const got = require('@/utils/got');
const cheerio = require('cheerio');
const url = require('url');
const host = 'http://www.szse.cn/';
module.exports = async (ctx) => {
    const link = 'http://www.szse.cn/disclosure/notice/company/index.html';
    const response = await got.get(link, {
        Referer: host,
    });
    const $ = cheerio.load(response.data);
    // 正则表达式匹配Script标签的url和title变量
    function getData(jscontent, option) {
        // eslint-disable-next-line
        const urlpattern = /(?<=curHref \= \'\.\/).*?(?=\'\;)/;
        // eslint-disable-next-line
        const titlepattern = /(?<=curTitle \=\').*?(?=\'\;)/;

        switch (option) {
            case 'title': {
                const jsoutput = jscontent.match(titlepattern);
                return jsoutput;
            }
            case 'url': {
                const jsoutput = jscontent.match(urlpattern);
                return jsoutput;
            }
            default: {
                // console.log('default');
                break;
            }
        }
    }

    const list = $('.article-list .newslist li')
        .map(function () {
            const info = {
                title: getData($(this).find('script').html(), 'title'),
                link: `http://www.szse.cn/disclosure/notice/company/${getData($(this).find('script').html(), 'url')}`,
                date: $(this).find('span.time').text().trim(), // trim移除多余的空格
            };
            return info;
        })
        .get();
    const out = await Promise.all(
        list.map(async (info) => {
            const title = info.title;
            const date = info.date;
            const itemUrl = url.resolve(host, info.link);
            const cache = await ctx.cache.get(itemUrl);
            if (cache) {
                return Promise.resolve(JSON.parse(cache));
            }
            const response = await got.get(itemUrl, {
                Referer: host,
            });
            const $ = cheerio.load(response.data);
            const description = $('#desContent').html();
            const single = {
                title,
                link: itemUrl,
                description,
                pubDate: new Date(date).toDateString(),
            };
            ctx.cache.set(itemUrl, JSON.stringify(single));
            return Promise.resolve(single);
        })
    );
    ctx.state.data = {
        title: '深圳证券交易所——上市公告-可转换债券',
        link,
        item: out,
    };
};