import { Route } from '@/types';

import cache from '@/utils/cache';
import got from '@/utils/got';
import { load } from 'cheerio';
import { parseDate } from '@/utils/parse-date';
import { art } from '@/utils/render';
import path from 'node:path';

export const handler = async (ctx) => {
    const { language = 'zh' } = ctx.req.param();
    const limit = ctx.req.query('limit') ? Number.parseInt(ctx.req.query('limit'), 10) : 30;

    const rootUrl = `https://${language === 'zh' ? 'www' : language.replaceAll(/[^\dA-Za-z-]/g, '')}.zhonglun.com`;
    const currentUrl = new URL('research/articles', rootUrl).href;

    const { data: response } = await got(currentUrl);

    const $ = load(response);

    let items = $('div#dataList > dl > dd, div#dataList > ul > li')
        .slice(0, limit)
        .toArray()
        .map((item) => {
            item = $(item);

            const description = art(path.join(__dirname, 'templates/description.art'), {
                intro: item.find('p').text(),
            });

            return {
                title: item.find('h3 > a').text(),
                description,
                pubDate: parseDate(item.find('span').text()),
                link: item.find('h3 > a').prop('href'),
                language,
            };
        });

    items = await Promise.all(
        items.map((item) =>
            cache.tryGet(item.link, async () => {
                const { data: detailResponse } = await got(item.link);

                const $$ = load(detailResponse);

                const title = $$('div.news_dtitle h2').text();
                const description =
                    item.description +
                    art(path.join(__dirname, 'templates/description.art'), {
                        description: $$('div.edit_con_original').html(),
                    });
                const image = $$('img.raw-image').first().prop('src');

                item.title = title;
                item.description = description;
                item.pubDate = parseDate($$('span.posttime').text());
                item.author = $$('span.author').text().split(/：/).pop();
                item.content = {
                    html: description,
                    text: $$('div.edit_con_original').text(),
                };
                item.image = image;
                item.banner = image;
                item.language = language;

                return item;
            })
        )
    );

    const image = new URL($('header.header h1 a img').prop('src'), rootUrl).href;

    return {
        title: `${$('title').text()} - ${$('div.siteban_text').text()}`,
        description: $('meta[name="description"]').prop('content'),
        link: currentUrl,
        item: items,
        allowEmpty: true,
        image,
        author: $('meta[name="author"]').prop('content'),
        language,
    };
};

export const route: Route = {
    path: '/research/article/:language{[a-zA-Z0-9-]+}?',
    name: '中伦研究专业文章',
    url: 'zhonglun.com',
    maintainers: ['nczitzk'],
    handler,
    example: '/zhonglun/research/article/zh',
    parameters: { category: '语言，默认为 zh，即简体中文，可在对应分类页 URL 中找到' },
    description: `
| ENG | 简体中文 | 日本語 | 한국어 |
| --- | -------- | ------ | ------ |
| en  | zh       | ja     | kr     |
    `,
    categories: ['new-media'],

    features: {
        requireConfig: false,
        requirePuppeteer: false,
        antiCrawler: false,
        supportRadar: true,
        supportBT: false,
        supportPodcast: false,
        supportScihub: false,
    },
    radar: [
        {
            title: '专业文章',
            source: ['zhonglun.com/research/articles'],
            target: '/research/article/zh',
        },
        {
            title: ' Articles',
            source: ['en.zhonglun.com/research/articles'],
            target: '/research/article/en',
        },
        {
            title: '論評',
            source: ['ja.zhonglun.com/research/articles'],
            target: '/research/article/ja',
        },
        {
            title: '전문기사',
            source: ['kr.zhonglun.com/research/articles'],
            target: '/research/article/kr',
        },
    ],
};