SubredditCommand structure

structures/commands/ImgurAlbum.js

@@ -20,6 +20,10 @@ module.exports = class ImgurAlbumCommand extends Command {
 		}
 	}
 
+	generateText() {
+		throw new Error('The generateText method is required.');
+	}
+
 	async random() {
 		if (this.cache) return this.cache[Math.floor(Math.random() * this.cache.length)];
 		const { body } = await request

structures/commands/Subreddit.js

@@ -0,0 +1,48 @@
+const request = require('node-superfetch');
+const Command = require('../Command');
+
+module.exports = class SubredditCommand extends Command {
+	constructor(client, info) {
+		super(client, info);
+
+		this.subreddit = info.subreddit;
+		this.postType = info.postType;
+	}
+
+	async run(msg, { subreddit }) {
+		if (!subreddit) subreddit = typeof this.subreddit === 'function' ? this.subreddit() : this.subreddit;
+		try {
+			const { post, subreddit } = await this.random(msg.channel.nsfw);
+			if (!post) return msg.reply(`I couldn't fetch anything from r/${subreddit}...`);
+			return msg.say(this.generateText(post, subreddit));
+		} catch (err) {
+			if (err.status === 403) return msg.say('This subreddit is private.');
+			if (err.status === 404) return msg.say('Could not find any results.');
+			return msg.reply(`Oh no, an error occurred: \`${err.message}\`. Try again later!`);
+		}
+	}
+
+	generateText() {
+		throw new Error('The generateText method is required.');
+	}
+
+	async random(subreddit, nsfw) {
+		const { body } = await request
+			.get(`https://www.reddit.com/r/${subreddit}/top.json`)
+			.query({
+				sort: 'top',
+				t: 'day',
+				limit: 100
+			});
+		const posts = body.data.children.filter(post => {
+			if (!post.data) return false;
+			if (!nsfw && post.data.over_18) return false;
+			return (this.postType ? post.data.post_hint === this.postType : true) && post.data.url && post.data.title;
+		});
+		if (!posts.length) return null;
+		return {
+			subreddit,
+			post: posts[Math.floor(Math.random() * posts.length)].data
+		};
+	}
+};