refact: Fully refactor the conceptional structure and functional behaviour.

YaeBlog.Core/Extensions/WebApplicationBuilderExtensions.cs

@@ -0,0 +1,33 @@
+using Microsoft.AspNetCore.Builder;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+using Microsoft.FluentUI.AspNetCore.Components;
+using YaeBlog.Core.Models;
+using YaeBlog.Core.Processors;
+using YaeBlog.Core.Services;
+
+namespace YaeBlog.Core.Extensions;
+
+public static class WebApplicationBuilderExtensions
+{
+    public static WebApplicationBuilder AddYaeBlog(this WebApplicationBuilder builder)
+    {
+        builder.Services.Configure<BlogOptions>(builder.Configuration.GetSection(BlogOptions.OptionName));
+
+        builder.Services.AddHttpClient();
+        builder.Services.AddFluentUIComponents();
+
+        builder.Services.AddMarkdig();
+        builder.Services.AddYamlParser();
+        builder.Services.AddSingleton<EssayScanService>();
+        builder.Services.AddSingleton<RendererService>();
+        builder.Services.AddSingleton<EssayContentService>();
+        builder.Services.AddTransient<ImagePostRenderProcessor>();
+        builder.Services.AddTransient<BlogOptions>(provider =>
+            provider.GetRequiredService<IOptions<BlogOptions>>().Value);
+
+        builder.Services.AddHostedService<BlogHostedService>();
+
+        return builder;
+    }
+}