using System;

namespace StructConsole
{
    class Worker
    {
        private string Name;
        private int Year;
        private byte Month;


        public Worker()
        {
            Name = "Trener V. J.";
            Year = DateTime.Now.Year;
            Month = (byte)DateTime.Now.Month;
        }

        public Worker(string name, int year, byte month)
        {
            SetName(name);
            SetYear(year);
            SetMonth(month);
        }

        public Worker(string name, int year)
        {
            SetName(name);
            SetYear(year);
            SetMonth((byte)DateTime.Now.Month);
        }

        public Worker(Worker copy)
        {
            Name = copy.Name;
            Year = copy.Year;
            Month = copy.Month;
        }

        public void SetName(string name)
        {
            if(name.Length > 0)
                Name = name;
        }

        public void SetYear(int year)
        {
            if (year > 2000 && year < 2019)
                Year = year;
        }

        public void SetMonth(byte month)
        {
            if (month > 0 && month < 13)
                Month = month;
        }


        public string GetName()
        {
            return Name;
        }

        public int GetYear()
        {
            return Year;
        }

        public byte GetMonth()
        {
            return Month;
        }
    }

    class Company
    {
        private string Name;
        private string Position;
        private int Salary;
        public Worker NewWorker;
        public Company()
        {
            Name = "Valve";
            Position = "Cashhunter";
            Salary = 1234567;
        }

        public Company(string position, int salary)
        {
            Name = "Valve";
            Position = position;
            Salary = salary;
        }

        public Company(string name, string position, int salary)
        {
            Name = name;
            Position = position;
            Salary = salary;
        }

        public Company(Company copy)
        {
            Name = copy.Name;
            Position = copy.Position;
            Salary = copy.Salary;
        }

        public void SetName(string name)
        {
            if(name.Length > 0)
                Name = name;
        }

        public void SetPosition(string position)
        {
            if(position.Length > 0)
                Position = position;
        }

        public void SetSalary(int salary)
        {
            if (salary > 0 && int.TryParse(Console.ReadLine(), out salary))
                Salary = salary;
            else
                Console.WriteLine("Enter another value!");
        }

        public string GetName()
        {
            return Name;
        }

        public string GetPosition()
        {
            return Position;
        }

        public int GetSalary()
        {
            return Salary;
        }

        public void SetWorker(string name, int year, byte month)
        {
            NewWorker.SetName(name);
            NewWorker.SetYear(year);
            NewWorker.SetYear(month);
        }

        public int GetWorkExperience(Company copy)
        {
            DateTime YourYear = new DateTime(copy.NewWorker.GetYear());
            DateTime Today = new DateTime(DateTime.Now.Year);
            int res = Convert.ToInt32((Today - YourYear));
            return res / 12;
        }

        public int GetTotalMoney(Company copy)
        {
            return copy.GetSalary() * NewWorker.GetMonth();
        }
    }

    class Program
    {
        static void StopMech()
        {
            Console.ForegroundColor = ConsoleColor.White;
            Console.WriteLine("Press enter to continue...");
            Console.ReadKey();
        }
        static void CheckInputData(out int n, string phrase)
        {
            bool flag = true;
            do
            {
                Console.Write(phrase);
                if(!Int32.TryParse(Console.ReadLine(), out n))
                {
                    flag = false;
                    Console.ForegroundColor = ConsoleColor.DarkRed;
                    Console.WriteLine("Error404. Try to enter again!");
                }
            } while (!flag);
        }
        public static Worker[] ReadAllWorkers()
        {
            int len;
            string lenPhrase = "Enter worker's amount: ";
            CheckInputData(out len, lenPhrase);
            Worker[] workers = new Worker[len];
            for (int i = 0; i < workers.Length; i++)
            {
                Console.ForegroundColor = ConsoleColor.DarkMagenta;
                Console.WriteLine("~ ~ ~ ~ WORKER #{0} ~ ~ ~ ~", i + 1);
                workers[i] = ReadWorker();
            }
            return workers;
        }

        public static Worker ReadWorker()
        {
            Worker worker = new Worker();
            Console.Write("Enter worker's surname and initials: ");
            worker.SetName(Console.ReadLine());
            int year;
            string yearPhrase = "Enter worker's experience (years): ";
            CheckInputData(out year, yearPhrase);
            worker.SetYear(year);
            //worker.SetYear(Convert.ToInt32(Console.ReadLine()));
            int month;
            string monthPhrase = "Enter the month worker started working: ";
            CheckInputData(out month, monthPhrase);
            worker.SetMonth((byte)month);
            ReadCompany();
            return worker;
        }

