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BlogController.cs

using Microsoft.AspNetCore.Mvc;
using Nop.Core.Domain.Blogs;
using Nop.Core.Events;
using Nop.Services.Blogs;
using Nop.Services.Localization;
using Nop.Services.Logging;
using Nop.Services.Messages;
using Nop.Services.Security;
using Nop.Services.Seo;
using Nop.Services.Stores;
using Nop.Web.Areas.Admin.Factories;
using Nop.Web.Areas.Admin.Infrastructure.Mapper.Extensions;
using Nop.Web.Areas.Admin.Models.Blogs;
using Nop.Web.Framework.Mvc;
using Nop.Web.Framework.Mvc.Filters;

namespace Nop.Web.Areas.Admin.Controllers;

public partial class BlogController : BaseAdminController
{
    #region Fields

    protected readonly IBlogModelFactory _blogModelFactory;
    protected readonly IBlogService _blogService;
    protected readonly ICustomerActivityService _customerActivityService;
    protected readonly IEventPublisher _eventPublisher;
    protected readonly ILocalizationService _localizationService;
    protected readonly INotificationService _notificationService;
    protected readonly IPermissionService _permissionService;
    protected readonly IStoreMappingService _storeMappingService;
    protected readonly IStoreService _storeService;
    protected readonly IUrlRecordService _urlRecordService;

    #endregion

    #region Ctor

    public BlogController(IBlogModelFactory blogModelFactory,
        IBlogService blogService,
        ICustomerActivityService customerActivityService,
        IEventPublisher eventPublisher,
        ILocalizationService localizationService,
        INotificationService notificationService,
        IPermissionService permissionService,
        IStoreMappingService storeMappingService,
        IStoreService storeService,
        IUrlRecordService urlRecordService)
    {
        _blogModelFactory = blogModelFactory;
        _blogService = blogService;
        _customerActivityService = customerActivityService;
        _eventPublisher = eventPublisher;
        _localizationService = localizationService;
        _notificationService = notificationService;
        _permissionService = permissionService;
        _storeMappingService = storeMappingService;
        _storeService = storeService;
        _urlRecordService = urlRecordService;
    }

    #endregion

    #region Utilities

    protected virtual async Task SaveStoreMappingsAsync(BlogPost blogPost, BlogPostModel model)
    {
        blogPost.LimitedToStores = model.SelectedStoreIds.Any();
        await _blogService.UpdateBlogPostAsync(blogPost);

        var existingStoreMappings = await _storeMappingService.GetStoreMappingsAsync(blogPost);
        var allStores = await _storeService.GetAllStoresAsync();
        foreach (var store in allStores)
        {
            if (model.SelectedStoreIds.Contains(store.Id))
            {
                //new store
                if (!existingStoreMappings.Any(sm => sm.StoreId == store.Id))
                    await _storeMappingService.InsertStoreMappingAsync(blogPost, store.Id);
            }
            else
            {
                //remove store
                var storeMappingToDelete = existingStoreMappings.FirstOrDefault(sm => sm.StoreId == store.Id);
                if (storeMappingToDelete != null)
                    await _storeMappingService.DeleteStoreMappingAsync(storeMappingToDelete);
            }
        }
    }

    #endregion

    #region Methods        

    #region Blog posts

    public virtual IActionResult Index()
    {
        return RedirectToAction("BlogPosts");
    }

    public virtual async Task BlogPosts(int? filterByBlogPostId)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return AccessDeniedView();

        //prepare model
        var model = await _blogModelFactory.PrepareBlogContentModelAsync(new BlogContentModel(), filterByBlogPostId);

        return View(model);
    }

    [HttpPost]
    public virtual async Task List(BlogPostSearchModel searchModel)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return await AccessDeniedDataTablesJson();

        //prepare model
        var model = await _blogModelFactory.PrepareBlogPostListModelAsync(searchModel);

        return Json(model);
    }

    public virtual async Task BlogPostCreate()
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return AccessDeniedView();

        //prepare model
        var model = await _blogModelFactory.PrepareBlogPostModelAsync(new BlogPostModel(), null);

        return View(model);
    }

    [HttpPost, ParameterBasedOnFormName("save-continue", "continueEditing")]
    public virtual async Task BlogPostCreate(BlogPostModel model, bool continueEditing)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return AccessDeniedView();

        if (ModelState.IsValid)
        {
            var blogPost = model.ToEntity();
            blogPost.CreatedOnUtc = DateTime.UtcNow;
            await _blogService.InsertBlogPostAsync(blogPost);

