Library-Management-System/Program.cs at main · adhamdr1/Library-Management-System · GitHub

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

namespace Library_Management_System
{
    public class Program
    {
        static void Main(string[] args)
        {
            Library library = new Library();
            Console.WriteLine("                                           <-Welcome to the Library System->");
            Console.WriteLine("Are you Librarian or regular user? (L / R)?");


            char usertype = Console.ReadLine().ToUpper()[0];

            if (usertype == 'L')
            {
                Console.Write("Welcome Librarian, Enter your Name -> ");
                string librarianName = Console.ReadLine();

                Librarian li = new Librarian(librarianName);

                Console.WriteLine($"Welcome {li.Name}");


                while (true)
                {
                    Console.WriteLine($"Please choose to Add Book (A) / Remove Book (R) / Display Books (D)?");
                    char choice = Console.ReadLine().ToUpper()[0];
                    switch (choice)
                    {
                        case 'A':
                            Console.WriteLine("Enter Book Details Addind");
                            Console.WriteLine("=============================");
                            Console.Write("Enter Title Book -> ");
                            string TitleBook = Console.ReadLine();
                            Console.Write("Enter Author Book -> ");
                            string AuthorBook = Console.ReadLine();
                            Console.Write("Enter Year Book -> ");
                            int YearBook = Convert.ToInt32(Console.ReadLine());
                            Book book = new Book(YearBook, TitleBook, AuthorBook);
                            li.AddBook(book, library);
                            break;
                        case 'R':
                            Console.WriteLine("Enter Book Details Removing");
                            Console.WriteLine("=============================");
                            Console.Write("Enter Title Book -> ");
                            TitleBook = Console.ReadLine();
                            Console.Write("Enter Author Book -> ");
                            AuthorBook = Console.ReadLine();
                            Console.Write("Enter Year Book -> ");
                            YearBook = Convert.ToInt32(Console.ReadLine());
                            book = new Book(YearBook, TitleBook, AuthorBook);
                            li.RemoveBook(book, library);
                            break;
                        case 'D':
                            Console.WriteLine("The Book List : ");
                            li.DisplayBooks(library);
                            break;
                        default:
                            Environment.Exit(0);
                            break;
                    }
                }
            }
            else if (usertype == 'R')
            {
                Console.Write("Welcome User, Enter your Name -> ");
                string UserName = Console.ReadLine();

                LibraryUser u1 = new LibraryUser(UserName);

                Console.WriteLine($"Welcome {u1.Name}");
                while (true)
                {
                    Console.WriteLine($"Please choose to Borrow Book(B) / Display Books (D)?");
                    char choice = Console.ReadLine().ToUpper()[0];
                    switch (choice)
                    {
                        case 'B':
                            Console.WriteLine("Enter Book Borrow Details");
                            Console.WriteLine("=============================");
                            Console.Write("Enter Title Book -> ");
                            string TitleBook = Console.ReadLine();
                            Console.Write("Enter Author Book -> ");
                            string AuthorBook = Console.ReadLine();
                            Console.Write("Enter Year Book -> ");
                            int YearBook = Convert.ToInt32(Console.ReadLine());
                            Book book = new Book(YearBook, TitleBook, AuthorBook);
                            u1.BorrowBooks(book, library);
                            break;
                        case 'D':
                            Console.WriteLine("The Book List : ");
                            u1.DisplayBooks(library);
                            break;
                        default:
                            Environment.Exit(0);
                            break;
                    }
                }

            }
            else
            {
                Console.WriteLine("Please enter Correct Value (L or R)");
            }

            Console.ReadKey();
        }

    }

}