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

namespace Service
{
    class Program
    {
        static void Main(string[] args)
        {
            ServiceMenu menu = new ServiceMenu();
            menu.Run();
        }
    }

    class ServiceMenu
    {
        private AutoService _autoService;
        private Shop _shop;

        public ServiceMenu()
        {
            _autoService = new AutoService();
            _shop = new Shop();
        }

        public void Run()
        {
            while(_autoService.IsServiceWork())
            {
                Show();

                if(ChooseItem())
                {
                    TryCreateNewClient();
                    _shop.TryRefreshProducts();
                }
                else
                {
                    return;
                }

                Console.ReadKey();
                Console.Clear();
            }
        }

        public void Show()
        {
            _autoService.ShowBalance();
            Console.WriteLine();
            _autoService.ShowWarehouse();
            Console.WriteLine();
            _autoService.ShowBreakages();

            Console.WriteLine("\n[1] - приступить к починке\n" +
                "[2] - Заказать деталь в магазине\n" +
                "[3] - выход");
            Console.Write("Ввод: ");
        }

        private bool ChooseItem()
        {
            switch (Console.ReadLine())
            {
                case "1":
                    _autoService.ChooseBrokenDetail();
                    break;
                case "2":
                    _autoService.SignContract(_shop);
                    break;
                case "3":
                    return false;
                default:
                    Console.WriteLine("Ошибка комманды!");
                    break;
            }
            return true;
        }

        private void TryCreateNewClient()
        {
            if (_autoService.IsCarRepaired)
            {
                _autoService.CreateNewClient();
            }
        }
    }

	class AutoService
    {
        private DetailWarehouse _detailsWarehouse;
        private Car _clientCar;
        private int _fine;

        public int WorkCost { get; private set; }
        public int Balance { get; private set; }
        public bool IsBalanceNegaive
        {
            get
            {
                return Balance <= 0;
            }
        }
        public bool IsWarehouseEmpty
        {
            get
            {
                return _detailsWarehouse.IsSpaceDetailsEmpty();
            }
        }
        public bool IsCarRepaired
        {
            get
            {
                return _clientCar.IsDetailsBroken() == false;
            }
        }

        public AutoService()
        {
            _detailsWarehouse = new DetailWarehouse();
            _clientCar = new Car();
            Balance = 2500;
            WorkCost = 5000;
            _fine = 2500;
        }

        public bool IsServiceWork()
        {
            if (IsWarehouseEmpty)
            {
                Console.WriteLine("Запасов больше нет! Закрываем гараж.");
                return false;
            }

            if(IsBalanceNegaive)
            {
                Console.WriteLine("Отрицательный баланс! Закрываем гараж.");
                return false;
            }
            return true;
        }

        public void ShowBalance()
        {
            Console.WriteLine($"Баланс: {Balance}");
        }

        public void ShowBreakages()
        {
            _clientCar.ShowBrokenDetails();
        }

        public void ChooseBrokenDetail()
        {
            Console.WriteLine("Выберите деталь, которую вы хотите починить: \n" +
                "[1] - Двигатель\n" +
                "[2] - Подвеска\n" +
                "[3] - Проводка\n" +
                "[4] - Кузов");
            Console.Write("Ввод: ");

            if (int.TryParse(Console.ReadLine(), out int productNumber) == false 
                && productNumber > _detailsWarehouse.GetMaxPartsNumber())
            {
                Console.WriteLine("Ошибка! Такой детали нет.");
                return;
            }

            --productNumber;
            DetailType detailType = (DetailType)productNumber;

            RepairDetail(detailType);
        }
        
        public void SignContract(Shop shop)
        {
            if (Balance == 0)
            {
                Console.WriteLine("Ошибка! Нет предоплаты");
                return;
            }

            shop.Show();

            if (shop.IsDetailChosen(out DetailType detailType) == false)
            {
                return;
            }

            Balance -= shop.MakePrepayment(detailType);
            _detailsWarehouse.AddDetail(shop.BuyProduct(detailType));
        }

        public void CreateNewClient()
        {
            _clientCar = new Car();
        }

        public void ShowWarehouse()
        {
            _detailsWarehouse.ShowSpaceDetails();
        }

        private void RepairDetail(DetailType detailType)
        {
            Detail detail = _clientCar.GetBrokenDetailByType(detailType);

            if (detail.IsBroken == false)
            {
                Console.WriteLine("Деталь в рабочем состоянии!");
                _detailsWarehouse.TakeDetail(detail.DetailType);
                GetFine();
                return;
            }

