C#10ify

CliFx.Demo/Commands/BookAddCommand.cs

@@ -6,65 +6,64 @@ using CliFx.Demo.Utils;
 using CliFx.Exceptions;
 using CliFx.Infrastructure;
 
-namespace CliFx.Demo.Commands
+namespace CliFx.Demo.Commands;
+
+[Command("book add", Description = "Add a book to the library.")]
+public partial class BookAddCommand : ICommand
 {
-    [Command("book add", Description = "Add a book to the library.")]
-    public partial class BookAddCommand : ICommand
+    private readonly LibraryProvider _libraryProvider;
+
+    [CommandParameter(0, Name = "title", Description = "Book title.")]
+    public string Title { get; init; } = "";
+
+    [CommandOption("author", 'a', IsRequired = true, Description = "Book author.")]
+    public string Author { get; init; } = "";
+
+    [CommandOption("published", 'p', Description = "Book publish date.")]
+    public DateTimeOffset Published { get; init; } = CreateRandomDate();
+
+    [CommandOption("isbn", 'n', Description = "Book ISBN.")]
+    public Isbn Isbn { get; init; } = CreateRandomIsbn();
+
+    public BookAddCommand(LibraryProvider libraryProvider)
     {
-        private readonly LibraryProvider _libraryProvider;
-
-        [CommandParameter(0, Name = "title", Description = "Book title.")]
-        public string Title { get; init; } = "";
-
-        [CommandOption("author", 'a', IsRequired = true, Description = "Book author.")]
-        public string Author { get; init; } = "";
-
-        [CommandOption("published", 'p', Description = "Book publish date.")]
-        public DateTimeOffset Published { get; init; } = CreateRandomDate();
-
-        [CommandOption("isbn", 'n', Description = "Book ISBN.")]
-        public Isbn Isbn { get; init; } = CreateRandomIsbn();
-
-        public BookAddCommand(LibraryProvider libraryProvider)
-        {
-            _libraryProvider = libraryProvider;
-        }
-
-        public ValueTask ExecuteAsync(IConsole console)
-        {
-            if (_libraryProvider.TryGetBook(Title) is not null)
-                throw new CommandException("Book already exists.", 10);
-
-            var book = new Book(Title, Author, Published, Isbn);
-            _libraryProvider.AddBook(book);
-
-            console.Output.WriteLine("Book added.");
-            console.Output.WriteBook(book);
-
-            return default;
-        }
+        _libraryProvider = libraryProvider;
     }
 
-    public partial class BookAddCommand
+    public ValueTask ExecuteAsync(IConsole console)
     {
-        private static readonly Random Random = new();
+        if (_libraryProvider.TryGetBook(Title) is not null)
+            throw new CommandException("Book already exists.", 10);
 
-        private static DateTimeOffset CreateRandomDate() => new(
-            Random.Next(1800, 2020),
-            Random.Next(1, 12),
-            Random.Next(1, 28),
-            Random.Next(1, 23),
-            Random.Next(1, 59),
-            Random.Next(1, 59),
-            TimeSpan.Zero
-        );
+        var book = new Book(Title, Author, Published, Isbn);
+        _libraryProvider.AddBook(book);
 
-        private static Isbn CreateRandomIsbn() => new(
-            Random.Next(0, 999),
-            Random.Next(0, 99),
-            Random.Next(0, 99999),
-            Random.Next(0, 99),
-            Random.Next(0, 9)
-        );
+        console.Output.WriteLine("Book added.");
+        console.Output.WriteBook(book);
+
+        return default;
     }
+}
+
+public partial class BookAddCommand
+{
+    private static readonly Random Random = new();
+
+    private static DateTimeOffset CreateRandomDate() => new(
+        Random.Next(1800, 2020),
+        Random.Next(1, 12),
+        Random.Next(1, 28),
+        Random.Next(1, 23),
+        Random.Next(1, 59),
+        Random.Next(1, 59),
+        TimeSpan.Zero
+    );
+
+    private static Isbn CreateRandomIsbn() => new(
+        Random.Next(0, 999),
+        Random.Next(0, 99),
+        Random.Next(0, 99999),
+        Random.Next(0, 99),
+        Random.Next(0, 9)
+    );
 }

