refact: add YaeBlog.Abstractions project.

Signed-off-by: jackfiled <xcrenchangjun@outlook.com>

.gitea/workflows/build.yaml

@@ -8,19 +8,19 @@ jobs:
     runs-on: archlinux
     steps:
       - name: Check out code.
-        uses: https://mirrors.rrricardo.top/actions/checkout.git@v4
+        uses: http://github-mirrors.infra.svc.cluster.local/actions/checkout.git@v4
         with:
           lfs: true
       - name: Build project.
         run: |
+          git submodule update --init
           podman pull mcr.azure.cn/dotnet/aspnet:10.0
-          cd YaeBlog
           pwsh build.ps1 build
       - name: Workaround to make sure podman-login working.
         run: |
-          mkdir /root/.docker
+          mkdir -p /root/.docker
       - name: Login tencent cloud docker registry.
-        uses: https://mirrors.rrricardo.top/actions/podman-login.git@v1
+        uses: http://github-mirrors.infra.svc.cluster.local/actions/podman-login.git@v1
         with:
           registry: ccr.ccs.tencentyun.com
           username: 100044380877

.gitignore

@@ -184,6 +184,7 @@ DocProject/Help/html
 
 # Click-Once directory
 publish/
+out/
 
 # Publish Web Output
 *.[Pp]ublish.xml

YaeBlog.slnx

@@ -12,6 +12,7 @@
     <File Path="README.md" />
   </Folder>
   <Folder Name="/src/">
+    <Project Path="src/YaeBlog.Abstractions/YaeBlog.Abstractions.csproj" />
     <Project Path="src/YaeBlog.Tests/YaeBlog.Tests.csproj" />
     <Project Path="src/YaeBlog/YaeBlog.csproj" />
   </Folder>

build.ps1

@@ -3,16 +3,15 @@
 [cmdletbinding()]
 param(
     [Parameter(Mandatory = $true, Position = 0, HelpMessage = "Specify the build target")]
-    [ValidateSet("tailwind", "publish", "compress", "build", "dev", "new", "watch", "serve", "list")]
+    [ValidateSet("publish", "compress", "build", "dev", "new", "watch", "serve")]
     [string]$Target,
-    [string]$Output = "wwwroot",
     [string]$Essay,
     [switch]$Compress,
     [string]$Root = "source"
 )
 
 begin {
-    if ($Target -eq "tailwind")
+    if (($Target -eq "tailwind") -or ($Target -eq "build"))
     {
         # Handle tailwind specially.
         return
@@ -82,8 +81,11 @@ process {
     function Build-Image
     {
         $commitId = git rev-parse --short=10 HEAD
-        dotnet publish
-        podman build . -t ccr.ccs.tencentyun.com/jackfiled/blog --build-arg COMMIT_ID=$commitId
+        dotnet publish ./src/YaeBlog/YaeBlog.csproj -o out
+        Write-Host "Succeed to build blog appliocation."
+        podman build . -t ccr.ccs.tencentyun.com/jackfiled/blog --build-arg COMMIT_ID=$commitId `
+            -f ./src/YaeBlog/Dockerfile
+        Write-Host "Succeed to build ccr.ccs.tencentyun.com/jackfiled/blog image."
     }
 
     function Start-Develop {
@@ -111,11 +113,6 @@ process {
 
     switch ($Target)
     {
-        "tailwind" {
-            Write-Host "Build tailwind css into $Output."
-            pnpm tailwindcss -i wwwroot/tailwind.css -o $Output/tailwind.g.css
-            break
-        }
         "publish" {
             Write-Host "Publish essay $Essay..."
             dotnet run -- publish $Essay

