From 15d2fdb25e8f2966cf1f9d9161adce64c08c049a Mon Sep 17 00:00:00 2001
From: Demis Bellot <demis.bellot@gmail.com>
Date: Mon, 25 Mar 2024 10:15:28 +0800
Subject: [PATCH] update localFiles if modified or new files added to R2

---
 MyApp.ServiceInterface/Data/QuestionsProvider.cs |  5 +++++
 MyApp/Components/Pages/Questions/Question.razor  |  1 +
 MyApp/Configure.Renderer.cs                      | 15 +++++++++++++++
 3 files changed, 21 insertions(+)

diff --git a/MyApp.ServiceInterface/Data/QuestionsProvider.cs b/MyApp.ServiceInterface/Data/QuestionsProvider.cs
index bb15102..95b4a54 100644
--- a/MyApp.ServiceInterface/Data/QuestionsProvider.cs
+++ b/MyApp.ServiceInterface/Data/QuestionsProvider.cs
@@ -134,4 +134,9 @@ public async Task SaveAnswerAsync(int postId, string model, string json)
     {
         await SaveFileAsync(GetModelAnswerPath(postId, model), json);
     }
+
+    public async Task SaveLocalFileAsync(string virtualPath, string contents)
+    {
+        await fs.WriteFileAsync(virtualPath, contents);
+    }
 }
diff --git a/MyApp/Components/Pages/Questions/Question.razor b/MyApp/Components/Pages/Questions/Question.razor
index bc1a71b..7a8e4c1 100644
--- a/MyApp/Components/Pages/Questions/Question.razor
+++ b/MyApp/Components/Pages/Questions/Question.razor
@@ -128,6 +128,7 @@
             else
             {
                 MessageProducer.Publish(new RenderComponent {
+                    IfQuestionModified = Id,
                     Question = question,
                 });
             }
diff --git a/MyApp/Configure.Renderer.cs b/MyApp/Configure.Renderer.cs
index 048f30e..fc17674 100644
--- a/MyApp/Configure.Renderer.cs
+++ b/MyApp/Configure.Renderer.cs
@@ -127,6 +127,7 @@ public async Task SetHomeTabHtmlAsync(string? tab, string html)
 }
 
 public class RenderServices(
+    ILogger<RenderServices> log,
     QuestionsProvider questions,
     BlazorRenderer renderer,
     RendererCache cache,
@@ -153,8 +154,21 @@ public async Task Any(RenderComponent request)
                                  await ShouldRegenerateMeta(id, localFiles, remoteFiles, dbStatTotals, allPostVotes);
             if (regenerateMeta)
             {
+                log.LogInformation("Regenerating Meta for Post {Id}...", id);
                 await RegenerateMeta(dbAnalytics, id, remoteFiles, dbStatTotals, allPostVotes);
             }
+
+            // Update Local Files with new or modified remote files
+            foreach (var remoteFile in remoteFiles.Files)
+            {
+                var localFile = localFiles.Files.FirstOrDefault(x => x.Name == remoteFile.Name);
+                if (localFile == null || localFile.LastModified < remoteFile.LastModified)
+                {
+                    log.LogInformation("Saving local file for {State} {Path}", localFile == null ? "new" : "modified", remoteFile.VirtualPath);
+                    var remoteContents = await remoteFile.ReadAllTextAsync();
+                    await questions.SaveLocalFileAsync(remoteFile.VirtualPath, remoteContents);
+                }
+            }
             
             var rerenderPostHtml = regenerateMeta;
             var htmlPostPath = cache.GetCachedQuestionPostPath(id);
@@ -173,6 +187,7 @@ public async Task Any(RenderComponent request)
 
         if (request.Question != null)
         {
+            log.LogInformation("Rendering Question Post HTML {Id}...", request.Question.Id);
             var html = await renderer.RenderComponent<QuestionPost>(new() { ["Question"] = request.Question });
             await cache.SetQuestionPostHtmlAsync(request.Question.Id, html);
         }