CliFx.Demo/Commands/BookCommand.cs

@@ -5,31 +5,30 @@ using CliFx.Demo.Utils;
 using CliFx.Exceptions;
 using CliFx.Infrastructure;
 
-namespace CliFx.Demo.Commands
+namespace CliFx.Demo.Commands;
+
+[Command("book", Description = "Retrieve a book from the library.")]
+public class BookCommand : ICommand
 {
-    [Command("book", Description = "Retrieve a book from the library.")]
-    public class BookCommand : ICommand
+    private readonly LibraryProvider _libraryProvider;
+
+    [CommandParameter(0, Name = "title", Description = "Title of the book to retrieve.")]
+    public string Title { get; init; } = "";
+
+    public BookCommand(LibraryProvider libraryProvider)
     {
-        private readonly LibraryProvider _libraryProvider;
+        _libraryProvider = libraryProvider;
+    }
 
-        [CommandParameter(0, Name = "title", Description = "Title of the book to retrieve.")]
-        public string Title { get; init; } = "";
+    public ValueTask ExecuteAsync(IConsole console)
+    {
+        var book = _libraryProvider.TryGetBook(Title);
 
-        public BookCommand(LibraryProvider libraryProvider)
-        {
-            _libraryProvider = libraryProvider;
-        }
+        if (book is null)
+            throw new CommandException("Book not found.", 10);
 
-        public ValueTask ExecuteAsync(IConsole console)
-        {
-            var book = _libraryProvider.TryGetBook(Title);
+        console.Output.WriteBook(book);
 
-            if (book is null)
-                throw new CommandException("Book not found.", 10);
-
-            console.Output.WriteBook(book);
-
-            return default;
-        }
+        return default;
     }
 }

CliFx.Demo/Commands/BookListCommand.cs

@@ -4,34 +4,33 @@ using CliFx.Demo.Domain;
 using CliFx.Demo.Utils;
 using CliFx.Infrastructure;
 
-namespace CliFx.Demo.Commands
+namespace CliFx.Demo.Commands;
+
+[Command("book list", Description = "List all books in the library.")]
+public class BookListCommand : ICommand
 {
-    [Command("book list", Description = "List all books in the library.")]
-    public class BookListCommand : ICommand
+    private readonly LibraryProvider _libraryProvider;
+
+    public BookListCommand(LibraryProvider libraryProvider)
     {
-        private readonly LibraryProvider _libraryProvider;
+        _libraryProvider = libraryProvider;
+    }
 
-        public BookListCommand(LibraryProvider libraryProvider)
+    public ValueTask ExecuteAsync(IConsole console)
+    {
+        var library = _libraryProvider.GetLibrary();
+
+        for (var i = 0; i < library.Books.Count; i++)
         {
-            _libraryProvider = libraryProvider;
+            // Add margin
+            if (i != 0)
+                console.Output.WriteLine();
+
+            // Render book
+            var book = library.Books[i];
+            console.Output.WriteBook(book);
         }
 
-        public ValueTask ExecuteAsync(IConsole console)
-        {
-            var library = _libraryProvider.GetLibrary();
-
-            for (var i = 0; i < library.Books.Count; i++)
-            {
-                // Add margin
-                if (i != 0)
-                    console.Output.WriteLine();
-
-                // Render book
-                var book = library.Books[i];
-                console.Output.WriteBook(book);
-            }
-
-            return default;
-        }
+        return default;
     }
 }

CliFx.Demo/Commands/BookRemoveCommand.cs

@@ -4,33 +4,32 @@ using CliFx.Demo.Domain;
 using CliFx.Exceptions;
 using CliFx.Infrastructure;
 
-namespace CliFx.Demo.Commands
+namespace CliFx.Demo.Commands;
+
+[Command("book remove", Description = "Remove a book from the library.")]
+public class BookRemoveCommand : ICommand
 {
-    [Command("book remove", Description = "Remove a book from the library.")]
-    public class BookRemoveCommand : ICommand
+    private readonly LibraryProvider _libraryProvider;
+
+    [CommandParameter(0, Name = "title", Description = "Title of the book to remove.")]
+    public string Title { get; init; } = "";
+
+    public BookRemoveCommand(LibraryProvider libraryProvider)
     {
-        private readonly LibraryProvider _libraryProvider;
+        _libraryProvider = libraryProvider;
+    }
 
