Increase or decrease user answers count

Author: lucabriguglia

src/Atles.Domain.Commands.Handlers/Posts/SetReplyAsAnswerHandler.cs

@@ -25,6 +25,7 @@ public async Task<IEnumerable<IEvent>> Handle(SetReplyAsAnswer command)
         {
             var reply = await _dbContext.Posts
                 .Include(x => x.Topic)
+                .Include(x => x.CreatedByUser)
                 .FirstOrDefaultAsync(x =>
                     x.Id == command.ReplyId &&
                     x.TopicId == command.TopicId &&
@@ -38,7 +39,17 @@ public async Task<IEnumerable<IEvent>> Handle(SetReplyAsAnswer command)
             }
 
             reply.SetAsAnswer(command.IsAnswer);
+            reply.Topic.SetAsAnswered(command.IsAnswer);
 
+            if (command.IsAnswer)
+            {
+                reply.CreatedByUser.IncreaseAnswersCount();
+            }
+            else
+            {
+                reply.CreatedByUser.DecreaseAnswersCount();
+            }
+            
             var @event = new ReplySetAsAnswer
             {
                 IsAnswer = reply.IsAnswer,
@@ -50,8 +61,6 @@ public async Task<IEnumerable<IEvent>> Handle(SetReplyAsAnswer command)
 
             _dbContext.Events.Add(@event.ToDbEntity());
 
-            reply.Topic.SetAsAnswered(command.IsAnswer);
-
             await _dbContext.SaveChangesAsync();
 
             _cacheManager.Remove(CacheKeys.Forum(reply.Topic.ForumId));

test/Atles.Domain.Commands.Handlers.Tests/Posts/SetReplyAsAnswerHandlerTests.cs

@@ -63,10 +63,76 @@ public async Task Should_set_reply_as_answer_and_add_event()
 
                 var replyUpdated = await dbContext.Posts.Include(x => x.Topic).FirstOrDefaultAsync(x => x.Id == reply.Id);
                 var replyEvent = await dbContext.Events.FirstOrDefaultAsync(x => x.TargetId == reply.Id);
+                var userUpdated = await dbContext.Users.FirstOrDefaultAsync(x => x.Id == user.Id);
 
-                Assert.AreEqual(true, replyUpdated.IsAnswer);
-                Assert.AreEqual(true, replyUpdated.Topic.HasAnswer);
+                Assert.True(replyUpdated.IsAnswer);
+                Assert.True(replyUpdated.Topic.HasAnswer);
                 Assert.NotNull(replyEvent);
+                Assert.AreEqual(1, userUpdated.AnswersCount);
+            }
+        }
+
+        [Test]
+        public async Task Should_set_topic_as_not_answered_and_add_event()
+        {
+            var options = Shared.CreateContextOptions();
+
+            var siteId = Guid.NewGuid();
+            var categoryId = Guid.NewGuid();
+            var forumId = Guid.NewGuid();
+            var topicId = Guid.NewGuid();
+            var userId = Guid.NewGuid();
+
+            var category = new Category(categoryId, siteId, "Category", 1, Guid.NewGuid());
+            var forum = new Forum(forumId, categoryId, "Forum", "my-forum", "My Forum", 1);
+            var topic = Post.CreateTopic(topicId, forumId, Guid.NewGuid(), "Title", "slug", "Content", PostStatusType.Published);
+            var reply = Post.CreateReply(Guid.NewGuid(), topicId, forumId, userId, "Content", PostStatusType.Published);
+            var user = new User(userId, Guid.NewGuid().ToString(), "Email", "Display Name");
+
+            category.IncreaseRepliesCount();
+            forum.IncreaseRepliesCount();
+            topic.IncreaseRepliesCount();
+            user.IncreaseRepliesCount();
+
+            reply.SetAsAnswer(true);
+            topic.SetAsAnswered(true);
+            user.IncreaseAnswersCount();
+
+            using (var dbContext = new AtlesDbContext(options))
+            {
+                dbContext.Categories.Add(category);
+                dbContext.Forums.Add(forum);
+                dbContext.Posts.Add(topic);
+                dbContext.Posts.Add(reply);
+                dbContext.Users.Add(user);
+                await dbContext.SaveChangesAsync();
+            }
+
+            using (var dbContext = new AtlesDbContext(options))
+            {
+                var command = new SetReplyAsAnswer
+                {
+                    ReplyId = reply.Id,
+                    SiteId = siteId,
+                    ForumId = forumId,
+                    TopicId = topicId,
+                    IsAnswer = false
+                };
+
+                var cacheManager = new Mock<ICacheManager>();
+
+                var sut = new SetReplyAsAnswerHandler(dbContext, cacheManager.Object);
+
+                await sut.Handle(command);
+
+                var replyUpdated = await dbContext.Posts.Include(x => x.Topic).FirstOrDefaultAsync(x => x.Id == reply.Id);
+                var replyEvent = await dbContext.Events.FirstOrDefaultAsync(x => x.TargetId == reply.Id);
+                var userUpdated = await dbContext.Users.FirstOrDefaultAsync(x => x.Id == user.Id);
+
+                Assert.False(replyUpdated.IsAnswer);
+                Assert.False(replyUpdated.Topic.HasAnswer);
+                Assert.NotNull(replyEvent);
+                Assert.AreEqual(0, userUpdated.AnswersCount);
             }
         }
     }