using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Diagnostics;

namespace Zadatak2_Pokloni_
{
    class Program
    {
        static readonly object locker = new object();
        static readonly object locker1 = new object();
        static int red1 = 0;
        static int red2 = 0;
        static int red3 = 0;
        static int red4 = 0;
        static int ukupanBrojArtikla = 0;
        static int k = 1;
        static int brojKupaca = 0;


        static void KasaBrza1(int brojac)
        {
                Console.WriteLine("Stao je na brzu kasu1");
            Dodaj(brojac);
                Thread.Sleep((100 * brojac));
            Smanjivac(brojac);

        }
        static void KasaBrza2(int brojac)
        {

                Console.WriteLine("Stao je na brzu kasu 2");

            Dodaj(brojac);
            Thread.Sleep((100 * brojac));
            Smanjivac(brojac);
        }
        static void KasaObicna1(int brojac)
        {
                Console.WriteLine("Stao je na obicnu kasu1");
            Dodaj(brojac);
            Thread.Sleep((100 * brojac));
            Smanjivac(brojac);
        }
        static void Smanjivac(int red)
        {
            lock(locker)
            {
                if (red == 1)
                {
                    red1--;
                }
                if (red == 2)
                {

                    red2--;
                }
                if (red == 3)
                {

                    red3--;
                }
                if (red == 4)
                {

                    red4--;
                }
            }
        }
        static void Dodaj(int red)
        {
            lock (locker1)
            {
                if (red == 1)
                {
                    red1++;
                }
                if (red == 2)
                {
                    red2++;
                }
                if (red == 3)
                {
                    red3++;
                }
                if (red == 4)
                {
                    red4++;
                }
            }
        }
        static void KasaObicna2(int brojac)
        {
                Console.WriteLine("Stao je na obicnu kasu 2");
            Dodaj(brojac);
            Thread.Sleep((100 * brojac));
            Smanjivac(brojac);
        }
        static int minimal()
        {
            int[] niz = new int[4];niz[0] = red1;niz[1] = red2;niz[2] = red3;niz[3] = red4;
            int min = niz[0];
            for(int i=0;i<4;i++)
            {
                if (niz[i] < min)
                {
                    min = niz[i];
                }
            }
            if (min == niz[0])
                return 1;
            else if (min == niz[1])
                return 2;
            else if (min == niz[2])
                return 3;
            else if (min == niz[3])
                return 4;
            else return 50;
        }
        static void stoperica()
        {
            Stopwatch stoperica = new Stopwatch();
            stoperica.Start();
            Thread.Sleep(20000);
            stoperica.Stop();
            k++;
        }
        static void Work()
        {

                Random r = new Random();
                int brojac = (r.Next(1,10));
                int brojNajmanjihUredu = minimal();
                ukupanBrojArtikla += brojac;

                if (brojac <= 5 && brojNajmanjihUredu == 1)
                {
                Console.WriteLine(brojac);
                KasaBrza1(brojac);
                }
                if (brojac <= 5 && brojNajmanjihUredu == 2)
            {
                Console.WriteLine(brojac);
                KasaBrza2(brojac);
                }
                if (brojac > 5 && brojNajmanjihUredu == 3)
                {
                Console.WriteLine(brojac);
                KasaObicna1(brojac);
                }
                if (brojac > 5 && brojNajmanjihUredu == 4)
                {
                Console.WriteLine(brojac);
                KasaObicna2(brojac);
                }
            if(ukupanBrojArtikla>=400)
            {
                k++;
            }

        }
        static void Main(string[] args)
        {

            Thread Stoperica1 = new Thread(() => stoperica());
            Stoperica1.Start();
            while(k==1)
            {
                Thread nit = new Thread(() => Work());
                nit.Start();
                brojKupaca++;
                Thread.Sleep(150);

            }
            Console.ReadLine();
            Console.WriteLine(ukupanBrojArtikla);
            Console.WriteLine(brojKupaca);
            Console.WriteLine(ukupanBrojArtikla/brojKupaca);
        }
    }
}