Move Pandoc validation to the start of file selection.

app/MindWork AI Studio/Components/ReadFileContent.razor.cs

@@ -30,6 +30,18 @@ public partial class ReadFileContent : MSGComponentBase
     
     private async Task SelectFile()
     {
+        // Ensure that Pandoc is installed and ready:
+        var pandocState = await this.PandocAvailabilityService.EnsureAvailabilityAsync(
+            showSuccessMessage: false,
+            showDialog: true);
+
+        // Check if Pandoc is available after the check / installation:
+        if (!pandocState.IsAvailable)
+        {
+            this.Logger.LogWarning("The user cancelled the Pandoc installation or Pandoc is not available. Aborting file selection.");
+            return;
+        }
+
         var selectedFile = await this.RustService.SelectFile(T("Select file to read its content"));
         if (selectedFile.UserCancelled)
         {
@@ -64,11 +76,6 @@ public partial class ReadFileContent : MSGComponentBase
             await MessageBus.INSTANCE.SendWarning(new(Icons.Material.Filled.FeaturedVideo, this.T("Videos are not supported yet")));
             return;
         }
-
-        // Ensure that Pandoc is installed and ready:
-        await this.PandocAvailabilityService.EnsureAvailabilityAsync(
-            showSuccessMessage: false,
-            showDialog: true);
         
         try
         {

app/MindWork AI Studio/wwwroot/changelog/v0.9.55.md

@@ -8,6 +8,7 @@
 - Improved the ID handling for configuration plugins.
 - Improved error handling, logging, and code quality.
 - Improved error handling for Microsoft Word export.
+- Improved file reading, e.g. for the translation, summarization, and legal assistants, by performing the Pandoc validation in the first step. This prevents unnecessary selection of files that cannot be processed.
 - Fixed a bug in the local data sources info dialog (preview feature) for data directories that could cause the app to crash. The error was caused by a background thread producing data while the frontend attempted to display it.
 - Fixed a visual bug where a function's preview status was misaligned. You might have seen it in document analysis or the ERI server assistant.
 - Fixed a rare bug in the Microsoft Word export for huge documents.