source/posts/system-text-json.md

@@ -0,0 +1,344 @@
+---
+title: 使用System.Text.Json序列化和反序列化JSON
+date: 2026-01-21T22:07:38.4297603+08:00
+updateTime: 2026-01-21T22:07:38.4370636+08:00
+tags:
+- 技术笔记
+- dotnet
+---
+
+
+
+如何使用`System.Text.Json`高效地序列化和反序列化JSON？
+
+<!--more-->
+
+### 序列化
+
+序列化JSON几乎总是简单的，直接使用`JsonSerializer.Serialize`就可以序列化为字符串。
+
+唯一需要注意的是，JSON理论上唯一的数字类型`number`默认是双精度浮点数，只能**精确地**表示53位（二进制）以下的整数。在对于`long`类型进行序列化时，虽然框架可以输出正确的数值，但是JavaScript中无法正确的解析。
+
+```csharp
+    [Fact]
+    public void LongSerializeTest()
+    {
+        JsonBody body = new(long.MaxValue - 1);
+        string output = JsonSerializer.Serialize(body);
+        // Output: {"Number":9223372036854775806}
+        outputHelper.WriteLine(output);
+    }
+```
+
+上述的JSON字符串中在JavaScript中将会被解析为：
+
+![image-20260120153508775](./system-text-json/image-20260120153508775.webp)
+
+因此在需要传递大整数的时候最好使用`String`。
+
+### 反序列化
+
+而反序列化中需要考虑的东西就很多了。
+
+#### 使用记录声明反序列化的对象
+
+在`System.Text.Json`的早期版本中，无法将JSON反序列化为`record`这类关键词声明的不可变类型，因为当时库的逻辑是首先调用类型的公共无参数构造函数构造对象，再使用setter为需要反序列化的属性赋值。在后来的版本中，序列化程序可以直接调用类型的构造函数进行反序列化，这就为反序列化到`record`和`struct`提供了方便。
+
+例如可以使用如下的代码快速地进行反序列化：
+
+```csharp
+    private record JsonBody(int Code, string Username);
+
+	[Fact]
+    public void DeserializeTest()
+    {
+        const string input = """
+                             {
+                                "code": 111,
+                                "username": "ricardo"
+                             }
+                             """;
+
+        JsonBody? body = JsonSerializer.Deserialize<JsonBody>(input, s_serializerOptions);
+        Assert.NotNull(body);
+
+        Assert.Equal(111, body.Code);
+        Assert.Equal("ricardo", body.Username);
+    }
+```
+
+但是这样进行反序列化有一个小小的坑，就是缺少对于空值的有效处理。例如对于下面的JSON，上面的代码都会正常地进行反序列化。
+
+```csharp
+    [Fact]
+    public void DeserializeFromNonexistFieldTest()
+    {
+        const string input = """
+                             {
+                                "code": 111
+                             }
+                             """;
+
+        JsonBody? body = JsonSerializer.Deserialize<JsonBody>(input, s_serializerOptions);
+        Assert.NotNull(body);
+
+        Assert.Equal(111, body.Code);
+        Assert.Equal("", body.Username);
+    }
+```
+
+```csharp
+    [Fact]
+    public void DeserializeFromNullValueTest()
+    {
+        const string input = """
+                             {
+                                "code": 111,
+                                "username": null
+                             }
+                             """;
+
+        JsonBody? body = JsonSerializer.Deserialize<JsonBody>(input, s_serializerOptions);
+        Assert.NotNull(body);
+
+        Assert.Equal(111, body.Code);
+        Assert.Equal("", body.Username);
+    }
+```
+
+但是对于返回结果的校验会发现`body.Username`实际上是一个空值。
+
+![image-20260121221219618](./system-text-json/image-20260121221219618.webp)
+
+幸好，在.NET 9中为`JsonSerializerOptions`添加了一个尊重可为空注释的选项`RespectNullableAnnotations`，将这个选项设置为`true`可以在**一定程度上**缓解这个问题。打开这个开关之后，对于`"username": null`的反序列化就会抛出异常了。
+
+但是针对第一段JSON，也就是缺少了`username`字段的反序列化并不会报错，这就是反序列化的第二个坑，这里先按下不表。
+
+因为在.NET运行时的设计初期并没有考虑空安全这一至关重要的特性，因此在IL中并没有针对引用类型的不可为空性的显式抽象（虽然后续的C#编译器会为所有不可为空的应用类型添加属性元数据）。所以，针对如下元素的不可为空约束是无效的：
+
+1. 顶级类型；
+2. 集合的元素类型；
+3. 任何含有泛型的属性、字段和构造函数参数。
+
+例如，针对下面这个反序列化代码并不会报错，需要程序员自行处理其中的空值：
+
+```csharp
+    [Fact]
+    public void DeserializeListTest()
+    {
+        const string input = """
+                             {
+                                "names": [
+                                    "1",
+                                    null,
+                                    "2"
+                                ]
+                             }
+                             """;
+
+        JsonListBody? body = JsonSerializer.Deserialize<JsonListBody>(input, s_serializerOptions);
+        Assert.NotNull(body);
+
+        foreach ((int i, string value) in body.Names.Index())
+        {
+            outputHelper.WriteLine($"{i} is null? {value is null}");
+        }
+    }
+```
+
+运行的输出结果提示第二个元素为空：
+
+![image-20260120172747047](./system-text-json/image-20260120172747047.webp)
+
+#### 需要才是需要，不为空并不一定不为空
+
+在默认的反序列化行为中，如果反序列化对象的某一个属性并不在输入的JSON对象中，反序列化器并不为报错而是直接设置为null，这显然会给破环空安全的假定，即使打开了尊重空值注释也是这样。这在.NET文档中被称为**缺失值和空值**：
+
+- **显式空值null**将会在`RespectNullableAnnontations=true`的情况下引发异常；
+- **缺少的属性**不会引发任何异常，即使对应的属性被声明为不可为空。
+
+为了让序列化程序确保缺少属性时会报错，需要将这个属性声明为**需要的**。这一点可以通过C#的`required`关键词或者`[Required]`属性来实现。
+
+而且，这两种属性对于C#语言和序列化程序来说是正交的，即：
+
+1. 可以有一个可以为空的必需属性：
+
+   ```csharp
+   MyPoco poco = new() { Value = null }; // No compiler warnings.
+   
+   class MyPoco
+   {
+       public required string? Value { get; set; }
+   }
+   ```
+
+2. 可以有一个不可为空的可选属性：
+
+   ```csharp
+   class MyPoco
+   {
+       public string Value { get; set; } = "default";
+   }
+   ```
+
+但是对于`record`类型来说，前者在语义上是冗余的，语法上是错误的，后者则对于程序员带来了额外的心智负担，需要手动给每一个字段加上一个额外的注解。
+
+考虑到序列化程序也支持使用有参数的公共构造函数，上面这两个属性对于构造函数的参数来说也是成立的：
+
+```csharp
+record MyPoco(
+    string RequiredNonNullable,
+    string? RequiredNullable,
+    string OptionalNonNullable = "default",
+    string? OptionalNullable = "default"
+    );
+```
+
+不过在.NET 9之前，所有构造函数的参数都被序列化程序认为是可选的。在.NET 9之后，`JsonSerializerOptions`添加了一个尊重必须构造函数参数的选项（别忘了对于`record`这类不可变对象的反序列化是通过构造函数来实现的）`RespectRequiredConstructorParameters`。在打开这个选项之后，针对缺少属性的反序列化就会正常报错了。
+
+```csharp
+    private static readonly JsonSerializerOptions s_serializerOptions = new()
+    {
+        PropertyNameCaseInsensitive = true,
+        RespectNullableAnnotations = true,
+        RespectRequiredConstructorParameters = true
+    };
+
+	[Fact]
+    public void DeserializeFromNonexistFieldTest()
+    {
+        const string input = """
+                             {
+                                "code": 111
+                             }
+                             """;
+
+        Assert.Throws<JsonException>(() => JsonSerializer.Deserialize<JsonBody>(input, s_serializerOptions));
+    }
+```
+
+#### 反序列化为结构
+
+结构作为值类型，虽然在函数之间传递时需要被拷贝而带来了额外的性能开销，但是也因为这一点而可以被直接分配在栈上，给GC带来的压力较小。因此在部分需要极端性能优化的场景可以直接针对`struct`进行反序列化。
+
+`struct`的反序列化也是通过构造函数来实现的，序列化程序遵循如下的规则来选择构造函数：
+
+1. 对于类，如果唯一的构造函数是参数化构造函数，则选择这一构造函数；
+2. 对于结构或者具有多个构造函数的类，需要使用`[JsonConstructor]`手动指定需要使用的构造函数，否则**只会**使用公共无参构造函数（如果存在）。
+
+因此，如果需要针对不可变的结构进行反序列化，需要加上`[JsonConstructor]`注解。例如，针对下面的代码，如果不加上注解，反序列化又会静默地失败。
+
+```csharp
+	private struct JsonStruct
+    {
+        public int Id { get; }
+
+        public string Name { get; }
+
+        [JsonConstructor]
+        public JsonStruct(int id, string name)
+        {
+            Id = id;
+            Name = name;
+        }
+    }
+
+    [Fact]
+    public void DeserializeToStructTest()
+    {
+        const string input = """
+                             {
+                                "Id": 1,
+                                "Name": "ricardo"
+                             }
+                             """;
+
+        JsonStruct r = JsonSerializer.Deserialize<JsonStruct>(input, s_serializerOptions);
+        Assert.Equal(1, r.Id);
+    }
+```
+
+为了简化语法，不可变的结构可以使用`readonly record struct`语法来替代：
+
+```csharp
+    private readonly record struct JsonRecordStruct(int Id, string Name);
+
+    [Fact]
+    public void DeserializeToRecordStructTest()
+    {
+        const string input = """
+                             {
+                                "Id": 1,
+                                "Name": "ricardo"
+                             }
+                             """;
+
+        JsonRecordStruct r = JsonSerializer.Deserialize<JsonRecordStruct>(input, s_serializerOptions);
+        Assert.Equal(1, r.Id);
+        Assert.Equal("ricardo", r.Name);
+    }
+```
+
+不过这里有一个很奇怪的点，使用`readonly record struct`语法之后就不需要`[JsonConstructor]`了。
+
+可以实验一下是`readonly`还是`record`发挥了作用。
+
+在仅仅添加了`readonly`的情况下，反序列化不会成功：
+
+```csharp
+    private readonly struct JsonReadonlyStruct
+    {
+        public int Id { get; }
+
+        public string Name { get; }
+
+        public JsonReadonlyStruct(int id, string name)
+        {
+            Id = id;
+            Name = name;
+        }
+    }
+
+    [Fact]
+    public void DeserializeToReadonlyStructTest()
+    {
+        const string input = """
+                             {
+                                "Id": 1,
+                                "Name": "ricardo"
+                             }
+                             """;
+
+        JsonReadonlyStruct r = JsonSerializer.Deserialize<JsonReadonlyStruct>(input, s_serializerOptions);
+        Assert.Equal(0, r.Id);
+        Assert.Null(r.Name);
+    }
+```
+
+而在仅仅加上`record`的情况下，序列化程序就可以选择正确的构造函数了：
+
+```csharp
+    private record struct JsonRecordStruct(int Id, string Name);
+
+    [Fact]
+    public void DeserializeToRecordStructTest()
+    {
+        const string input = """
+                             {
+                                "Id": 1,
+                                "Name": "ricardo"
+                             }
+                             """;
+
+        JsonRecordStruct r = JsonSerializer.Deserialize<JsonRecordStruct>(input, s_serializerOptions);
+        Assert.Equal(1, r.Id);
+        Assert.Equal("ricardo", r.Name);
+    }
+```
+
+> 不过这样说来`readonly record struct`中的`readonly`似乎是冗余的？
+>
+> 原来，`record struct`声明的对象是可变的。详见文档中对于[不可变性](https://learn.microsoft.com/zh-cn/dotnet/csharp/language-reference/builtin-types/record#immutability)的描述。
+
+
+

