import { describe, expect, it } from 'vitest';
import type { EntryOut, OsvGroupType } from '../../types/api';
import { flattenEntries } from './osvRows';

let row = 0;
const e = (
	id: string,
	parent: string | null,
	groupType: OsvGroupType,
	value: string,
	amounts: Partial<Pick<EntryOut, 'opening_debit' | 'turnover_debit' | 'closing_credit'>> = {},
	extra: Partial<EntryOut> = {},
): EntryOut => ({
	id,
	row_number: ++row,
	level: null,
	parent_entry_id: parent,
	row_value: value,
	group_type: groupType,
	group_name: null,
	account_code: null,
	counterparty_name: null,
	counterparty_inn: null,
	opening_debit: null,
	opening_credit: null,
	turnover_debit: null,
	turnover_credit: null,
	closing_debit: null,
	closing_credit: null,
	...amounts,
	...extra,
});

describe('flattenEntries', () => {
	it('строки — только аналитика нижнего уровня с субсчётом', () => {
		const { rows } = flattenEntries([
			e('62', null, 'ACCOUNT', '62', { opening_debit: '10' }, { account_code: '62' }),
			e('62.01', '62', 'ACCOUNT', '62.01', {}, { account_code: '62.01' }),
			e('a', '62.01', 'COUNTERPARTY', 'ООО А', { opening_debit: '7' }, { account_code: '62.01', counterparty_inn: '123' }),
			e('b', '62.01', 'COUNTERPARTY', 'ООО Б', { opening_debit: '3' }, { account_code: '62.01' }),
		]);
		expect(rows.map((r) => [r.account, r.analytics, r.inn, r.opening_debit])).toEqual([
			['62.01', 'ООО А', '123', '7'],
			['62.01', 'ООО Б', null, '3'],
		]);
	});

	it('подразделение — из родительской строки DEPARTMENT', () => {
		const { rows, hasDepartments } = flattenEntries([
			e('62', null, 'ACCOUNT', '62', {}, { account_code: '62' }),
			e('62.01', '62', 'ACCOUNT', '62.01', {}, { account_code: '62.01' }),
			e('d', '62.01', 'DEPARTMENT', 'БП Аренда', {}, { account_code: '62.01' }),
			e('a', 'd', 'COUNTERPARTY', 'РБ', {}, { account_code: '62.01' }),
		]);
		expect(hasDepartments).toBe(true);
		expect(rows.map((r) => [r.department, r.analytics])).toEqual([['БП Аренда', 'РБ']]);
	});

	it('договоры не отдельными строками: остаётся строка контрагента', () => {
		const { rows } = flattenEntries([
			e('58', null, 'ACCOUNT', '58.03', {}, { account_code: '58.03' }),
			e('a', '58', 'COUNTERPARTY', 'РБ ТК', { opening_debit: '100' }, { account_code: '58.03' }),
			e('c1', 'a', 'CONTRACT', 'Договор 1', { opening_debit: '60' }, { account_code: '58.03' }),
			e('c2', 'a', 'CONTRACT', 'Договор 2', { opening_debit: '40' }, { account_code: '58.03' }),
		]);
		expect(rows.map((r) => [r.analytics, r.opening_debit])).toEqual([['РБ ТК', '100']]);
	});

	it('объекты ОС (OTHER) — строки аналитики', () => {
		const { rows } = flattenEntries([
			e('01', null, 'ACCOUNT', '01', {}, { account_code: '01' }),
			e('o', '01', 'OTHER', 'Автопогрузчик', { opening_debit: '5' }, { account_code: '01.01' }),
		]);
		expect(rows.map((r) => [r.account, r.analytics])).toEqual([['01.01', 'Автопогрузчик']]);
	});

	it('субсчёт и подразделение без нижних строк — строка с пустой аналитикой; пустые без сумм — нет', () => {
		const { rows } = flattenEntries([
			e('62', null, 'ACCOUNT', '62', {}, { account_code: '62' }),
			e('62.21', '62', 'ACCOUNT', '62.21', { closing_credit: '128041.39' }, { account_code: '62.21' }),
			e('62.22', '62', 'ACCOUNT', '62.22', {}, { account_code: '62.22' }),
			e('d', '62', 'DEPARTMENT', 'Опт', { turnover_debit: '1' }, { account_code: '62' }),
		]);
		expect(rows.map((r) => [r.account, r.department, r.analytics])).toEqual([
			['62.21', null, null],
			['62', 'Опт', null],
		]);
	});

	it('итог — сумма корневых строк, а не листьев (развёрнутое сальдо 1С)', () => {
		const { total } = flattenEntries([
			e('60', null, 'ACCOUNT', '60', { closing_credit: '100.10' }, { account_code: '60' }),
			e('a', '60', 'COUNTERPARTY', 'А', { closing_credit: '150.10' }, { account_code: '60' }),
			e('76', null, 'ACCOUNT', '76', { closing_credit: '0.20' }, { account_code: '76' }),
		]);
		expect(total.closing_credit).toBe('100.30');
		expect(total.opening_debit).toBeNull();
	});

	it('субсчета для фильтра — уникальные, в натуральном порядке', () => {
		const { accounts } = flattenEntries([
			e('62', null, 'ACCOUNT', '62', {}, { account_code: '62' }),
			e('b', '62', 'COUNTERPARTY', 'Б', {}, { account_code: '62.10' }),
			e('a', '62', 'COUNTERPARTY', 'А', {}, { account_code: '62.02' }),
			e('c', '62', 'COUNTERPARTY', 'В', {}, { account_code: '62.02' }),
		]);
		expect(accounts).toEqual(['62.02', '62.10']);
	});

	it('пустой документ', () => {
		expect(flattenEntries([])).toEqual({
			rows: [],
			total: expect.objectContaining({ opening_debit: null }),
			accounts: [],
			hasDepartments: false,
		});
	});
});