Updates

commands/number-edit/currency.js

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+const { Command } = require('discord.js-commando');
+const snekfetch = require('snekfetch');
+const { list } = require('../../util/Util');
+const codes = require('../../assets/json/currency');
+
+module.exports = class CurrencyCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'currency',
+			aliases: ['currency-convert', 'convert-currency'],
+			group: 'number-edit',
+			memberName: 'currency',
+			description: 'Converts money from one currency to another.',
+			details: `**Codes**: ${codes.join(', ')}`,
+			args: [
+				{
+					key: 'base',
+					prompt: `What currency code do you want to use as the base? Either ${list(codes, 'or')}.`,
+					type: 'string',
+					validate: base => {
+						if (codes.includes(base.toUpperCase())) return true;
+						return `Invalid base, please enter either ${list(codes, 'or')}.`;
+					},
+					parse: base => base.toUpperCase()
+				},
+				{
+					key: 'target',
+					prompt: `What currency code do you want to convert to? Either ${list(codes, 'or')}.`,
+					type: 'string',
+					validate: target => {
+						if (codes.includes(target.toUpperCase())) return true;
+						return `Invalid target, please enter either ${list(codes, 'or')}.`;
+					},
+					parse: target => target.toUpperCase()
+				},
+				{
+					key: 'amount',
+					prompt: 'How much money should be converted? Do not use symbols.',
+					type: 'float'
+				}
+			]
+		});
+	}
+
+	async run(msg, { base, target, amount }) {
+		if (base === target) return msg.say(`Converting ${base} to ${target} is the same value, dummy.`);
+		try {
+			const { body } = await snekfetch
+				.get('http://api.fixer.io/latest')
+				.query({
+					base,
+					symbols: target
+				});
+			return msg.say(`${amount} ${base} is ${amount * body.rates[target]} ${target}.`);
+		} catch (err) {
+			return msg.reply(`Oh no, an error occurred: \`${err.message}\`. Try again later!`);
+		}
+	}
+};

commands/number-edit/math.js

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+const { Command } = require('discord.js-commando');
+const math = require('mathjs');
+
+module.exports = class MathCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'math',
+			aliases: ['calculator', 'calc'],
+			group: 'number-edit',
+			memberName: 'math',
+			description: 'Evaluates a math expression.',
+			args: [
+				{
+					key: 'expression',
+					prompt: 'What expression would you like to evaluate?',
+					type: 'string'
+				}
+			]
+		});
+	}
+
+	run(msg, { expression }) {
+		try {
+			const answer = math.eval(expression).toString();
+			return msg.say(answer).catch(() => msg.reply('Invalid expression.'));
+		} catch (err) {
+			return msg.reply('Invalid expression.');
+		}
+	}
+};

commands/number-edit/temperature.js

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+const { Command } = require('discord.js-commando');
+const { list } = require('../../util/Util');
+const units = ['celsius', 'fahrenheit', 'kelvin'];
+
+module.exports = class TemperatureCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'temperature',
+			aliases: ['temperature-convert', 'convert-temperature', 'temp-convert', 'convert-temp'],
+			group: 'number-edit',
+			memberName: 'temperature',
+			description: `Converts temperatures to/from ${list(units, 'or')}.`,
+			args: [
+				{
+					key: 'base',
+					prompt: `What temperature unit do you want to use as the base? Either ${list(units, 'or')}.`,
+					type: 'string',
+					validate: base => {
+						if (units.includes(base.toLowerCase())) return true;
+						return `Invalid base, please enter either ${list(units, 'or')}.`;
+					},
+					parse: base => base.toLowerCase()
+				},
+				{
+					key: 'target',
+					prompt: `What temperature unit do you want to convert to? Either ${list(units, 'or')}.`,
+					type: 'string',
+					validate: target => {
+						if (units.includes(target.toLowerCase())) return true;
+						return `Invalid target, please enter either ${list(units, 'or')}.`;
+					},
+					parse: target => target.toLowerCase()
+				},
+				{
+					key: 'amount',
+					prompt: 'What temperature should be converted?',
+					type: 'float'
+				}
+			]
+		});
+	}
+
+	run(msg, { base, target, amount }) { // eslint-disable-line consistent-return
+		if (base === target) return msg.say(`Converting ${base} to ${target} is the same value, dummy.`);
+		if (base === 'celsius') {
+			if (target === 'fahrenheit') return msg.say(`${amount}°C is ${(amount * 1.8) + 32}°F.`);
+			if (target === 'kelvin') return msg.say(`${amount}°C is ${amount + 273.15}°K.`);
+		}
+		if (base === 'fahrenheit') {
+			if (target === 'celsius') return msg.say(`${amount}°F is ${(amount - 32) / 1.8}°C.`);
+			if (target === 'kelvin') return msg.say(`${amount}°F is ${(amount + 459.67) * (5 / 9)}°K.`);
+		}
+		if (base === 'kelvin') {
+			if (target === 'celsius') return msg.say(`${amount}°K is ${amount - 273.15}°C.`);
+			if (target === 'fahrenheit') return msg.say(`${amount}°K is ${(amount * 1.8) - 459.67}°F.`);
+		}
+	}
+};