Fact Command

commands/random/fact.js

@@ -0,0 +1,55 @@
+const { Command } = require('discord.js-commando');
+const snekfetch = require('snekfetch');
+
+module.exports = class FactCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'fact',
+			aliases: ['wikifakt'],
+			group: 'random',
+			memberName: 'fact',
+			description: 'Responds with a random fact.'
+		});
+	}
+
+	async run(msg) {
+		try {
+			const article = await this.randomWikipediaArticle();
+			const { body } = await snekfetch
+				.get('https://en.wikipedia.org/w/api.php')
+				.query({
+					action: 'query',
+					prop: 'extracts',
+					format: 'json',
+					titles: article,
+					exintro: '',
+					explaintext: '',
+					redirects: '',
+					formatversion: 2
+				});
+			let fact = body.query.pages[0].extract;
+			if (fact.length > 200) {
+				const facts = fact.split('.');
+				fact = `${facts[0]}.`;
+				if (fact.length < 200 && facts.length > 1) fact += `${facts[1]}.`;
+			}
+			return msg.say(fact);
+		} catch (err) {
+			return msg.reply(`Oh no, an error occurred: \`${err.message}\`. Try again later!`);
+		}
+	}
+
+	async randomWikipediaArticle() {
+		const { body } = await snekfetch
+			.get('https://en.wikipedia.org/w/api.php')
+			.query({
+				action: 'query',
+				list: 'random',
+				rnnamespace: 0,
+				rnlimit: 1,
+				format: 'json',
+				formatversion: 2
+			});
+		return body.query.random[0].title;
+	}
+};