Add DeleteQuestion API

MyApp.ServiceInterface/BackgroundMqServices.cs

@@ -58,6 +58,13 @@ public async Task Any(DbWrites request)
         {
             await Db.InsertAsync(request.CreatePost);
         }
+
+        if (request.DeletePost != null)
+        {
+            await Db.DeleteAsync<PostJob>(x => x.PostId == request.DeletePost);
+            await Db.DeleteAsync<Vote>(x => x.PostId == request.DeletePost);
+            await Db.DeleteByIdAsync<Post>(request.DeletePost);
+        }
 
         if (request.CreatePostJobs is { Count: > 0 })
         {
@@ -125,16 +132,24 @@ public async Task Any(DbWrites request)
 
     public async Task Any(AnalyticsTasks request)
     {
+        if (request.RecordPostView == null && request.RecordSearchView == null && request.DeletePost == null)
+            return;
+
+        using var analyticsDb = HostContext.AppHost.GetDbConnection(Databases.Analytics);
+
         if (request.RecordPostView != null)// && !Stats.IsAdminOrModerator(request.RecordPostView.UserName))
         {
-            using var analyticsDb = HostContext.AppHost.GetDbConnection(Databases.Analytics);
             await analyticsDb.InsertAsync(request.RecordPostView);
         }
 
         if (request.RecordSearchView != null)// && !Stats.IsAdminOrModerator(request.RecordSearchView.UserName))
         {
-            using var analyticsDb = HostContext.AppHost.GetDbConnection(Databases.Analytics);
             await analyticsDb.InsertAsync(request.RecordSearchView);
         }
+
+        if (request.DeletePost != null)
+        {
+            await analyticsDb.DeleteAsync<PostView>(x => x.PostId == request.DeletePost);
+        }
     }
 }

MyApp.ServiceInterface/Data/QuestionsProvider.cs

@@ -164,4 +164,12 @@ public async Task SaveRemoteFileAsync(string virtualPath, string contents)
     {
         await r2.WriteFileAsync(virtualPath, contents);
     }
+
+    public async Task DeleteQuestionFilesAsync(int id)
+    {
+        var localQuestionFiles = GetLocalQuestionFiles(id);
+        fs.DeleteFiles(localQuestionFiles.Files.Select(x => x.VirtualPath));
+        var remoteQuestionFiles = await GetRemoteQuestionFilesAsync(id);
+        r2.DeleteFiles(remoteQuestionFiles.Files.Select(x => x.VirtualPath));
+    }
 }

MyApp.ServiceInterface/QuestionServices.cs

@@ -1,6 +1,7 @@
 using MyApp.Data;
 using ServiceStack;
 using MyApp.ServiceModel;
+using ServiceStack.OrmLite;
 
 namespace MyApp.ServiceInterface;
 
@@ -57,6 +58,17 @@ public async Task<object> Any(AskQuestion request)
         };
     }
 
+    public async Task<EmptyResponse> Any(DeleteQuestion request)
+    {
+        await questions.DeleteQuestionFilesAsync(request.Id);
+        rendererCache.DeleteCachedQuestionPostHtml(request.Id);
+        MessageProducer.Publish(new DbWrites
+        {
+            DeletePost = request.Id,
+        });
+        return new EmptyResponse();
+    }
+
     public async Task<object> Any(AnswerQuestion request)
     {
         var userName = GetUserName();
@@ -74,6 +86,11 @@ public async Task<object> Any(AnswerQuestion request)
 
         await questions.SaveHumanAnswerAsync(post);
         rendererCache.DeleteCachedQuestionPostHtml(post.Id);
+
+        // Rewind last Id if it was latest question
+        var maxPostId = Db.Scalar<int>("SELECT MAX(Id) FROM Post");
+        AppConfig.Instance.SetInitialPostId(Math.Max(100_000_000, maxPostId));
+
         return new AnswerQuestionResponse();
     }
 

MyApp.ServiceModel/Posts.cs

@@ -294,3 +294,10 @@ public class PreviewMarkdown : IPost, IReturn<string>
 {
     public string Markdown { get; set; }
 }
+
+[ValidateHasRole(Roles.Moderator)]
+public class DeleteQuestion : IGet, IReturn<EmptyResponse>
+{
+    [ValidateGreaterThan(0)]
+    public int Id { get; set; }
+}

MyApp.ServiceModel/Stats.cs

@@ -101,6 +101,7 @@ public class AnalyticsTasks
 {
     public SearchView? RecordSearchView { get; set; }
     public PostView? RecordPostView { get; set; }
+    public int? DeletePost { get; set; }
 }
 
 public class StartJob
@@ -114,7 +115,7 @@ public class DbWrites
 {
     public Vote? RecordPostVote { get; set; }
     public Post? CreatePost { get; set; }
-    public Post? UpdatePost { get; set; }
+    public int? DeletePost { get; set; }
     public List<PostJob>? CreatePostJobs { get; set; }
     public StartJob? StartJob { get; set; }
     public int? AnswerAddedToPost { get; set; }