const cheerio = require('cheerio');
const { host, puppeteerGet } = require('./utils');
const config = require('@/config').value;
const { parseDate } = require('@/utils/parse-date');
const timezone = require('@/utils/timezone');

module.exports = async (ctx) => {
    const { gchannel = 'paimai' } = ctx.params;
    let channelName = '';
    let link = '';

    switch (gchannel) {
        case 'paimai':
            channelName = '拍卖信息';
            link = `${host}/customs/302249/zfxxgk/2799825/2799883/index.html`;
            break;
        case 'fagui':
            channelName = '海关法规';
            link = `${host}/customs/302249/302266/index.html`;
            break;
        default:
            channelName = '拍卖信息';
            link = `${host}/customs/302249/zfxxgk/2799825/2799883/index.html`;
            break;
    }

    const browser = await require('@/utils/puppeteer')();

    const list = await ctx.cache.tryGet(
        link,
        async () => {
            const response = await puppeteerGet(link, browser);
            const $ = cheerio.load(response);
            const list = $('[class^="conList_ul"] li')
                .toArray()
                .map((item) => {
                    item = $(item);
                    return {
                        title: item.find('a').attr('title'),
                        link: new URL(item.find('a').attr('href'), host).href,
                        date: parseDate(item.find('span').text()),
                    };
                });
            return list;
        },
        config.cache.routeExpire,
        false
    );

    const out = await Promise.all(
        list.map((info) =>
            ctx.cache.tryGet(info.link, async () => {
                const response = await puppeteerGet(info.link, browser);
                const $ = cheerio.load(response);
                let date;

                $('.easysite-news-operation').remove();
                if (/\d{4}-\d{2}-\d{2} \d{2}:\d{2}/.test($('.easysite-news-describe').text())) {
                    date = timezone(parseDate($('.easysite-news-describe').text(), 'YYYY-MM-DD HH:mm'), 8);
                }
                const description = $('.easysite-news-peruse').html();

                return {
                    title: info.title,
                    link: info.link,
                    description,
                    pubDate: date || info.date,
                };
            })
        )
    );

    browser.close();

    ctx.state.data = {
        title: `中国海关-${channelName}`,
        link,
        item: out,
    };
};