big refactor

lib/cooldowns.js

@@ -3,13 +3,10 @@ module.exports = {
   set: placeOnCooldown
 };
 
-const memcache = require('memcache'),
-  md5 = require('md5'),
-  keyPrefix = 'cd';
-
-const cache = new memcache.Client();
-cache.on('error', console.error);
-cache.connect();
+const NodeCache = require('node-cache');
+const cache = new NodeCache({checkperiod: 1});
+const md5 = require('md5');
+const keyPrefix = 'cd';
 
 // Given a cooldownTime in seconds and a command, returns false if the command is not on cooldown
 // returns the time in seconds until the command will be ready again otherwise
@@ -40,9 +37,9 @@ function isOnCooldown(command, cooldownTime, callback)
 function placeOnCooldown(command, cooldownTime)
 {
   let key = keyPrefix + md5(command);
-  return cache.set(key, Date.now(), handleCacheSet, cooldownTime);
+  return cache.set(key, Date.now(), cooldownTime, handleCacheSet);
 }
 
 function handleCacheSet(error, result) {}
 
-process.on('exit', (code) => {cache.close()});
+process.on('exit', (code) => {cache.close()});