add: 预计阅读时间

YaeBlog.Core/Models/BlogEssay.cs

@@ -12,6 +12,8 @@ public class BlogEssay : IComparable<BlogEssay>
 
     public required uint WordCount { get; init; }
 
+    public required string ReadTime { get; init; }
+
     public List<string> Tags { get; } = [];
 
     public required string HtmlContent { get; init; }
@@ -25,6 +27,7 @@ public class BlogEssay : IComparable<BlogEssay>
             PublishTime = PublishTime,
             Description = Description,
             WordCount = WordCount,
+            ReadTime = ReadTime,
             HtmlContent = newHtmlContent
         };
         essay.Tags.AddRange(Tags);

YaeBlog.Core/Services/RendererService.cs

@@ -12,7 +12,8 @@ using YamlDotNet.Serialization;
 
 namespace YaeBlog.Core.Services;
 
-public partial class RendererService(ILogger<RendererService> logger,
+public partial class RendererService(
+    ILogger<RendererService> logger,
     EssayScanService essayScanService,
     MarkdownPipeline markdownPipeline,
     IDeserializer yamlDeserializer,
@@ -38,12 +39,14 @@ public partial class RendererService(ILogger<RendererService> logger,
             foreach (BlogContent content in preProcessedContents)
             {
                 MarkdownMetadata? metadata = TryParseMetadata(content);
+                uint wordCount = GetWordCount(content);
                 BlogEssay essay = new()
                 {
                     Title = metadata?.Title ?? content.FileName,
                     FileName = content.FileName,
                     Description = GetDescription(content),
-                    WordCount = GetWordCount(content),
+                    WordCount = wordCount,
+                    ReadTime = CalculateReadTime(wordCount),
                     PublishTime = metadata?.Date ?? DateTime.Now,
                     HtmlContent = content.FileContent
                 };
@@ -52,6 +55,7 @@ public partial class RendererService(ILogger<RendererService> logger,
                 {
                     essay.Tags.AddRange(metadata.Tags);
                 }
+
                 essays.Add(essay);
             }
         });
@@ -229,4 +233,13 @@ public partial class RendererService(ILogger<RendererService> logger,
             count);
         return count;
     }
+
+    private static string CalculateReadTime(uint wordCount)
+    {
+        // 据说语文教学大纲规定，中国高中问阅读现代文的速度是600字每分钟
+        int second = (int)wordCount / 10;
+        TimeSpan span = new TimeSpan(0, 0, second);
+
+        return span.ToString("mm'分 'ss'秒'");
+    }
 }

YaeBlog/Pages/Essays.razor

@@ -32,7 +32,7 @@
 
     <div class="row px-4 py-1">
         <div class="col-auto fw-light">
-            总字数：@(_essay!.WordCount)字。
+            总字数：@(_essay!.WordCount)字，预计阅读时间 @(_essay!.ReadTime)。
         </div>
     </div>