src/YaeBlog.Abstractions/IEssayContentService.cs

@@ -1,7 +1,7 @@
 using System.Diagnostics.CodeAnalysis;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
-namespace YaeBlog.Abstraction;
+namespace YaeBlog.Abstractions;
 
 public interface IEssayContentService
 {

src/YaeBlog.Abstractions/IEssayScanService.cs

@@ -1,6 +1,6 @@
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
-namespace YaeBlog.Abstraction;
+namespace YaeBlog.Abstractions;
 
 public interface IEssayScanService
 {

src/YaeBlog.Abstractions/IPostRenderProcessor.cs

@@ -1,6 +1,6 @@
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
-namespace YaeBlog.Abstraction;
+namespace YaeBlog.Abstractions;
 
 public interface IPostRenderProcessor
 {

src/YaeBlog.Abstractions/IPreRenderProcessor.cs

@@ -1,6 +1,6 @@
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
-namespace YaeBlog.Abstraction;
+namespace YaeBlog.Abstractions;
 
 public interface IPreRenderProcessor
 {

src/YaeBlog.Abstractions/Models/BlogContent.cs

@@ -1,4 +1,4 @@
-namespace YaeBlog.Models;
+namespace YaeBlog.Abstractions.Models;
 
 /// <summary>
 /// 单个博客文件的所有数据和元数据

src/YaeBlog.Abstractions/Models/BlogContents.cs

@@ -1,7 +1,7 @@
 using System.Collections;
 using System.Collections.Concurrent;
 
-namespace YaeBlog.Models;
+namespace YaeBlog.Abstractions.Models;
 
 public record BlogContents(ConcurrentBag<BlogContent> Drafts, ConcurrentBag<BlogContent> Posts)
     : IEnumerable<BlogContent>

src/YaeBlog.Abstractions/Models/BlogEssay.cs

@@ -1,4 +1,4 @@
-namespace YaeBlog.Models;
+namespace YaeBlog.Abstractions.Models;
 
 public record BlogEssay(
     string Title,

src/YaeBlog.Abstractions/Models/BlogHeadline.cs

@@ -1,4 +1,4 @@
-namespace YaeBlog.Models;
+namespace YaeBlog.Abstractions.Models;
 
 public class BlogHeadline(string title, string selectorId)
 {

src/YaeBlog.Abstractions/Models/BlogImageInfo.cs

@@ -1,6 +1,6 @@
 using System.Text;
 
-namespace YaeBlog.Models;
+namespace YaeBlog.Abstractions.Models;
 
 public record BlogImageInfo(FileInfo File, long Width, long Height, string MineType, byte[] Content, bool IsUsed)
     : IComparable<BlogImageInfo>

src/YaeBlog.Abstractions/Models/BlogOptions.cs

@@ -1,6 +1,6 @@
 using System.ComponentModel.DataAnnotations;
 
-namespace YaeBlog.Models;
+namespace YaeBlog.Abstractions.Models;
 
 /// <summary>
 /// 友链模型类

src/YaeBlog.Abstractions/Models/EssayTag.cs

@@ -1,6 +1,6 @@
 using System.Text.Encodings.Web;
 
-namespace YaeBlog.Models;
+namespace YaeBlog.Abstractions.Models;
 
 public class EssayTag(string tagName) : IEquatable<EssayTag>
 {

src/YaeBlog.Abstractions/Models/GiteaOptions.cs

@@ -1,6 +1,6 @@
 using System.ComponentModel.DataAnnotations;
 
-namespace YaeBlog.Models;
+namespace YaeBlog.Abstractions.Models;
 
 public class GiteaOptions
 {

src/YaeBlog.Abstractions/Models/HeatMapItem.cs

@@ -1,4 +1,4 @@
-namespace YaeBlog.Models;
+namespace YaeBlog.Abstractions.Models;
 
 public record GitContributionItem(DateOnly Time, long ContributionCount);
 

src/YaeBlog.Abstractions/Models/MarkdownMetadata.cs

@@ -1,4 +1,4 @@
-namespace YaeBlog.Models;
+namespace YaeBlog.Abstractions.Models;
 
 public class MarkdownMetadata
 {

src/YaeBlog.Abstractions/YaeBlog.Abstractions.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net10.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+</Project>

src/YaeBlog.Tests/GiteaFetchServiceTests.cs

@@ -1,7 +1,7 @@
 using DotNext;
 using Microsoft.Extensions.Options;
 using Moq;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 using YaeBlog.Services;
 
 namespace YaeBlog.Tests;

src/YaeBlog.Tests/OptionsMock.cs

@@ -1,6 +1,6 @@
 using Microsoft.Extensions.Options;
 using Moq;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
 namespace YaeBlog.Tests;
 

src/YaeBlog/Commands/Binders/BlogOptionsBinder.cs

@@ -1,33 +0,0 @@
-using System.CommandLine.Binding;
-using System.Text.Json;
-using Microsoft.Extensions.Options;
-using YaeBlog.Models;
-
-namespace YaeBlog.Commands.Binders;
-
-public sealed class BlogOptionsBinder : BinderBase<IOptions<BlogOptions>>
-{
-    protected override IOptions<BlogOptions> GetBoundValue(BindingContext bindingContext)
-    {
-        bindingContext.AddService<IOptions<BlogOptions>>(_ =>
-        {
-            FileInfo settings = new(Path.Combine(Environment.CurrentDirectory, "appsettings.json"));
-            if (!settings.Exists)
-            {
-                throw new InvalidOperationException("Failed to load YaeBlog configurations.");
-            }
-
-            using StreamReader reader = settings.OpenText();
-            using JsonDocument document = JsonDocument.Parse(reader.ReadToEnd());
-            JsonElement root = document.RootElement;
-            JsonElement optionSection = root.GetProperty(BlogOptions.OptionName);
-
-            BlogOptions? result = optionSection.Deserialize<BlogOptions>();
-            return result is null
-                ? throw new InvalidOperationException("Failed to load YaeBlog configuration in appsettings.json.")
-                : new OptionsWrapper<BlogOptions>(result);
-        });
-
-        return bindingContext.GetRequiredService<IOptions<BlogOptions>>();
-    }
-}

src/YaeBlog/Commands/Binders/EssayScanServiceBinder.cs

@@ -1,32 +0,0 @@
-using System.CommandLine.Binding;
-using Microsoft.Extensions.Options;
-using YaeBlog.Abstraction;
-using YaeBlog.Models;
-using YaeBlog.Services;
-using YamlDotNet.Serialization;
-using YamlDotNet.Serialization.NamingConventions;
-
-namespace YaeBlog.Commands.Binders;
-
-public sealed class EssayScanServiceBinder : BinderBase<IEssayScanService>
-{
-    protected override IEssayScanService GetBoundValue(BindingContext bindingContext)
-    {
-        bindingContext.AddService<IEssayScanService>(provider =>
-        {
-            DeserializerBuilder deserializerBuilder = new();
-            deserializerBuilder.WithNamingConvention(CamelCaseNamingConvention.Instance);
-            deserializerBuilder.IgnoreUnmatchedProperties();
-
-            SerializerBuilder serializerBuilder = new();
-            serializerBuilder.WithNamingConvention(CamelCaseNamingConvention.Instance);
-
-            IOptions<BlogOptions> options = provider.GetRequiredService<IOptions<BlogOptions>>();
-            ILogger<EssayScanService> logger = provider.GetRequiredService<ILogger<EssayScanService>>();
-
-            return new EssayScanService(serializerBuilder.Build(), deserializerBuilder.Build(), options, logger);
-        });
-
-        return bindingContext.GetRequiredService<IEssayScanService>();
-    }
-}

