/*
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);
        }
    }
}