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EventConsumer.cs

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Routing;
using Nop.Core.Domain.Customers;
using Nop.Core.Domain.Messages;
using Nop.Core.Domain.Orders;
using Nop.Core.Events;
using Nop.Core.Http;
using Nop.Services.Events;
using Nop.Services.Messages;
using Nop.Web.Framework;
using Nop.Web.Framework.Events;
using Nop.Web.Framework.Models;
using Nop.Web.Models.Catalog;

namespace Nop.Plugin.Widgets.FacebookPixel.Services;

/// <summary>
/// Represents plugin event consumer
/// </summary>
public class EventConsumer :
    IConsumer<CustomerRegisteredEvent>,
    IConsumer<EntityInsertedEvent<ShoppingCartItem>>,
    IConsumer<MessageTokensAddedEvent>,
    IConsumer<ModelPreparedEvent<BaseNopModel>>,
    IConsumer<OrderPlacedEvent>,
    IConsumer<PageRenderingEvent>,
    IConsumer<ProductSearchEvent>
{
    #region Fields

    protected readonly FacebookPixelService _facebookPixelService;
    protected readonly IHttpContextAccessor _httpContextAccessor;

    #endregion

    #region Ctor

    public EventConsumer(FacebookPixelService facebookPixelService,
        IHttpContextAccessor httpContextAccessor)
    {
        _facebookPixelService = facebookPixelService;
        _httpContextAccessor = httpContextAccessor;
    }

    #endregion

    #region Methods

    /// <summary>
    /// Handle shopping cart item inserted event
    /// </summary>
    /// <param name="eventMessage">Event message</param>
    /// <returns>A task that represents the asynchronous operation</returns>
    public async Task HandleEventAsync(EntityInsertedEvent<ShoppingCartItem> eventMessage)
    {
        if (eventMessage?.Entity != null)
            await _facebookPixelService.SendAddToCartEventAsync(eventMessage.Entity);
    }

    /// <summary>
    /// Handle order placed event
    /// </summary>
    /// <param name="eventMessage">Event message</param>
    /// <returns>A task that represents the asynchronous operation</returns>
    public async Task HandleEventAsync(OrderPlacedEvent eventMessage)
    {
        if (eventMessage?.Order != null)
            await _facebookPixelService.SendPurchaseEventAsync(eventMessage.Order);
    }

    /// <summary>
    /// Handle product details model prepared event
    /// </summary>
    /// <param name="eventMessage">Event message</param>
    /// <returns>A task that represents the asynchronous operation</returns>
    public async Task HandleEventAsync(ModelPreparedEvent<BaseNopModel> eventMessage)
    {
        if (eventMessage?.Model is ProductDetailsModel productDetailsModel)
            await _facebookPixelService.SendViewContentEventAsync(productDetailsModel);
    }

    /// <summary>
    /// Handle page rendering event
    /// </summary>
    /// <param name="eventMessage">Event message</param>
    /// <returns>A task that represents the asynchronous operation</returns>
    public async Task HandleEventAsync(PageRenderingEvent eventMessage)
    {
        var routeName = eventMessage.GetRouteName() ?? string.Empty;
        if (routeName == NopRouteNames.Standard.CHECKOUT || routeName == NopRouteNames.Standard.CHECKOUT_ONE_PAGE)
            await _facebookPixelService.SendInitiateCheckoutEventAsync();

        if (_httpContextAccessor.HttpContext.GetRouteValue("area") is not string area || area != AreaNames.ADMIN)
            await _facebookPixelService.SendPageViewEventAsync();
    }

    /// <summary>
    /// Handle product search event
    /// </summary>
    /// <param name="eventMessage">Event message</param>
    /// <returns>A task that represents the asynchronous operation</returns>
    public async Task HandleEventAsync(ProductSearchEvent eventMessage)
    {
        if (eventMessage?.SearchTerm != null)
            await _facebookPixelService.SendSearchEventAsync(eventMessage.SearchTerm);
    }

    /// <summary>
    /// Handle message token added event
    /// </summary>
    /// <param name="eventMessage">Event message</param>
    /// <returns>A task that represents the asynchronous operation</returns>
    public async Task HandleEventAsync(MessageTokensAddedEvent eventMessage)
    {
        if (eventMessage?.Message?.Name == MessageTemplateSystemNames.CONTACT_US_MESSAGE)
            await _facebookPixelService.SendContactEventAsync();
    }

    /// <summary>
    /// Handle customer registered event
    /// </summary>
    /// <param name="eventMessage">Event message</param>
    /// <returns>A task that represents the asynchronous operation</returns>
    public async Task HandleEventAsync(CustomerRegisteredEvent eventMessage)
    {
        if (eventMessage?.Customer != null)
            await _facebookPixelService.SendCompleteRegistrationEventAsync();
    }

    #endregion
}