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CategoryService.cs

using Nop.Core;
using Nop.Core.Caching;
using Nop.Core.Domain.Catalog;
using Nop.Core.Domain.Customers;
using Nop.Core.Domain.Discounts;
using Nop.Data;
using Nop.Services.Customers;
using Nop.Services.Discounts;
using Nop.Services.Localization;
using Nop.Services.Security;
using Nop.Services.Stores;

namespace Nop.Services.Catalog;

/// 
/// Category service
/// 
public partial class CategoryService : ICategoryService
{
    #region Fields

    protected readonly IAclService _aclService;
    protected readonly ICustomerService _customerService;
    protected readonly ILocalizationService _localizationService;
    protected readonly IRepository _categoryRepository;
    protected readonly IRepository _discountCategoryMappingRepository;
    protected readonly IRepository _productRepository;
    protected readonly IRepository _productCategoryRepository;
    protected readonly IStaticCacheManager _staticCacheManager;
    protected readonly IStoreContext _storeContext;
    protected readonly IStoreMappingService _storeMappingService;
    protected readonly IWorkContext _workContext;

    #endregion

    #region Ctor

    public CategoryService(
        IAclService aclService,
        ICustomerService customerService,
        ILocalizationService localizationService,
        IRepository categoryRepository,
        IRepository discountCategoryMappingRepository,
        IRepository productRepository,
        IRepository productCategoryRepository,
        IStaticCacheManager staticCacheManager,
        IStoreContext storeContext,
        IStoreMappingService storeMappingService,
        IWorkContext workContext)
    {
        _aclService = aclService;
        _customerService = customerService;
        _localizationService = localizationService;
        _categoryRepository = categoryRepository;
        _discountCategoryMappingRepository = discountCategoryMappingRepository;
        _productRepository = productRepository;
        _productCategoryRepository = productCategoryRepository;
        _staticCacheManager = staticCacheManager;
        _storeContext = storeContext;
        _storeMappingService = storeMappingService;
        _workContext = workContext;
    }

    #endregion

    #region Utilities

    /// 
    /// Gets a product category mapping collection
    /// 
    /// Product identifier
    /// Store identifier (used in multi-store environment). "showHidden" parameter should also be "true"
    ///  A value indicating whether to show hidden records
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the product category mapping collection
    /// 
    protected virtual async Task> GetProductCategoriesByProductIdAsync(int productId, int storeId,
        bool showHidden = false)
    {
        if (productId == 0)
            return new List();

        var customer = await _workContext.GetCurrentCustomerAsync();
        var customerRoleIds = await _customerService.GetCustomerRoleIdsAsync(customer);

        return await _productCategoryRepository.GetAllAsync(async query =>
        {
            if (!showHidden)
            {
                var categoriesQuery = _categoryRepository.Table.Where(c => c.Published);

                //apply store mapping constraints
                categoriesQuery = await _storeMappingService.ApplyStoreMapping(categoriesQuery, storeId);

                //apply ACL constraints
                categoriesQuery = await _aclService.ApplyAcl(categoriesQuery, customerRoleIds);

                query = query.Where(pc => categoriesQuery.Any(c => !c.Deleted && c.Id == pc.CategoryId));
            }

            return query
                .Where(pc => pc.ProductId == productId)
                .OrderBy(pc => pc.DisplayOrder)
                .ThenBy(pc => pc.Id);

        }, cache => _staticCacheManager.PrepareKeyForDefaultCache(NopCatalogDefaults.ProductCategoriesByProductCacheKey,
            productId, showHidden, customerRoleIds, storeId));
    }

    /// 
    /// Sort categories for tree representation
    /// 
    /// Categories for sort
    /// Parent category identifier
    /// A value indicating whether categories without parent category in provided category list (source) should be ignored
    /// 
    /// An enumerable containing the sorted categories
    /// 
    protected virtual IEnumerable SortCategoriesForTree(
        ILookup categoriesByParentId,
        int parentId = 0,
        bool ignoreCategoriesWithoutExistingParent = false)
    {
        ArgumentNullException.ThrowIfNull(categoriesByParentId);            

        var remaining = parentId > 0
            ? new HashSet(0)
            : categoriesByParentId.Select(g => g.Key).ToHashSet();
        remaining.Remove(parentId);

        foreach (var cat in categoriesByParentId[parentId].OrderBy(c => c.DisplayOrder).ThenBy(c => c.Id))
        {
            yield return cat;

            remaining.Remove(cat.Id);
                
            foreach (var subCategory in SortCategoriesForTree(categoriesByParentId, cat.Id, true))
            {
                yield return subCategory;
                remaining.Remove(subCategory.Id);
            }
        }

        if (ignoreCategoriesWithoutExistingParent)
            yield break;

