Added command handling and a word mash game.

src/games/mash.js

@@ -0,0 +1,100 @@
+'use strict';
+
+const config = require('config');
+const words = require('../../assets/mash-words.json');
+let mash = null;
+
+function start(length, context, attempt = 0) {
+    const lengthWords = words[length];
+
+    if (!lengthWords) {
+	context.sendMessage(`No words with ${length} letters available`, context.room.id);
+
+	return;
+    }
+
+    if (mash) {
+	context.sendMessage(`The mash **${mash.anagram}** was not guessed, possible answers: ${mash.answers.map((answer) => `**${answer}**`).join(', ')}`, context.room.id);
+	context.logger.info(`Mash '${mash.anagram}' discarded`);
+
+	mash = null;
+    }
+
+    const wordEntries = Object.entries(lengthWords);
+    const [key, answers] = wordEntries[Math.floor(Math.random() * wordEntries.length)];
+
+    const anagram = key.split('').sort(() => Math.random() > .5 ? 1 : -1).join('');
+
+    if (answers.includes(anagram)) {
+	if (attempt >= 10) {
+	    context.sendMessage(`Sorry, I did not find a mashable ${length}-letter word`);
+	    return;
+	}
+
+	start(length, context, attempt + 1);
+
+	return;
+    }
+
+    mash = { key, anagram, answers };
+
+    context.sendMessage(`Stomp stomp, here's your mash: **${mash.anagram}**`, context.room.id);
+    context.logger.info(`Mash started, '${anagram}' with answers ${answers.map((answer) => `'${answer}'`).join(', ')}`);
+}
+
+function play(word, context) {
+    if (word.length !== mash.key.length) {
+	context.sendMessage(`Your answer needs to be ${mash.key.length} letters, ${context.user.username}`, context.room.id);
+	return;
+    }
+
+    const key = word.split('').sort().join('');
+
+    if (key !== mash.key) {
+	context.sendMessage(`You are not using the letters in **${mash.anagram}**, ${context.user.username}`, context.room.id);
+	return;
+    }
+
+    if (word === mash.anagram) {
+	context.sendMessage(`${context.user.username}... :expressionless:`, context.room.id);
+	return;
+    }
+
+    if (mash.answers.includes(word)) {
+	context.sendMessage(mash.answers.length === 1
+	    ? `**${word}** is the right answer, ${context.user.username}! There were no other options for **${mash.anagram}**.`
+	    : `**${word}** is the right answer, ${context.user.username}! Other options for **${mash.anagram}**: ${mash.answers.filter((answer) => answer !== word).map((word) => `**${word}**`).join(', ')}`, context.room.id);
+
+	context.logger.info(`Mash '${mash.anagram}' guessed by '${context.user.username}' with '${word}'`);
+
+	mash = null;
+
+	setTimeout(() => start(word.length, context), 2000);
+    }
+}
+
+function onCommand(args, context) {
+    const length = Number(args[0]);
+
+    if (!Number.isNaN(length)) {
+	start(length, context);
+	return;
+    }
+
+    if (!args[0] && !mash) {
+	context.sendMessage(`Start a mash with ${config.prefix}mash {length}`, context.room.id);
+	return;
+    }
+
+    if (!args[0] && mash) {
+	context.sendMessage(`The current mash is: **${mash.anagram}**`, context.room.id);
+	return;
+    }
+
+    play(args[0], context);
+}
+
+module.exports = {
+    name: 'Mash',
+    onCommand,
+};