunity:334',
    project_title: 'SYNTHETIC QA — G5C / Importações em regimes especiais',
});

void test('P080 covers six enumerated regimes; each legal condition independently prevents an unfounded zero', () => {
    assert.equal(rules.length, 6);
    assert.match(importSpecialRegimeSource, /14\(1\)\(a\)/);
    for (const rule of rules) {
        const input = row(rule);
        assert.equal(evaluateImportExemption(input, 'MZN').importVat, '0.00');
        for (const [key] of rule.conditions)
            for (const value of ['', 'unknown', 'no']) {
                const result = evaluateImportExemption(
                    {
                        ...input,
                        conditions: { ...input.conditions, [key]: value },
                    },
                    'MZN',
                );
                assert.equal(
                    result.status,
                    value === 'no' ? 'not_applicable' : 'indeterminate',
                );
                assert.equal(result.importVat, null);
            }
        for (const patch of [
            { period: '2025-12' },
            { currency: 'USD' },
            { documentRef: '' },
            { documentDate: '2026-02-30' },
            { evidence: '' },
        ])
            assert.equal(
                evaluateImportExemption({ ...input, ...patch }, 'MZN')
                    .importVat,
                null,
            );
    }
});
void test('geography or regime selection alone cannot exempt; switching regimes preserves data but requires own confirmation', () => {
    const input = row(rules[0]);
    assert.equal(
        evaluateImportExemption({ ...input, conditions: {} }, 'MZN').status,
        'indeterminate',
    );
    const switched = { ...input, treatment: rules[1].id };
    assert.equal(
        evaluateImportExemption(switched, 'MZN').status,
        'indeterminate',
    );
    assert.equal(switched.documentRef, input.documentRef);
    assert.equal(switched.conditions.specialEconomicZone, 'yes');
    assert.equal(
        evaluateImportExemption(
            {
                ...switched,
                conditions: { ...switched.conditions, freeZone: 'yes' },
            },
            'MZN',
        ).status,
        'exempt',
    );
    for (const key of [
        'specialRegimePermanence',
        'specialNoFinalUseConsumption',
    ])
        assert.equal(
            evaluateImportExemption(
                { ...input, conditions: { ...input.conditions, [key]: 'no' } },
                'MZN',
            ).status,
            'not_applicable',
        );
});
void test('P080 save/recover/report archives negative/unknown history and preserves all25 prior books, source keys and field11', () => {
    const d = draft(),
        prior = JSON.parse(frozen.modelo_a_snapshot);
    let book = recordImportExemptions(d, {
        rows: rules.map((rule) => ({ ...row(rule), conditions: {} })),
    });
    book = recordImportExemptions(d, {
        ...book,
        rows: rules.map((rule) => ({
            ...row(rule),
            conditions: {
                ...row(rule).conditions,
                specialNoFinalUseConsumption: 'no',
            },
        })),
    });
    book = recordImportExemptions(d, { ...book, rows: rules.map(row) });
    assert.equal(book.history.length, 2);
    assert.equal(book.history[0].rows[0].status, 'indeterminate');
    assert.equal(book.history[1].rows[0].status, 'not_applicable');
    assert.ok(
        book.history.every((h) => h.rows.every((r) => r.importVat === null)),
    );
    d.modelo_a_snapshot = saveImportExemptionBook(d, book);
    assert.deepEqual(importExemptionBook(JSON.parse(JSON.stringify(d))), book);
    assert.ok(importExemptionCurrent(d, book));
    assert.ok(
        !importExemptionCurrent(
            { ...d, context_opportunity: 'opportunity:333' },
            book,
        ),
    );
    assert.match(book.result.sourceKey, /import-special-regimes\/1/);
    const next = JSON.parse(d.modelo_a_snapshot);
    assert.deepEqual(next.salesOperations, prior.salesOperations);
    assert.deepEqual(next.books, prior.books);
    assert.equal(Object.keys(prior.importExemptions).length, 4);
    for (const [scope, previous] of Object.entries(prior.importExemptions)) {
        assert.deepEqual(next.importExemptions[scope], previous);
        assert.ok(
            importExemptionCurrent(
                { ...d, context_opportunity: scope },
                previous,
            ),
        );
    }
    assert.equal(
        next.books['opportunity:329'].result.periods[0].fields['11'],
        null,
    );
    const report = JSON.stringify(
        createProjectDossierReport(d, {
            selectedSections: new Set(['finance']),
            version: 'QA G5C',
        }),
    );
    for (const token of [
        'P080',
        'opportunity:334',
        'Manica',
        '2026-12',
        'SYNTHETIC QA G5C',
        '0.00',
        '14(1)(a)',
        'campo11',
        ...rules.map((r) => r.id),
    ])
        assert.ok(report.includes(token), token);
    if (process.env.IVA_G5C_CALCULATED)
        fs.writeFileSync(process.env.IVA_G5C_CALCULATED, JSON.stringify(d));
});