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

const gbk2utf8 = (s) => iconv.decode(s, 'gbk');
const host = 'https://www.flyert.com';
const target = `${host}/forum.php?mod=forumdisplay&sum=all&fid=all&catid=322`;

module.exports = async (ctx) => {
    const response = await got(target, {
        responseType: 'buffer',
    });

    const $ = cheerio.load(gbk2utf8(response.data));
    const list = $('.comiis_wzli')
        .map((_index, item) => ({
            title: $(item).find('.wzbt').text(),
            link: `${host}/${$(item).find('.wzbt a').attr('href')}`,
            description: $(item).find('.wznr > div:first-child').text(),
        }))
        .get();

    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(gbk2utf8(detailResponse.data));

                // remove top ad
                content('div.artical_top').remove();

                item.description = content('#artMain').html();
                item.pubDate = timezone(parseDate(content('p.xg1 > span:nth-child(1)').attr('title') || content('p.xg1').text().split('|')[0], 'YYYY-M-D HH:mm'), +8);
                return item;
            })
        )
    );
    ctx.state.data = {
        title: '飞客茶馆优惠',
        link: 'https://www.flyert.com/',
        description: '飞客茶馆优惠',
        item: items,
    };
};