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BlogModelFactory.cs

using System.Text;
using System.Text.Encodings.Web;
using Microsoft.AspNetCore.Mvc.Rendering;
using Nop.Core.Domain.Blogs;
using Nop.Core.Domain.Catalog;
using Nop.Core.Domain.Customers;
using Nop.Services.Blogs;
using Nop.Services.Customers;
using Nop.Services.Helpers;
using Nop.Services.Html;
using Nop.Services.Localization;
using Nop.Services.Seo;
using Nop.Services.Stores;
using Nop.Web.Areas.Admin.Infrastructure.Mapper.Extensions;
using Nop.Web.Areas.Admin.Models.Blogs;
using Nop.Web.Framework.Extensions;
using Nop.Web.Framework.Factories;
using Nop.Web.Framework.Models.Extensions;

namespace Nop.Web.Areas.Admin.Factories;

/// 
/// Represents the blog model factory implementation
/// 
public partial class BlogModelFactory : IBlogModelFactory
{
    #region Fields

    protected readonly CatalogSettings _catalogSettings;
    protected readonly IBaseAdminModelFactory _baseAdminModelFactory;
    protected readonly IBlogService _blogService;
    protected readonly ICustomerService _customerService;
    protected readonly IDateTimeHelper _dateTimeHelper;
    protected readonly IHtmlFormatter _htmlFormatter;
    protected readonly ILanguageService _languageService;
    protected readonly ILocalizationService _localizationService;
    protected readonly IStoreMappingSupportedModelFactory _storeMappingSupportedModelFactory;
    protected readonly IStoreService _storeService;
    protected readonly IUrlRecordService _urlRecordService;

    #endregion

    #region Ctor

    public BlogModelFactory(CatalogSettings catalogSettings,
        IBaseAdminModelFactory baseAdminModelFactory,
        IBlogService blogService,
        ICustomerService customerService,
        IDateTimeHelper dateTimeHelper,
        IHtmlFormatter htmlFormatter,
        ILanguageService languageService,
        ILocalizationService localizationService,
        IStoreMappingSupportedModelFactory storeMappingSupportedModelFactory,
        IStoreService storeService,
        IUrlRecordService urlRecordService)
    {
        _catalogSettings = catalogSettings;
        _baseAdminModelFactory = baseAdminModelFactory;
        _blogService = blogService;
        _customerService = customerService;
        _dateTimeHelper = dateTimeHelper;
        _htmlFormatter = htmlFormatter;
        _languageService = languageService;
        _localizationService = localizationService;
        _storeMappingSupportedModelFactory = storeMappingSupportedModelFactory;
        _storeService = storeService;
        _urlRecordService = urlRecordService;
    }

    #endregion

    #region Methods

    /// 
    /// Prepare blog content model
    /// 
    /// Blog content model
    /// Blog post ID
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the blog content model
    /// 
    public virtual async Task PrepareBlogContentModelAsync(BlogContentModel blogContentModel, int? filterByBlogPostId)
    {
        ArgumentNullException.ThrowIfNull(blogContentModel);

        //prepare nested search models
        await PrepareBlogPostSearchModelAsync(blogContentModel.BlogPosts);
        var blogPost = await _blogService.GetBlogPostByIdAsync(filterByBlogPostId ?? 0);
        await PrepareBlogCommentSearchModelAsync(blogContentModel.BlogComments, blogPost);

        return blogContentModel;
    }

    /// 
    /// Prepare paged blog post list model
    /// 
    /// Blog post search model
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the blog post list model
    /// 
    public virtual async Task PrepareBlogPostListModelAsync(BlogPostSearchModel searchModel)
    {
        ArgumentNullException.ThrowIfNull(searchModel);

        //get blog posts
        var blogPosts = await _blogService.GetAllBlogPostsAsync(storeId: searchModel.SearchStoreId, showHidden: true,
            pageIndex: searchModel.Page - 1, pageSize: searchModel.PageSize, title: searchModel.SearchTitle);