-        [CommandParameter(0, Name = "title", Description = "Title of the book to remove.")]
-        public string Title { get; init; } = "";
+    public ValueTask ExecuteAsync(IConsole console)
+    {
+        var book = _libraryProvider.TryGetBook(Title);
 
-        public BookRemoveCommand(LibraryProvider libraryProvider)
-        {
-            _libraryProvider = libraryProvider;
-        }
+        if (book is null)
+            throw new CommandException("Book not found.", 10);
 
-        public ValueTask ExecuteAsync(IConsole console)
-        {
-            var book = _libraryProvider.TryGetBook(Title);
+        _libraryProvider.RemoveBook(book);
 
-            if (book is null)
-                throw new CommandException("Book not found.", 10);
+        console.Output.WriteLine($"Book {Title} removed.");
 
-            _libraryProvider.RemoveBook(book);
-
-            console.Output.WriteLine($"Book {Title} removed.");
-
-            return default;
-        }
+        return default;
     }
 }

CliFx.Demo/Domain/Book.cs

@@ -1,23 +1,22 @@
 using System;
 
-namespace CliFx.Demo.Domain
+namespace CliFx.Demo.Domain;
+
+public class Book
 {
-    public class Book
+    public string Title { get; }
+
+    public string Author { get; }
+
+    public DateTimeOffset Published { get; }
+
+    public Isbn Isbn { get; }
+
+    public Book(string title, string author, DateTimeOffset published, Isbn isbn)
     {
-        public string Title { get; }
-
-        public string Author { get; }
-
-        public DateTimeOffset Published { get; }
-
-        public Isbn Isbn { get; }
-
-        public Book(string title, string author, DateTimeOffset published, Isbn isbn)
-        {
-            Title = title;
-            Author = author;
-            Published = published;
-            Isbn = isbn;
-        }
+        Title = title;
+        Author = author;
+        Published = published;
+        Isbn = isbn;
     }
 }

CliFx.Demo/Domain/Isbn.cs

@@ -1,45 +1,44 @@
 using System;
 
-namespace CliFx.Demo.Domain
+namespace CliFx.Demo.Domain;
+
+public partial class Isbn
 {
-    public partial class Isbn
+    public int EanPrefix { get; }
+
+    public int RegistrationGroup { get; }
+
+    public int Registrant { get; }
+
+    public int Publication { get; }
+
+    public int CheckDigit { get; }
+
+    public Isbn(int eanPrefix, int registrationGroup, int registrant, int publication, int checkDigit)
     {
-        public int EanPrefix { get; }
-
-        public int RegistrationGroup { get; }
-
-        public int Registrant { get; }
-
-        public int Publication { get; }
-
-        public int CheckDigit { get; }
-
-        public Isbn(int eanPrefix, int registrationGroup, int registrant, int publication, int checkDigit)
-        {
-            EanPrefix = eanPrefix;
-            RegistrationGroup = registrationGroup;
-            Registrant = registrant;
-            Publication = publication;
-            CheckDigit = checkDigit;
-        }
-
-        public override string ToString() =>
-            $"{EanPrefix:000}-{RegistrationGroup:00}-{Registrant:00000}-{Publication:00}-{CheckDigit:0}";
+        EanPrefix = eanPrefix;
+        RegistrationGroup = registrationGroup;
+        Registrant = registrant;
+        Publication = publication;
+        CheckDigit = checkDigit;
     }
 
-    public partial class Isbn
-    {
-        public static Isbn Parse(string value, IFormatProvider formatProvider)
-        {
-            var components = value.Split('-', 5, StringSplitOptions.RemoveEmptyEntries);
+    public override string ToString() =>
+        $"{EanPrefix:000}-{RegistrationGroup:00}-{Registrant:00000}-{Publication:00}-{CheckDigit:0}";
+}
 
