From 454d04bc8bf519ba0477954f12555d04f590fcfa Mon Sep 17 00:00:00 2001
From: Tobias Klika <github.8qp8l@alias.swcs.pro>
Date: Wed, 25 Mar 2026 16:02:05 +0100
Subject: [PATCH] add vite script taghelper

---
 zero/Frontend/ViteScriptTagHelper.cs | 44 ++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 zero/Frontend/ViteScriptTagHelper.cs

diff --git a/zero/Frontend/ViteScriptTagHelper.cs b/zero/Frontend/ViteScriptTagHelper.cs
new file mode 100644
index 00000000..7753b013
--- /dev/null
+++ b/zero/Frontend/ViteScriptTagHelper.cs
@@ -0,0 +1,44 @@
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc.Rendering;
+using Microsoft.AspNetCore.Mvc.ViewFeatures;
+using Microsoft.AspNetCore.Razor.TagHelpers;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Options;
+
+namespace zero.Frontend;
+
+[HtmlTargetElement("app-vitescript", Attributes = "src", TagStructure = TagStructure.NormalOrSelfClosing)]
+public class ViteScriptTagHelper(IWebHostEnvironment env, IZeroOptions options) : TagHelper
+{
+  [HtmlAttributeNotBound]
+  [ViewContext]
+  public ViewContext ViewContext { get; set; } = null!;
+
+  [HtmlAttributeName("src")]
+  public string Src { get; set; }
+
+
+  public override void Process(TagHelperContext context, TagHelperOutput output)
+  {
+    if (!env.IsDevelopment())
+    {
+      output.SuppressOutput();
+      return;
+    }
+
+    int? viteProxyPort = 5123;
+#if DEBUG
+    viteProxyPort = options.For<ViteProxy.ViteProxyOptions>().Port;
+#endif
+
+    HttpRequest request = ViewContext.HttpContext.Request;
+    string fullPath = $"{request.Scheme}://{request.Host.Host}:{viteProxyPort}/{Src}";
+
+    output.TagName = "script";
+    output.Attributes.SetAttribute("type", "module");
+    output.Attributes.SetAttribute("defer", string.Empty);
+    output.Attributes.SetAttribute("crossorigin", string.Empty);
+    output.Attributes.SetAttribute("src", fullPath);
+  }
+}
\ No newline at end of file