        //prepare list model
        var model = await new BlogPostListModel().PrepareToGridAsync(searchModel, blogPosts, () =>
        {
            return blogPosts.SelectAwait(async blogPost =>
            {
                //fill in model values from the entity
                var blogPostModel = blogPost.ToModel();

                //little performance optimization: ensure that "Body" is not returned
                blogPostModel.Body = string.Empty;

                //convert dates to the user time
                if (blogPost.StartDateUtc.HasValue)
                    blogPostModel.StartDateUtc = await _dateTimeHelper.ConvertToUserTimeAsync(blogPost.StartDateUtc.Value, DateTimeKind.Utc);
                if (blogPost.EndDateUtc.HasValue)
                    blogPostModel.EndDateUtc = await _dateTimeHelper.ConvertToUserTimeAsync(blogPost.EndDateUtc.Value, DateTimeKind.Utc);
                blogPostModel.CreatedOn = await _dateTimeHelper.ConvertToUserTimeAsync(blogPost.CreatedOnUtc, DateTimeKind.Utc);

                //fill in additional values (not existing in the entity)
                blogPostModel.LanguageName = (await _languageService.GetLanguageByIdAsync(blogPost.LanguageId))?.Name;
                blogPostModel.ApprovedComments = await _blogService.GetBlogCommentsCountAsync(blogPost, isApproved: true);
                blogPostModel.NotApprovedComments = await _blogService.GetBlogCommentsCountAsync(blogPost, isApproved: false);
                blogPostModel.SeName = await _urlRecordService.GetSeNameAsync(blogPost, blogPost.LanguageId, true, false);

                return blogPostModel;
            });
        });

        return model;
    }

    /// 
    /// Prepare blog post model
    /// 
    /// Blog post model
    /// Blog post
    /// Whether to exclude populating of some properties of model
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the blog post model
    /// 
    public virtual async Task PrepareBlogPostModelAsync(BlogPostModel model, BlogPost blogPost, bool excludeProperties = false)
    {
        //fill in model values from the entity
        if (blogPost != null)
        {
            if (model == null)
            {
                model = blogPost.ToModel();
                model.SeName = await _urlRecordService.GetSeNameAsync(blogPost, blogPost.LanguageId, true, false);
            }
            model.StartDateUtc = blogPost.StartDateUtc;
            model.EndDateUtc = blogPost.EndDateUtc;
        }

        //set default values for the new model
        if (blogPost == null)
        {
            model.AllowComments = true;
            model.IncludeInSitemap = true;
        }

        var blogTags = await _blogService.GetAllBlogPostTagsAsync(0, 0, true);
        var blogTagsSb = new StringBuilder();
        blogTagsSb.Append("var initialBlogTags = [");
        for (var i = 0; i < blogTags.Count; i++)
        {
            var tag = blogTags[i];
            blogTagsSb.Append('\'');
            blogTagsSb.Append(JavaScriptEncoder.Default.Encode(tag.Name));
            blogTagsSb.Append('\'');
            if (i != blogTags.Count - 1)
                blogTagsSb.Append(',');
        }
        blogTagsSb.Append(']');

        model.InitialBlogTags = blogTagsSb.ToString();

        //prepare available languages
        await _baseAdminModelFactory.PrepareLanguagesAsync(model.AvailableLanguages, false);

        //prepare available stores
        await _storeMappingSupportedModelFactory.PrepareModelStoresAsync(model, blogPost, excludeProperties);

        return model;
    }

    /// 
    /// Prepare blog comment search model
    /// 
    /// Blog comment search model
    /// Blog post
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the blog comment search model
    /// 
    public virtual async Task PrepareBlogCommentSearchModelAsync(BlogCommentSearchModel searchModel, BlogPost blogPost)
    {
        ArgumentNullException.ThrowIfNull(searchModel);