-            return new Isbn(
-                int.Parse(components[0], formatProvider),
-                int.Parse(components[1], formatProvider),
-                int.Parse(components[2], formatProvider),
-                int.Parse(components[3], formatProvider),
-                int.Parse(components[4], formatProvider)
-            );
-        }
+public partial class Isbn
+{
+    public static Isbn Parse(string value, IFormatProvider formatProvider)
+    {
+        var components = value.Split('-', 5, StringSplitOptions.RemoveEmptyEntries);
+
+        return new Isbn(
+            int.Parse(components[0], formatProvider),
+            int.Parse(components[1], formatProvider),
+            int.Parse(components[2], formatProvider),
+            int.Parse(components[3], formatProvider),
+            int.Parse(components[4], formatProvider)
+        );
     }
 }

CliFx.Demo/Domain/Library.cs

@@ -2,35 +2,34 @@
 using System.Collections.Generic;
 using System.Linq;
 
-namespace CliFx.Demo.Domain
+namespace CliFx.Demo.Domain;
+
+public partial class Library
 {
-    public partial class Library
+    public IReadOnlyList<Book> Books { get; }
+
+    public Library(IReadOnlyList<Book> books)
     {
-        public IReadOnlyList<Book> Books { get; }
-
-        public Library(IReadOnlyList<Book> books)
-        {
-            Books = books;
-        }
-
-        public Library WithBook(Book book)
-        {
-            var books = Books.ToList();
-            books.Add(book);
-
-            return new Library(books);
-        }
-
-        public Library WithoutBook(Book book)
-        {
-            var books = Books.Where(b => b != book).ToArray();
-
-            return new Library(books);
-        }
+        Books = books;
     }
 
-    public partial class Library
+    public Library WithBook(Book book)
     {
-        public static Library Empty { get; } = new(Array.Empty<Book>());
+        var books = Books.ToList();
+        books.Add(book);
+
+        return new Library(books);
     }
+
+    public Library WithoutBook(Book book)
+    {
+        var books = Books.Where(b => b != book).ToArray();
+
+        return new Library(books);
+    }
+}
+
+public partial class Library
+{
+    public static Library Empty { get; } = new(Array.Empty<Book>());
 }

CliFx.Demo/Domain/LibraryProvider.cs

@@ -2,40 +2,39 @@
 using System.Linq;
 using Newtonsoft.Json;
 
-namespace CliFx.Demo.Domain
+namespace CliFx.Demo.Domain;
+
+public class LibraryProvider
 {
-    public class LibraryProvider
+    private static string StorageFilePath { get; } = Path.Combine(Directory.GetCurrentDirectory(), "Library.json");
+
+    private void StoreLibrary(Library library)
     {
-        private static string StorageFilePath { get; } = Path.Combine(Directory.GetCurrentDirectory(), "Library.json");
+        var data = JsonConvert.SerializeObject(library);
+        File.WriteAllText(StorageFilePath, data);
+    }
 
-        private void StoreLibrary(Library library)
-        {
-            var data = JsonConvert.SerializeObject(library);
-            File.WriteAllText(StorageFilePath, data);
-        }
+    public Library GetLibrary()
+    {
+        if (!File.Exists(StorageFilePath))
+            return Library.Empty;
 
-        public Library GetLibrary()
-        {
-            if (!File.Exists(StorageFilePath))
-                return Library.Empty;
+        var data = File.ReadAllText(StorageFilePath);
 
-            var data = File.ReadAllText(StorageFilePath);
+        return JsonConvert.DeserializeObject<Library>(data) ?? Library.Empty;
+    }
 
-            return JsonConvert.DeserializeObject<Library>(data) ?? Library.Empty;
-        }
+    public Book? TryGetBook(string title) => GetLibrary().Books.FirstOrDefault(b => b.Title == title);
 
-        public Book? TryGetBook(string title) => GetLibrary().Books.FirstOrDefault(b => b.Title == title);
+    public void AddBook(Book book)
+    {
+        var updatedLibrary = GetLibrary().WithBook(book);
+        StoreLibrary(updatedLibrary);
+    }
 
-        public void AddBook(Book book)
-        {
-            var updatedLibrary = GetLibrary().WithBook(book);
-            StoreLibrary(updatedLibrary);
-        }
-
-        public void RemoveBook(Book book)
-        {
-            var updatedLibrary = GetLibrary().WithoutBook(book);
-            StoreLibrary(updatedLibrary);
-        }
+    public void RemoveBook(Book book)
+    {
+        var updatedLibrary = GetLibrary().WithoutBook(book);
+        StoreLibrary(updatedLibrary);
     }
 }

