20 Questions Command

commands/games-sp/20-questions.js

@@ -0,0 +1,139 @@
+const Command = require('../../structures/Command');
+const request = require('node-superfetch');
+const cheerio = require('cheerio');
+const { stripIndents } = require('common-tags');
+const baseURI = 'http://y.20q.net';
+
+module.exports = class TwentyQuestionsCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: '20-questions',
+			aliases: ['twenty-questions', '20-q', 'twenty-q'],
+			group: 'games-sp',
+			memberName: '20-questions',
+			description: 'Think of something and 20Q will read your mind by asking a few simple questions.',
+			credit: [
+				{
+					name: '20Q.net',
+					url: 'http://20q.net/',
+					reason: 'API'
+				}
+			]
+		});
+	}
+
+	async run(msg) {
+		const current = this.client.games.get(msg.channel.id);
+		if (current) return msg.reply(`Please wait until the current game of \`${current.name}\` is finished.`);
+		try {
+			const startURL = await this.initialize();
+			let question = await this.startGame(startURL);
+			let referer = question.url;
+			let win = null;
+			this.client.games.set(msg.channel.id, { name: this.name });
+			while (win === null) {
+				const answers = question.answers.map(answer => answer.text.toLowerCase());
+				answers.push('end');
+				await msg.say(stripIndents`
+					**${question.question}**
+					${question.answers.map(answer => answer.text).join(' | ')} | End
+				`);
+				const filter = res => res.author.id === msg.author.id && answers.includes(res.content.toLowerCase());
+				const msgs = await msg.channel.awaitMessages(filter, {
+					max: 1,
+					time: 30000
+				});
+				if (!msgs.size) {
+					await msg.say('Sorry, time is up!');
+					win = 'time';
+					break;
+				}
+				const choice = msgs.first().content.toLowerCase();
+				if (choice === 'end') {
+					win = 'time';
+					break;
+				}
+				const answer = question.answers[answers.indexOf(choice)];
+				question = await this.nextQuestion(answer.href, question.url);
+				if (question.win) {
+					win = question.win;
+					break;
+				}
+			}
+			this.client.games.delete(msg.channel.id);
+			if (win === 'time') return msg.say('Game ended due to forfeit.');
+			return msg.say(stripIndents`
+				**${question.win ? 'You won!' : '20Q won!'}**
+				${question.result}
+			`);
+		} catch (err) {
+			this.client.games.delete(msg.channel.id);
+			return msg.reply(`Oh no, an error occurred: \`${err.message}\`. Try again later!`);
+		}
+	}
+
+	async initialize() {
+		const { text } = await request
+			.get(`${baseURI}/gsq-en`)
+			.set({ Referer: 'http://www.20q.net/' });
+		const $ = cheerio.load(text);
+		return $('form').first().attr('action');
+	}
+
+	async startGame(startURL) {
+		const { text } = await request
+			.post(`${baseURI}${startURL}`)
+			.set({
+				Origin: `${baseURI}/`,
+				Referer: `${baseURI}/gsq-en`
+			})
+			.attach({
+				submit: '  Play  ',
+				age: '',
+				cctkr: 'US,AR,VI,GB,AF,PL'
+			});
+		const $ = cheerio.load(text);
+		const text = $('big').eq(2).children().first();
+		const answers = [];
+		$(text).find('a').each((i, elem) => {
+			const href = `${baseURI}${$(elem).attr('href')}`;
+			answers.push({ href, text: $(elem).text().trim() })
+		});
+		return {
+			question: text.text().split('\n')[0],
+			answers,
+			url: `${baseURI}${startURL}`
+		}
+	}
+
+	async nextQuestion(url, referer) {
+		const { text } = await request
+			.get(url)
+			.set({ Referer: referer });
+		const $ = cheerio.load(text);
+		const win = $('h2').first().text();
+		if (win === '20Q won!') {
+			return {
+				win: false,
+				result: $('big').first().children().first().text()
+			};
+		}
+		if (win === 'You won!') {
+			return {
+				win: true,
+				result: 'I was unable to guess what you were thinking. Nice job!'
+			};
+		}
+		const text = $('big').first().children().first();
+		const answers = [];
+		$(text).find('a').each((i, elem) => {
+			const href = `${baseURI}${$(elem).attr('href')}`;
+			answers.push({ href, text: $(elem).text().trim() })
+		});
+		return {
+			question: text.text().split('\n')[0],
+			answers,
+			url: `${baseURI}${startURL}`
+		}
+	}
+};

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "xiao",
-	"version": "134.15.0",
+	"version": "134.16.0",
 	"description": "Your personal server companion.",
 	"main": "Xiao.js",
 	"private": true,