import { Route } from '@/types';
import got from '@/utils/got';
import { load } from 'cheerio';
import { parseDate } from '@/utils/parse-date';

export const route: Route = {
    path: '/daily/:id?',
    categories: ['programming'],
    example: '/luogu/daily',
    parameters: { id: '年度日报所在帖子 id，可在 URL 中找到，不填默认为 `47327`' },
    features: {
        requireConfig: false,
        requirePuppeteer: false,
        antiCrawler: false,
        supportBT: false,
        supportPodcast: false,
        supportScihub: false,
    },
    radar: [
        {
            source: ['luogu.com.cn/discuss/47327', 'luogu.com.cn/'],
            target: '/daily',
        },
    ],
    name: '日报',
    maintainers: ['LogicJake', 'prnake', 'nczitzk'],
    handler,
    url: 'luogu.com.cn/discuss/47327',
};

async function handler(ctx) {
    const id = ctx.req.param('id') ?? 47327;
    const link = `https://www.luogu.com.cn/discuss/${id}`;
    const response = await got(link);
    const $ = load(response.data);
    const title = $('head title').text();

    const injectionScript = $('head script:contains("window._feInjection")').text();
    const jsonRaw = injectionScript.match(/window\._feInjection = JSON\.parse\(decodeURIComponent\("(.*?)"\)\);/)[1];
    const jsonDecode = JSON.parse(decodeURIComponent(jsonRaw));

    const mdRaw = jsonDecode.currentData.post.content;

    const dailyLink = mdRaw.match(/<([^>]*)>/)[1];
    const { data: dailyResponse } = await got(dailyLink);
    const $daily = load(dailyResponse);
    const issueHeading = $daily('.am-article-title').first().text().trim();
    const item = [
        {
            title,
            description: $daily('#article-content').html(),
            link,
            author: jsonDecode.currentData.post.author.name,
            guid: `${link}#${issueHeading}`,
            pubDate: parseDate(jsonDecode.currentData.post.time),
        },
    ];

    return {
        title: '洛谷日报',
        link,
        item,
    };
}