CliFx.Demo/Program.cs

@@ -4,33 +4,32 @@ using CliFx.Demo.Commands;
 using CliFx.Demo.Domain;
 using Microsoft.Extensions.DependencyInjection;
 
-namespace CliFx.Demo
+namespace CliFx.Demo;
+
+public static class Program
 {
-    public static class Program
+    private static IServiceProvider GetServiceProvider()
     {
-        private static IServiceProvider GetServiceProvider()
-        {
-            // We use Microsoft.Extensions.DependencyInjection for injecting dependencies in commands
-            var services = new ServiceCollection();
+        // We use Microsoft.Extensions.DependencyInjection for injecting dependencies in commands
+        var services = new ServiceCollection();
 
-            // Register services
-            services.AddSingleton<LibraryProvider>();
+        // Register services
+        services.AddSingleton<LibraryProvider>();
 
-            // Register commands
-            services.AddTransient<BookCommand>();
-            services.AddTransient<BookAddCommand>();
-            services.AddTransient<BookRemoveCommand>();
-            services.AddTransient<BookListCommand>();
+        // Register commands
+        services.AddTransient<BookCommand>();
+        services.AddTransient<BookAddCommand>();
+        services.AddTransient<BookRemoveCommand>();
+        services.AddTransient<BookListCommand>();
 
-            return services.BuildServiceProvider();
-        }
-
-        public static async Task<int> Main() =>
-            await new CliApplicationBuilder()
-                .SetDescription("Demo application showcasing CliFx features.")
-                .AddCommandsFromThisAssembly()
-                .UseTypeActivator(GetServiceProvider().GetRequiredService)
-                .Build()
-                .RunAsync();
+        return services.BuildServiceProvider();
     }
+
+    public static async Task<int> Main() =>
+        await new CliApplicationBuilder()
+            .SetDescription("Demo application showcasing CliFx features.")
+            .AddCommandsFromThisAssembly()
+            .UseTypeActivator(GetServiceProvider().GetRequiredService)
+            .Build()
+            .RunAsync();
 }

CliFx.Demo/Utils/ConsoleExtensions.cs

@@ -2,36 +2,35 @@
 using CliFx.Demo.Domain;
 using CliFx.Infrastructure;
 
-namespace CliFx.Demo.Utils
+namespace CliFx.Demo.Utils;
+
+internal static class ConsoleExtensions
 {
-    internal static class ConsoleExtensions
+    public static void WriteBook(this ConsoleWriter writer, Book book)
     {
-        public static void WriteBook(this ConsoleWriter writer, Book book)
-        {
-            // Title
-            using (writer.Console.WithForegroundColor(ConsoleColor.White))
-                writer.WriteLine(book.Title);
+        // Title
+        using (writer.Console.WithForegroundColor(ConsoleColor.White))
+            writer.WriteLine(book.Title);
 
-            // Author
-            writer.Write("  ");
-            writer.Write("Author: ");
+        // Author
+        writer.Write("  ");
+        writer.Write("Author: ");
 
-            using (writer.Console.WithForegroundColor(ConsoleColor.White))
-                writer.WriteLine(book.Author);
+        using (writer.Console.WithForegroundColor(ConsoleColor.White))
+            writer.WriteLine(book.Author);
 
-            // Published
-            writer.Write("  ");
-            writer.Write("Published: ");
+        // Published
+        writer.Write("  ");
+        writer.Write("Published: ");
 
-            using (writer.Console.WithForegroundColor(ConsoleColor.White))
-                writer.WriteLine($"{book.Published:d}");
+        using (writer.Console.WithForegroundColor(ConsoleColor.White))
+            writer.WriteLine($"{book.Published:d}");
 
-            // ISBN
-            writer.Write("  ");
-            writer.Write("ISBN: ");
+        // ISBN
+        writer.Write("  ");
+        writer.Write("ISBN: ");
 
-            using (writer.Console.WithForegroundColor(ConsoleColor.White))
-                writer.WriteLine(book.Isbn);
-        }
+        using (writer.Console.WithForegroundColor(ConsoleColor.White))
+            writer.WriteLine(book.Isbn);
     }
 }