'use strict';

const util = require('util');
const config = require('config');
const fetch = require('node-fetch');
const fs = require('fs-extra');

function redditVideo(post) {
    return fetch(`${post.permalink}.json`).then(res => res.json()).then(res => {
        return res[0].data.children[0].data.media.reddit_video.fallback_url;
    }).then(videoUrl => {
        const audioUrl = videoUrl.split('/').slice(0, -1).join('/') + '/audio';

        return fetch(audioUrl, {
            method: 'HEAD'
        }).then(res => {
            const item = {
                album: null,
                items: [{
                    id: post.host.id || post.id,
                    url: videoUrl,
                    title: post.title,
                    datetime: post.datetime,
                    type: 'video/mp4',
                    original: post
                }]
            };

            if(res.status === 200) {
                item.items[0].mux = [audioUrl];
            }

            return item;
        });
    });
};

module.exports = redditVideo;