import test from 'node:test';
import assert from 'node:assert/strict';
import fs from 'node:fs';
import {
    newExclusionBase,
    newExclusionPart,
    switchExclusionPart,
    exclusionTreatments,
    exclusionConditions,
    partConditions,
    evaluateExclusion,
    recordExclusions,
    saveExclusionBook,
    exclusionBook,
    exclusionCurrent,
    exclusionReportRows,
} from '../../resources/js/lib/iva-exclusion-base.ts';
import { compositionCurrent } from '../../resources/js/lib/iva-composition-base.ts';
import { fuelBaseCurrent } from '../../resources/js/lib/iva-fuel-base.ts';
import { createProjectDossierReport } from '../../resources/js/lib/project-dossier-report.ts';
const frozen = JSON.parse(
    fs.readFileSync(
        new URL('./fixtures/iva-g7g-preserved-inputs.json', import.meta.url),
        'utf8',
    ),
);
const part = (treatment = 'judicial_indemnity', id = treatment) => ({
    ...newExclusionPart(id),
    treatment,
    description: 'SYNTHETIC QA ' + treatment,
    amount: {
        judicial_indemnity: '100.10',
        granted_discount: '50.25',
        third_party_payment: '30.15',
        returnable_packaging: '20.05',
    }[treatment],
    included: 'yes',
    reference:
        'SYNTHETIC QA referência ' +
        id +
        ' / declaração judicial e contrato quando aplicável',
    scope: 'SYNTHETIC QA operação A,montante e condições deste tratamento',
    accountRef: 'SYNTHETIC QA contas de terceiros A',
    beneficiaryRef: 'SYNTHETIC QA adquirente B',
    documentExcerpt:
        'SYNTHETIC QA factura A,embalagens separadas,devolução acordada expressamente',
    conditions: Object.fromEntries(
        partConditions(treatment).map(([key]) => [key, 'yes']),
    ),
});
const row = () => ({
    ...newExclusionBase('g7g-operation-A', 'MZN'),
    description: 'SYNTHETIC QA exclusões operação A',
    period: '2026-12',
    operationRef: 'SYNTHETIC QA operação A',
    initialAmount: '1000.25',
    initialRef:
        'SYNTHETIC QA montante sem próprioIVA,inclusões15(5)consideradas',
    documentRef: 'SYNTHETIC QA G7G documento A',
    documentDate: '2026-12-12',
    exclusionRef: 'SYNTHETIC QA quatro exclusões reconciliadas,sem duplicação',
    evidence: 'SYNTHETIC QA pressupostos expressos,não documento real',
    conditions: Object.fromEntries(
        exclusionConditions.map(([key]) => [key, 'yes']),
    ),
    parts: exclusionTreatments.map((t) => part(t.id)),
});
const draft = () => ({
    ...structuredClone(frozen),
    context_opportunity: 'opportunity:345',
    project_title: 'SYNTHETIC QA — G7G / Exclusões da contraprestação',
});

void test('P102 four treatments each own statutoryconditions and references;unknown/no never become automatic exclusion', () => {
    const input = row(),
        ok = evaluateExclusion(input, 'MZN');
    assert.equal(ok.baseAmount, '799.70');
    assert.equal(ok.vat, null);
    assert.equal(ok.rate, null);
    for (const [key] of exclusionConditions)
        for (const value of ['', 'unknown', 'no']) {
            const r = evaluateExclusion(
                { ...input, conditions: { ...input.conditions, [key]: value } },
                'MZN',
            );
            assert.equal(
                r.status,
                value === 'no' ? 'not_applicable' : 'indeterminate',
            );
            assert.equal(r.baseAmount, null);
        }
    for (const t of exclusionTreatments) {
        const p = part(t.id);
        assert.equal(
            evaluateExclusion({ ...input, parts: [p] }, 'MZN').status,
            'determined',
        );
        for (const [key] of partConditions(t.id))
            for (const value of ['', 'unknown', 'no']) {
                const r = evaluateExclusion(
                    {
                        ...input,
                        parts: [
                            {
                                ...p,
                                conditions: { ...p.conditions, [key]: value },
                            },
                        ],
                    },
                    'MZN',
                );
                assert.equal(
                    r.status,
                    value === 'no' ? 'not_applicable' : 'indeterminate',
                );
                assert.equal(r.baseAmount, null);
                assert.equal(r.vat, null);
            }
        for (const patch of [
            { reference: '' },
            { scope: '' },
            { description: '' },
            { included: '' },
            { amount: '' },
        ])
            assert.equal(