        //find categories without parent in provided category source and return them
        var orphans = remaining
            .SelectMany(id => categoriesByParentId[id])
            .OrderBy(c => c.ParentCategoryId)
            .ThenBy(c => c.DisplayOrder)
            .ThenBy(c => c.Id);
            
        foreach (var orphan in orphans)
            yield return orphan;
    }

    #endregion

    #region Methods

    /// 
    /// Clean up category references for a  specified discount
    /// 
    /// Discount
    /// A task that represents the asynchronous operation
    public virtual async Task ClearDiscountCategoryMappingAsync(Discount discount)
    {
        ArgumentNullException.ThrowIfNull(discount);

        var mappings = _discountCategoryMappingRepository.Table.Where(dcm => dcm.DiscountId == discount.Id);

        await _discountCategoryMappingRepository.DeleteAsync(mappings.ToList());
    }

    /// 
    /// Delete category
    /// 
    /// Category
    /// A task that represents the asynchronous operation
    public virtual async Task DeleteCategoryAsync(Category category)
    {
        await _categoryRepository.DeleteAsync(category);

        //reset a "Parent category" property of all child subcategories
        var subcategories = await GetAllCategoriesByParentCategoryIdAsync(category.Id, true);
        foreach (var subcategory in subcategories)
        {
            subcategory.ParentCategoryId = 0;
            await UpdateCategoryAsync(subcategory);
        }
    }

    /// 
    /// Delete Categories
    /// 
    /// Categories
    /// A task that represents the asynchronous operation
    public virtual async Task DeleteCategoriesAsync(IList categories)
    {
        ArgumentNullException.ThrowIfNull(categories);

        foreach (var category in categories)
            await DeleteCategoryAsync(category);
    }

    /// 
    /// Gets all categories
    /// 
    /// Store identifier; 0 if you want to get all records
    /// A value indicating whether to show hidden records
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the categories
    /// 
    public virtual async Task> GetAllCategoriesAsync(int storeId = 0, bool showHidden = false)
    {
        var key = _staticCacheManager.PrepareKeyForDefaultCache(NopCatalogDefaults.CategoriesAllCacheKey,
            storeId,
            await _customerService.GetCustomerRoleIdsAsync(await _workContext.GetCurrentCustomerAsync()),
            showHidden);

        var categories = await _staticCacheManager
            .GetAsync(key, async () => (await GetAllCategoriesAsync(string.Empty, storeId, showHidden: showHidden)).ToList());

        return categories;
    }

    /// 
    /// Gets all categories
    /// 
    /// Category name
    /// Store identifier; 0 if you want to get all records
    /// Page index
    /// Page size
    /// A value indicating whether to show hidden records
    /// 
    /// null - process "Published" property according to "showHidden" parameter
    /// true - load only "Published" products
    /// false - load only "Unpublished" products
    /// 
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the categories
    /// 
    public virtual async Task> GetAllCategoriesAsync(string categoryName, int storeId = 0,
        int pageIndex = 0, int pageSize = int.MaxValue, bool showHidden = false, bool? overridePublished = null)
    {
        var unsortedCategories = await _categoryRepository.GetAllAsync(async query =>
        {
            if (!showHidden)
                query = query.Where(c => c.Published);
            else if (overridePublished.HasValue)
                query = query.Where(c => c.Published == overridePublished.Value);

            if (!showHidden || storeId > 0)
            {
                //apply store mapping constraints
                query = await _storeMappingService.ApplyStoreMapping(query, storeId);
            }

            if (!showHidden)
            {
                //apply ACL constraints
                var customer = await _workContext.GetCurrentCustomerAsync();
                query = await _aclService.ApplyAcl(query, customer);
            }

            if (!string.IsNullOrWhiteSpace(categoryName))
                query = query.Where(c => c.Name.Contains(categoryName));

            return query.Where(c => !c.Deleted);
        });