src/YaeBlog/Commands/Binders/ImageCompressServiceBinder.cs

@@ -1,21 +0,0 @@
-using System.CommandLine.Binding;
-using YaeBlog.Abstraction;
-using YaeBlog.Services;
-
-namespace YaeBlog.Commands.Binders;
-
-public sealed class ImageCompressServiceBinder : BinderBase<ImageCompressService>
-{
-    protected override ImageCompressService GetBoundValue(BindingContext bindingContext)
-    {
-        bindingContext.AddService(provider =>
-        {
-            IEssayScanService essayScanService = provider.GetRequiredService<IEssayScanService>();
-            ILogger<ImageCompressService> logger = provider.GetRequiredService<ILogger<ImageCompressService>>();
-
-            return new ImageCompressService(essayScanService, logger);
-        });
-
-        return bindingContext.GetRequiredService<ImageCompressService>();
-    }
-}

src/YaeBlog/Commands/Binders/LoggerBinder.cs

@@ -1,18 +0,0 @@
-using System.CommandLine.Binding;
-
-namespace YaeBlog.Commands.Binders;
-
-public sealed class LoggerBinder<T> : BinderBase<ILogger<T>>
-{
-    protected override ILogger<T> GetBoundValue(BindingContext bindingContext)
-    {
-        bindingContext.AddService(_ => LoggerFactory.Create(builder => builder.AddConsole()));
-        bindingContext.AddService<ILogger<T>>(provider =>
-        {
-            ILoggerFactory factory = provider.GetRequiredService<ILoggerFactory>();
-            return factory.CreateLogger<T>();
-        });
-
-        return bindingContext.GetRequiredService<ILogger<T>>();
-    }
-}

src/YaeBlog/Commands/YaeBlogCommand.cs

@@ -1,296 +0,0 @@
-using System.CommandLine;
-using Microsoft.Extensions.Options;
-using YaeBlog.Abstraction;
-using YaeBlog.Commands.Binders;
-using YaeBlog.Components;
-using YaeBlog.Extensions;
-using YaeBlog.Models;
-using YaeBlog.Services;
-
-namespace YaeBlog.Commands;
-
-public sealed class YaeBlogCommand
-{
-    private readonly RootCommand _rootCommand = new("YaeBlog Cli");
-
-    public YaeBlogCommand()
-    {
-        AddServeCommand(_rootCommand);
-        AddWatchCommand(_rootCommand);
-        AddListCommand(_rootCommand);
-        AddNewCommand(_rootCommand);
-        AddUpdateCommand(_rootCommand);
-        AddPublishCommand(_rootCommand);
-        AddScanCommand(_rootCommand);
-        AddCompressCommand(_rootCommand);
-    }
-
-    public Task<int> RunAsync(string[] args)
-    {
-        return _rootCommand.InvokeAsync(args);
-    }
-
-    private static void AddServeCommand(RootCommand rootCommand)
-    {
-        Command serveCommand = new("serve", "Start http server.");
-        rootCommand.AddCommand(serveCommand);
-
-        serveCommand.SetHandler(async context =>
-        {
-            WebApplicationBuilder builder = WebApplication.CreateBuilder();
-
-            builder.Services.AddRazorComponents()
-                .AddInteractiveServerComponents();
-            builder.Services.AddControllers();
-            builder.AddYaeBlog();
-            builder.AddServer();
-
-            WebApplication application = builder.Build();
-
-            application.MapStaticAssets();
-            application.UseAntiforgery();
-            application.UseYaeBlog();
-
-            application.MapRazorComponents<App>()
-                .AddInteractiveServerRenderMode();
-            application.MapControllers();
-
-            CancellationToken token = context.GetCancellationToken();
-            await application.RunAsync(token);
-        });
-    }
-
-    private static void AddWatchCommand(RootCommand rootCommand)
-    {
-        Command command = new("watch", "Start a blog watcher that re-render when file changes.");
-        rootCommand.AddCommand(command);
-
-        command.SetHandler(async context =>
-        {
-            WebApplicationBuilder builder = WebApplication.CreateBuilder();
-
-            builder.Services.AddRazorComponents()
-                .AddInteractiveServerComponents();
-            builder.Services.AddControllers();
-            builder.AddYaeBlog();
-            builder.AddWatcher();
-
-            WebApplication application = builder.Build();
-
-            application.MapStaticAssets();
-            application.UseAntiforgery();
-            application.UseYaeBlog();
-
-            application.MapRazorComponents<App>()
-                .AddInteractiveServerRenderMode();
-            application.MapControllers();
-
-            CancellationToken token = context.GetCancellationToken();
-            await application.RunAsync(token);
-        });
-    }
-
-    private static void AddNewCommand(RootCommand rootCommand)
-    {
-        Command newCommand = new("new", "Create a new blog file and image directory.");
-        rootCommand.AddCommand(newCommand);
-
-        Argument<string> filenameArgument = new(name: "blog name", description: "The created blog filename.");
-        newCommand.AddArgument(filenameArgument);
-
-        newCommand.SetHandler(async (file, blogOption, _, essayScanService) =>
-            {
-                BlogContents contents = await essayScanService.ScanContents();
-
-                if (contents.Posts.Any(content => content.BlogName == file))
-                {
-                    Console.WriteLine("There exists the same title blog in posts.");
-                    return;
-                }
-
-                await essayScanService.SaveBlogContent(new BlogContent(
-                    new FileInfo(Path.Combine(blogOption.Value.Root, "drafts", file + ".md")),
-                    new MarkdownMetadata
-                    {
-                        Title = file,
-                        Date = DateTimeOffset.Now.ToString("o"),
-                        UpdateTime = DateTimeOffset.Now.ToString("o")
-                    },
-                    string.Empty, true, [], []));
-
-                Console.WriteLine($"Created new blog '{file}.");
-            }, filenameArgument, new BlogOptionsBinder(), new LoggerBinder<EssayScanService>(),
-            new EssayScanServiceBinder());
-    }
-
-    private static void AddUpdateCommand(RootCommand rootCommand)
-    {
-        Command newCommand = new("update", "Update the blog essay.");
-        rootCommand.AddCommand(newCommand);
-
-        Argument<string> filenameArgument = new(name: "blog name", description: "The blog filename to update.");
-        newCommand.AddArgument(filenameArgument);
-
-        newCommand.SetHandler(async (file, _, _, essayScanService) =>
-            {
-                Console.WriteLine("HINT: The update command only consider published blogs.");
-                BlogContents contents = await essayScanService.ScanContents();
-
-                BlogContent? content = contents.Posts.FirstOrDefault(c => c.BlogName == file);
-                if (content is null)
-                {
-                    Console.WriteLine($"Target essay {file} is not exist.");
-                    return;
-                }
-
-                content.Metadata.UpdateTime = DateTimeOffset.Now.ToString("o");
-                await essayScanService.SaveBlogContent(content, content.IsDraft);
-            }, filenameArgument,
-            new BlogOptionsBinder(), new LoggerBinder<EssayScanService>(), new EssayScanServiceBinder());
-    }
-
-    private static void AddListCommand(RootCommand rootCommand)
-    {
-        Command command = new("list", "List all blogs");
-        rootCommand.AddCommand(command);
-
-        command.SetHandler(async (_, _, essyScanService) =>
-        {
-            BlogContents contents = await essyScanService.ScanContents();
-
-            Console.WriteLine($"All {contents.Posts.Count} Posts:");
-            foreach (BlogContent content in contents.Posts.OrderBy(x => x.BlogName))
-            {
-                Console.WriteLine($" - {content.BlogName}");
-            }
-
-            Console.WriteLine($"All {contents.Drafts.Count} Drafts:");
-            foreach (BlogContent content in contents.Drafts.OrderBy(x => x.BlogName))
-            {
-                Console.WriteLine($" - {content.BlogName}");
-            }
-        }, new BlogOptionsBinder(), new LoggerBinder<EssayScanService>(), new EssayScanServiceBinder());
-    }
-
-    private static void AddScanCommand(RootCommand rootCommand)
-    {
-        Command command = new("scan", "Scan unused and not found images.");
-        rootCommand.AddCommand(command);
-
-        Option<bool> removeOption =
-            new(name: "--rm", description: "Remove unused images.", getDefaultValue: () => false);
-        command.AddOption(removeOption);
-
-        command.SetHandler(async (_, _, essayScanService, removeOptionValue) =>
-        {
-            BlogContents contents = await essayScanService.ScanContents();
-            List<BlogImageInfo> unusedImages = (from content in contents
-                from image in content.Images
-                where image is { IsUsed: false }
-                select image).ToList();
-
-            if (unusedImages.Count != 0)
-            {
-                Console.WriteLine("Found unused images:");
-                Console.WriteLine("HINT: use '--rm' to remove unused images.");
-            }
-
-            foreach (BlogImageInfo image in unusedImages)
-            {
-                Console.WriteLine($" - {image.File.FullName}");
-            }
-
-            if (removeOptionValue)
-            {
-                foreach (BlogImageInfo image in unusedImages)
-                {
-                    image.File.Delete();
-                }
-            }
-
-            Console.WriteLine("Used not existed images:");
-
-            foreach (BlogContent content in contents)
-            {
-                foreach (FileInfo file in content.NotfoundImages)
-                {
-                    Console.WriteLine($"- {file.Name} in {content.BlogName}");
-                }
-            }
-        }, new BlogOptionsBinder(), new LoggerBinder<EssayScanService>(), new EssayScanServiceBinder(), removeOption);
-    }
-
-    private static void AddPublishCommand(RootCommand rootCommand)
-    {
-        Command command = new("publish", "Publish a new blog file.");
-        rootCommand.AddCommand(command);
-
-        Argument<string> filenameArgument = new(name: "blog name", description: "The published blog filename.");
-        command.AddArgument(filenameArgument);
-
-        command.SetHandler(async (blogOptions, _, essayScanService, filename) =>
-            {
-                BlogContents contents = await essayScanService.ScanContents();
-
-                BlogContent? content = (from blog in contents.Drafts
-                    where blog.BlogName == filename
-                    select blog).FirstOrDefault();
-
-                if (content is null)
-                {
-                    Console.WriteLine("Target blog does not exist.");
-                    return;
-                }
-
-                // 设置发布的时间
-                content.Metadata.Date = DateTimeOffset.Now.ToString("o");
-                content.Metadata.UpdateTime = DateTimeOffset.Now.ToString("o");
-
-                // 将选中的博客文件复制到posts
-                await essayScanService.SaveBlogContent(content, isDraft: false);
-
-                // 复制图片文件夹
-                DirectoryInfo sourceImageDirectory =
-                    new(Path.Combine(blogOptions.Value.Root, "drafts", content.BlogName));
-                DirectoryInfo targetImageDirectory =
-                    new(Path.Combine(blogOptions.Value.Root, "posts", content.BlogName));
-
-                if (sourceImageDirectory.Exists)
-                {
-                    targetImageDirectory.Create();
-                    foreach (FileInfo file in sourceImageDirectory.EnumerateFiles())
-                    {
-                        file.CopyTo(Path.Combine(targetImageDirectory.FullName, file.Name), true);
-                    }
-
-                    sourceImageDirectory.Delete(true);
-                }
-
-                // 删除原始的文件
-                FileInfo sourceBlogFile = new(Path.Combine(blogOptions.Value.Root, "drafts", content.BlogName + ".md"));
-                sourceBlogFile.Delete();
-            }, new BlogOptionsBinder(),
-            new LoggerBinder<EssayScanService>(), new EssayScanServiceBinder(), filenameArgument);
-    }
-
-    private static void AddCompressCommand(RootCommand rootCommand)
-    {
-        Command command = new("compress", "Compress png/jpeg image to webp image to reduce size.");
-        rootCommand.Add(command);
-
-        Option<bool> dryRunOption = new("--dry-run", description: "Dry run the compression task but not write.",
-            getDefaultValue: () => false);
-        command.AddOption(dryRunOption);
-
-        command.SetHandler(ImageCommandHandler,
-            new BlogOptionsBinder(), new LoggerBinder<EssayScanService>(), new LoggerBinder<ImageCompressService>(),
-            new EssayScanServiceBinder(), new ImageCompressServiceBinder(), dryRunOption);
-    }
-
-    private static async Task ImageCommandHandler(IOptions<BlogOptions> _, ILogger<EssayScanService> _1,
-        ILogger<ImageCompressService> _2,
-        IEssayScanService _3, ImageCompressService imageCompressService, bool dryRun)
-    {
-        await imageCompressService.Compress(dryRun);
-    }
-}