            //activity log
            await _customerActivityService.InsertActivityAsync("AddNewBlogPost",
                string.Format(await _localizationService.GetResourceAsync("ActivityLog.AddNewBlogPost"), blogPost.Id), blogPost);

            //search engine name
            var seName = await _urlRecordService.ValidateSeNameAsync(blogPost, model.SeName, model.Title, true);
            await _urlRecordService.SaveSlugAsync(blogPost, seName, blogPost.LanguageId);

            //Stores
            await SaveStoreMappingsAsync(blogPost, model);

            _notificationService.SuccessNotification(await _localizationService.GetResourceAsync("Admin.ContentManagement.Blog.BlogPosts.Added"));

            if (!continueEditing)
                return RedirectToAction("BlogPosts");

            return RedirectToAction("BlogPostEdit", new { id = blogPost.Id });
        }

        //prepare model
        model = await _blogModelFactory.PrepareBlogPostModelAsync(model, null, true);

        //if we got this far, something failed, redisplay form
        return View(model);
    }

    public virtual async Task BlogPostEdit(int id)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return AccessDeniedView();

        //try to get a blog post with the specified id
        var blogPost = await _blogService.GetBlogPostByIdAsync(id);
        if (blogPost == null)
            return RedirectToAction("BlogPosts");

        //prepare model
        var model = await _blogModelFactory.PrepareBlogPostModelAsync(null, blogPost);

        return View(model);
    }

    [HttpPost, ParameterBasedOnFormName("save-continue", "continueEditing")]
    public virtual async Task BlogPostEdit(BlogPostModel model, bool continueEditing)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return AccessDeniedView();

        //try to get a blog post with the specified id
        var blogPost = await _blogService.GetBlogPostByIdAsync(model.Id);
        if (blogPost == null)
            return RedirectToAction("BlogPosts");

        if (ModelState.IsValid)
        {
            blogPost = model.ToEntity(blogPost);
            await _blogService.UpdateBlogPostAsync(blogPost);

            //activity log
            await _customerActivityService.InsertActivityAsync("EditBlogPost",
                string.Format(await _localizationService.GetResourceAsync("ActivityLog.EditBlogPost"), blogPost.Id), blogPost);

            //search engine name
            var seName = await _urlRecordService.ValidateSeNameAsync(blogPost, model.SeName, model.Title, true);
            await _urlRecordService.SaveSlugAsync(blogPost, seName, blogPost.LanguageId);

            //Stores
            await SaveStoreMappingsAsync(blogPost, model);

            _notificationService.SuccessNotification(await _localizationService.GetResourceAsync("Admin.ContentManagement.Blog.BlogPosts.Updated"));

            if (!continueEditing)
                return RedirectToAction("BlogPosts");

            return RedirectToAction("BlogPostEdit", new { id = blogPost.Id });
        }

        //prepare model
        model = await _blogModelFactory.PrepareBlogPostModelAsync(model, blogPost, true);

        //if we got this far, something failed, redisplay form
        return View(model);
    }

    [HttpPost]
    public virtual async Task Delete(int id)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return AccessDeniedView();

        //try to get a blog post with the specified id
        var blogPost = await _blogService.GetBlogPostByIdAsync(id);
        if (blogPost == null)
            return RedirectToAction("BlogPosts");

        await _blogService.DeleteBlogPostAsync(blogPost);

        //activity log
        await _customerActivityService.InsertActivityAsync("DeleteBlogPost",
            string.Format(await _localizationService.GetResourceAsync("ActivityLog.DeleteBlogPost"), blogPost.Id), blogPost);

        _notificationService.SuccessNotification(await _localizationService.GetResourceAsync("Admin.ContentManagement.Blog.BlogPosts.Deleted"));

        return RedirectToAction("BlogPosts");
    }

    #endregion

    #region Comments

    public virtual async Task BlogComments(int? filterByBlogPostId)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return AccessDeniedView();

        //try to get a blog post with the specified id
        var blogPost = await _blogService.GetBlogPostByIdAsync(filterByBlogPostId ?? 0);
        if (blogPost == null && filterByBlogPostId.HasValue)
            return RedirectToAction("BlogComments");

