saurav_classObjectTask.html

<script>
	class UserObject {
		id;
		name;
		password;
		fullName;
		accountNumber;
		accountBalance;
		status;

		constructor(
			id,
			name,
			password,
			fullName,
			accountNumber,
			accountBalance,
			status
		) {
			this.id = id;
			this.name = name;
			this.password = password;
			this.fullName = fullName;
			this.accountNumber = accountNumber;
			this.accountBalance = accountBalance;
			this.status = status;
		}
	}

	class MainClass {
		numReg = /^\d+$/;
		id = 101;

		adminList = [
			{ id: 1, name: "saurav", password: 123456, status: 1 },
			{ id: 2, name: "keshav", password: 123456, status: 1 },
		];

		checklen(inp, len) {
			//-------------------------------Check Length--------------------------------------

			var inputString = prompt(inp);
			if (inputString.length < len) {
				inputString = this.checklen(inp, len);
			}
			return inputString;
		}

		checkNum(inp) {
			//-------------------------------Check Number--------------------------------------

			var num = prompt(inp);
			if (!num.match(this.numReg)) {
				num = this.checkNum(inp);
			}
			return parseInt(num);
		}

		login(list) {
			var loginFlag = 0;
			var loginName = this.checklen("Enter your Name: ", 3);
			// ----------------yaha per for loop ko recursion meh kese convert kere...?--------------
			for (var l of list) {
				if (loginName == l.name) {
					loginFlag = 1;
					var loginPassword = this.checklen("Enter your Password: ", 6);
					if (loginPassword == l.password) {
						loginFlag = 2;
						if (l.status == 1) {
							loginFlag = l;
							alert("Login Successfull, Welcome :)");
						}
					}
				}
			}
			return loginFlag;
		}

		userOperation(userObject) {
			//-------------------------------User Operation--------------------------------------

			var userChoice = this.checkNum(
				"What's your user role ? \n1. WithDraw \n2. Deposit \n3. Show Balance \n4. Exit"
			);
			switch (userChoice) {
				case 1:
					//-------------------------WithDraw------------------------------
					var withDrawAmount = this.checkNum("Enter WithDraw Amount: ");
					if (userObject.accountBalance < withDrawAmount) {
						alert("Insufficient Balance!");
					} else {
						userObject.accountBalance -= withDrawAmount;
						alert("WithDrawed Successfully, \nAmount has been debited!");
					}
					break;

				case 2:
					//---------------------------Deposit------------------------------
					var depositAmount = this.checkNum("Enter Deposit Amount: ");
					userObject.accountBalance += depositAmount;
					alert("Deposited Successfully, \nAmount has been credited!");
					break;

				case 3:
					//-------------------------Show Balance------------------------------
					alert(
						"Account Number= " +
							userObject.accountNumber +
							"\nAccount Balance= " +
							userObject.accountBalance
					);
					break;

				case 4:
					alert("Thank You!");
					return;
					break;

				default:
					alert("Please select appropriate choice. Thank You!");

					break;
			}
			this.userOperation(userObject);
		}

		user(list) {
			//--------------------------------User---------------------------------------

			var flag = this.login(list);

			if (flag == 0) {
				alert("Invalid User Name !!!");
			} else if (flag == 1) {
				alert("Wrong Password !!!");
			} else if (flag == 2) {
				alert("Sorry!!! You're not been approved yet!!");
			} else {
				this.userOperation(flag);
			}
		}

		viewData(list) {
			//-------------------------------View--------------------------------------
			var outputString = "";
			for (var v of list) {
				outputString +=
					"User Id: " +
					v.id +
					" - " +
					"User Name: " +
					v.name +
					" - " +
					"Full Name: " +
					v.fullName +
					"\n.Account Number: " +
					v.accountNumber +
					" - " +
					"Account Balance: " +
					v.accountBalance +
					" - " +
					"Status: " +
					v.status +
					"\n\n";
			}
			alert(outputString);

			// --------------for console the data------------
			for (var k of list) {
				console.log(
					k.id +
						" - " +
						k.name +
						" - " +
						k.password +
						" - " +
						k.fullName +
						" - " +
						k.accountNumber +
						" - " +
						k.accountBalance +
						" - " +
						k.status
				);
			}
		}

		manageUser(list) {
			//-----------------------Manage User---------------------
			this.viewData(list);
			var flag = -1;

			var approvalId = this.checkNum(
				"Which user you want to approve ? \n(Please enter the User Id): "
			);

			for (var i of list) {
				if (approvalId == i.id && i.status == 0) {
					flag = 0;
					i.status = 1;
					var result = "";
					for (var j = 0; j < 16; j++) {
						result += Math.floor(Math.random() * 10);
					}
					i.accountNumber = result;
					alert("User Approved. Thank You!");
					break;
				} else if (approvalId == i.id && i.status == 1) {
					flag = 1;
					alert("User has been already Approved. Thank You!");
				}
			}
			if (flag == -1) {
				alert("Invalid User Id, Please enter a valid User Id!!");
			}
		}

		adminOperation(list) {
			var adminChoice = this.checkNum(
				"What's your user role ? \n1. Manage User \n2. Exit"
			);

			switch (adminChoice) {
				case 1:
					this.manageUser(list);
					break;

				case 2:
					alert("Thank you!");
					return;
					break;

				default:
					alert("Please select appropriate choice. Thank You!");

					break;
			}
			this.adminOperation(list);
		}

		admin(list) {
			//---------------------------Admin---------------------------------------

			var adminFlag = this.login(this.adminList);
			if (adminFlag == 0) {
				alert("Invalid Admin Name !!!");
			} else if (adminFlag == 1) {
				alert("Invalid Admin Password !!!");
			} else {
				this.adminOperation(list);
			}
		}

		visitor(list) {
			//------------------------------Visitor--------------------------------------

			var name = this.checklen(
				"Enter the username: \nEnter atleast 3 chars",
				3
			);
			var password = this.checklen(
				"Enter the password: \nEnter atleast 6 chars",
				6
			);
			var fullName = this.checklen(
				"Enter the full name: \nEnter atleast 5 chars",
				5
			);
			var status = 0;
			var accountNumber = "0";
			var accountBalance = 0;
			var dummy = new UserObject(
				this.id++,
				name,
				password,
				fullName,
				accountNumber,
				accountBalance,
				status
			);
			list.push(dummy);
			alert("User data added successfully !!!");
			return list;
		}

		main(list) {
			var choice = this.checkNum(
				"What's your user role ? \n1. Visitor \n2. Admin \n3. User \n4. Exit"
			);

			switch (choice) {
				case 1:
					list = this.visitor(list);
					break;

				case 2:
					this.admin(list);
					break;

				case 3:
					this.user(list);
					break;

				case 4:
					alert("Thank you! for visiting our system...");
					return;
					break;

				default:
					alert("Please select appropriate choice. Thank You!");

					break;
			}
			this.main(list);
		}
	}

	var userData = [];
	var task = new MainClass();
	task.main(userData);
</script>