//Rafaye Khan

//December 7th 2020

//The goal of this program is to make an Employee Records program. Esentially using Lists and sublists, A user should be able to add as many employee's as they want with information such as First name, Last name, date and salary. 

// Moreover, each employee that's added will be assigned an ID value. This will be needed as the user will also be able to remove an employee from the database using simply their pre assigned ID. 

//The user will also be able to display the list of employee's in the data base whenever they wish.

​

using System;

using System.Collections.Generic;

​

​

    public class Program

    {

        public static void Main(string[] args)

        {

            bool run = true; // This boolean value is going to be used for the while loop so if the user inputs information that is invalid for the program then it can be used to break the program or loop around again

             List <List<string>> myList = new List<List<string>>(); // This is the main list that will be used to store all 4 pieces of information that is encompassed by a sublist (declared as a string)

             List<string> subList = new List<string>();

            int choice; //This integer value is used to determine user choice wether he wants to add remove or list the amount of employees

            while (run == true) { //This is where the while loop starts and will loop back around

           Console.WriteLine(" ********************* \n Select {1} if you'd like to Add an employee \n Select {2} if you'd like to remove an employee \n Select {3} if you'd like to display the List of employees \n *********************"); //Output asking user for what he'd like to do 

           choice = int.Parse(Console.ReadLine()); //The choice variable will equal whatever the user inputs

            if (choice == 1) { //If the user choice input is 1 then this line of code below will be excecuted

            Console.Write("Please enter the ID of the employee: "); //

            String id = Console.ReadLine();

            Console.Write("Please enter the first name of the employee: ");

            String fname = Console.ReadLine();

            Console.Write("Please enter the last name of the employee: ");

            String lname = Console.ReadLine();

            Console.WriteLine("Please enter the annual salary ");

            String salary = Console.ReadLine();

            Console.WriteLine("Please enter the start date in this format dd/mm/yyyy: ");

            String date = Console.ReadLine();

            myList.Add(new List<string> {id, fname,lname, salary, date });

            }

            else if (choice == 2) {

            Console.WriteLine("What is the employee's ID number?: ");

            String IDNum = Console.ReadLine();

            for (int i = 0; i< myList.Count; i++)

            {

                if (IDNum == myList[i][0])

                {

                    myList.RemoveAt(i);

                }

            }

            }

            else if (choice == 3) {

                for (int i = 0; i < myList.Count; i++) {

                      for (int j = 0; j < 5; j++) {

                          Console.WriteLine(myList[i][j] + " ");

                      }

                }

            }

            else {

                Console.WriteLine("Goodbye!");

            }

            }

}

    }