import { test } from 'node:test';
import assert from 'node:assert/strict';
import { applyTestConfig } from './helpers/testConfig.js';
import { WooClient } from '../src/clients/wooClient.js';
import { RelayError } from '../src/errors.js';

/**
 * Exercises the order-number fallback path against a stubbed fetch, because the
 * fuzzy behaviour of Woo's `search` is exactly what used to make a bogus order
 * number look like somebody else's order.
 */
function stubFetch(handler: (url: string) => { status: number; body: unknown }) {
  const original = globalThis.fetch;
  globalThis.fetch = (async (input: string | URL | Request) => {
    const url = typeof input === 'string' ? input : input.toString();
    const { status, body } = handler(url);
    return new Response(JSON.stringify(body), {
      status,
      headers: { 'Content-Type': 'application/json' },
    });
  }) as typeof globalThis.fetch;
  return () => {
    globalThis.fetch = original;
  };
}

test('a direct order fetch is returned as-is', async () => {
  applyTestConfig();
  const restore = stubFetch(() => ({ status: 200, body: { id: 555, number: '555' } }));
  try {
    const order = await new WooClient().getOrder({ orderNumber: '555' });
    assert.equal(order.id, 555);
  } finally {
    restore();
  }
});

test('the search fallback accepts only an exact order-number match', async () => {
  applyTestConfig();
  const restore = stubFetch((url) => {
    if (url.includes('/orders/12345')) return { status: 404, body: { message: 'nope' } };
    // Woo's fuzzy search returns an unrelated order.
    return { status: 200, body: [{ id: 987, number: '987' }] };
  });
  try {
    await new WooClient().getOrder({ orderNumber: '12345' });
    assert.fail('expected ORDER_NOT_FOUND');
  } catch (err) {
    assert.ok(err instanceof RelayError);
    assert.equal(err.code, 'ORDER_NOT_FOUND');
  } finally {
    restore();
  }
});

test('the search fallback returns a genuine custom-order-number match', async () => {
  applyTestConfig();
  const restore = stubFetch((url) => {
    if (url.includes('/orders/EK-2026-77')) return { status: 404, body: {} };
    return { status: 200, body: [{ id: 42, number: 'EK-2026-77' }, { id: 43, number: 'EK-2026-78' }] };
  });
  try {
    const order = await new WooClient().getOrder({ orderNumber: 'EK-2026-77' });
    assert.equal(order.id, 42);
  } finally {
    restore();
  }
});

test('a hidden product is filtered out of search results', async () => {
  applyTestConfig();
  const restore = stubFetch(() => ({
    status: 200,
    body: [
      { id: 1, name: 'Widoczny', catalog_visibility: 'visible' },
      { id: 2, name: 'Ukryty', catalog_visibility: 'hidden' },
    ],
  }));
  try {
    const products = await new WooClient().searchProducts('gaz', 5, 'PLN', 'pl');
    assert.equal(products.length, 1);
    assert.equal(products[0]?.id, 1);
  } finally {
    restore();
  }
});

test('an unpublished product is not returned by id', async () => {
  applyTestConfig();
  const restore = stubFetch(() => ({ status: 200, body: { id: 9, status: 'draft' } }));
  try {
    await new WooClient().getProduct({ productId: 9 });
    assert.fail('expected PRODUCT_NOT_FOUND');
  } catch (err) {
    assert.ok(err instanceof RelayError);
    assert.equal(err.code, 'PRODUCT_NOT_FOUND');
  } finally {
    restore();
  }
});