const got = require('@/utils/got');
const cheerio = require('cheerio');
const timezone = require('@/utils/timezone');
const { parseDate } = require('@/utils/parse-date');

module.exports = async (ctx) => {
    const category = ctx.params.category || '';

    const rootUrl = 'https://ls.chiculture.org.hk';
    const currentUrl = `${rootUrl}/api/general-listing?lang=zh-hant&type=ssrh&category=${category}&page=1`;
    const response = await got({
        method: 'get',
        url: currentUrl,
    });

    const list = response.data.data.map((item) => ({
        title: item.title,
        pubDate: item.tags,
        link: `${rootUrl}${item.url}`,
    }));

    const items = await Promise.all(
        list.map((item) =>
            ctx.cache.tryGet(item.link, async () => {
                const detailResponse = await got({
                    method: 'get',
                    url: item.link,
                });
                const content = cheerio.load(detailResponse.data);

                const pubDate = detailResponse.data.match(/上載日期：(.*)<\/p>/);

                if (pubDate) {
                    item.pubDate = parseDate(pubDate[1]);
                } else if (item.title.indexOf('一周時事通識') > -1) {
                    for (const tag of item.pubDate) {
                        if (tag.title.match(/^\d{4}年$/)) {
                            const monthDayStr = item.title.split('- ')[1] ? item.title.split('- ')[1] : item.title.split('-')[1];
                            item.pubDate = timezone(parseDate(monthDayStr, 'D/M'), +8);
                            break;
                        }
                    }
                } else if (item.title.match(/^\d{4}年新聞回顧$/)) {
                    item.pubDate = parseDate(`${item.title.split('年')[0]}-12-31`);
                } else {
                    item.pubDate = '';
                }

                item.description = content('#article_main_content').html();

                return item;
            })
        )
    );

    ctx.state.data = {
        title: '議題熱話 | 通識·現代中國',
        link: `${rootUrl}/tc/hot-topics${category ? `?category=${category}` : ''}`,
        item: items,
    };
};