src/YaeBlog/Components/BlogInformationCard.razor

@@ -1,6 +1,6 @@
 @using Microsoft.Extensions.Options
-@using YaeBlog.Abstraction
-@using YaeBlog.Models
+@using YaeBlog.Abstractions
+@using YaeBlog.Abstractions.Models
 
 @inject IEssayContentService Contents
 @inject IOptions<BlogOptions> Options

src/YaeBlog/Components/EssayCard.razor

@@ -1,5 +1,5 @@
 @using System.Text.Encodings.Web
-@using YaeBlog.Models
+@using YaeBlog.Abstractions.Models
 
 <div class="flex flex-col p-3">
     <div class="text-3xl font-bold py-2">

src/YaeBlog/Components/GitHeatMap.razor

@@ -1,4 +1,4 @@
-@using YaeBlog.Models
+@using YaeBlog.Abstractions.Models
 @using YaeBlog.Services
 @inject GitHeapMapService GitHeapMapInstance
 

src/YaeBlog/Components/Pages/About.razor

@@ -25,16 +25,23 @@
                         正在明光村幼儿园附属研究生院攻读计算机科学与技术的硕士学位，研究AI编译器和异构编译器。
                     </p>
 
-                    <p class="my-2">
-                        一般在互联网上使用<span class="italic">初冬的朝阳</span>或者<span
-                            class="italic">jackfiled</span>的名字活动。
+                    <p class="my-1">
+                        一般在互联网上使用<span class="italic">初冬的朝阳</span>或者
+                        <span class="italic">jackfiled</span>的名字活动。
                         <span class="line-through">（都是ICP备案过的人了，网名似乎没有太大的用处）</span>
                     </p>
+                    <p class="my-1">
+                        Fun Fact：<span class="italic">jackfiled</span>这个名字来自于2020年我使用链接在树莓派上的9英寸屏幕注册
+                        GitHub的一时兴起，并没有任何特定的含义。
+                        <span class="italic">初冬的朝阳</span>则是源自初中，具体典故已不可考。
+                        至少到目前为止，还没有在要求唯一ID的平台遇见重名的情况。
+                        <span class="line-through">我的真实名字似乎也是如此。</span>
+                    </p>
                 </div>
 
                 <div class="my-4">
                     <p class="my-1">
-                        主要是一个C#程序员，目前也在尝试写一点Rust。
+                        主要是一个.NET程序员，目前也在尝试写一点Rust。
                         <span class="line-through">
                             总体上对于编程语言的态度是“大家都是我的翅膀.jpg”。
                         </span>
@@ -46,7 +53,7 @@
                         常常因为现实的压力而写一些C/C++，现在就在和MLIR殊死搏斗。
                     </p>
                     <p class="my-1">
-                        日常使用Arch Linux。
+                        日常使用Arch Linux，KISS的原则深得我心。
                     </p>
                 </div>
 
