'use strict';

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

function imgurAlbum(post) {
    return fetch(`https://api.imgur.com/3/album/${post.host.id}`, {
        headers: {
            'Authorization': `Client-ID ${config.methods.imgur.clientId}`
        }
    }).then(res => res.json()).then(res => {
        const extract = config.library.album.extractSingleItem && res.data.images.length === 1;

        if(extract) {
            console.log('\x1b[36m%s\x1b[0m', `Extracting single item from album '${post.title}' - ${res.data.link}`);
        }

        return {
            album: extract ? null : {
                id: res.data.id,
                url: res.data.link,
                title: res.data.title,
                description: res.data.description,
                datetime: new Date(res.data.datetime * 1000),
                original: res.data
            },
            items: res.data.images.map(item => ({
                extracted: extract,
                id: item.id,
                url: item.animated ? item.mp4 : item.link,
                title: item.title || (extract ? res.data.title : null),
                description: item.description || (extract ? res.data.description : null),
                type: item.animated ? 'video/mp4' : item.type,
                datetime: item.datetime * 1000,
                original: item
            }))
        };
    }).catch(error => {
        console.error(error);
    });
};

module.exports = imgurAlbum;