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

module.exports = async (ctx) => {
    const type = ctx.params.type;
    if (type === 'zfcgyxgk') {
        const url = `https://zbb.nju.edu.cn/zfcgyxgk/index.chtml`;

        const response = await got({
            method: 'get',
            url,
        });

        const data = response.data;

        const $ = cheerio.load(data);
        const list = $('dd[cid]');

        ctx.state.data = {
            title: '政府采购意向公开',
            link: url,
            item: list
                .map((index, item) => {
                    item = $(item);
                    return {
                        title: item.find('a').attr('title'),
                        description: item.find('a').first().text(),
                        link: 'https://zbb.nju.edu.cn' + item.find('a').attr('href'),
                        pubDate: timezone(parseDate(item.find('span').first().text(), 'YYYY-MM-DD'), +8),
                    };
                })
                .get(),
        };
    } else {
        const title_dict = {
            cgxx: '采购信息',
            cjgs: '成交公示',
        };
        const category_dict = {
            hw: '货物类',
            gc: '工程类',
            fw: '服务类',
        };

        const items = await Promise.all(
            Object.keys(category_dict).map(async (c) => {
                const response = await got({
                    method: 'get',
                    url: `https://zbb.nju.edu.cn/${type}${c}/index.chtml`,
                });

                const data = response.data;
                const $ = cheerio.load(data);
                const list = $('dd[cid]');

                return Promise.resolve(
                    list
                        .map((index, item) => {
                            item = $(item);
                            return {
                                title: item.find('a').attr('title'),
                                description: item.find('a').first().text(),
                                link: 'https://zbb.nju.edu.cn' + item.find('a').attr('href'),
                                pubDate: timezone(parseDate(item.find('span').first().text(), 'YYYY-MM-DD'), +8),
                                category: category_dict[c],
                            };
                        })
                        .get()
                );
            })
        );

        ctx.state.data = {
            title: title_dict[type],
            link: `https://zbb.nju.edu.cn/${type}hw/index.chtml`,
            item: [...items[0], ...items[1], ...items[2]],
        };
    }
};