import assert from 'node:assert/strict';
import http from 'node:http';
import test from 'node:test';
import {
	SYNTHETIC_ROWS,
	compareCase,
	deriveCases,
	runCheck,
	emitNumberVectors,
	emitScreenVectors,
	equals,
	matchesSearch,
	screenFacets,
	screenFound,
	screenRows,
} from './svod2_search_oracle.mjs';

const mk = (id, type, dir, org) => ({ data: { line_id: id, header: { smeta_type: type, smeta_direction: dir, org_name: org } } });
const rows2 = [mk(1, 'КВ', 'Развитие', 'А'), mk(2, 'АХР', 'Поддержка', 'Б')];
const rows3 = [mk(1, 'КВ', 'Р', 'Филиал Ёлки'), mk(2, 'КВ', 'Р', 'Филиал Ёлки'), mk(3, 'КВ', 'Р', null)];

test('перекрытое поле contract_summary не ищется', () => {
	const row = { data: { header: { name: 'x' }, contract_summary: { counterparty: 'ООО Ромашка' }, contract_detail: { counterparty: null } } };
	assert.equal(matchesSearch(row, 'ромаш'), false);
});
test('число ищется в записи JS', () => {
	const row = { data: { header: {}, contract_summary: {}, contract_detail: JSON.parse('{"ceiling_amount": 1234.50}') } };
	assert.equal(matchesSearch(row, '1234.5'), true);
	assert.equal(matchesSearch(row, '1234.50'), false);
});
test('screenRows: trim + lower, NBSP по краям', () => {
	const rows = [{ data: { line_id: 1, header: { name: 'Аренда помещения' } } }];
	assert.deepEqual(screenRows(rows, { search: ' АРЕНДА ' }).map((r) => r.data.line_id), [1]);
	assert.deepEqual(screenRows(rows, { search: ' аренда ' }).map((r) => r.data.line_id), [1]);
});
test('equals: регистр и пробелы по краям, null не проходит', () => {
	const r = (v) => ({ getValue: () => v });
	assert.equal(equals(r('КВ'), 'smeta_type', 'кв '), true);
	assert.equal(equals(r(null), 'smeta_type', 'кв'), false);
});
test('screenFacets: свой фильтр не применяется, чужие — да', () => {
	const f = screenFacets(rows2, { filters: { smeta_type: 'КВ' } });
	assert.deepEqual(f.smeta_type, [['АХР', 1], ['КВ', 1]]);
	assert.deepEqual(f.smeta_direction, [['Развитие', 1]]);
});
test('screenFacets: одинаковые названия — один вариант, null не выдаётся', () => {
	assert.deepEqual(screenFacets(rows3).org_name, [['Филиал Ёлки', 2]]);
});
test('screenFound считает только поиск', () => {
	assert.deepEqual(screenFound(rows2, ''), { found: 2, total: 2 });
});
test('векторы чисел', () => {
	const v = Object.fromEntries(emitNumberVectors().map(({ input, js }) => [input, js]));
	assert.equal(v['1e21'], '1e+21');
	assert.equal(v['-0'], '0');
	assert.equal(v['1e-7'], '1e-7');
	assert.equal(v['0.000001'], '0.000001');
	assert.equal(v['100.00'], '100');
	assert.equal(v['9007199254740993'], '9007199254740992');
});
test('векторы экрана: не меньше 12 случаев', () => {
	const s = emitScreenVectors();
	assert.ok(s.cases.length >= 12);
	assert.ok(s.rows.length >= 10 && s.rows.length <= 15);
});

test('deriveCases: не меньше 8 случаев и есть дробное число', () => {
	const cases = deriveCases(SYNTHETIC_ROWS);
	assert.ok(cases.length >= 8);
	for (const required of ['аренда', 'АРЕНДА', '1', ',']) {
		assert.ok(cases.some((c) => c.search === required && Object.keys(c.filters).length === 0), required);
	}
	assert.ok(cases.some((c) => /\d\.\d|\de-\d/.test(c.search)));
});

const expectedFor = (rows, { search, filters }) => ({
	line_ids: screenRows(rows, { search, filters }).map((r) => r.data.line_id),
	total: screenRows(rows, { search, filters }).length,
	found: screenFound(rows, search).found,
	facets: screenFacets(rows, { search, filters }),
});

test('compareCase: совпадение даёт пустой массив, различия находятся', () => {
	const base = expectedFor(SYNTHETIC_ROWS, { search: 'ё', filters: {} });
	assert.deepEqual(compareCase(base, structuredClone(base)), []);
	const swapped = structuredClone(base);
	swapped.line_ids.reverse();
	assert.ok(compareCase(base, swapped).length > 0);
	const counted = structuredClone(base);
	counted.facets.smeta_type[0][1] += 1;
	assert.ok(compareCase(base, counted).length > 0);
});

const startStub = async ({ corrupt = false } = {}) => {
	const server = http.createServer((req, res) => {
		const url = new URL(req.url, 'http://x');
		const send = (body, status = 200) => {
			res.writeHead(status, { 'content-type': 'application/json' });
			res.end(JSON.stringify(body));
		};
		if (url.pathname === '/api/v1/auth/login') return send({ access_token: 't' });
		const m = url.pathname.match(/^\/api\/v1\/svod\/2\/(GO|RF)\/(\d+)(\/facets)?$/);
		if (!m) return send({}, 404);
		const q = url.searchParams;
		const opts = {
			search: q.get('search') ?? '',
			filters: Object.fromEntries(['smeta_type', 'smeta_direction', 'org_name'].filter((k) => q.get(k)).map((k) => [k, q.get(k)])),
		};
		const hasNew = ['view', 'search', 'smeta_type', 'smeta_direction', 'org_name'].some((k) => q.has(k));
		if (!hasNew) return send({ result: SYNTHETIC_ROWS.map((r) => ({ row_type: 'row', depth: 0, sort_order: null, data: r.data })) });
		if (m[3]) {
			const f = screenFacets(SYNTHETIC_ROWS, opts);
			const out = { total: f.total, search_total: f.search_total };
			for (const id of ['smeta_type', 'smeta_direction', 'org_name']) out[id] = f[id].map(([value, count]) => ({ value, count }));
			return send({ result: out });
		}
		const all = screenRows(SYNTHETIC_ROWS, opts);
		const offset = Number(q.get('offset') ?? 0);
		const limit = Number(q.get('limit') ?? all.length);
		let page = all.slice(offset, offset + limit);
		if (corrupt && offset === 0) page = page.slice().reverse();
		return send({ count: page.length, total: all.length, result: page.map((r) => ({ row_type: 'row', depth: 0, sort_order: null, data: r.data })) });
	});
	await new Promise((resolve) => server.listen(0, '127.0.0.1', resolve));
	return { server, api: `http://127.0.0.1:${server.address().port}` };
};

test('runCheck на заглушке API: ok true', async () => {
	const { server, api } = await startStub();
	try {
		const r = await runCheck({ api, username: 'u', password: 'p', year: 2026, pageSize: 3 });
		assert.deepEqual(r.report, []);
		assert.equal(r.ok, true);
	} finally {
		server.close();
	}
});

test('runCheck: испорченная страница даёт ok false', async () => {
	const { server, api } = await startStub({ corrupt: true });
	try {
		const r = await runCheck({ api, username: 'u', password: 'p', year: 2026, pageSize: 3 });
		assert.equal(r.ok, false);
		assert.ok(r.report.length > 0);
	} finally {
		server.close();
	}
});