@@ -55,7 +62,7 @@
                         100%社恐。日常生活是宅在电脑前面自言自语。
                     </p>
                     <p class="my-1">
-                        兴趣活动是读书和看番，目前在玩戴森球计划和三角洲。
+                        兴趣活动是读书和看番，目前在玩戴森球计划和三角洲。2022年~2024年的时候沉迷于原神，现在偶尔还会登上去过一过剧情。
                     </p>
                 </div>
             </div>

src/YaeBlog/Components/Pages/Archives.razor

@@ -1,6 +1,6 @@
 @page "/blog/archives"
-@using YaeBlog.Abstraction
-@using YaeBlog.Models
+@using YaeBlog.Abstractions
+@using YaeBlog.Abstractions.Models
 
 @inject IEssayContentService Contents
 

src/YaeBlog/Components/Pages/BlogIndex.razor

@@ -1,6 +1,6 @@
 @page "/blog"
-@using YaeBlog.Abstraction
-@using YaeBlog.Models
+@using YaeBlog.Abstractions
+@using YaeBlog.Abstractions.Models
 
 @inject IEssayContentService Contents
 @inject NavigationManager NavigationInstance

src/YaeBlog/Components/Pages/Essays.razor

@@ -1,7 +1,7 @@
 @page "/blog/essays/{BlogKey}"
 @using System.Text.Encodings.Web
-@using YaeBlog.Abstraction
-@using YaeBlog.Models
+@using YaeBlog.Abstractions
+@using YaeBlog.Abstractions.Models
 
 @inject IEssayContentService Contents
 @inject NavigationManager NavigationInstance

src/YaeBlog/Components/Pages/Friends.razor

@@ -1,6 +1,6 @@
 @page "/friends"
 @using Microsoft.Extensions.Options
-@using YaeBlog.Models
+@using YaeBlog.Abstractions.Models
 @inject IOptions<BlogOptions> BlogOptionInstance
 
 <PageTitle>

src/YaeBlog/Components/Pages/Index.razor

@@ -1,6 +1,6 @@
 @page "/"
-@using YaeBlog.Abstraction
-@using YaeBlog.Models
+@using YaeBlog.Abstractions
+@using YaeBlog.Abstractions.Models
 @inject IEssayContentService EssayContentInstance
 
 <PageTitle>
@@ -57,16 +57,17 @@
         </div>
     </div>
 
-    <div class="py-5">
+    <div class="pt-5 pb-1">
         <p class="text-lg">恕我不能亲自为您沏茶，还是非常欢迎您来，能在广阔的互联网世界中发现这里实属不易。</p>
     </div>
 
-    <div class="text-lg pt-2">
+    <div class="text-lg">
         <p class="py-1">
             正在攻读计算机科学与技术的硕士学位，研究方向是AI编译和异构编译！
+            喜欢优雅的代码，香甜的蛋糕等等一切可爱的事物。
+            更多的情报请见<Anchor Text="关于" Address="/about/"></Anchor>。
         </p>
         <p class="py-1">
-            喜欢优雅的代码，香甜的蛋糕等等一切可爱的事物。
         </p>
         <p class="py-1">
             <Anchor Address="/blog/" Text="个人博客"/>中收集了我的各种奇思妙想，如果感兴趣欢迎移步。
@@ -79,7 +80,7 @@
         </p>
         <p class="py-1">
             日常的代码开发使用自建的<Anchor Text="Gitea" Address="https://git.rrricardo.top" NewPage="@(true)"/>进行，个人
-            开发的各种项目都可以在上面找到。
+            开发的各种项目都可以在上面找到。下面的热力图展示了我在Git上的各种动态<span class="line-through">（Everything as Code）</span>。
         </p>
     </div>
 

src/YaeBlog/Components/Pages/Tags.razor

@@ -1,7 +1,7 @@
 @page "/blog/tags/"
 @using System.Text.Encodings.Web
-@using YaeBlog.Abstraction
-@using YaeBlog.Models
+@using YaeBlog.Abstractions
+@using YaeBlog.Abstractions.Models
 
 @inject IEssayContentService Contents
 @inject NavigationManager NavigationInstance

src/YaeBlog/Dockerfile

@@ -4,8 +4,10 @@ ARG COMMIT_ID
 ENV COMMIT_ID=${COMMIT_ID}
 
 WORKDIR /app
-COPY bin/Release/net10.0/publish/ ./
+COPY out/ ./
 COPY source/ ./source/
-COPY appsettings.json .
+COPY src/YaeBlog/appsettings.json .
+
+ENV BLOG__ROOT="./source"
 
 ENTRYPOINT ["dotnet", "YaeBlog.dll", "serve"]

src/YaeBlog/Extensions/WebApplicationBuilderExtensions.cs

@@ -1,7 +1,8 @@
 using AngleSharp;
-using YaeBlog.Abstraction;
+using Microsoft.Extensions.Options;
+using YaeBlog.Abstractions;
 using YaeBlog.Services;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 using YaeBlog.Processors;
 
 namespace YaeBlog.Extensions;
@@ -27,22 +28,25 @@ public static class WebApplicationBuilderExtensions
                 .AddTransient<HeadlinePostRenderProcessor>()
                 .AddTransient<EssayStylesPostRenderProcessor>()
                 .AddTransient<GiteaFetchService>()
+                .AddTransient<BlogChangeWatcher>()
+                .AddTransient<BlogHotReloadService>()
                 .AddSingleton<GitHeapMapService>();
 
             return builder;
         }
 
-        public WebApplicationBuilder AddServer()
+        public WebApplicationBuilder AddYaeCommand(string[] arguments)
         {
-            builder.Services.AddHostedService<BlogHostedService>();
+            builder.Services.AddHostedService<YaeCommandService>(provider =>
+            {
+                IEssayScanService essayScanService = provider.GetRequiredService<IEssayScanService>();
+                IOptions<BlogOptions> blogOptions = provider.GetRequiredService<IOptions<BlogOptions>>();
+                ILogger<YaeCommandService> logger = provider.GetRequiredService<ILogger<YaeCommandService>>();
+                IHostApplicationLifetime applicationLifetime = provider.GetRequiredService<IHostApplicationLifetime>();
 
-            return builder;
-        }
-
-        public WebApplicationBuilder AddWatcher()
-        {
-            builder.Services.AddTransient<BlogChangeWatcher>();
-            builder.Services.AddHostedService<BlogHotReloadService>();
+                return new YaeCommandService(arguments, essayScanService, provider, blogOptions, logger,
+                    applicationLifetime);
+            });
 
             return builder;
         }

src/YaeBlog/Extensions/WebApplicationExtensions.cs

@@ -1,4 +1,4 @@
-using YaeBlog.Abstraction;
+using YaeBlog.Abstractions;
 using YaeBlog.Processors;
 using YaeBlog.Services;
 

src/YaeBlog/Processors/EssayStylesPostRenderProcessor.cs

@@ -1,8 +1,8 @@
 using AngleSharp;
 using AngleSharp.Dom;
-using YaeBlog.Abstraction;
+using YaeBlog.Abstractions;
 using YaeBlog.Extensions;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
 namespace YaeBlog.Processors;
 

src/YaeBlog/Processors/HeadlinePostRenderProcessor.cs

@@ -1,7 +1,7 @@
 using AngleSharp;
 using AngleSharp.Dom;
-using YaeBlog.Abstraction;
-using YaeBlog.Models;
+using YaeBlog.Abstractions;
+using YaeBlog.Abstractions.Models;
 
 namespace YaeBlog.Processors;
 

src/YaeBlog/Processors/ImagePostRenderProcessor.cs

@@ -1,9 +1,9 @@
 using AngleSharp;
 using AngleSharp.Dom;
 using Microsoft.Extensions.Options;
-using YaeBlog.Abstraction;
+using YaeBlog.Abstractions;
 using YaeBlog.Core.Exceptions;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
 namespace YaeBlog.Processors;
 

src/YaeBlog/Program.cs

@@ -1,4 +1,22 @@
-using YaeBlog.Commands;
+using YaeBlog.Components;
+using YaeBlog.Extensions;
 
