Updated directory structure

Author: Minimini20

Automation/src/Codeforces_automatic_contest_notifier/codeforces.js

@@ -1,3 +1,7 @@
+// CodeForces - Contest Notifier: This tool first logs in to your CodeForces id and then registers to all the contests available at the moment for you.
+// It also scrapes the already registered and upcoming contests' data and notifies you of the dates and time of all contests through a text via Whatsapp Web.
+// Tech-Stacks : JavaScript, HTML, CSS, puppeteer
+
 const pup = require("puppeteer");
 let fs = require('fs');
 let email = ""; //type in your email and password to use automatic contest notifier
@@ -12,22 +16,22 @@ async function main(){
     let pages = await browser.pages();// browser ke andar opened tabs ko ek array mien leke aana
     tab = pages[0];
     await tab.goto(url);
-    await tab.waitForSelector(".menu-list.main-menu-list",{visible:true});
+    await tab.waitForSelector(".menu-list.main-menu-list",{visible:true});// wait for a css selector to load on page
     let list = await tab.$$(".menu-list.main-menu-list li a");
     let contest = list[2];
     let contestUrl = await tab.evaluate(function(ele){
         return ele.getAttribute("href");
     },contest);
-    await tab.goto("https://codeforces.com"+contestUrl);
+    await tab.goto("https://codeforces.com"+contestUrl);// goes to codeforces main site
     await tab.waitForSelector(".lang-chooser",{visible:true,setTimeout:2000});
     let enterRegister = await tab.$$(".lang-chooser a");
     let enter = enterRegister[2];
     let enterHref = await tab.evaluate(function(ele){
-        return ele.getAttribute("href");
+        return ele.getAttribute("href"); // gets hyperlink address
     },enter);
     await tab.goto("https://codeforces.com"+enterHref);
     await tab.waitForSelector("#handleOrEmail",{visible:true,setTimeout:2000});
-    await tab.type("#handleOrEmail",email);
+    await tab.type("#handleOrEmail",email); // types in email password asynchronusly
     await tab.type("#password",password);
     await tab.click("input[value='Login']");
     await tab.waitForSelector("div[style='background-color: white;margin:0.3em 3px 0 3px;position:relative;']",{visible:true,setTimeout:2000});
@@ -47,6 +51,7 @@ async function main(){
             registerUrls.push("https://codeforces.com"+hrefCalc);
         }
         else{
+            //creating data of contests and their timings
             let data = {};
             let text = await columns[columns.length-2].$(".countdown");
             let innerText = await tab.evaluate(function(ele){
@@ -67,6 +72,7 @@ async function main(){
             if(month<10){
                 month="0"+month;
             }
+            //extracting date time etc. from the contest timeline
             if(innerText.includes("days")|| innerText.includes("day")){
                let numberOfDaysToAdd = parseInt(innerText.split(" ")[0]) ; 
                //console.log(numberOfDaysToAdd);
@@ -111,13 +117,15 @@ async function main(){
     setTimeout(()=>{
 
     },2000);
+    //goes to whatsapp web to send in notification
     await tab.goto("https://web.whatsapp.com/");
     await tab.waitForSelector("._13NKt.copyable-text.selectable-text",{visible:true});
-    await tab.type("._13NKt.copyable-text.selectable-text","Tattu Bear");
-    await tab.keyboard.press("Enter");
+    await tab.type("._13NKt.copyable-text.selectable-text","Tattu Bear"); // type in contact name to send in the whatsapp msg
+    await tab.keyboard.press("Enter"); // keypress
     await tab.waitForSelector("div[tabindex='-1']",{visible:true,setTimeout:3000});
     let readData = fs.readFileSync("contests.json","utf-8");
     let lines = readData.split(",");
+    //reading the data file to type in contest details
     for(let j in lines){
         let ans = "";
         let chars = lines[j];