using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        Employee[] employees = {

            new Employee("CEO", "jatin", 23, 200),

            new Employee("CMO", "Harshini", 26, 100),

            new Employee("COO", "Narasinga Rao", 54, 150),

            new Employee("Employee", "Sham", 23, 45),

            new Employee("Intern", "Roy", 19, 20)

        };

        //Add employees to employee dictionary.

        Dictionary<string, Employee> employeeDictionary=new Dictionary<string, Employee>();

        foreach(Employee emp in employees)

        {

         employeeDictionary.Add(emp.Role,emp);

        }

        //Check for the specified key.

        Console.WriteLine("Enter valid key: ");

        string key=Console.ReadLine();

        if(employeeDictionary.ContainsKey(key))

        {

            Employee emp1 = employeeDictionary[key];

            Console.WriteLine("Employee Name: {0} ", emp1.Name);

            Console.WriteLine("Employee Role: {0} ", emp1.Role);

            Console.WriteLine("Employee Age: {0} ", emp1.Age);

            Console.WriteLine("Employee Salary: {0} ", emp1.Salary);

        }

        else

        Console.WriteLine("Entered key does not exsists");

        // To use TryGetValue()

        Console.WriteLine("Enter valid key: ");

        string key2=Console.ReadLine();

        Employee result = null;

        if(employeeDictionary.TryGetValue(key2,out result))

        {   

            Console.WriteLine("Entered key is valid");

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

            Console.WriteLine("Employee Role: {0} ", result.Role);

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

            Console.WriteLine("Employee Salary: {0} ", result.Salary);

        }

        else

        Console.WriteLine("Entered key does not exsists");

        // Dictionary updation

        Console.WriteLine("Enter valid key for updation: ");

        string keyToUpdate=Console.ReadLine();

        if(employeeDictionary.ContainsKey(keyToUpdate))

        {

            employeeDictionary[keyToUpdate] = new Employee("senior Employee", "Sharma", 30, 60);

            Console.WriteLine("{0} Key is updated",keyToUpdate);

        }

        else

        Console.WriteLine("Entered key does not exsists");

        // Dictionary Deletion

        Console.WriteLine("Enter valid key for deletion: ");

        string keyTodelete=Console.ReadLine();

        if(employeeDictionary.Remove(keyTodelete))

        {

            Console.WriteLine("{0} Key is deleted",keyTodelete);

        }

        else

        Console.WriteLine("Entered key does not exsists");

        // Dictionary Printing using for loop

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

        {

          KeyValuePair<string,Employee> keyValuePair = employeeDictionary.ElementAt(i);

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

          Employee employeeValue = keyValuePair.Value;

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

            Console.WriteLine("Employee Role: {0} ", employeeValue.Role);

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

            Console.WriteLine("Employee Salary: {0} ", employeeValue.Salary);

        }

    }

    public class Employee

    {

     public string Role {get; set;}

     public string Name {get; set;}

     public int Age {get; set;}

     public float Rate {get; set;}

     public float Salary 

     {

       get {

           return Rate*8*5*4*12;

       }

     }

     public Employee( string role, string name, int age, float rate)

     {

      this.Role=role;

      this.Name=name;

      this.Age=age;

      this.Rate=rate;

     }

    }

}