add calculations to counting game

src/handlers/games/counting.js

@@ -2,6 +2,7 @@ const Discord = require("discord.js");
 
 const countSchema = require("../../database/models/countChannel");
 const count = require("../../database/models/count");
+const math = require('mathjs');
 
 module.exports = async (client) => {
   client
@@ -9,11 +10,20 @@ module.exports = async (client) => {
       if (message.author.bot || message.channel.type === Discord.ChannelType.DM) return;
 
       if (
-        isNaN(message.content) ||
         message.attachments.size > 0 ||
         message.type == Discord.MessageType.ChannelPinnedMessage
       )
         return;
+      var content = message.content.toLowerCase();
+      if(isNaN(content)) {
+        try {
+          const result = math.evaluate(content);
+          content = result;
+        } catch (error) {
+          return;
+        }        
+        
+      }
 
       const data = await countSchema.findOne({
         Guild: message.guild.id,
@@ -42,7 +52,7 @@ module.exports = async (client) => {
             console.log(error);
           }
         } else {
-          if (message.content == countData.Count) {
+          if (content == countData.Count) {
             message.react(client.emotes.normal.check);
             countData.User = message.author.id;
             countData.Count += 1;
@@ -68,7 +78,7 @@ module.exports = async (client) => {
           }
         }
       } else if (data) {
-        if (message.content == 1) {
+        if (content == 1) {
           message.react(client.emotes.normal.check);
 
           new count({
@@ -86,7 +96,18 @@ module.exports = async (client) => {
   client
     .on("messageDelete", async (message) => {
       try {
-        if (isNaN(message.content) || message.author.bot) return;
+        if (message.author.bot) return;
+
+        var content = message.content.toLowerCase();
+        if(isNaN(content)) {
+          try {
+            const result = math.evaluate(content);
+            content = result;
+          } catch (error) {
+            return;
+          }        
+          
+        }
 
         const data = await countSchema.findOne({
           Guild: message.guild.id,
@@ -96,10 +117,10 @@ module.exports = async (client) => {
 
         if (data && countData) {
           let lastCount = countData.Count - 1;
-          if (message.content == lastCount) {
+          if (content == lastCount) {
             client.simpleEmbed(
               {
-                desc: `**${message.author.tag}**: ${message.content}`,
+                desc: `**${message.author.tag}**: ${content}`,
               },
               message.channel
             );