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 groupId = ctx.params.id;

    const baseUrl = 'https://gihyo.jp';
    const url = `${baseUrl}/list/group/${groupId}`;

    const response = await got(url);

    const $ = cheerio.load(response.data);
    const articles = $('ul[class=m-listitem]').find('li').not('.m-listitem--ad');
    const title = $('head title').text();
    const link = url;
    const description = $('head meta[name=description]').attr('content');
    const language = 'ja';

    const item = articles
        .map((_, article) => {
            const _subtitle = $('p.m-listitem__title span.subtitle', article).text();
            const _title = $('p.m-listitem__title', article)
                .contents()
                .filter((_, el) => el.nodeType === 3)
                .text();
            const title = `${_subtitle} ${_title}`;
            const author = $('p.m-listitem__author', article).text();
            const pubDate = timezone(parseDate($('span.date', article).text(), 'YYYY-MM-DD'), +9);
            const link = `${baseUrl}${$('a', article).attr('href')}`.replace(/\?summary$/, '');
            return {
                title,
                author,
                pubDate,
                link,
            };
        })
        .get();

    ctx.state.data = {
        title,
        link,
        description,
        language,
        item,
    };
};