        //sort categories
        var sortedCategories = SortCategoriesForTree(unsortedCategories.ToLookup(c => c.ParentCategoryId))
            .ToList();

        //paging
        return new PagedList(sortedCategories, pageIndex, pageSize);
    }

    /// 
    /// Gets all categories filtered by parent category identifier
    /// 
    /// Parent category identifier
    /// A value indicating whether to show hidden records
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the categories
    /// 
    public virtual async Task> GetAllCategoriesByParentCategoryIdAsync(int parentCategoryId,
        bool showHidden = false)
    {
        var store = await _storeContext.GetCurrentStoreAsync();
        var customer = await _workContext.GetCurrentCustomerAsync();
        var customerRoleIds = await _customerService.GetCustomerRoleIdsAsync(customer);

        var categories = await _categoryRepository.GetAllAsync(async query =>
        {
            if (!showHidden)
            {
                query = query.Where(c => c.Published);

                //apply store mapping constraints
                query = await _storeMappingService.ApplyStoreMapping(query, store.Id);

                //apply ACL constraints
                query = await _aclService.ApplyAcl(query, customerRoleIds);
            }

            query = query.Where(c => !c.Deleted && c.ParentCategoryId == parentCategoryId);

            return query.OrderBy(c => c.DisplayOrder).ThenBy(c => c.Id);
        }, cache => cache.PrepareKeyForDefaultCache(NopCatalogDefaults.CategoriesByParentCategoryCacheKey,
            parentCategoryId, showHidden, customerRoleIds, store));

        return categories;
    }

    /// 
    /// Gets all categories displayed on the home page
    /// 
    /// A value indicating whether to show hidden records
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the categories
    /// 
    public virtual async Task> GetAllCategoriesDisplayedOnHomepageAsync(bool showHidden = false)
    {
        var categories = await _categoryRepository.GetAllAsync(query =>
        {
            return from c in query
                orderby c.DisplayOrder, c.Id
                where c.Published &&
                      !c.Deleted &&
                      c.ShowOnHomepage
                select c;
        }, cache => cache.PrepareKeyForDefaultCache(NopCatalogDefaults.CategoriesHomepageCacheKey));

        if (showHidden)
            return categories;

        var cacheKey = _staticCacheManager.PrepareKeyForDefaultCache(NopCatalogDefaults.CategoriesHomepageWithoutHiddenCacheKey,
            await _storeContext.GetCurrentStoreAsync(), await _customerService.GetCustomerRoleIdsAsync(await _workContext.GetCurrentCustomerAsync()));

        var result = await _staticCacheManager.GetAsync(cacheKey, async () =>
        {
            return await categories
                .WhereAwait(async c => await _aclService.AuthorizeAsync(c) && await _storeMappingService.AuthorizeAsync(c))
                .ToListAsync();
        });

        return result;
    }

    /// 
    /// Get category identifiers to which a discount is applied
    /// 
    /// Discount
    /// Customer
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the category identifiers
    /// 
    public virtual async Task> GetAppliedCategoryIdsAsync(Discount discount, Customer customer)
    {
        ArgumentNullException.ThrowIfNull(discount);

        var store = await _storeContext.GetCurrentStoreAsync();
        var cacheKey = _staticCacheManager.PrepareKeyForDefaultCache(NopDiscountDefaults.CategoryIdsByDiscountCacheKey,
            discount,
            await _customerService.GetCustomerRoleIdsAsync(customer),
            store);

        var result = await _staticCacheManager.GetAsync(cacheKey, async () =>
        {
            var ids = await _discountCategoryMappingRepository.Table
                .Where(dmm => dmm.DiscountId == discount.Id).Select(dmm => dmm.EntityId)
                .Distinct()
                .ToListAsync();

            if (!discount.AppliedToSubCategories)
                return ids;

            ids.AddRange(await ids.SelectManyAwait(async categoryId =>
                    await GetChildCategoryIdsAsync(categoryId, store.Id))
                .ToListAsync());

            return ids.Distinct().ToList();
        });

