Task - 41

using System;
using System.Collections.Generic;
using System.Linq;

namespace LinqTrain
{
    class Program
    {
        public static void Main()
        {
            new Hospital().Work();
        }
    }
    public static class RandomStatic
    {
        static private Random _rand = new Random();
        static public int GetNext(int min, int max)
        {
            return _rand.Next(min, max);
        }
    }
    class FullName
    {
        public string Name { get; private set; }
        public string Surname { get; private set; }
        public string Patronymic { get; private set; }
        public FullName()
        {
            Name = new string[] { "Август", "Богдан", "Ваня", "Георгий", "Данил", "Женя" }[RandomStatic.GetNext(0, 6)];
            Surname = new string[] { "ЛУчников", "Захарчев", "Зайцев", "КУзнецов", "Столяров", "Коробничиков" }[RandomStatic.GetNext(0, 6)];
            Patronymic = new string[] { "Сергеевич", "Андреевич", "Саавич", "Арсеневич" }[RandomStatic.GetNext(0, 4)];
        }
        public string GetInfo()
        {
            return $"{Surname} {Name} {Patronymic}:";
        }
    }
    class Hospital
    {
        private List<Patient> _patients = new List<Patient>();
        public Hospital()
        {
            for (int i = 0; i < 30; i++)
            {
                _patients.Add(new Patient());
            }
        }
        public void Work()
        {
            bool isOpen = true;
            while (isOpen)
            {
                Console.Clear();
                Console.WriteLine("1 - Сортировка и вывод пациентов по ФИО \n2 - сортировка и вывод пациентов по возрасту \n3 - вывод пациентов по болезни");
                switch (Console.ReadKey().Key)
                {
                    case ConsoleKey.D1:
                        SortByFullName();
                        break;
                    case ConsoleKey.D2:
                        SortByAge();
                        break;
                    case ConsoleKey.D3:
                        SortByDisease();
                        break;
                    case ConsoleKey.Escape:
                        isOpen = false;
                        break;
                }
            }
        }
        private void SortByFullName()
        {
            Console.Clear();
            List<Patient> sortList = _patients.OrderBy(patients => patients.FullName.GetInfo()).ToList<Patient>();
            int count = 0;
            foreach (var item in sortList)
            {
                Console.WriteLine($"{count}: {item.GetInfo()}");
                count++;
            }
            Console.ReadKey();
        }
        private void SortByAge()
        {
            Console.Clear();
            var sortList = _patients.OrderBy(patients => patients.Age);
            int count = 0;
            foreach (var item in sortList)
            {
                Console.WriteLine($"{count}: {item.GetInfo()}");
                count++;
            }
            Console.ReadKey();
        }
        private void SortByDisease()
        {
            Console.Clear();
            Console.Write("Введите название болезни: ");
            string disease = Console.ReadLine();
            var sortList = _patients.Where(patient => patient.Disease.ToLower() == disease.ToLower());
            int count = 0;
            foreach (var item in sortList)
            {
                Console.WriteLine($"{count}: {item.GetInfo()}");
                count++;
            }
            Console.ReadKey();
        }
    }
    class Patient
    {
        public FullName FullName { get; private set; }
        public int Age { get; private set; }
        public string Disease { get; private set; }

        public Patient()
        {
            FullName = new FullName();
            Disease = new string[] { "ОРВИ", "Грипп", "Пнемония", "Ковид", "Перелом" }[RandomStatic.GetNext(0, 5)];
            Age = RandomStatic.GetNext(5, 75);
        }
        public string GetInfo()
        {
            return $"{FullName.GetInfo()} Возраст={Age}; Заболевание={Disease}";
        }
    }
}