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

// http://www.2cycd.com/forum.php?mod=forumdisplay&fid=43&orderby=dateline

module.exports = async (ctx) => {
    const fid = ctx.params.fid ?? '43';
    const sort = ctx.params.sort ?? 'dateline';

    const rootUrl = 'http://www.2cycd.com/forum.php?mod=forumdisplay';
    const currentUrl = `${rootUrl}&fid=${fid}&orderby=${sort}`;

    const response = await got(currentUrl, {
        responseType: 'buffer',
    });

    const $ = cheerio.load(iconv.decode(response.data, 'gbk'));

    const list = $('tbody[id^="normalthread_"]')
        .map((_, item) => {
            item = $(item);
            const xst = item.find('a.s.xst');
            const author = item.find('td.by cite a').eq(0).text();
            return {
                title: xst.text(),
                link: xst.attr('href'),
                author,
            };
        })
        .get();
    // console.log(list);
    const items = await Promise.all(
        list.map((item) =>
            ctx.cache.tryGet(item.link, async () => {
                const detailResponse = await got(item.link, {
                    responseType: 'buffer',
                });

                const content = cheerio.load(iconv.decode(detailResponse.data, 'gbk'));
                const first_post = content('td[id^="postmessage_"]').first();
                const dateobj = content('em[id^="authorposton"]').first();
                item.description = first_post.html();
                item.pubDate = timezone(parseDate(dateobj.find('span').attr('title'), 'YYYY-M-D HH:mm:ss'), +8);

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