            _clientCar.ReplaceDetail(_detailsWarehouse.TakeDetail(detail.DetailType));
            GetProfit(_detailsWarehouse.GetPrice(detail.DetailType));
        }

        private void GetFine()
        {
            Balance -= _fine;
        }

        private void GetProfit(int detailPrice)
        {
            Balance += detailPrice + WorkCost;
        }
    }

 	class Car
    {
        private static Random _random = new Random();

        private List<Detail> _details;

        public Car()
        {
            _details = new List<Detail>()
            {
                new Detail("Двигатель", DetailType.Engine, TryToBreak()),
                new Detail("Подвеска", DetailType.Suspension, TryToBreak()),
                new Detail("Проводка", DetailType.Wiring, TryToBreak()),
                new Detail("Кузов", DetailType.Body, TryToBreak())
            };

            CheckCreatedDetails();
        }

        public void ReplaceDetail(Detail newDetail)
        {
            for (int i = 0; i < _details.Count; i++)
            {
                if(_details[i].DetailType == newDetail.DetailType)
                {
                    _details[i] = newDetail;
                }
            }
        }

        public Detail GetBrokenDetailByType(DetailType detailType)
        {
            foreach (var brokenDetail in _details)
            {
                if (brokenDetail.DetailType == detailType)
                {
                    return brokenDetail;
                }
            }

            throw new Exception("Ошибка! Деталь, которую вы хотите взять не храниться на складе!");
        }

        public bool IsDetailsBroken()
        {
            foreach (var detail in _details)
            {
                if (detail.IsBroken)
                    return true;
            }
            return false;
        }

        public void ShowBrokenDetails()
        {
            foreach (var brokenDetail in _details)
            {
                if (brokenDetail.IsBroken)
                {
                    Console.WriteLine($"{brokenDetail.Name} в критическом состоянии!");
                }
            }
        }

        private bool TryToBreak()
        {
            return Convert.ToBoolean(_random.Next(0, 2));
        }

        private void CheckCreatedDetails()
        {
            List<Detail> details = new List<Detail>();

            foreach (var detail in _details)
            {
                if(detail.IsBroken == false)
                {
                    details.Add(detail);
                }
                else
                {
                    return;
                }
            }
            details[_random.Next(0, details.Count)].BreakDetail();
        }
    }

	class Detail
    {
        public string Name { get; protected set; }
        public DetailType DetailType { get; protected set; }
        public bool IsBroken { get; protected set; }

        public Detail(string name, DetailType detailType, bool isBroken)
        {
            Name = name;
            DetailType = detailType;
            IsBroken = isBroken;
        }

        public void BreakDetail()
        {
            IsBroken = true;
        }
    }

	enum DetailType 
    {
        Engine,
        Suspension,
        Wiring,
        Body
    }

	class SpareDetail : Detail
    {
        public int Price { get; private set; }

        public SpareDetail(string name, DetailType detailType, bool isBroken, int price) : base(name, detailType, isBroken)
        {
            Name = name;
            IsBroken = false;
            Price = price;
        }
    }

	abstract class Warehouse
    {
        protected Dictionary<SpareDetail, int> _spareDetails;

        public void ShowSpaceDetails()
        {
            foreach (var spareDetail in _spareDetails)
            {
                Console.WriteLine($"{spareDetail.Key.Name } - {spareDetail.Value}");
            }
        }

        public Detail TakeDetail(DetailType detailType)
        {
            foreach (var requiredDetail in _spareDetails)
            {
                if (requiredDetail.Key.DetailType == detailType)
                {
                    _spareDetails[requiredDetail.Key] -= 1;
                    return requiredDetail.Key;
                }
            }

            throw new Exception("Ошибка! Деталь, которую вы хотите взять не храниться на складе!");
        }

        public int GetPrice(DetailType detailType)
        {
            foreach (var requiredDetail in _spareDetails)
            {
                if (requiredDetail.Key.DetailType == detailType)
                {
                    return requiredDetail.Key.Price;
                }
            }
            throw new Exception("Ошибка! Деталь, которую вы хотите взять не храниться на складе! Цену получить нельзя!");
        }

        public bool IsSpaceDetailsEmpty()
        {
            foreach (var spareDetail in _spareDetails)
            {
                if (spareDetail.Value != 0)
                {
                    return false;
                }
            }
            return true;
        }
    }

	class DetailWarehouse : Warehouse
    {
        public DetailWarehouse()
        {
            Detail Engine = new SpareDetail("Двигатель", DetailType.Engine, true, 20000);
            SpareDetail spaceEngine = Engine as SpareDetail;