        return result;
    }

    /// 
    /// Gets child category identifiers
    /// 
    /// Parent category identifier
    /// Store identifier; 0 if you want to get all records
    /// A value indicating whether to show hidden records
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the category identifiers
    /// 
    public virtual async Task> GetChildCategoryIdsAsync(int parentCategoryId, int storeId = 0, bool showHidden = false)
    {
        var cacheKey = _staticCacheManager.PrepareKeyForDefaultCache(NopCatalogDefaults.CategoriesChildIdsCacheKey,
            parentCategoryId,
            await _customerService.GetCustomerRoleIdsAsync(await _workContext.GetCurrentCustomerAsync()),
            storeId,
            showHidden);

        return await _staticCacheManager.GetAsync(cacheKey, async () =>
        {
            //little hack for performance optimization
            //there's no need to invoke "GetAllCategoriesByParentCategoryId" multiple times (extra SQL commands) to load childs
            //so we load all categories at once (we know they are cached) and process them server-side
            var lookup = await _staticCacheManager.GetAsync(
                _staticCacheManager.PrepareKeyForDefaultCache(NopCatalogDefaults.ChildCategoryIdLookupCacheKey, storeId, showHidden),
                async () => (await GetAllCategoriesAsync(storeId: storeId, showHidden: showHidden))
                    .ToGroupedDictionary(c => c.ParentCategoryId, x => x.Id));

            var categoryIds = new List();
            if (lookup.TryGetValue(parentCategoryId, out var categories))
            {
                categoryIds.AddRange(categories);
                var childCategoryIds = categories.SelectAwait(async cId => await GetChildCategoryIdsAsync(cId, storeId, showHidden));
                // avoid allocating a new list or blocking with ToEnumerable
                await foreach (var cIds in childCategoryIds)
                    categoryIds.AddRange(cIds);
            }

            return categoryIds;
        });
    }

    /// 
    /// Gets a category
    /// 
    /// Category identifier
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the category
    /// 
    public virtual async Task GetCategoryByIdAsync(int categoryId)
    {
        return await _categoryRepository.GetByIdAsync(categoryId, cache => default);
    }

    /// 
    /// Get categories for which a discount is applied
    /// 
    /// Discount identifier; pass null to load all records
    /// A value indicating whether to load deleted categories
    /// Page index
    /// Page size
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the list of categories
    /// 
    public virtual async Task> GetCategoriesByAppliedDiscountAsync(int? discountId = null,
        bool showHidden = false, int pageIndex = 0, int pageSize = int.MaxValue)
    {
        var categories = _categoryRepository.Table;

        if (discountId.HasValue)
            categories = from category in categories
                join dcm in _discountCategoryMappingRepository.Table on category.Id equals dcm.EntityId
                where dcm.DiscountId == discountId.Value
                select category;

        if (!showHidden)
            categories = categories.Where(category => !category.Deleted);

        categories = categories.OrderBy(category => category.DisplayOrder).ThenBy(category => category.Id);

        return await categories.ToPagedListAsync(pageIndex, pageSize);
    }

    /// 
    /// Inserts category
    /// 
    /// Category
    /// A task that represents the asynchronous operation
    public virtual async Task InsertCategoryAsync(Category category)
    {
        await _categoryRepository.InsertAsync(category);
    }

    /// 
    /// Get a value indicating whether discount is applied to category
    /// 
    /// Category identifier
    /// Discount identifier
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the result
    /// 
    public virtual async Task GetDiscountAppliedToCategoryAsync(int categoryId, int discountId)
    {
        return await _discountCategoryMappingRepository.Table
            .FirstOrDefaultAsync(dcm => dcm.EntityId == categoryId && dcm.DiscountId == discountId);
    }

    /// 
    /// Inserts a discount-category mapping record
    /// 
    /// Discount-category mapping
    /// A task that represents the asynchronous operation
    public virtual async Task InsertDiscountCategoryMappingAsync(DiscountCategoryMapping discountCategoryMapping)
    {
        await _discountCategoryMappingRepository.InsertAsync(discountCategoryMapping);
    }

    /// 
    /// Deletes a discount-category mapping record
    /// 
    /// Discount-category mapping
    /// A task that represents the asynchronous operation
    public virtual async Task DeleteDiscountCategoryMappingAsync(DiscountCategoryMapping discountCategoryMapping)
    {
        await _discountCategoryMappingRepository.DeleteAsync(discountCategoryMapping);
    }

