Generalize, move interface up.

Author: pawchen

converter/generator/DocBookTransformer.cs

@@ -69,6 +69,8 @@ public DocBookTransformer(DocToStaticPagesTransformerArgs args, ProblemRecorder
 
     protected override async Task TransformAsync(string language)
     {
+        await base.TransformAsync(language);
+
         var srcDir = Path.Combine(SourceFolder, language, BookDirName);
         var srcEnDir = Path.Combine(SourceFolderEn, BookDirName);
         string? fallbackBanner = null;

converter/generator/DocIndexTransformer.cs

@@ -10,6 +10,8 @@ public DocIndexTransformer(DocToStaticPagesTransformerArgs args, ProblemRecorder
 
     protected override async Task TransformAsync(string language)
     {
+        await base.TransformAsync(language);
+
         foreach (var sourceFile in Directory.EnumerateFiles(SourceFolder, "index.html", SearchOption.AllDirectories))
         {
             var relativePath = Path.GetRelativePath(SourceFolder, sourceFile);

converter/generator/DocToStaticPagesTransformer.cs

@@ -7,7 +7,7 @@
 
 namespace OriginLab.DocumentGeneration;
 
-internal abstract partial class DocToStaticPagesTransformer : DocTransformer, IDocTransformer
+internal abstract partial class DocToStaticPagesTransformer : DocTransformer
 {
     public const int MaxSiblingNodes = 10 * 2;
 
@@ -28,19 +28,19 @@ protected DocToStaticPagesTransformer(DocToStaticPagesTransformerArgs args, Prob
         UseWebp = args.UseWebp;
     }
 
-    public async Task TransformAsync()
+    public override async Task TransformAsync()
     {
-        foreach (var language in AvailableLanguages)
-        {
-            var html = await InitializeLanguageLayoutAsync(language);
+        await base.TransformAsync();
 
-            var langDir = Directory.CreateDirectory(Path.Combine(OutputFolder, language));
-            await File.WriteAllTextAsync(Path.Combine(langDir.FullName, "layout.html"), html);
+        File.WriteAllText(Path.Combine(OutputFolder, "404.html"), await Template.Render404PageAsync());
+    }
 
-            await TransformAsync(language);
-        }
+    protected override async Task TransformAsync(string language)
+    {
+        var html = await InitializeLanguageLayoutAsync(language);
 
-        File.WriteAllText(Path.Combine(OutputFolder, "404.html"), await Template.Render404PageAsync());
+        var langDir = Directory.CreateDirectory(Path.Combine(OutputFolder, language));
+        await File.WriteAllTextAsync(Path.Combine(langDir.FullName, "layout.html"), html);
     }
 
     internal async Task<string> InitializeLanguageLayoutAsync(string language)

converter/generator/DocTransformer.cs

@@ -12,7 +12,7 @@
 
 namespace OriginLab.DocumentGeneration;
 
-internal abstract partial class DocTransformer
+internal abstract partial class DocTransformer : IDocTransformer
 {
     protected string SourceFolder { get; }
     protected string SourceFolderEn { get; }
@@ -112,6 +112,14 @@ private static Dictionary<string, string> GetSharedImages()
         return images;
     }
 
+    public virtual async Task TransformAsync()
+    {
+        foreach (var language in AvailableLanguages)
+        {
+            await TransformAsync(language);
+        }
+    }
+
     protected abstract Task TransformAsync(string language);
 
     protected void Transform(string sourceFile, string destinationFile, Action<IHtmlDocument, IHtmlHeadElement, IHtmlBodyElement, string>? beforeTransform = null)