const got = require('@/utils/got');
const { parseDate } = require('@/utils/parse-date');
const cheerio = require('cheerio');
const asyncPool = require('tiny-async-pool');

module.exports = async (ctx) => {
    const category = ctx.params.category ?? 'today';
    const currentUrl = `https://tw.nextapple.com/realtime/${category}`;
    const response = await got(currentUrl);
    const $ = cheerio.load(response.data);
    const items = [];
    for await (const item of asyncPool(5, $('article.infScroll'), (item) => {
        const link = $(item).find('.post-title').attr('href');
        return ctx.cache.tryGet(link, async () => {
            const response = await got(link);
            const $ = cheerio.load(response.data);
            const mainContent = $('#main-content');
            const titleElement = mainContent.find('header h1');
            const title = titleElement.text();
            titleElement.remove();
            const postMetaElement = mainContent.find('.post-meta');
            const category = postMetaElement.find('.category').text();
            const pubDate = parseDate(postMetaElement.find('time').attr('datetime'));
            postMetaElement.remove();
            $('.post-comments').remove();

            return {
                title,
                description: mainContent.html(),
                category,
                pubDate,
                link,
            };
        });
    })) {
        items.push(item);
    }

    ctx.state.data = {
        title: $('title').text(),
        link: currentUrl,
        item: items,
    };
};