const { Command } = require('discord.js-commando');
const snekfetch = require('snekfetch');
const { stripIndents } = require('common-tags');

module.exports = class RedditCommand extends Command {
	constructor(client) {
		super(client, {
			name: 'reddit',
			aliases: ['subreddit'],
			group: 'random',
			memberName: 'reddit',
			description: 'Responds with a random post from a subreddit.',
			args: [
				{
					key: 'subreddit',
					prompt: 'What subreddit would you like to get a post from?',
					type: 'string',
					parse: subreddit => encodeURIComponent(subreddit)
				}
			]
		});
	}

	async run(msg, { subreddit }) {
		try {
			const { body } = await snekfetch
				.get(`https://www.reddit.com/r/${subreddit}/new.json`)
				.query({ sort: 'new' });
			const allowed = msg.channel.nsfw ? body.data.children : body.data.children.filter(post => !post.data.over_18);
			if (!allowed.length) return msg.say('Could not find any results.');
			const post = allowed[Math.floor(Math.random() * allowed.length)].data;
			return msg.say(stripIndents`
				**${post.title}**
				<https://www.reddit.com${post.permalink}>

				⬆ ${post.ups}
				⬇ ${post.downs}
			`);
		} catch (err) {
			if (err.status === 403) return msg.say('This subreddit is private.');
			if (err.status === 404) return msg.say('Could not find any results.');
			return msg.reply(`Oh no, an error occurred: \`${err.message}\`. Try again later!`);
		}
	}
};
