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

namespace BookNotes
{
    class User
    {
        string login;
        string password;
        List<Note> notes;

        public User(string _login, string _password)
        {
            login = _login;
            password = _password;
        }

        public string Login
        {
            get
            {
                return login;
            }
        }

        public string Password
        {
            get
            {
                return password;
            }
        }

        public void AddNote(Note note)
        {
            notes.Add(note);
        }

        public void AddNotes(List<Note> _notes)
        {
            notes.AddRange(_notes);
        }
    }

    class Note
    {
        string note;
        User userId;
        Book bookId;

       public string _Note
        {
            get
            {
                return note;
            }
            set
            {
                if (note.Length > 0 && note.Length < 750)
                {
                    note = value;
                }
            }
        }
       public User _userId
        {
            get
            {
                return userId;
            }
            set
            {
                userId = value;
            }
        }
        public Book _bookId
        {
            get
            {
                return bookId;
            }
            set
            {
                bookId = value;
            }
        }
    }
    class Book
    {
        List<Note> notes;
        private int bookId;
        private static int count;

        public Note noteS
        {
            get
            {
                return notes;
            }
        }

        public int idBook
        {
            get
            {
                return bookId;
            }
        }

        public Book()
        {
            count++;
            bookId = count;
        }
        public void AddNote(Note note)
        {
            notes.Add(note);
        }
        public void AddNotes(List<Note> _notes)
        {
            notes.AddRange(_notes);
        }
    }



    class System
    {
        User user;
        private static List<User> users = new List<User>();
        int status;
        public System(User _user)
        {
            user = _user;
            users.Add(user);
        }

        public int CheckId()
        {

            string answ = null;

            Console.WriteLine("Do you want to Login? \n\t\t Y/N");
            string descision = Console.ReadLine();

            if (descision == "Y" || descision == "y")
            {
                Console.WriteLine("Enter your user name :");
                answ = Console.ReadLine();
                Console.WriteLine("Enter Your Password: ");
                string userPasw = Console.ReadLine();

                while (true)
                {
                    if (answ == user.Login && userPasw == user.Password)
                    {
                        status = 1;
                        Console.WriteLine("You are logged");
                        return status;
                        break;
                    }
                    else
                    {
                        Console.WriteLine("User number or password is wrong, repeat your attempt");
                    }
                }
            }
            else if (answ == "N" || answ == "n")
            {
                Console.WriteLine("Do you want to complete registration? \n\t\t Y/N");
                answ = Console.ReadLine();

                switch (answ)
                {
                    case "Y":
                    case "y":
                        AddUser();
                        status = 1;
                        return status;
                        break;
                    case "N":
                    case "n":
                        Console.WriteLine("You will continue unlogged");
                        status = 0;
                        return status;
                        break;
                }
            }
        }
        private int AddUser()
        {
            string answ = Console.ReadLine();
            switch (answ)
            {
                case "Y":
                case "y":
                    Console.WriteLine("Enter Your Username: ");
                    string userId = Console.ReadLine();
                    Console.WriteLine("Enter Your Password: ");
                    string userPasw = Console.ReadLine();
                    User noviy = new User(userId, userPasw);
                    users.Add(noviy);
                    return status = 1;
                    break;

                case "N":
                case "n":
                    return status = 0;
                    break;
            }
        }

        public void StatusChek(int status)
        {
            if (status == 0)
            {
                Console.WriteLine("You are not autorized. You may only add and read your own notes");
            }
            else if (status == 1)
            {
                Console.WriteLine("You are autorized. You may add notes, read your own notes and notes of other users");
            }
        }
    }

    class Screener
    {
        public void ShowAllNotes( List<Note> notes)
        {
            notes.ForEach(x => { Console.Write(x); });
        }
        public int ShowBookId(Book book)
        {
            return book.idBook;
        }

        public void ShowNote (Note note)
        {
            Console.WriteLine("Записка принадлежит книге с ID {0} \n Записка принадлежит пользователю с ID {1} \n Текст записки: \n {2}", note._bookId, note._userId, note._Note);
        }


    }
    class Program
    {

        static void Main(string[] args)
        {

        }
    }
}