'use strict';

const config = require('config');
const Promise = require('bluebird');

const methods = require('../methods/methods.js');

const attachContentInfo = users => Promise.reduce(Object.values(users), async (accUsers, user) => ({
    ...accUsers,
    [user.name]: {
        ...user,
        posts: await Promise.reduce(user.posts, async (accPosts, post) => {
            if (!post.host || !methods[post.host.method]) {
                console.log('\x1b[33m%s\x1b[0m', `Ignoring unsupported content '${post.url}' (${post.permalink})`);

                return accPosts;
            }

            try {
                return [...accPosts, { ...post, content: await methods[post.host.method](post.host, post) }];
            } catch (error) {
                console.log('\x1b[31m%s\x1b[0m', `${error} (${post.permalink})`);

                if (config.fetch.archives.preview && post.preview) {
                    console.log(`Found preview images for unavailable source '${post.url}' (${post.permalink})`);

                    return [...accPosts, { ...post, previewFallback: true, content: await methods.redditPreview(post.host, post) }];
                }

                return accPosts;
            }
        }, []),
    },
}), {});

async function getInfo(host) {
    return methods[host.method](host);
}

module.exports = {
    attachContentInfo,
    getInfo,
};