'use strict';

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

function attachContentInfo(posts) {
    return Promise.all(posts.reduce((acc, post) => {
        if(post.host && methods[post.host.method]) {
            acc = acc.concat(methods[post.host.method](post).then(content => Object.assign(post, {content})).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 methods.redditPreview(post).then(content => Object.assign(post, {content}));
                }

                return null;
            }));
        } else {
            console.log('\x1b[33m%s\x1b[0m', `Ignoring unsupported content '${post.url}' (${post.permalink})`);
        }

        return acc;
    }, [])).then(posts => posts.filter(post => post));
};

module.exports = attachContentInfo;