        //prepare model
        var model = await _blogModelFactory.PrepareBlogCommentSearchModelAsync(new BlogCommentSearchModel(), blogPost);

        return View(model);
    }

    [HttpPost]
    public virtual async Task Comments(BlogCommentSearchModel searchModel)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return await AccessDeniedDataTablesJson();

        //prepare model
        var model = await _blogModelFactory.PrepareBlogCommentListModelAsync(searchModel, searchModel.BlogPostId);

        return Json(model);
    }

    [HttpPost]
    public virtual async Task CommentUpdate(BlogCommentModel model)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return await AccessDeniedDataTablesJson();

        //try to get a blog comment with the specified id
        var comment = await _blogService.GetBlogCommentByIdAsync(model.Id)
            ?? throw new ArgumentException("No comment found with the specified id");

        var previousIsApproved = comment.IsApproved;

        //fill entity from model
        comment = model.ToEntity(comment);

        await _blogService.UpdateBlogCommentAsync(comment);

        //raise event (only if it wasn't approved before and is approved now)
        if (!previousIsApproved && comment.IsApproved)
            await _eventPublisher.PublishAsync(new BlogCommentApprovedEvent(comment));

        //activity log
        await _customerActivityService.InsertActivityAsync("EditBlogComment",
            string.Format(await _localizationService.GetResourceAsync("ActivityLog.EditBlogComment"), comment.Id), comment);

        return new NullJsonResult();
    }

    public virtual async Task CommentDelete(int id)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return await AccessDeniedDataTablesJson();

        //try to get a blog comment with the specified id
        var comment = await _blogService.GetBlogCommentByIdAsync(id)
            ?? throw new ArgumentException("No comment found with the specified id", nameof(id));

        await _blogService.DeleteBlogCommentAsync(comment);

        //activity log
        await _customerActivityService.InsertActivityAsync("DeleteBlogPostComment",
            string.Format(await _localizationService.GetResourceAsync("ActivityLog.DeleteBlogPostComment"), comment.Id), comment);

        return new NullJsonResult();
    }

    [HttpPost]
    public virtual async Task DeleteSelectedComments(ICollection selectedIds)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return await AccessDeniedDataTablesJson();

        if (selectedIds == null || !selectedIds.Any())
            return NoContent();

        var comments = await _blogService.GetBlogCommentsByIdsAsync(selectedIds.ToArray());

        await _blogService.DeleteBlogCommentsAsync(comments);
        //activity log
        foreach (var blogComment in comments)
        {
            await _customerActivityService.InsertActivityAsync("DeleteBlogPostComment",
                string.Format(await _localizationService.GetResourceAsync("ActivityLog.DeleteBlogPostComment"), blogComment.Id), blogComment);
        }

        return Json(new { Result = true });
    }

    [HttpPost]
    public virtual async Task ApproveSelected(ICollection selectedIds)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return await AccessDeniedDataTablesJson();

        if (selectedIds == null || !selectedIds.Any())
            return NoContent();

        //filter not approved comments
        var blogComments = (await _blogService.GetBlogCommentsByIdsAsync(selectedIds.ToArray())).Where(comment => !comment.IsApproved);

        foreach (var blogComment in blogComments)
        {
            blogComment.IsApproved = true;

            await _blogService.UpdateBlogCommentAsync(blogComment);

            //raise event 
            await _eventPublisher.PublishAsync(new BlogCommentApprovedEvent(blogComment));

            //activity log
            await _customerActivityService.InsertActivityAsync("EditBlogComment",
                string.Format(await _localizationService.GetResourceAsync("ActivityLog.EditBlogComment"), blogComment.Id), blogComment);
        }

        return Json(new { Result = true });
    }

    [HttpPost]
    public virtual async Task DisapproveSelected(ICollection selectedIds)
    {
        if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageBlog))
            return await AccessDeniedDataTablesJson();

        if (selectedIds == null || !selectedIds.Any())
            return NoContent();

        //filter approved comments
        var blogComments = (await _blogService.GetBlogCommentsByIdsAsync(selectedIds.ToArray())).Where(comment => comment.IsApproved);

        foreach (var blogComment in blogComments)
        {
            blogComment.IsApproved = false;

            await _blogService.UpdateBlogCommentAsync(blogComment);

            //activity log
            await _customerActivityService.InsertActivityAsync("EditBlogComment",
                string.Format(await _localizationService.GetResourceAsync("ActivityLog.EditBlogComment"), blogComment.Id), blogComment);
        }

        return Json(new { Result = true });
    }

    #endregion

    #endregion
}