Update humidity.js

humidity.js

 const Discord = require("Discord.js");
-const config = require('./config.json');
+const config = require('./config.json'); // This includes the discord Token. Which is required to lock on.
 const client = new Discord.Client;
 const fs = require("fs");
 const MongoClient = require('mongodb').MongoClient;
-const uri = "mongodb+srv://Sam:assignment@cluster0.issnm.mongodb.net/enclosure?retryWrites=true&w=majority";
+const uri = "mongodb+srv://Sam:assignment@cluster0.issnm.mongodb.net/enclosure?retryWrites=true&w=majority"; // this contains the password to the cluster specifically. 
 const mongoClient = new MongoClient(uri, { useNewUrlParser: true }); 
-const currentTime = new Date();
+const currentTime = new Date(); // date in unix epoch time.
 var intervalID = setInterval(checkData, 60000);
 client.once('ready', () => {
   console.log("I'm logged on!");
 });
 client.on('message', async message => {
-if (!message.content.startsWith('!') || message.author.bot) return
+if (!message.content.startsWith('!') || message.author.bot) return // otherwise, a bot might constantly message itself.
 const command = message.content.toLowerCase();
 switch(command) {
 case "!report":
@@ -83,7 +83,7 @@ async function checkData(flag){ // if flagged, the code simply sends the current
 function sendToUser(person, temperature, humidity){
   person.send("Temperature of the enclosure is currently " + temperature + "C, humidity is: " + humidity + "%");
 }
-function alertHumidity(person, humidity, tooHumid) {
+function alertHumidity(person, humidity, tooHumid) { // tooHumid defaults to false.
   if (tooHumid) {
     person.send("Sir, your enclosure is too humid. It is currently " + humidity + "%");
   }
@@ -100,7 +100,7 @@ else {
 }
 }
 async function insertIntoMongo(enclosureData){
-  const user = await client.users.fetch("226082168294735872");
+  const user = await client.users.fetch("226082168294735872"); // this is my own Discord ID, required to make it contact me directly.
   try {
   const thisSession = await mongoClient.connect(); // returns a promise to connect
   const database = thisSession.db("enclosure");