Task51.4

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

namespace Task51
{
    internal class Program
    {
        static void Main(string[] args)
        {
            DataBase dataBase = new DataBase();
            dataBase.Work();
        }
    }

    class DataBase
    {
        private List<Criminal> _criminals;

        public DataBase()
        {
            _criminals = new List<Criminal>();
            _criminals.Add(new Criminal("Лавров","Алексей", "Иванович", true, 160, 65, "Роговин"));
            _criminals.Add(new Criminal("Сидоров", "Виктор", "Андреевич", false, 181, 93, "Перкек"));
            _criminals.Add(new Criminal("Шульц", "Александр", "Измаилович", false, 174, 78, "Коми"));
            _criminals.Add(new Criminal("Варналов", "Николай", "Владимирович", true, 156, 60, "Налак"));
            _criminals.Add(new Criminal("Швалов", "Владимир", "Сергеевич", true, 178, 110, "Новоряк"));
            _criminals.Add(new Criminal("Капустин", "Пётр", "Дмитриевич", true, 192, 98, "Ладык"));
        }

        public void Work()
        {
            int growth;
            int weight;

            string nationality;
            string userInput;
            string requestGrowthWeightNationality =
                "Введите рост, вес и национальность подозреваемого.";
            string requestGrowth =
                "Введите рост: ";
            string requestWeight =
                "Введите вес: ";
            string requestNationality =
                "Введите национальность: ";
            string errorInputData =
                "Ошибка. Вы велли данные некоректно. ";
            string goodbye =
                "До свидания.";
            const string answerExitYes =
                "Да";

            bool isExit = false;

            while (isExit != true)
            {
                Console.WriteLine(requestGrowthWeightNationality);

                Console.Write(requestGrowth);
                growth = UserUtils.GetInt(requestGrowth);

                Console.Write(requestWeight);
                weight = UserUtils.GetInt(requestWeight);

                Console.Write(requestNationality);
                nationality = UserUtils.GetString(requestNationality);

                if (growth == 0 || weight == 0 || nationality == null)
                {
                    Console.WriteLine(errorInputData);
                }
                else
                {
                    var foundPeople = from people in _criminals
                                       where people.Growth <= growth
                                       && people.Weight <= weight
                                       && people.Nationality.ToLower() == nationality.ToLower()
                                       && people.IsCondemned == false
                                       select people;

                    foreach (var people in foundPeople)
                    {
                        people.ShowCriminal();
                    }
                }

                Console.WriteLine(
                    "1 - чтобы выйти.\n" +
                    "Любая другая кнопка, продолжение работы программы.");

                userInput = Console.ReadLine().ToLower();

                if (userInput == answerExitYes)
                {
                    isExit = true;
                    Console.WriteLine(goodbye);
                }
            }
        }
    }

    class Criminal
    {
        private string _surname;
        private string _name;
        private string _middleName;

        public bool IsCondemned { get; private set; }
        public int Growth { get; private set; }
        public int Weight { get; private set; }
        public string Nationality { get; private set; }

        public Criminal(string surname, string name, string middleName, bool isCondemned, int growth, int weight, string nationality)
        {
            _surname = surname;
            _name = name;
            _middleName = middleName;
            IsCondemned = isCondemned;
            Growth = growth;
            Weight = weight;
            Nationality = nationality;
        }

        public void ShowCriminal()
        {
            Console.WriteLine(
                $"ФИО ----------------- {_surname} {_name} {_middleName}\n" +
                $"Заключён под стражу - {IsCondemned}\n" +
                $"Рост ---------------- {Growth}\n" +
                $"Вес ----------------- {Weight}\n" +
                $"Национальность ------ {Nationality}");
        }
    }

    static class UserUtils
    {
        public static int GetInt(string requestInputNumber)
        {
            string errorConversion = "Ошибка,вы вели не цифры! Попробуйте снова.";
            string userInput;

            bool resultConverted = false;

            int number = 0;

            while (resultConverted == false)
            {
                Console.Write(requestInputNumber);
                userInput = Console.ReadLine();

                resultConverted = int.TryParse(userInput, out int numberConvert);

                if (resultConverted != true)
                    Console.WriteLine(errorConversion);
                else
                    number = numberConvert;
            }
            return number;
        }

        public static string GetString(string requestNationality)
        {
            int errorCounter;
            string error =
                "В написании нужно использовать только буквы!";
            string userInput = null;

            bool correctWritten = false;

            while (correctWritten == false)
            {
                errorCounter = 0;

                Console.Write(requestNationality);
                userInput = Console.ReadLine();

                foreach (char symbol in userInput)
                {
                    if (char.IsLetter(symbol) == false)
                    {
                        Console.WriteLine(error);
                        errorCounter++;
                    }
                }

                if (errorCounter == 0)
                {
                    correctWritten = true;
                }
            }
            return userInput;
        }
    }
}