const parser = require('@/utils/rss-parser');
const cheerio = require('cheerio');

module.exports = async (ctx) => {
    const user = ctx.params.user;
    const tag = ctx.params.tag;
    const rootUrl = 'https://www.inoreader.com/stream';
    const rssUrl = `${rootUrl}/user/${user}/tag/${tag}`;
    const feed = await parser.parseURL(rssUrl);
    feed.items = feed.items.map((item) => {
        if (item && item.enclosure && item.enclosure.type.includes('audio')) {
            // output podcast rss
            // get first image in content
            let firstImgSrc = '';
            if (item.content !== null) {
                const $ = cheerio.load(item.content);
                firstImgSrc = $('img').first().attr('src');
            }
            return {
                title: item.title,
                pubDate: item.pubDate,
                link: item.link,
                description: item.content,
                category: item.categories,
                itunes_item_image: firstImgSrc,
                enclosure_url: item.enclosure.url,
                enclosure_length: item.enclosure.length,
                enclosure_type: item.enclosure.type,
            };
        }
        return {
            title: item?.title ?? '',
            pubDate: item?.pubDate ?? '',
            link: item?.link ?? '',
            description: item?.content ?? '',
            category: item?.categories ?? [],
        };
    });
    ctx.state.data = {
        title: feed.title,
        itunes_author: 'Inoreader',
        image: 'https://www.inoreader.com/brand/img/ino_app_icon.png',
        link: feed.link,
        description: feed.description,
        item: feed.items,
    };
};