using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;

namespace ConsoleApp2
{
    class Kolejka<T>
    {
        private T[] tablica;
        private int head, tail;
        private bool start = true;
        public Kolejka(int rozmiar)
        {
            tablica = new T[rozmiar];
        }

        public Kolejka()
        {
            tablica = new T[10];
        }

        public void DodajListe(T[] tab)
        {
            int count = 0;
            foreach(var el in tab)
            {
                if (Dodaj(el))
                    count++;
            }
            Console.WriteLine("Dodano "+count+" elementow");
        }

        public bool Dodaj(T element)
        {
            if (CzyPelna())
                return false;

            tablica[tail] = element;
            tail = (tail + 1) % tablica.Length;
            if (start)
                start = false;

            return true;
        }

        public void Usun()
        {
            if (CzyPusta())
                return;

            if ((head+1) % tablica.Length == ((tail) % tablica.Length))
            {
                head = tail = 0;
                start = true;
            }
            else
            {
                head = (head + 1) % tablica.Length;
            }
        }

        public bool CzyPusta()
        {
            if (CzyPelna())
                return false;

            if ((tail) % tablica.Length == (head) % tablica.Length && !start || start)
            {
                return true;
            }
            return false;
        }

        public void Drukuj()
        {
            int i = 0;
            Console.WriteLine("Head:"+head +" Tail:"+tail);
            foreach(T f in tablica)
            {
                Console.WriteLine("["+i+"] "+f);
                i++;
            }
            Console.WriteLine();
        }

        public void Status()
        {
            Console.WriteLine("Head == "+head);
            Console.WriteLine("Tail == " + tail);
            Console.WriteLine("Pusta? == " + CzyPusta());
            Console.WriteLine("Pelna? == "+ CzyPelna());
        }

        /*
        head = 0 tail = 0
        head = 0 tail = 1
        head = 0 tail = 2
        head = 0 tail = 3//tablica full*/



        public bool CzyPelna()
        {
            if ((tail) % tablica.Length == (head) % tablica.Length && !start)
            {
                return true;
            }


            return false;
        }

    }
}