private void RateBook(string[] args)
{
if (args.Length != 3)
{
output.PrintLine("Wrong rate command format. Try: rate [book id] [rating]");
}
var bookId = long.Parse(args[1]);
var rating = int.Parse(args[2]);
booksManager.Rate(bookId, rating);
var book = booksManager.FindById(bookId);
var totalRating = booksManager.ComputeRatingFor(bookId);
output.PrintLine($"{book.Title} rated: {rating}, total rating: {totalRating}");
}
