BooksController.cs

using Spectre.Console;
using TCSA.OOP.LibraryManagementSystem.Models;

namespace TCSA.OOP.LibraryManagementSystem;

internal class BooksController
{

    internal void ViewBooks()
    {
        var table = new Table();
        table.Border(TableBorder.Rounded);

        table.AddColumn("[yellow]ID[/]");
        table.AddColumn("[yellow]Title[/]");
        table.AddColumn("[yellow]Author[/]");
        table.AddColumn("[yellow]Category[/]");
        table.AddColumn("[yellow]Location[/]");
        table.AddColumn("[yellow]Pages[/]");

        //Filtering only items of the book type
        var books = MockDatabase.LibraryItems.OfType<Book>();

        foreach (var book in books)
        {
            table.AddRow(
                book.Id.ToString(),
                $"[cyan]{book.Name}[/]",
                $"[cyan]{book.Author}[/]",
                $"[green]{book.Category}[/]",
                $"[blue]{book.Location}[/]",
                book.Pages.ToString()
                );
        }

        AnsiConsole.Write(table);
        AnsiConsole.MarkupLine("Press Any Key to Continue.");
        Console.ReadKey();
    }

    internal void AddBook()
    {
        var title = AnsiConsole.Ask<string>("Enter the [green]title[/] of the book to add:");
        var author = AnsiConsole.Ask<string>("Enter the [green]author[/] of the book:");
        var category = AnsiConsole.Ask<string>("Enter the [green]category[/] of the book:");
        var location = AnsiConsole.Ask<string>("Enter the [green]location[/] of the book:");
        var pages = AnsiConsole.Ask<int>("Enter the [green]number of pages[/] in the book:");
        

        if (MockDatabase.LibraryItems.OfType<Book>().Any(b => b.Name.Equals(title, StringComparison.OrdinalIgnoreCase)))
        {
            AnsiConsole.MarkupLine("[red]This book already exists.[/]");
        }
        else
        {
            var newBook = new Book(MockDatabase.LibraryItems.Count + 1,title, author, category, location, pages);
            MockDatabase.LibraryItems.Add(newBook);
            AnsiConsole.MarkupLine("[green]Book added successfully![/]");
        }

        AnsiConsole.MarkupLine("Press Any Key to Continue");
        Console.ReadKey();
    }

    internal void DeleteBook()
    {
        if (MockDatabase.LibraryItems.Count == 0)
        {
            AnsiConsole.MarkupLine("[red]No books available to delete.[/]");
            Console.ReadKey();
            return;
        }

        var bookToDelete = AnsiConsole.Prompt(
            new SelectionPrompt<LibraryItem>().Title("Select a [red] book[/] to delete:")
            .UseConverter(b => $"{b.Name}")
            .AddChoices(MockDatabase.LibraryItems));

        if (MockDatabase.LibraryItems.Remove(bookToDelete))
        {
            AnsiConsole.MarkupLine("[red]Book deleted successfully![/]");
        }
        else
        {
            AnsiConsole.MarkupLine("[red]Book not found.[/]");
        }

        AnsiConsole.MarkupLine("Press Any Key to Continue.");
        Console.ReadKey();
    }
}