                evaluateExclusion(
                    { ...input, parts: [{ ...p, ...patch }] },
                    'MZN',
                ).baseAmount,
                null,
            );
    }
    for (const patch of [
        { description: '' },
        { operationRef: '' },
        { initialRef: '' },
        { documentRef: '' },
        { documentDate: '2026-02-30' },
        { exclusionRef: '' },
        { evidence: '' },
        { period: '2025-12' },
        { currency: 'USD' },
    ])
        assert.equal(
            evaluateExclusion({ ...input, ...patch }, 'MZN').baseAmount,
            null,
        );
    for (const patch of [{ accountRef: '' }, { beneficiaryRef: '' }])
        assert.equal(
            evaluateExclusion(
                {
                    ...input,
                    parts: [{ ...part('third_party_payment'), ...patch }],
                },
                'MZN',
            ).baseAmount,
            null,
        );
    assert.equal(
        evaluateExclusion(
            {
                ...input,
                parts: [
                    { ...part('returnable_packaging'), documentExcerpt: '' },
                ],
            },
            'MZN',
        ).baseAmount,
        null,
    );
});

void test('subtract included exclusions only,alreadyexcluded retained;exactdecimal/zero/excess;switch retains unrelated references and clearsconditions', () => {
    const input = row();
    assert.equal(
        evaluateExclusion(
            {
                ...input,
                parts: input.parts.map((p) => ({ ...p, included: 'no' })),
            },
            'MZN',
        ).baseAmount,
        '1000.25',
    );
    assert.equal(
        evaluateExclusion(
            {
                ...input,
                parts: input.parts.map((p) => ({
                    ...p,
                    included:
                        p.treatment === 'judicial_indemnity' ? 'no' : 'yes',
                })),
            },
            'MZN',
        ).baseAmount,
        '899.80',
    );
    assert.equal(
        evaluateExclusion(
            {
                ...input,
                initialAmount: '0',
                parts: [{ ...part(), amount: '0' }],
            },
            'MZN',
        ).baseAmount,
        '0.00',
    );
    assert.equal(
        evaluateExclusion(
            {
                ...input,
                initialAmount: '1.000002',
                parts: [{ ...part(), amount: '0.000001' }],
            },
            'MZN',
        ).baseAmount,
        '1.000001',
    );
    assert.equal(
        evaluateExclusion(
            {
                ...input,
                initialAmount: '999999999999999.999999',
                parts: [{ ...part(), amount: '0.000001' }],
            },
            'MZN',
        ).baseAmount,
        '999999999999999.999998',
    );
    for (const amount of ['-1', 'NaN', '0.0000001', '', '1000.26'])
        assert.equal(
            evaluateExclusion(
                { ...input, parts: [{ ...part(), amount }] },
                'MZN',
            ).baseAmount,
            null,
        );
    assert.equal(
        evaluateExclusion({ ...input, initialAmount: '' }, 'MZN').baseAmount,
        null,
    );
    const switched = switchExclusionPart(
        part('third_party_payment'),
        'returnable_packaging',
    );
    assert.deepEqual(switched.conditions, {});
    for (const field of [
        'amount',
        'reference',
        'scope',
        'accountRef',
        'beneficiaryRef',
        'documentExcerpt',
        'included',
    ])
        assert.equal(switched[field], part('third_party_payment')[field]);
    assert.equal(
        evaluateExclusion({ ...input, parts: [switched] }, 'MZN').baseAmount,
        null,
    );
    assert.equal(
        evaluateExclusion({ ...input, parts: [] }, 'MZN').baseAmount,
        null,
    );
    assert.equal(
        evaluateExclusion({ ...input, parts: [part(), part()] }, 'MZN')
            .baseAmount,
        null,
    );
});

void test('save/recovery/history/report keep one base/four exclusions and all84 previous books/currentkeys unchanged', () => {
    const d = draft(),
        prior = JSON.parse(d.modelo_a_snapshot);
    assert.deepEqual(exclusionBook(d), { rows: [] });
    assert.deepEqual(exclusionReportRows(d), []);
    let book = recordExclusions(d, { rows: [{ ...row(), conditions: {} }] });
    book = recordExclusions(d, {
        ...book,
        rows: [
            {
                ...row(),
                parts: [
                    {