    /// 
    /// Updates the category
    /// 
    /// Category
    /// A task that represents the asynchronous operation
    public virtual async Task UpdateCategoryAsync(Category category)
    {
        ArgumentNullException.ThrowIfNull(category);

        //validate category hierarchy
        var parentCategory = await GetCategoryByIdAsync(category.ParentCategoryId);
        while (parentCategory != null)
        {
            if (category.Id == parentCategory.Id)
            {
                category.ParentCategoryId = 0;
                break;
            }

            parentCategory = await GetCategoryByIdAsync(parentCategory.ParentCategoryId);
        }

        await _categoryRepository.UpdateAsync(category);
    }

    /// 
    /// Deletes a product category mapping
    /// 
    /// Product category
    /// A task that represents the asynchronous operation
    public virtual async Task DeleteProductCategoryAsync(ProductCategory productCategory)
    {
        await _productCategoryRepository.DeleteAsync(productCategory);
    }

    /// 
    /// Gets product category mapping collection
    /// 
    /// Category identifier
    /// Page index
    /// Page size
    /// A value indicating whether to show hidden records
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the product a category mapping collection
    /// 
    public virtual async Task> GetProductCategoriesByCategoryIdAsync(int categoryId,
        int pageIndex = 0, int pageSize = int.MaxValue, bool showHidden = false)
    {
        if (categoryId == 0)
            return new PagedList(new List(), pageIndex, pageSize);

        var query = from pc in _productCategoryRepository.Table
            join p in _productRepository.Table on pc.ProductId equals p.Id
            where pc.CategoryId == categoryId && !p.Deleted
            orderby pc.DisplayOrder, pc.Id
            select pc;

        if (!showHidden)
        {
            var categoriesQuery = _categoryRepository.Table.Where(c => c.Published);

            //apply store mapping constraints
            var store = await _storeContext.GetCurrentStoreAsync();
            categoriesQuery = await _storeMappingService.ApplyStoreMapping(categoriesQuery, store.Id);

            //apply ACL constraints
            var customer = await _workContext.GetCurrentCustomerAsync();
            categoriesQuery = await _aclService.ApplyAcl(categoriesQuery, customer);

            query = query.Where(pc => categoriesQuery.Any(c => c.Id == pc.CategoryId));
        }

        return await query.ToPagedListAsync(pageIndex, pageSize);
    }

    /// 
    /// Gets a product category mapping collection
    /// 
    /// Product identifier
    ///  A value indicating whether to show hidden records
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the product category mapping collection
    /// 
    public virtual async Task> GetProductCategoriesByProductIdAsync(int productId, bool showHidden = false)
    {
        var store = await _storeContext.GetCurrentStoreAsync();

        return await GetProductCategoriesByProductIdAsync(productId, store.Id, showHidden);
    }

    /// 
    /// Gets a product category mapping 
    /// 
    /// Product category mapping identifier
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the product category mapping
    /// 
    public virtual async Task GetProductCategoryByIdAsync(int productCategoryId)
    {
        return await _productCategoryRepository.GetByIdAsync(productCategoryId, cache => default);
    }

    /// 
    /// Inserts a product category mapping
    /// 
    /// >Product category mapping
    /// A task that represents the asynchronous operation
    public virtual async Task InsertProductCategoryAsync(ProductCategory productCategory)
    {
        await _productCategoryRepository.InsertAsync(productCategory);
    }

    /// 
    /// Updates the product category mapping 
    /// 
    /// >Product category mapping
    /// A task that represents the asynchronous operation
    public virtual async Task UpdateProductCategoryAsync(ProductCategory productCategory)
    {
        await _productCategoryRepository.UpdateAsync(productCategory);
    }

    /// 
    /// Returns a list of names of not existing categories
    /// 
    /// The names and/or IDs of the categories to check
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the list of names and/or IDs not existing categories
    /// 
    public virtual async Task GetNotExistingCategoriesAsync(string[] categoryIdsNames)
    {
        ArgumentNullException.ThrowIfNull(categoryIdsNames);

        var query = _categoryRepository.Table.Where(c => !c.Deleted);
        var queryFilter = categoryIdsNames.Distinct().ToArray();
        //filtering by name
        var filter = await query.Select(c => c.Name)
            .Where(c => queryFilter.Contains(c))
            .ToListAsync();

        queryFilter = queryFilter.Except(filter).ToArray();

