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ButtonsViewComponent.cs

using System.Globalization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Routing;
using Nop.Core;
using Nop.Plugin.Payments.PayPalCommerce.Services;
using Nop.Services.Catalog;
using Nop.Services.Payments;
using Nop.Web.Framework.Components;
using Nop.Web.Framework.Infrastructure;
using Nop.Web.Models.Catalog;

namespace Nop.Plugin.Payments.PayPalCommerce.Components;

/// 
/// Represents the view component to display buttons
/// 
public class ButtonsViewComponent : NopViewComponent
{
    #region Fields

    protected readonly IPaymentPluginManager _paymentPluginManager;
    protected readonly IPriceCalculationService _priceCalculationService;
    protected readonly IProductService _productServise;
    protected readonly IStoreContext _storeContext;
    protected readonly IWorkContext _workContext;
    protected readonly PayPalCommerceSettings _settings;

    #endregion

    #region Ctor

    public ButtonsViewComponent(IPaymentPluginManager paymentPluginManager,
        IPriceCalculationService priceCalculationService,
        IProductService productServise,
        IStoreContext storeContext,
        IWorkContext workContext,
        PayPalCommerceSettings settings)
    {
        _paymentPluginManager = paymentPluginManager;
        _priceCalculationService = priceCalculationService;
        _productServise = productServise;
        _storeContext = storeContext;
        _workContext = workContext;
        _settings = settings;
    }

    #endregion

    #region Methods

    /// 
    /// Invoke view component
    /// 
    /// Widget zone name
    /// Additional data
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the view component result
    /// 
    public async Task InvokeAsync(string widgetZone, object additionalData)
    {
        var customer = await _workContext.GetCurrentCustomerAsync();
        var store = await _storeContext.GetCurrentStoreAsync();
        if (!await _paymentPluginManager.IsPluginActiveAsync(PayPalCommerceDefaults.SystemName, customer, store?.Id ?? 0))
            return Content(string.Empty);

        if (!ServiceManager.IsConfigured(_settings))
            return Content(string.Empty);

        if (!widgetZone.Equals(PublicWidgetZones.ProductDetailsAddInfo) && !widgetZone.Equals(PublicWidgetZones.OrderSummaryContentAfter))
            return Content(string.Empty);

        if (widgetZone.Equals(PublicWidgetZones.OrderSummaryContentAfter))
        {
            if (!_settings.DisplayButtonsOnShoppingCart)
                return Content(string.Empty);

            var routeName = HttpContext.GetEndpoint()?.Metadata.GetMetadata()?.RouteName;
            if (routeName != PayPalCommerceDefaults.ShoppingCartRouteName)
                return Content(string.Empty);
        }

        if (widgetZone.Equals(PublicWidgetZones.ProductDetailsAddInfo) && !_settings.DisplayButtonsOnProductDetails)
            return Content(string.Empty);

        var productId = additionalData is ProductDetailsModel.AddToCartModel model ? model.ProductId : 0;
        var productCost = "0.00";
        if (productId > 0)
        {
            var product = await _productServise.GetProductByIdAsync(productId);
            var finalPrice = (await _priceCalculationService.GetFinalPriceAsync(product, customer, store)).finalPrice;
            productCost = finalPrice.ToString("0.00", CultureInfo.InvariantCulture);
        }
        return View("~/Plugins/Payments.PayPalCommerce/Views/Buttons.cshtml", (widgetZone, productId, productCost));
    }

    #endregion
}