'use strict';

const config = require('config');
const fetch = require('node-fetch');
const UrlPattern = require('url-pattern');
const cheerio = require('cheerio');
const mime = require('mime-types');

const logger = require('../logger')(__filename);

const pattern = new UrlPattern('https\\://(www.)vidble.com/:id(_med)(.:ext)');

async function vidbleAlbum(host, post) {
    const res = await fetch(`https://www.vidble.com/album/${host.id}`);

    if (res.status !== 200) {
        throw new Error(`Could not fetch info for vidble album '${host.id}': '${res.error}'`);
    }

    const html = await res.text();
    const $ = cheerio.load(html);

    const title = $('h2').text();
    const imgUrls = $('img.img2').toArray().map(img => `https://vidble.com${img.attribs.src || img.attribs['data-original']}`);
    const extract = config.library.extractSingleAlbumItem && imgUrls.length === 1;

    if (extract) {
        logger.verbose(`Extracting single item from album '${post.title}' - ${res.link}`);
    }

    return {
        album: extract ? null : {
            id: host.id,
            url: post ? post.url : null,
            title: post ? post.title : title,
            datetime: post ? post.datetime : null,
        },
        items: imgUrls.map((url) => {
            const components = pattern.match(url);
            const id = components.id.replace('_med', '');
            const mimetype = mime.lookup(components.ext);

            return {
                extracted: extract,
                id,
                url: `https://vidble.com/${id}.${components.ext}`,
                type: mimetype,
                datetime: post ? post.datetime : null,
            };
        }),
    };
}

module.exports = vidbleAlbum;