import test from 'node:test';
import assert from 'node:assert/strict';
import fs from 'node:fs';
import {
    newImportExemption,
    evaluateImportExemption,
    recordImportExemptions,
    saveImportExemptionBook,
    importExemptionBook,
    importExemptionCurrent,
    importExemptionRules,
    importCustomsSource,
} from '../../resources/js/lib/iva-import-exemptions.ts';
import { salesCurrent } from '../../resources/js/lib/iva-operations.ts';
import { acquisitionCurrent } from '../../resources/js/lib/iva-acquisitions.ts';
import { createProjectDossierReport } from '../../resources/js/lib/project-dossier-report.ts';
const frozen = JSON.parse(
    fs.readFileSync(
        new URL('./fixtures/iva-g6c-inputs.json', import.meta.url),
        'utf8',
    ),
);
const ids = [
    'customs_transit_import',
    'customs_temporary_import',
    'customs_drawback_import',
];
const row = (treatment = ids[0]) => ({
    ...newImportExemption('g6d-' + treatment, 'MZN'),
    treatment,
    description: 'SYNTHETIC QA ' + treatment,
    period: '2026-12',
    declaredValue: '5000',
    importer: 'SYNTHETIC QA importador',
    documentRef: 'SYNTHETIC QA G6D ' + treatment,
    documentDate: '2026-11-14',
    evidence:
        'SYNTHETIC QA bens, regime e isenção total de direitos expressamente assumidos; não é documento real',
    conditions: Object.fromEntries(
        importExemptionRules
            .find((r) => r.id === treatment)
            .conditions.map(([key]) => [key, 'yes']),
    ),
});
const draft = () => ({
    ...structuredClone(frozen),
    context_opportunity: 'opportunity:333',
    project_title: 'SYNTHETIC QA — G6D / Regimes aduaneiros',
});

void test('P048 has three treatments,one branch;regime and total customs exemption both required,unknown is not zero', () => {
    for (const id of ids) {
        const input = row(id),
            rule = importExemptionRules.find((r) => r.id === id);
        assert.equal(rule.branch, 'P048');
        assert.equal(evaluateImportExemption(input, 'MZN').importVat, '0.00');
        for (const [key] of rule.conditions)
            for (const value of ['', 'no', 'unknown']) {
                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,
            );
        assert.deepEqual(input, row(id));
    }
    assert.match(
        importCustomsSource,
        /isentas totalmente de direitos aduaneiros/,
    );
});

void test('partial relief,suspension or former reimport confirmation never substitute for full exemption;regimes keep distinct confirmations', () => {
    const input = row();
    for (const evidence of [
        'SYNTHETIC QA redução parcial50%',
        'SYNTHETIC QA mera suspensão de direitos',
    ]) {
        const result = evaluateImportExemption(
            {
                ...input,
                evidence,
                conditions: { ...input.conditions, fullCustomsExemption: 'no' },
            },
            'MZN',
        );
        assert.equal(result.status, 'not_applicable');
        assert.equal(result.importVat, null);
        assert.match(result.reason, /sem taxa presumida/);
    }
    assert.equal(
        evaluateImportExemption(
            {
                ...input,
                conditions: { customsTransit: 'yes', customsExempt: 'yes' },
            },
            'MZN',
        ).status,
        'indeterminate',
    );
    const switched = { ...input, treatment: ids[1] };
    assert.equal(
        evaluateImportExemption(switched, 'MZN').status,
        'indeterminate',
    );
    assert.equal(switched.documentRef, input.documentRef);
    assert.equal(switched.conditions.customsTransit, 'yes');
    assert.equal(
        evaluateImportExemption(
            {
                ...switched,
                conditions: { ...switched.conditions, customsTemporary: 'yes' },
            },
            'MZN',
        ).status,
        'exempt',
    );
    assert.equal(
        evaluateImportExemption({ ...input, treatment: ids[2] }, 'MZN').status,
        'indeterminate',
    );
});

void test('explicit classification archives indeterminate/nonapplicable inputs;currency and context changes mark earlier result historical', () => {
    const d = draft(),
        input = row();
    let book = recordImportExemptions(d, {
        rows: [{ ...input, conditions: { customsTransit: 'yes' } }],
    });
    assert.equal(book.result.rows[0].status, 'indeterminate');
    book = recordImportExemptions(d, {
        ...book,
        rows: [
            {
                ...input,
                conditions: { ...input.conditions, fullCustomsExemption: 'no' },
            },
        ],
    });
    assert.equal(book.result.rows[0].status, 'not_applicable');
    book = recordImportExemptions(d, { ...book, rows: ids.map(row) });
    assert.equal(book.history.length, 2);
    assert.equal(book.history[0].rows[0].importVat, null);
    assert.equal(book.history[1].rows[0].importVat, null);
    assert.ok(importExemptionCurrent(d, book));
    for (const patch of [
        { currency: 'USD' },
        { context_opportunity: 'opportunity:332' },
        { selection_labels: { province_id: 'Maputo' } },
    ])
        assert.ok(!importExemptionCurrent({ ...d, ...patch }, book));
});

void test('save/recover/report preserve24acceptedbooks current;P048 has three report rows and never populates deduction field11', () => {
    const d = draft(),
        prior = JSON.parse(frozen.modelo_a_snapshot);
    let book = recordImportExemptions(d, {
        rows: ids.map((id) => ({ ...row(id), conditions: {} })),
    });
    book = recordImportExemptions(d, { ...book, rows: ids.map(row) });
    d.modelo_a_snapshot = saveImportExemptionBook(d, book);
    assert.deepEqual(importExemptionBook(JSON.parse(JSON.stringify(d))), book);
    assert.match(book.result.sourceKey, /import-customs-regimes\/1/);
    assert.doesNotMatch(
        book.result.sourceKey,
        /beneficiaryVersion|assetVersion/,
    );
    assert.match(book.result.source, /12\(1\)\(c\)/);
    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, 3);
    for (const [scope, imports] of Object.entries(prior.importExemptions)) {
        assert.deepEqual(next.importExemptions[scope], imports);
        assert.ok(
            importExemptionCurrent(
                { ...d, context_opportunity: scope },
                imports,
            ),
        );
    }
    for (const [scope, sales] of Object.entries(next.salesOperations))
        assert.ok(salesCurrent({ ...d, context_opportunity: scope }, sales));
    assert.ok(
        acquisitionCurrent(
            { ...d, context_opportunity: 'opportunity:329' },
            next.books['opportunity:329'],
        ),
    );
    for (const field of ['11', '17', '18'])
        assert.equal(
            next.books['opportunity:329'].result.periods[0].fields[field],
            null,
        );
    const report = JSON.stringify(
        createProjectDossierReport(d, {
            selectedSections: new Set(['finance']),
            version: 'QA G6D',
        }),
    );
    for (const token of [
        'P048',
        'opportunity:333',
        'Manica',
        '2026-12',
        'SYNTHETIC QA G6D',
        '0.00',
        '12(1)(c)',
        'campo11',
        ...ids,
    ])
        assert.ok(report.includes(token), token);
    if (process.env.IVA_G6D_CALCULATED)
        fs.writeFileSync(process.env.IVA_G6D_CALCULATED, JSON.stringify(d));
});