Toppr.js

// Script By PiNaKa30 [https://github.com/PiNaKa30]
// Worked on older platform, untested on newer one !
clear();
var found = 0;

// Add Tutor Name here..
var tutorName = "Shourya";
// Add Your Favourite Classes here..
var classesRequired = ["Class V", "Class VI", "Class VII", "Class VIII", "Class IX", "Class X"];
// Add Subjects you DONT want to take here..
var subjectsNotRequired = [];
// Add Annoying Students here..
var Blacklist = [];

function notifyMe(tut) {
	if (Notification.permission !== "granted")
	    Notification.requestPermission();
	else {
		var notification = new Notification('Toppr Doubt Has Arrived', {
		  icon: 'https://community.toppr.com/static/img/favicon.ico',
		  body: "Hey " + tut + "!\nA student is waiting for you"});
	}

	notification.onclick = function () {
	  window.open("https://community.toppr.com/content/doubts/chat/my-chats/");      
	};
}

var run = setInterval(detectAndClickButton, 200);

function detectAndClickButton() {

	if(found == 1){
		clearInterval(run);
	}

	var parent = document.getElementsByClassName("style__doubt-container___2SF-V style__clr___26B6m");

	for(var i = 0; i < parent.length; ++i) {

		if(found == 1)
			break;

		var doubt = parent[i];
		
		if(doubt != undefined) {
			var studentName = doubt.children[1].children[1].children[0].children[0].innerHTML;
			var studentClass = doubt.children[1].children[2].children[2].innerHTML;
			var studentSubject = doubt.children[1].children[2].children[1].innerHTML;
			console.log(studentName + " (" + studentClass + ") " + studentSubject);

			var ind1 = classesRequired.indexOf(studentClass);
			var ind2 = Blacklist.indexOf(studentName);
			var ind3 = subjectsNotRequired.indexOf(studentSubject);
			if((ind1 != -1) && (ind2 == -1) && (ind3 == -1)){
				doubt.click();
				setTimeout(function() {
					var buttons = document.getElementsByClassName("style__button___1bexT style__button-green___1cJYa");
					buttons[0].click();
					notifyMe(tutorName);
					console.log(buttons[0]);
					found = 1;
				}, 30);
			}			
		}
	}	
}

// Just copy this script and press Enter. Script stops when it finds a doubt.
// After solving the doubt, press up key and Enter to run the script again !