using System;
using System.Collections.Generic;
using System.Threading;
using System.Text;

namespace Lab4
{
    class Program
    {
        static List<Int32> times = new List<Int32>();
        static List<Int32> execTime = new List<Int32>();
        static List<Process> processes = new List<Process>();
        
        static void Main(string[] args)
        {
            Console.Write("Enter number of processes/delays: ");
            
            Int32 res;

            while (!int.TryParse(Console.ReadLine(), out res) || res <= 1 || res > 1000)
                Console.Write("Enter number of processes/delays: ");

            Random rnd = new Random();

            for (int i = 0; i < res; i++)
            {
                if (i == 0)
                    times.Add(0);
                else
                    times.Add(times[i-1] + rnd.Next(6, 12));

                execTime.Add(rnd.Next(3, 10));
            }

            //times.AddRange(new int[] { 0, 6, 12, 18, 24 });//(new int[] { 0, 6, 12, 18 });
            //execTime.AddRange(new int[] { 8, 9, 8, 13, 4 }); //(new int[] { 10, 10, 10, 10 });

            Int32 totalExecTime = 0;

            for (int i = 0; i < times.Count; i++)
            {
                totalExecTime += execTime[i];   // sum exec time
                Console.Write(times[i] + "\t");
                processes.Add(new Process(execTime[i], i)); // add process with exec time and PID
            }

            Console.WriteLine();

            for (int i = 0; i < times.Count; i++)
                Console.Write(execTime[i] + "\t");  // some info

            Console.WriteLine();

            Console.WriteLine("Start FCFS emulating, please wait...");
            FCFS fcfs = new FCFS(execTime.Count);   // new FCFS with specified processes count

            Console.WriteLine("Adding processes...");
            for (int i = 0; i < times.Count; i++)
            {
                //Console.WriteLine("adding proc " + processes[i].PID.ToString()+ " with execTime " + processes[i].executionTime.ToString());
                fcfs.AddProcess(processes[i]);  // add process to fcfs

                if (i == times.Count - 1)   // no more procs
                {
                    Console.WriteLine("There is no next process.\r\nWaiting for current processes emulation ending.");
                    fcfs.EndEmulation();
                }
                else
                {
                    //Console.WriteLine("next proc in " + (times[i+1] - times[i]).ToString() +"\r\n");
                    Thread.Sleep((times[i + 1] - times[i]) * 100);  // sleep to next proc
                }
            }

            Console.ReadKey(true);
            // some info
            Console.WriteLine("\r\nmax queue " + fcfs.maxQueue.ToString());
            Console.WriteLine("avg exec time {0:F2}", 1.0 * totalExecTime / execTime.Count);
            Console.WriteLine("avg idle time {0:F2}", fcfs.avgIdleTime);
            Console.WriteLine("\r\nTo start emulating SPN press any key.");
            Console.ReadKey(true);


            Console.WriteLine("Start SPN emulating, please wait...");
            SPN spn = new SPN(execTime.Count);   // new SPN with specified processes count

            Console.WriteLine("Adding processes...");
            for (int i = 0; i < times.Count; i++)
            {
                //Console.WriteLine("adding proc " + processes[i].PID.ToString()+ " with execTime " + processes[i].executionTime.ToString());
                spn.AddProcess(processes[i]);  // add process to spn

                if (i == times.Count - 1)   // no more procs
                {
                    Console.WriteLine("There is no next process.\r\nWaiting for current processes emulation ending.");
                    spn.EndEmulation();
                }
                else
                {
                    //Console.WriteLine("next proc in " + (times[i+1] - times[i]).ToString() +"\r\n");
                    Thread.Sleep((times[i + 1] - times[i]) * 100);  // sleep to next proc
                }
            }

            Console.ReadKey(true);
            Console.WriteLine("\r\nmax queue " + spn.maxQueue.ToString());
            Console.WriteLine("avg exec time {0:F2}", 1.0 * totalExecTime / execTime.Count);
            Console.WriteLine("avg idle time {0:F2}", spn.avgIdleTime);
            Console.ReadKey(true);
        }
    }
}