[FA-misc] Add delete button

FictionArchive.Service.NovelService/Services/NovelUpdateService.cs

@@ -379,12 +379,23 @@ public class NovelUpdateService
         var chapter = novel.Chapters.Where(chapter => chapter.Order == chapterNumber).FirstOrDefault();
         var adapter = _sourceAdapters.FirstOrDefault(adapter => adapter.SourceDescriptor.Key == novel.Source.Key);
         var rawChapter = await adapter.GetRawChapter(chapter.Url);
-        var localizationText = new LocalizationText()
+        
+        // If we already have the raw for this, overwrite it for now. Revisions will come later.
+        var localizationText = chapter.Body.Texts.FirstOrDefault(text => text.Language == novel.RawLanguage);
+        if (localizationText == null)
         {
-            Text = rawChapter.Text,
-            Language = novel.RawLanguage
-        };
-        chapter.Body.Texts.Add(localizationText);
+            localizationText = new LocalizationText()
+            {
+                Text = rawChapter.Text,
+                Language = novel.RawLanguage
+            };
+            chapter.Body.Texts.Add(localizationText);
+        }
+        else
+        {
+            localizationText.Text = rawChapter.Text;
+        }
+        
         chapter.Images = rawChapter.ImageData.Select(img => new Image()
         {
             OriginalPath = img.Url
@@ -477,4 +488,49 @@ public class NovelUpdateService
         await _eventBus.Publish(chapterPullEvent);
         return chapterPullEvent;
     }
+
+    public async Task DeleteNovel(uint novelId)
+    {
+        var novel = await _dbContext.Novels
+            .Include(n => n.CoverImage)
+            .Include(n => n.Name).ThenInclude(k => k.Texts)
+            .Include(n => n.Description).ThenInclude(k => k.Texts)
+            .Include(n => n.Chapters).ThenInclude(c => c.Images)
+            .Include(n => n.Chapters).ThenInclude(c => c.Name).ThenInclude(k => k.Texts)
+            .Include(n => n.Chapters).ThenInclude(c => c.Body).ThenInclude(k => k.Texts)
+            .FirstOrDefaultAsync(n => n.Id == novelId);
+
+        if (novel == null)
+            throw new KeyNotFoundException($"Novel with ID '{novelId}' not found");
+
+        // Collect all LocalizationKey IDs for cleanup
+        var locKeyIds = new List<Guid> { novel.Name.Id, novel.Description.Id };
+        locKeyIds.AddRange(novel.Chapters.Select(c => c.Name.Id));
+        locKeyIds.AddRange(novel.Chapters.Select(c => c.Body.Id));
+
+        // 1. Remove LocalizationRequests referencing these keys
+        var locRequests = await _dbContext.LocalizationRequests
+            .Where(r => locKeyIds.Contains(r.KeyRequestedForTranslation.Id))
+            .ToListAsync();
+        _dbContext.LocalizationRequests.RemoveRange(locRequests);
+
+        // 2. Remove LocalizationTexts (NO ACTION FK - won't cascade)
+        _dbContext.RemoveRange(novel.Name.Texts);
+        _dbContext.RemoveRange(novel.Description.Texts);
+        foreach (var chapter in novel.Chapters)
+        {
+            _dbContext.RemoveRange(chapter.Name.Texts);
+            _dbContext.RemoveRange(chapter.Body.Texts);
+        }
+
+        // 3. Remove Images (NO ACTION FK - won't cascade)
+        if (novel.CoverImage != null)
+            _dbContext.Images.Remove(novel.CoverImage);
+        foreach (var chapter in novel.Chapters)
+            _dbContext.Images.RemoveRange(chapter.Images);
+
+        // 4. Remove novel - cascades: chapters, localization keys, tag mappings
+        _dbContext.Novels.Remove(novel);
+        await _dbContext.SaveChangesAsync();
+    }
 }