using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace Employees

{

    abstract partial class Employee

    {

        public Employee() { }

        public Employee(string name, int id, float pay, string ssn)

            : this(name, 0, id, pay, ssn) { }

        public Employee (string name, int age, int id, float pay, string ssn)

        {

            Name = name;

            ID = id;

            Pay = pay;

            Age = age;

            empSSN = ssn;

        }

        //

        public virtual void GiveBonus(float amount)

        {

            Pay += amount;

        }

        public virtual void DisplayStats()

        {

            Console.WriteLine("Name: {0}", Name);

            Console.WriteLine("ID: {0}", ID);

            Console.WriteLine("Pay: {0}", Pay);

            Console.WriteLine("Age: {0}", Age);

        }

​

        protected BenefitPackage empBenefits = new BenefitPackage();

        public double GetBenefitCost()

        {

            return empBenefits.ComputePayDeduction();

        }

​

        public BenefitPackage Benefits

        {

            get { return empBenefits; }

            set { empBenefits = value; }

        }

        public class BenefitPackage

        {

            public enum BanafitPackageLevel { Sandard, Gold, Platinum}

​

            public double ComputePayDeduction()

            {

                return 125.0;

            }

        }

    }

   partial class Employee

    {

        protected string empName;

        protected int empID;

        protected float currPay;

        protected int empAge;

        protected string empSSN;

        //

        public string Name

        {

            set

            {

                if (value.Length > 15)

                    Console.WriteLine("Error! Name must be less than 16 characters!");

                else

                    empName = value;

            }

            get

            {

                return empName;

            }

        }

​

        public int ID

        {

            get { return empID; }

            set { empID = value; }

        }

​

        public float Pay

        {

            get { return currPay; }

            set { currPay = value; }

        }

​

        public int Age

        {

            get { return empAge; }

            set { empAge = value; }

        }

​

        public string SocialSecurityNumber

        {

            get { return empSSN; }

        }

    }

    sealed class PTSalesPerson : SalesPerson

    {

        public PTSalesPerson(string fullName, int age, int empID, float currPay, string ssn, int numbOfSales) : base (fullName, age, empID, currPay, ssn, numbOfSales)

        {

        }

​

    }

    class SalesPerson : Employee

    {

        public int SalesNumber { get; set; }

​

        public SalesPerson() { }

​

        public SalesPerson(string fullName, int age, int empID, float currPay, string ssn, int numbOfSales) : base (fullName, age, empID, currPay, ssn)

        {

            SalesNumber = numbOfSales;

        }

​

        public override sealed void GiveBonus(float amount)

        {

​

            int salesBonus = 0;

            if (SalesNumber > 0 && SalesNumber <= 100)

                salesBonus = 10;

            else

            {

                if (SalesNumber >= 101 && SalesNumber <= 200)

                    salesBonus = 15;

                else

                    salesBonus = 20;

            }

                base.GiveBonus(amount*salesBonus);

        }

        public override void DisplayStats()

        {

            base.DisplayStats();

            Console.WriteLine("Number of Sales: {0}", SalesNumber);

        }

    }

    class Program

    {

        static void Main(string[] args)

        {

            Console.WriteLine("The Employee Class Hierarchy");

            SalesPerson fred = new SalesPerson();

            fred.Age = 31;

            fred.Name = "Fred";

            fred.SalesNumber = 50;

​

            Manager chucky = new Manager("Chucky", 50, 92, 100000, "333-23-2322", 9000);

            chucky.GiveBonus(300);

            chucky.DisplayStats();

            Console.WriteLine();

​

            SalesPerson fran = new SalesPerson("Fran", 43, 93, 3000, "932-32-3232", 31);

            fran.GiveBonus(200);

            fran.DisplayStats();

            Console.WriteLine();

​

​

            object frank = new Manager("Frank Zappa", 9, 3000, 40000, "111-11-1111", 5);

            Employee moonUnit = new Manager("MoonUnit Zappa", 2, 3001, 20000, "101-11-13121", 1);

            SalesPerson jill = new PTSalesPerson("Jill", 34, 3002, 100000, "111-12-1119", 90);

​

​

            static void GivePromotion(Employee emp)

        {

            Console.WriteLine("{0} was promoted!", emp.Name);

        }

​

            GivePromotion(moonUnit);

            GivePromotion(jill);

    }

    }

}

​