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

module.exports = async (ctx) => {
    let id = ctx.params.id;

    const rootUrl = 'https://www.aeaweb.org';
    const currentUrl = `${rootUrl}/journals/${id}`;

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

    let $ = cheerio.load(response.data);

    $('.read-more').remove();

    id = $('input[name="journal"]').attr('value');

    const title = $('.page-title').text();
    const description = $('.intro-copy').text();
    const searchUrl = `${rootUrl}/journals/search-results?journal=${id}&ArticleSearch[current]=1`;

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

    $ = cheerio.load(response.data);

    let items = $('h4.title a')
        .toArray()
        .map((item) => {
            item = $(item);

            return {
                link: `${rootUrl}${item.attr('href').split('&')[0]}`,
            };
        });

    items = await Promise.all(
        items.map((item) =>
            ctx.cache.tryGet(item.link, async () => {
                const detailResponse = await got({
                    method: 'get',
                    url: item.link,
                });

                const content = cheerio.load(detailResponse.data);

                item.doi = content('meta[name="citation_doi"]').attr('content');

                item.guid = item.doi;
                item.title = content('meta[name="citation_title"]').attr('content');
                item.author = content('.author')
                    .toArray()
                    .map((a) => content(a).text().trim())
                    .join(', ');
                item.pubDate = parseDate(content('meta[name="citation_publication_date"]').attr('content'), 'YYYY/MM');
                item.description = art(path.join(__dirname, 'templates/description.art'), {
                    description: content('meta[name="twitter:description"]')
                        .attr('content')
                        .replace(/\(\w+ \d+\)( - )?/, ''),
                });

                return item;
            })
        )
    );

    ctx.state.data = {
        title,
        description,
        link: currentUrl,
        item: items,
    };
};