        //if some names not found
        if (!queryFilter.Any())
            return queryFilter.ToArray();

        //filtering by IDs
        filter = await query.Select(c => c.Id.ToString())
            .Where(c => queryFilter.Contains(c))
            .ToListAsync();

        return queryFilter.Except(filter).ToArray();
    }

    /// 
    /// Get category IDs for products
    /// 
    /// Products IDs
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the category IDs for products
    /// 
    public virtual async Task> GetProductCategoryIdsAsync(int[] productIds)
    {
        var query = _productCategoryRepository.Table;

        return (await query.Where(p => productIds.Contains(p.ProductId))
                .Select(p => new { p.ProductId, p.CategoryId })
                .ToListAsync())
            .GroupBy(a => a.ProductId)
            .ToDictionary(items => items.Key, items => items.Select(a => a.CategoryId).ToArray());
    }

    /// 
    /// Gets categories by identifier
    /// 
    /// Category identifiers
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the categories
    /// 
    public virtual async Task> GetCategoriesByIdsAsync(int[] categoryIds)
    {
        return await _categoryRepository.GetByIdsAsync(categoryIds, includeDeleted: false);
    }

    /// 
    /// Returns a ProductCategory that has the specified values
    /// 
    /// Source
    /// Product identifier
    /// Category identifier
    /// A ProductCategory that has the specified values; otherwise null
    public virtual ProductCategory FindProductCategory(IList source, int productId, int categoryId)
    {
        foreach (var productCategory in source)
            if (productCategory.ProductId == productId && productCategory.CategoryId == categoryId)
                return productCategory;

        return null;
    }

    /// 
    /// Get formatted category breadcrumb 
    /// Note: ACL and store mapping is ignored
    /// 
    /// Category
    /// All categories
    /// Separator
    /// Language identifier for localization
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the formatted breadcrumb
    /// 
    public virtual async Task GetFormattedBreadCrumbAsync(Category category, IList allCategories = null,
        string separator = ">>", int languageId = 0)
    {
        var result = string.Empty;

        var breadcrumb = await GetCategoryBreadCrumbAsync(category, allCategories, true);
        for (var i = 0; i <= breadcrumb.Count - 1; i++)
        {
            var categoryName = await _localizationService.GetLocalizedAsync(breadcrumb[i], x => x.Name, languageId);
            result = string.IsNullOrEmpty(result) ? categoryName : $"{result} {separator} {categoryName}";
        }

        return result;
    }

    /// 
    /// Get category breadcrumb 
    /// 
    /// Category
    /// All categories
    /// A value indicating whether to load hidden records
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the category breadcrumb 
    /// 
    public virtual async Task> GetCategoryBreadCrumbAsync(Category category, IList allCategories = null, bool showHidden = false)
    {
        ArgumentNullException.ThrowIfNull(category);

        var breadcrumbCacheKey = _staticCacheManager.PrepareKeyForDefaultCache(NopCatalogDefaults.CategoryBreadcrumbCacheKey,
            category,
            await _customerService.GetCustomerRoleIdsAsync(await _workContext.GetCurrentCustomerAsync()),
            await _storeContext.GetCurrentStoreAsync(),
            await _workContext.GetWorkingLanguageAsync(),
            showHidden);

        return await _staticCacheManager.GetAsync(breadcrumbCacheKey, async () =>
        {
            var result = new List();

            //used to prevent circular references
            var alreadyProcessedCategoryIds = new List();

            while (category != null && //not null
                   !category.Deleted && //not deleted
                   (showHidden || category.Published) && //published
                   (showHidden || await _aclService.AuthorizeAsync(category)) && //ACL
                   (showHidden || await _storeMappingService.AuthorizeAsync(category)) && //Store mapping
                   !alreadyProcessedCategoryIds.Contains(category.Id)) //prevent circular references
            {
                result.Add(category);

                alreadyProcessedCategoryIds.Add(category.Id);

                category = allCategories != null
                    ? allCategories.FirstOrDefault(c => c.Id == category.ParentCategoryId)
                    : await GetCategoryByIdAsync(category.ParentCategoryId);
            }

            result.Reverse();

            return result;
        });
    }

    #endregion
}