-YaeBlogCommand command = new();
-await command.RunAsync(args);
+WebApplicationBuilder builder = WebApplication.CreateBuilder(args);
+
+builder.Services.AddRazorComponents()
+    .AddInteractiveServerComponents();
+builder.Services.AddControllers();
+builder.AddYaeBlog();
+builder.AddYaeCommand(args);
+
+WebApplication application = builder.Build();
+
+application.MapStaticAssets();
+application.UseAntiforgery();
+application.UseYaeBlog();
+
+application.MapRazorComponents<App>()
+    .AddInteractiveServerRenderMode();
+application.MapControllers();
+
+await application.RunAsync();

src/YaeBlog/Services/BlogChangeWatcher.cs

@@ -1,5 +1,5 @@
 using Microsoft.Extensions.Options;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
 namespace YaeBlog.Services;
 

src/YaeBlog/Services/BlogHotReloadService.cs

@@ -1,4 +1,4 @@
-using YaeBlog.Abstraction;
+using YaeBlog.Abstractions;
 
 namespace YaeBlog.Services;
 

src/YaeBlog/Services/EssayContentService.cs

@@ -1,7 +1,7 @@
 using System.Collections.Concurrent;
 using System.Diagnostics.CodeAnalysis;
-using YaeBlog.Abstraction;
-using YaeBlog.Models;
+using YaeBlog.Abstractions;
+using YaeBlog.Abstractions.Models;
 
 namespace YaeBlog.Services;
 

src/YaeBlog/Services/EssayScanService.cs

@@ -3,9 +3,9 @@ using System.Text.RegularExpressions;
 using Imageflow.Bindings;
 using Imageflow.Fluent;
 using Microsoft.Extensions.Options;
-using YaeBlog.Abstraction;
+using YaeBlog.Abstractions;
 using YaeBlog.Core.Exceptions;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 using YamlDotNet.Core;
 using YamlDotNet.Serialization;
 

src/YaeBlog/Services/GitHeatMapService.cs

@@ -1,7 +1,7 @@
 using DotNext;
 using Microsoft.Extensions.Options;
 using YaeBlog.Extensions;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
 namespace YaeBlog.Services;
 

src/YaeBlog/Services/GiteaFetchService.cs

@@ -3,7 +3,7 @@ using System.Text.Json;
 using DotNext;
 using Microsoft.Extensions.Options;
 using YaeBlog.Core.Exceptions;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
 namespace YaeBlog.Services;
 

src/YaeBlog/Services/ImageCompressService.cs

@@ -1,7 +1,7 @@
 using Imageflow.Fluent;
-using YaeBlog.Abstraction;
+using YaeBlog.Abstractions;
 using YaeBlog.Core.Exceptions;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
 namespace YaeBlog.Services;
 

src/YaeBlog/Services/MarkdownWordCounter.cs

@@ -1,5 +1,5 @@
 using YaeBlog.Extensions;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
 namespace YaeBlog.Services
 {

src/YaeBlog/Services/RendererService.cs

@@ -3,9 +3,9 @@ using System.Diagnostics;
 using System.Text;
 using System.Text.RegularExpressions;
 using Markdig;
-using YaeBlog.Abstraction;
+using YaeBlog.Abstractions;
 using YaeBlog.Core.Exceptions;
-using YaeBlog.Models;
+using YaeBlog.Abstractions.Models;
 
 namespace YaeBlog.Services;
 

