/*
Для варіанту завдання створити програму, яка реалізує задану ієрархію класів. Елементами даних і методами кожного класу задатися самостійно. Продемонструвати як похідні класи використовують елементи даних базових класів.
2) службовець, персона, робочий, інженер;

				Person -> Employee -> Engineer
                    \---> Servant
*/
/*
 * Created by SharpDevelop.
 * User: vladyslavbezruk
 * Date: 07.04.2022
 * Time: 22:44
 * 
 * To change this template use Tools | Options | Coding | Edit Standard Headers.
 */
using System;

namespace task_2
{
	class Person
	{
		protected int age;
		protected string name;
		
		public Person()
		{
			age 	= 0;
			name 	= "None";
		}
		
		public Person(int age, string name)
		{
			this.age 	= age;
			this.name 	= name;
		}
		
		public void input(bool flag = false)
		{
			if (flag == false)
			{
				Console.WriteLine("Enter info about person:");
			}
			Console.WriteLine("age:");
			age = Convert.ToInt32(Console.ReadLine());
			Console.WriteLine("name:");
			name = Console.ReadLine();
			
			if (flag == false)
			{
				Console.Write('\n');
			}
		}
		
		public void output(bool flag = false)
		{
			if (flag == false)
			{
				Console.WriteLine("Info about person:");
			}
			Console.WriteLine("age: {0}", age);
			Console.WriteLine("name: " + name);
			
			if (flag == false)
			{
				Console.Write('\n');
			}
		}
		
	}
	
	class Employee : Person
	{
		protected int salary;
		protected string area;
		
		public Employee()
		{
			salary = 0;
			area = "None";
		}
		
		public Employee(int age, string name, int salary, string area) : base(age, name)
		{
			this.salary = salary;
			this.area 	= area;
		}
		
		public void input(bool flag = false)
		{
			if (flag == false)
			{
				Console.WriteLine("Enter info about employee:");
			}
			base.input(true);
			Console.WriteLine("salary:");
			salary = Convert.ToInt32(Console.ReadLine());
			Console.WriteLine("area:");
			area = Console.ReadLine();
			
			if (flag == false)
			{
				Console.Write('\n');
			}
		}
		
		public void output(bool flag = false)
		{
			if (flag == false)
			{
				Console.WriteLine("Info about employee:");
			}
			base.output(true);
			Console.WriteLine("salary: {0}", salary);
			Console.WriteLine("area: " + area);
			
			if (flag == false)
			{
				Console.Write('\n');
			}
		}
	}
	
	class Engineer : Employee
	{
		private int level;
		private string type;
		
		public Engineer() : base()
		{
			level = 0;
			type = "None";
		}
		
		public Engineer(int age, string name, int salary, string area, int level, string type) : base(age, name, salary, area)
		{
			this.level 	= level;
			this.type 	= type;
		}
		
		public void input()
		{
			Console.WriteLine("Enter info about engineer:");
			base.input(true);
			Console.WriteLine("level:");
			level = Convert.ToInt32(Console.ReadLine());
			Console.WriteLine("type:");
			type = Console.ReadLine();
			Console.Write('\n');
		}
		
		public void output()
		{
			Console.WriteLine("Info about engineer:");
			base.output(true);
			Console.WriteLine("level: {0}", level);
			Console.WriteLine("type: " + type);
			Console.Write('\n');
		}
	}
	
	class Servant : Person
	{
		private int yearsService;
		
		public Servant() : base()
		{
			yearsService = 0;
		}
		
		public Servant(int age, string name, int yearsService) : base(age, name)
		{
			this.yearsService = yearsService;
		}
		
		public void input()
		{
			Console.WriteLine("Enter info about servant:");
			base.input(true);
			Console.WriteLine("years service: ");
			yearsService = Convert.ToInt32(Console.ReadLine());
			Console.Write('\n');
		}
		
		public void output()
		{
			Console.WriteLine("Info about servant:");
			base.output(true);
			Console.WriteLine("years service: {0}", yearsService);
			Console.Write('\n');
		}
	}
	
	class Program
	{
		public static void Main(string[] args)
		{
			Person person = new Person();
			Employee employee = new Employee();
			Engineer engineer = new Engineer();
			Servant servant = new Servant();
			
			person.input();
			person.output();
			
			employee.input();
			employee.output();
			
			engineer.input();
			engineer.output();
			
			servant.input();
			servant.output();
		
			// TODO: Implement Functionality Here
			
			Console.Write("Press any key to continue . . . ");
			Console.ReadKey(true);
		}
	}
}