Add custom variables to custom message feature

util/customReplaceWithVariables.js

@@ -0,0 +1,23 @@
+const getNickname = require('./getNickname')
+
+module.exports = function(customMessage, message, prefix, globalPrefix){
+
+	let user = message.guild.members.cache.get(message.author.id);
+	let nickname = getNickname(user, message.guild)
+	let username = user.user.username
+	let userID = user.user.id
+	let discriminator =  user.user.discriminator
+	let guildName = message.guild.name
+	let guildID = message.guild.id
+
+	let variables = ["<prefix>", "<globalPrefix>", "<username>", "<nickname>", "<user_id>", "<discriminator>", "<guild_name>", "<guild_id>"]
+	let replacer = [prefix, globalPrefix, username, nickname, userID, discriminator, guildName, guildID]
+
+
+	for (let i = 0; i < variables.length; i++){
+		const regex = new RegExp(variables[i], 'g')
+		customMessage = customMessage.replace(regex, replacer[i])
+	}
+
+	return customMessage
+}