src/YaeBlog/Services/YaeCommandService.cs

@@ -0,0 +1,281 @@
+using System.CommandLine;
+using System.CommandLine.Invocation;
+using System.Text;
+using Microsoft.Extensions.Options;
+using YaeBlog.Abstractions;
+using YaeBlog.Core.Exceptions;
+using YaeBlog.Abstractions.Models;
+
+namespace YaeBlog.Services;
+
+public class YaeCommandService(
+    string[] arguments,
+    IEssayScanService essayScanService,
+    IServiceProvider serviceProvider,
+    IOptions<BlogOptions> blogOptions,
+    ILogger<YaeCommandService> logger,
+    IHostApplicationLifetime applicationLifetime)
+    : IHostedService
+{
+    private readonly BlogOptions _blogOptions = blogOptions.Value;
+    private bool _oneShotCommandFlag = true;
+
+    public async Task StartAsync(CancellationToken cancellationToken)
+    {
+        RootCommand rootCommand = new("YaeBlog CLI");
+
+        RegisterServeCommand(rootCommand);
+        RegisterWatchCommand(rootCommand, cancellationToken);
+
+        RegisterNewCommand(rootCommand);
+        RegisterUpdateCommand(rootCommand);
+        RegisterScanCommand(rootCommand);
+        RegisterPublishCommand(rootCommand);
+        RegisterCompressCommand(rootCommand);
+
+        int exitCode = await rootCommand.InvokeAsync(arguments);
+
+        if (exitCode != 0)
+        {
+            throw new BlogCommandException($"YaeBlog command exited with no-zero code {exitCode}");
+        }
+
+        if (_oneShotCommandFlag)
+        {
+            applicationLifetime.StopApplication();
+        }
+    }
+
+    public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask;
+
+    private void RegisterServeCommand(RootCommand rootCommand)
+    {
+        Command command = new("serve", "Start http server.");
+        rootCommand.AddCommand(command);
+
+        command.SetHandler(HandleServeCommand);
+
+        // When invoking the root command without sub command, fallback to serve command.
+        rootCommand.SetHandler(HandleServeCommand);
+    }
+
+    private async Task HandleServeCommand(InvocationContext context)
+    {
+        _oneShotCommandFlag = false;
+
+        logger.LogInformation("Failed to load cache, re-render essays.");
+        RendererService rendererService = serviceProvider.GetRequiredService<RendererService>();
+        await rendererService.RenderAsync();
+    }
+
+    private void RegisterWatchCommand(RootCommand rootCommand, CancellationToken cancellationToken)
+    {
+        Command command = new("watch", "Start a blog watcher that re-render when file changes.");
+        rootCommand.AddCommand(command);
+
+        command.SetHandler(async _ =>
+        {
+            _oneShotCommandFlag = false;
+
+            // BlogHotReloadService is derived from BackgroundService, but we do not let framework trigger it.
+            BlogHotReloadService blogHotReloadService = serviceProvider.GetRequiredService<BlogHotReloadService>();
+            await blogHotReloadService.StartAsync(cancellationToken);
+        });
+    }
+
+    private void RegisterNewCommand(RootCommand rootCommand)
+    {
+        Command command = new("new", "Create a new blog file and image directory.");
+        rootCommand.AddCommand(command);
+
+        Argument<string> filenameArgument = new(name: "blog name", description: "The created blog filename.");
+        command.AddArgument(filenameArgument);
+
+        command.SetHandler(HandleNewCommand, filenameArgument);
+    }
+
+    private async Task HandleNewCommand(string filename)
+    {
+        BlogContents contents = await essayScanService.ScanContents();
+
+        if (contents.Posts.Any(content => content.BlogName == filename))
+        {
+            throw new BlogCommandException("There exits the same title blog in posts.");
+        }
+
+        await essayScanService.SaveBlogContent(new BlogContent(
+            new FileInfo(Path.Combine(_blogOptions.Root, "drafts", filename + ".md")),
+            new MarkdownMetadata
+            {
+                Title = filename,
+                Date = DateTimeOffset.Now.ToString("o"),
+                UpdateTime = DateTimeOffset.Now.ToString("o")
+            },
+            string.Empty, true, [], []
+        ));
+
+        logger.LogInformation("Create new blog '{}'", filename);
+    }
+
+    private void RegisterUpdateCommand(RootCommand rootCommand)
+    {
+        Command command = new("update", "Update the blog essay.");
+        rootCommand.AddCommand(command);
+
+        Argument<string> filenameArgument = new(name: "blog name", description: "The blog filename to update.");
+        command.AddArgument(filenameArgument);
+
+        command.SetHandler(HandleUpdateCommand, filenameArgument);
+    }
+
+    private async Task HandleUpdateCommand(string filename)
+    {
+        logger.LogInformation("The update command only considers published blogs.");
+        BlogContents contents = await essayScanService.ScanContents();
+
+        BlogContent? content = contents.Posts.FirstOrDefault(c => c.BlogName == filename);
+        if (content is null)
+        {
+            throw new BlogCommandException($"Target essay {filename} is not exist.");
+        }
+
+        content.Metadata.UpdateTime = DateTimeOffset.Now.ToString("o");
+        await essayScanService.SaveBlogContent(content, content.IsDraft);
+        logger.LogInformation("Update time of essay '{}' updated.", content.BlogName);
+    }
+
+    private void RegisterScanCommand(RootCommand rootCommand)
+    {
+        Command command = new("scan", "Scan unused and not found images.");
+        rootCommand.AddCommand(command);
+
+        Option<bool> removeOption =
+            new(name: "--rm", description: "Remove unused images.", getDefaultValue: () => false);
+        command.AddOption(removeOption);
+
+        command.SetHandler(HandleScanCommand, removeOption);
+    }
+
+    private async Task HandleScanCommand(bool removeUnusedImages)
+    {
+        BlogContents contents = await essayScanService.ScanContents();
+        List<BlogImageInfo> unusedImages = (from content in contents
+            from image in content.Images
+            where image is { IsUsed: false }
+            select image).ToList();
+
+        if (unusedImages.Count != 0)
+        {
+            StringBuilder builder = new();
+            builder.Append("Found unused images:").Append('\n');
+
+            foreach (BlogImageInfo image in unusedImages)
+            {
+                builder.Append('\t').Append("- ").Append(image.File.FullName).Append('\n');
+            }
+
+            logger.LogInformation("{}", builder.ToString());
+            logger.LogInformation("HINT: use '--rm' to remove unused images.");
+        }
+
+        if (removeUnusedImages)
+        {
+            foreach (BlogImageInfo image in unusedImages)
+            {
+                image.File.Delete();
+            }
+        }
+
+        StringBuilder infoBuilder = new();
+        infoBuilder.Append("Used not existed images:\n");
+
+        bool flag = false;
+        foreach (BlogContent content in contents)
+        {
+            foreach (FileInfo file in content.NotfoundImages)
+            {
+                flag = true;
+                infoBuilder.Append('\t').Append("- ").Append(file.Name).Append(" in ").Append(content.BlogName)
+                    .Append('\n');
+            }
+        }
+
+        if (flag)
+        {
+            logger.LogInformation("{}", infoBuilder.ToString());
+        }
+    }
+
+    private void RegisterPublishCommand(RootCommand rootCommand)
+    {
+        Command command = new("publish", "Publish a new blog file.");
+        rootCommand.AddCommand(command);
+
+        Argument<string> filenameArgument = new(name: "blog name", description: "The published blog filename.");
+        command.AddArgument(filenameArgument);
+
+        command.SetHandler(HandlePublishCommand, filenameArgument);
+    }
+
+    private async Task HandlePublishCommand(string filename)
+    {
+        BlogContents contents = await essayScanService.ScanContents();
+
+        BlogContent? content = (from blog in contents.Drafts
+            where blog.BlogName == filename
+            select blog).FirstOrDefault();
+
+        if (content is null)
+        {
+            throw new BlogCommandException("Target blog doest not exist.");
+        }
+
+        logger.LogInformation("Publish blog {}", content.BlogName);
+
+        // 设置发布的时间
+        content.Metadata.Date = DateTimeOffset.Now.ToString("o");
+        content.Metadata.UpdateTime = DateTimeOffset.Now.ToString("o");
+
+        // 将选中的博客文件复制到posts
+        await essayScanService.SaveBlogContent(content, isDraft: false);
+
+        // 复制图片文件夹
+        DirectoryInfo sourceImageDirectory =
+            new(Path.Combine(blogOptions.Value.Root, "drafts", content.BlogName));
+        DirectoryInfo targetImageDirectory =
+            new(Path.Combine(blogOptions.Value.Root, "posts", content.BlogName));
+
+        if (sourceImageDirectory.Exists)
+        {
+            targetImageDirectory.Create();
+            foreach (FileInfo file in sourceImageDirectory.EnumerateFiles())
+            {
+                file.CopyTo(Path.Combine(targetImageDirectory.FullName, file.Name), true);
+            }
+
+            sourceImageDirectory.Delete(true);
+        }
+
+        // 删除原始的文件
+        FileInfo sourceBlogFile = new(Path.Combine(blogOptions.Value.Root, "drafts", content.BlogName + ".md"));
+        sourceBlogFile.Delete();
+    }
+
+    private void RegisterCompressCommand(RootCommand rootCommand)
+    {
+        Command command = new("compress", "Compress png/jpeg image to webp image to reduce size.");
+        rootCommand.Add(command);
+
+        Option<bool> dryRunOption = new("--dry-run", description: "Dry run the compression task but not write.",
+            getDefaultValue: () => false);
+        command.AddOption(dryRunOption);
+
+        command.SetHandler(HandleCompressCommand, dryRunOption);
+    }
+
+    private async Task HandleCompressCommand(bool dryRun)
+    {
+        ImageCompressService imageCompressService = serviceProvider.GetRequiredService<ImageCompressService>();
+        await imageCompressService.Compress(dryRun);
+    }
+}

src/YaeBlog/YaeBlog.csproj

@@ -13,6 +13,7 @@
 
   <ItemGroup>
     <ProjectReference Include="../../third-party/BlazorSvgComponents/src/BlazorSvgComponents/BlazorSvgComponents.csproj" />
+    <ProjectReference Include="..\YaeBlog.Abstractions\YaeBlog.Abstractions.csproj" />
   </ItemGroup>
 
   <ItemGroup>
@@ -27,6 +28,6 @@
 
   <PropertyGroup>
     <ClientAssetsRestoreCommand>pnpm install</ClientAssetsRestoreCommand>
-    <ClientAssetsBuildCommand>pwsh ../../build.ps1 tailwind</ClientAssetsBuildCommand>
+    <ClientAssetsBuildCommand>pwsh tailwind.ps1</ClientAssetsBuildCommand>
   </PropertyGroup>
 </Project>

src/YaeBlog/appsettings.json

@@ -18,7 +18,7 @@
     "Links": [
       {
         "Name": "Ichirinko",
-        "Description": "这是个大哥",
+        "Description": "黑历史集合地，naive的代价",
         "Link": "https://ichirinko.top",
         "AvatarImage": "https://ichirinko-blog-img-1.oss-cn-shenzhen.aliyuncs.com/Pic_res/img/202209122110798.png"
       },

src/YaeBlog/tailwind.ps1

@@ -0,0 +1,11 @@
+#!/pwsh
+
+[cmdletbinding()]
+param(
+    [string]$Output = "wwwroot"
+)
+
+end {
+    Write-Host "Build tailwind css into $Output."
+    pnpm tailwindcss -i wwwroot/tailwind.css -o $Output/tailwind.g.css
+}