modify poll command to use letters instead of numbers as answer indices

plugins/poll/index.js

@@ -10,6 +10,8 @@ const help = {
 	usage: 'poll -q \'[question]\' -a \'[answer]\' -a \'[answer]\''
 };
 
+let getLetter = index => String.fromCodePoint(127462 + index);   // 127462 is the decimal code of :regional_indicator_a:
+
 class Poll extends BasePlugin {
 	constructor() {
 		super();
@@ -25,32 +27,6 @@ class Poll extends BasePlugin {
 	async handler(msg) {
 		super.handler(msg);
 
-		const numToString = {
-			0: ':zero:',
-			1: ':one:',
-			2: ':two:',
-			3: ':three:',
-			4: ':four:',
-			5: ':five:',
-			6: ':six:',
-			7: ':seven:',
-			8: ':eight:',
-			9: ':nine:'
-		};
-
-		const numToEmoji = {
-			0: '0⃣',
-			1: '1⃣',
-			2: '2⃣',
-			3: '3⃣',
-			4: '4⃣',
-			5: '5⃣',
-			6: '6⃣',
-			7: '7⃣',
-			8: '8⃣',
-			9: '9⃣'
-		};
-
 		const m = minimist(this.args.join(' '), {
 			string: ['q', 'question', 'a', 'answer']
 		});
@@ -61,17 +37,12 @@ class Poll extends BasePlugin {
 		if (!question || Array.isArray(question)) {
 			return msg.reply('🚫 You must supply 1 question.');
 		}
-		if (
-			!answers ||
-      answers.length < 2 ||
-      !Array.isArray(answers) ||
-      answers.length > 10
-		) {
-			return msg.reply('🚫 You must supply between 2 and 10 answers.');
+		if (!Array.isArray(answers) || answers.length < 2 || answers.length > 26) {
+			return msg.reply('🚫 You must supply between 2 and 26 answers.');
 		}
 		let answerMsg = '';
 		for (let i = 0; i < answers.length; i++) {
-			answerMsg += `${numToString[i]} ${answers[i]}\n`;
+			answerMsg += `${getLetter(i)} ${answers[i]}\n`;
 		}
 		const embed = {
 			title: question,
@@ -98,7 +69,7 @@ class Poll extends BasePlugin {
 			console.log(e);
 			const response = await msg.channel.sendEmbed(new RichEmbed(embed));
 			for (let i = 0; i < answers.length; i++) {
-				await response.react(numToEmoji[i]);
+				await response.react(getLetter(i));
 			}
 		} catch (err) {
 			console.error(err);