                        ...part('granted_discount'),
                        conditions: { granted: 'no' },
                    },
                ],
            },
        ],
    });
    book = recordExclusions(d, { ...book, rows: [row()] });
    assert.equal(book.history.length, 2);
    assert.ok(
        book.history.every((h) =>
            h.rows.every((r) => r.baseAmount === null && r.vat === null),
        ),
    );
    assert.ok(exclusionCurrent(d, book));
    assert.equal(book.result.rows.length, 1);
    assert.equal(book.result.inputs[0].parts.length, 4);
    for (const field of [
        'amount',
        'included',
        'reference',
        'treatment',
        'scope',
        'accountRef',
        'beneficiaryRef',
        'documentExcerpt',
    ])
        assert.ok(
            !exclusionCurrent(d, {
                ...book,
                rows: book.rows.map((r) => ({
                    ...r,
                    parts: r.parts.map((p) => ({ ...p, [field]: 'changed' })),
                })),
            }),
        );
    for (const patch of [
        { context_opportunity: 'opportunity:346' },
        { currency: 'USD' },
        { selection_labels: { province_id: 'Maputo' } },
    ])
        assert.ok(!exclusionCurrent({ ...d, ...patch }, book));
    d.modelo_a_snapshot = saveExclusionBook(d, book);
    assert.deepEqual(exclusionBook(JSON.parse(JSON.stringify(d))), book);
    const next = JSON.parse(d.modelo_a_snapshot);
    const { considerationExclusions: _considerationExclusions, ...untouched } =
        next;
    assert.deepEqual(untouched, prior);
    for (const [scope, previous] of Object.entries(
        prior.considerationCompositions,
    ))
        assert.ok(
            compositionCurrent({ ...d, context_opportunity: scope }, previous),
        );
    for (const [scope, previous] of Object.entries(prior.regulatedFuelBases))
        assert.ok(
            fuelBaseCurrent({ ...d, context_opportunity: scope }, previous),
        );
    assert.equal(
        next.considerationCompositions['opportunity:344'].result.rows[0]
            .baseAmount,
        '1150.60',
    );
    assert.equal(
        next.noncashBases['opportunity:343'].result.rows[1].baseAmount,
        '2700.75',
    );
    assert.equal(
        next.regulatedFuelBases['opportunity:342'].result.rows[0].baseAmount,
        '1400.15',
    );
    assert.equal(
        next.importExemptions['opportunity:338'].result.rows[1].importVat,
        '400.00',
    );
    assert.equal(
        next.books['opportunity:329'].result.periods[0].fields['11'],
        null,
    );
    const report = JSON.stringify(
        createProjectDossierReport(d, {
            selectedSections: new Set(['finance']),
            version: 'QA G7G',
        }),
    );
    for (const token of [
        'Base P102',
        '799.70',
        'IVA: Indeterminado',
        'opportunity:345',
        'Manica',
        '2026-12',
        'operação A',
        '15(6)',
        '100.10',
        '27(5)(b)',
        'contas de terceiros A',
        'devolução acordada',
        'campo11',
    ])
        assert.ok(report.includes(token), token);
    assert.equal(exclusionReportRows(d).length, 1);
    assert.deepEqual(
        exclusionReportRows({ ...d, context_opportunity: 'opportunity:346' }),
        [],
    );
    if (process.env.IVA_G7G_CALCULATED)
        fs.writeFileSync(process.env.IVA_G7G_CALCULATED, JSON.stringify(d));
});

void test('corrupt nested exclusions/store cannot overwrite originals;duplicate operation ids cannot be recorded', () => {
    const d = draft(),
        original = d.modelo_a_snapshot;
    for (const patch of [
        { initialAmount: 4 },
        { conditions: [] },
        { parts: {} },
        { parts: [{ ...part(), amount: 4 }] },
        { parts: [{ ...part(), conditions: [] }] },
        { parts: [null] },
    ])
        assert.throws(
            () => saveExclusionBook(d, { rows: [{ ...row(), ...patch }] }),
            /originais preservados/,
        );
    assert.equal(d.modelo_a_snapshot, original);
    assert.throws(
        () => recordExclusions(d, { rows: [row(), row()] }),
        /distintos/,
    );
    assert.throws(() => recordExclusions(d, { rows: [] }), /distintos/);
    assert.throws(
        () =>
            exclusionBook({
                ...d,
                modelo_a_snapshot: JSON.stringify({
                    ...JSON.parse(original),
                    considerationExclusions: [],
                }),
            }),
        /originais preservados/,
    );
});