import assert from 'node:assert/strict';
import { readFile } from 'node:fs/promises';
import test from 'node:test';

import {
    extractOzonCharacteristics,
    extractOzonDescription,
    extractOzonJsonLdDescription,
    extractOzonGalleryImageUrls,
    extractOzonGalleryVideos,
} from '../lib/ozon-parser.ts';
import { dedupeImageUrl, normaliseImageUrl } from '../lib/product-media.ts';

test('Ozon gallery fixture only returns product-gallery images', async () => {
    const fixture = await readFile(
        new URL('../../../packages/reference/ozon1.html', import.meta.url),
        'utf8',
    );
    const state = fixture.match(
        /id="state-webGallery-[^"]+"\s+data-state='([^']+)'/,
    )?.[1];
    assert.ok(state, 'Ozon gallery widget state must exist in the fixture');

    const urls = extractOzonGalleryImageUrls(
        JSON.parse(state),
        'https://www.ozon.ru/product/ryukzak-5387005639/',
    );
    assert.equal(urls.length, 11);
    assert.ok(urls.every((url) => /\/s3\/multimedia-/.test(url)));
    assert.ok(
        urls.every(
            (url) => !/logo_ozon|payments-cdn|recommend|review/i.test(url),
        ),
    );
});

test('Ozon short characteristics fixture returns its product parameters', async () => {
    const fixture = await readFile(
        new URL('../../../packages/reference/ozon1.html', import.meta.url),
        'utf8',
    );
    const state = fixture.match(
        /id="state-webShortCharacteristics-[^"]+"\s+data-state='([^']+)'/,
    )?.[1];
    assert.ok(state, 'Ozon short characteristics widget state must exist');

    const attributes = extractOzonCharacteristics([
        {
            ...JSON.parse(state),
            __atlasWidgetName: 'webShortCharacteristics-fixture',
        },
    ]);
    assert.equal(attributes.length, 5);
    assert.deepEqual(
        attributes.slice(0, 3).map(({ name, value }) => ({ name, value })),
        [
            { name: '类型', value: '背包' },
            { name: '原产国', value: '中国' },
            { name: '材料', value: 'Cordura 1000D' },
        ],
    );
});

test('Ozon rich annotation converts to description text without images', () => {
    const description = extractOzonDescription([
        {
            __atlasWidgetName: 'webDescription-fixture',
            richAnnotationJson: JSON.stringify([
                { type: 'text', content: '耐用的背包' },
                { type: 'image', src: 'https://ir.ozone.ru/s3/example.jpg' },
                { type: 'text', text: '适合旅行' },
            ]),
        },
    ]);
    assert.equal(description?.value, '耐用的背包\n适合旅行');
});

test('Ozon JSON-LD Product description is the fallback when rich content is absent', () => {
    const root = {
        scripts: [{
            type: 'application/ld+json',
            textContent: JSON.stringify({
                '@context': 'http://schema.org',
                '@type': 'Product',
                name: '喷雾器',
                description: '来自 Ozon JSON-LD 的完整商品描述',
            }),
        }],
    } as unknown as Document;
    assert.equal(
        extractOzonJsonLdDescription(root)?.value,
        '来自 Ozon JSON-LD 的完整商品描述',
    );
});

test('Ozon full characteristics merge with the five short header characteristics', () => {
    const attributes = extractOzonCharacteristics([
        {
            __atlasWidgetName: 'webShortCharacteristics-fixture',
            characteristics: [{ id: 'type', title: { textRs: [{ content: '类型' }] }, values: [{ text: '喷雾器' }] }],
        },
        {
            __atlasWidgetName: 'webCharacteristics-fixture',
            characteristics: [{ id: 'weight', title: { textRs: [{ content: '商品重量，克' }] }, values: [{ text: '385' }] }],
        },
    ]);
    assert.deepEqual(attributes.map(({ name, value }) => ({ name, value })), [
        { name: '类型', value: '喷雾器' },
        { name: '商品重量，克', value: '385' },
    ]);
});

test('Ozon thumbnail variants normalise to one original URL', () => {
    const original = 'https://ir.ozone.ru/s3/multimedia-1-9/13597160877.jpg';
    const thumbnail =
        'https://ir.ozone.ru/s3/multimedia-1-9/wc100/13597160877.jpg?width=100&quality=80';
    assert.equal(normaliseImageUrl(thumbnail, original, 'ozon'), original);
    assert.equal(
        dedupeImageUrl(thumbnail, 'ozon'),
        dedupeImageUrl(original, 'ozon'),
    );
});

test('Ozon gallery only accepts direct product MP4/WebM videos and retains poster', () => {
    assert.deepEqual(
        extractOzonGalleryVideos(
            {
                videos: [
                    {
                        url: 'https://cdn.ozon.ru/product/demo.mp4',
                        coverImage: 'https://ir.ozone.ru/s3/multimedia-1/demo.jpg',
                    },
                    { videoUrl: 'https://cdn.ozon.ru/product/demo.mp4' },
                    { url: 'https://cdn.ozon.ru/product/stream.m3u8' },
                    { url: 'blob:https://www.ozon.ru/opaque' },
                ],
            },
            'https://www.ozon.ru/product/demo-1/',
        ),
        [{
            url: 'https://cdn.ozon.ru/product/demo.mp4',
            posterUrl: 'https://ir.ozone.ru/s3/multimedia-1/demo.jpg',
        }],
    );
});

test('Alibaba transformed image URLs normalise before de-duplication', () => {
    const original = 'https://cbu01.alicdn.com/img/ibank/O1CN01.jpg';
    const transformed = `${original}_400x400.jpg?width=400`;
    assert.equal(normaliseImageUrl(transformed, original, '1688'), original);
});