midrandbooks/MidrandBookshop/Components/BookCard.razor.cs

using LiteCharms.Features.MidrandBooks.AuthorBooks;
using LiteCharms.Features.MidrandBooks.Authors;
using LiteCharms.Features.MidrandBooks.Payments;
using LiteCharms.Features.MidrandBooks.Products;

namespace MidrandBookshop.Components;

public partial class BookCard
{
    [Parameter] public long Id { get; set; }
    [Parameter] public string Title { get; set; } = string.Empty;
    [Parameter] public string Author { get; set; } = string.Empty;
    [Parameter] public decimal Price { get; set; }
    [Parameter] public string Category { get; set; } = string.Empty;
    [Parameter] public bool IsNew { get; set; }
    [Parameter] public string BookImageUrl { get; set; } = string.Empty;

    [Parameter] public EventCallback OnCardClick { get; set; }

    [Inject] private CartService CartService { get; set; } = default!;
    [Inject] private ProductService ProductService { get; set; } = default!;
    [Inject] private AuthorService AuthorService { get; set; } = default!;
    [Inject] private BooksService BooksService { get; set; } = default!;
    [Inject] private IToastService ToastService { get; set; } = default!;
    [Inject] private CancellationToken CancellationToken { get; set; } = default!;

    private async Task HandleAddToCart()
    {
        try
        {
            var bookFetch = await BooksService.GetBookByProductIdAsync(Id, CancellationToken);            
            var authorFetch = await AuthorService.GetAuthorAsync(bookFetch.Value.AuthorId, CancellationToken);
            var productPriceFetch = await ProductService.GetProductPriceAsync(Id, CancellationToken);

            CartService.AddItem(productPriceFetch.Value, bookFetch.Value.Product!, authorFetch.Value);

            ToastService.ShowSuccess($"Added '{Title}' to your order.", "Cart Changed");
        }
        catch
        {
            ToastService.ShowError("Could not update cart. Please try again.");
        }
    }
}