        public static Company ReadCompany()
        {
            Company company = new Company();
            Console.ForegroundColor = ConsoleColor.DarkBlue;
            Console.Write("Enter company name: ");
            company.SetName(Console.ReadLine());
            Console.Write("Enter worker's position in company: ");
            company.SetPosition(Console.ReadLine());
            int salary;
            string salaryPhrase = "Enter worker's salary: ";
            CheckInputData(out salary, salaryPhrase);
            return company;
        }

        public static void PrintCompany(Company company)
        {
            Console.ForegroundColor = ConsoleColor.White;
            Console.Write("Company: ");
            Console.ForegroundColor = ConsoleColor.DarkGreen;
            company.GetName();
            Console.ForegroundColor = ConsoleColor.White;
            Console.Write("Position: ");
            Console.ForegroundColor = ConsoleColor.DarkGreen;
            company.GetPosition();
            Console.Write("Salary: ");
            Console.ForegroundColor = ConsoleColor.DarkGreen;
            company.GetSalary();
        }

        public static void PrintWorker(Worker worker)
        {
            Company company = new Company();
            Console.ForegroundColor = ConsoleColor.DarkYellow;
            Console.Write("Worker's name: ");
            Console.ForegroundColor = ConsoleColor.Blue;
            worker.GetName();
            Console.ForegroundColor = ConsoleColor.DarkYellow;
            Console.Write("Worker's experience: ");
            Console.ForegroundColor = ConsoleColor.Blue;
            worker.GetYear();
            Console.ForegroundColor = ConsoleColor.DarkYellow;
            Console.Write("Worker works since: ");
            Console.ForegroundColor = ConsoleColor.Blue;
            worker.GetMonth();
            PrintCompany(company);
        }

        public static void PrintWorkers(Worker[] workers)
        {
            for (int i = 0; i < workers.Length; i++)
            {
                Console.WriteLine("- - - - WORKER #{0} - - - -", i + 1);
                PrintWorker(workers[i]);
            }
            StopMech();
        }

        public void GetWorkersInfo(Worker[] workers, out int highest, out int lowest)
        {
            Console.Clear();
            int highest = int.MinValue, lowest = int.MaxValue;
            for (int i = 0; i < workers.Length; i++)
            {
                if()
            }
        }

        public int SortWorkersBySalary(Worker a, Worker b)
        {
            Company company = new Company();
            double avgB = company.GetWorkExperience(company);
            double avgA = company.GetWorkExperience(company);
            if (avgA > avgB)
                return 1;
            if (avgA < avgB)
                return -1;
            return 0;
        }

        public int SortWorkersByExperience(Worker a, Worker b)
        {
            DateTime fstDateA = new DateTime(a.GetYear());
            DateTime sndDateB = new DateTime(b.GetYear());
            return DateTime.Compare(fstDateA, sndDateB);
        }

        static void Menu()
        {
            Console.Title = "Лабораторна робота №5";
            Console.ForegroundColor = ConsoleColor.White;
            Console.WriteLine("~ ~ ~ ~ MENU ~ ~ ~ ~");
            Console.ForegroundColor = ConsoleColor.Cyan;
            Console.WriteLine("1. Add workers;\n2. Show all workers;\n3. Show the HIGHEST and LOWEST salaries;\n4. Sort workers by SALARY;\n5. Sort workers by EXPERIENCE");
        }
        static void Main(string[] args)
        {
            ConsoleKeyInfo hotKey;
            int len = 0; //highest, lowest;
            Worker[] workers = new Worker[len];
            do
            {
                Menu();
                hotKey = Console.ReadKey();
                switch(hotKey.Key)
                {
                    case ConsoleKey.D1: // Add worker
                        workers = ReadAllWorkers();
                        len = workers.Length;
                        break;
                    case ConsoleKey.D2: // Show all workers
                        PrintWorkers(workers);
                        break;
                    case ConsoleKey.D3: // Show the highest and lowest salary

                        break;
                    case ConsoleKey.D4: // Sort workers by salary
                        break;
                    case ConsoleKey.D5: // Sort workers by experience
                        break;
                    case ConsoleKey.D0:
                        Console.Clear();
                        Console.ForegroundColor = ConsoleColor.Green;
                        Console.WriteLine("See you later!");
                        Environment.Exit(0);
                        break;
                }
            } while (true);
        }
    }
}