            Detail Suspension = new SpareDetail("Подвеска", DetailType.Suspension, true, 15000);
            SpareDetail spaceSuspencion = Suspension as SpareDetail;

            Detail Wiring = new SpareDetail("Проводка", DetailType.Wiring, true, 10000);
            SpareDetail spaceWiring = Wiring as SpareDetail;

            Detail Body = new SpareDetail("Кузов", DetailType.Body, true, 5000);
            SpareDetail spaceBody = Body as SpareDetail;

            _spareDetails = new Dictionary<SpareDetail, int>
            {
                { spaceEngine, 5 },
                { spaceSuspencion, 5 },
                { spaceWiring, 5 },
                { spaceBody, 5 }
            };
        }

        public void AddDetail(Detail detail)
        {
            foreach (var spareDetail in _spareDetails.ToArray())
            {
                if(spareDetail.Key.DetailType == detail.DetailType)
                {
                    _spareDetails[spareDetail.Key] += 1;
                    return;
                }
            }
        }

        public int GetMaxPartsNumber()
        {
            return _spareDetails.Keys.Count;
        }
    }

 	class Shop : Warehouse
    {
        private int _maxProducts;

        public int RefreshCounter { get; private set; }

        public Shop()
        {
            _maxProducts = 7;
            RefreshCounter = 5;

            Detail Engine = new SpareDetail("Двигатель", DetailType.Engine, true, 10000);
            SpareDetail spaceEngine = Engine as SpareDetail;

            Detail Suspension = new SpareDetail("Подвеска", DetailType.Suspension, true, 7000);
            SpareDetail spaceSuspencion = Suspension as SpareDetail;

            Detail Wiring = new SpareDetail("Проводка", DetailType.Wiring, true, 5000);
            SpareDetail spaceWiring = Wiring as SpareDetail;

            Detail Body = new SpareDetail("Кузов", DetailType.Body, true, 2500);
            SpareDetail spaceBody = Body as SpareDetail;

            _spareDetails = new Dictionary<SpareDetail, int>
            {
                { spaceEngine, 7 },
                { spaceSuspencion, 7 },
                { spaceWiring, 7 },
                { spaceBody, 7 }
            };
        }

        public void Show()
        {
            Console.WriteLine("\nКакой товар вы хотите купить?\n" +
                    "[1] - Двигатель\n" +
                    "[2] - Подвеска\n" +
                    "[3] - Проводка\n" +
                    "[4] - Кузов\n" +
                    "[exit] - Выйти из каталога");
            Console.Write("Ввод: ");
        }

        public bool IsDetailChosen(out DetailType detailType)
        {
            detailType = 0;

            string userInput = Console.ReadLine();

            if(userInput == "exit")
            {
                return false;
            }

            if (int.TryParse(userInput, out int numberProduct) && numberProduct <= _maxProducts)
            {
                --numberProduct;
                detailType = (DetailType)numberProduct;
                return true;
            }
            return false;
        }

        public int MakePrepayment(DetailType detailType)
        {
            return GetPrice(detailType);
        }

        public Detail BuyProduct(DetailType detailType)
        {
            return TakeDetail(detailType);
        }

        public void TryRefreshProducts()
        {
            if (RefreshCounter == 0)
            {
                UpdateProducts();
                RefreshCounter = 6;
            }
            RefreshCounter -= 1;
        }

        private void UpdateProducts()
        {
            Dictionary<SpareDetail, int> tempList = new Dictionary<SpareDetail, int>(_spareDetails);

            foreach (var product in tempList)
            {
                if (product.Value != _maxProducts)
                {
                    _spareDetails[product.Key] = _maxProducts;
                }
            }
        }
    }
}