feat: 添加内容热重载指令 (#4)

Reviewed-on: #4

YaeBlog.Core/Processors/HeadlinePostRenderProcessor.cs

@@ -1,14 +1,15 @@
 using AngleSharp;
 using AngleSharp.Dom;
+using Microsoft.Extensions.Logging;
 using YaeBlog.Core.Abstractions;
 using YaeBlog.Core.Models;
-using YaeBlog.Core.Services;
 
 namespace YaeBlog.Core.Processors;
 
 public class HeadlinePostRenderProcessor(
     IConfiguration angleConfiguration,
-    TableOfContentService tableOfContentService) : IPostRenderProcessor
+    IEssayContentService essayContentService,
+    ILogger<HeadlinePostRenderProcessor> logger) : IPostRenderProcessor
 {
     public async Task<BlogEssay> ProcessAsync(BlogEssay essay)
     {
@@ -62,7 +63,10 @@ public class HeadlinePostRenderProcessor(
         FindParentHeadline(topHeadline, level2List).Children.AddRange(level3List);
         topHeadline.Children.AddRange(level2List);
 
-        tableOfContentService.AddHeadline(essay.FileName, topHeadline);
+        if (!essayContentService.TryAddHeadline(essay.FileName, topHeadline))
+        {
+            logger.LogWarning("Failed to add headline of {}.", essay.FileName);
+        }
 
         return essay.WithNewHtmlContent(document.DocumentElement.OuterHtml);
     }

YaeBlog.Core/Processors/ImagePostRenderProcessor.cs

@@ -3,6 +3,7 @@ using AngleSharp.Dom;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 using YaeBlog.Core.Abstractions;
+using YaeBlog.Core.Exceptions;
 using YaeBlog.Core.Models;
 
 namespace YaeBlog.Core.Processors;
@@ -47,12 +48,12 @@ public class ImagePostRenderProcessor(ILogger<ImagePostRenderProcessor> logger,
             filename = Path.Combine(essayFilename, filename);
         }
 
-        filename = Path.Combine(_options.Root, filename);
+        filename = Path.Combine(_options.Root, "posts", filename);
 
         if (!Path.Exists(filename))
         {
             logger.LogError("Failed to found image: {}.", filename);
-            throw new InvalidOperationException();
+            throw new BlogFileException($"Image {filename} doesn't exist.");
         }
 
         string imageLink = "api/files/" + filename;