        //prepare "approved" property (0 - all; 1 - approved only; 2 - disapproved only)
        searchModel.AvailableApprovedOptions.Add(new SelectListItem
        {
            Text = await _localizationService.GetResourceAsync("Admin.ContentManagement.Blog.Comments.List.SearchApproved.All"),
            Value = "0"
        });
        searchModel.AvailableApprovedOptions.Add(new SelectListItem
        {
            Text = await _localizationService.GetResourceAsync("Admin.ContentManagement.Blog.Comments.List.SearchApproved.ApprovedOnly"),
            Value = "1"
        });
        searchModel.AvailableApprovedOptions.Add(new SelectListItem
        {
            Text = await _localizationService.GetResourceAsync("Admin.ContentManagement.Blog.Comments.List.SearchApproved.DisapprovedOnly"),
            Value = "2"
        });

        searchModel.BlogPostId = blogPost?.Id;

        //prepare page parameters
        searchModel.SetGridPageSize();

        return searchModel;
    }

    /// 
    /// Prepare paged blog comment list model
    /// 
    /// Blog comment search model
    /// Blog post ID
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the blog comment list model
    /// 
    public virtual async Task PrepareBlogCommentListModelAsync(BlogCommentSearchModel searchModel, int? blogPostId)
    {
        ArgumentNullException.ThrowIfNull(searchModel);

        //get parameters to filter comments
        var createdOnFromValue = searchModel.CreatedOnFrom == null ? null
            : (DateTime?)_dateTimeHelper.ConvertToUtcTime(searchModel.CreatedOnFrom.Value, await _dateTimeHelper.GetCurrentTimeZoneAsync());
        var createdOnToValue = searchModel.CreatedOnTo == null ? null
            : (DateTime?)_dateTimeHelper.ConvertToUtcTime(searchModel.CreatedOnTo.Value, await _dateTimeHelper.GetCurrentTimeZoneAsync()).AddDays(1);
        var isApprovedOnly = searchModel.SearchApprovedId == 0 ? null : searchModel.SearchApprovedId == 1 ? true : (bool?)false;

        //get comments
        var comments = (await _blogService.GetAllCommentsAsync(blogPostId: blogPostId,
            approved: isApprovedOnly,
            fromUtc: createdOnFromValue,
            toUtc: createdOnToValue,
            commentText: searchModel.SearchText)).ToPagedList(searchModel);

        //prepare store names (to avoid loading for each comment)
        var storeNames = (await _storeService.GetAllStoresAsync())
            .ToDictionary(store => store.Id, store => store.Name);

        //prepare list model
        var model = await new BlogCommentListModel().PrepareToGridAsync(searchModel, comments, () =>
        {
            return comments.SelectAwait(async blogComment =>
            {
                //fill in model values from the entity
                var commentModel = blogComment.ToModel();

                //set title from linked blog post
                commentModel.BlogPostTitle = (await _blogService.GetBlogPostByIdAsync(blogComment.BlogPostId))?.Title;

                if ((await _customerService.GetCustomerByIdAsync(blogComment.CustomerId)) is Customer customer)
                {
                    commentModel.CustomerInfo = (await _customerService.IsRegisteredAsync(customer))
                        ? customer.Email
                        : await _localizationService.GetResourceAsync("Admin.Customers.Guest");
                }
                //fill in additional values (not existing in the entity)
                commentModel.CreatedOn = await _dateTimeHelper.ConvertToUserTimeAsync(blogComment.CreatedOnUtc, DateTimeKind.Utc);
                commentModel.Comment = _htmlFormatter.FormatText(blogComment.CommentText, false, true, false, false, false, false);
                commentModel.StoreName = storeNames.TryGetValue(blogComment.StoreId, out var value) ? value : "Deleted";

                return commentModel;
            });
        });

        return model;
    }

    /// 
    /// Prepare blog post search model
    /// 
    /// Blog post search model
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the blog post search model
    /// 
    public virtual async Task PrepareBlogPostSearchModelAsync(BlogPostSearchModel searchModel)
    {
        ArgumentNullException.ThrowIfNull(searchModel);

        //prepare available stores
        await _baseAdminModelFactory.PrepareStoresAsync(searchModel.AvailableStores);

        searchModel.HideStoresList = _catalogSettings.IgnoreStoreLimitations || searchModel.AvailableStores.SelectionIsNotPossible();

        //prepare page parameters
        searchModel.SetGridPageSize();

        return searchModel;
    }

    #endregion
}