fix: update title/description

NostrServices/Controllers/OpenGraphController.cs

@@ -200,6 +200,43 @@ public class OpenGraphController : Controller
             }
 
             doc.Head?.AppendChild(tag);
+
+            var isOgTitle = ex.Attributes.Any(a => a is {Key: "property", Value: "og:title"});
+            if (isOgTitle && doc.Head != default)
+            {
+                var titleTag = doc.Head.QuerySelector("title");
+                var ogTitle = ex.Attributes.FirstOrDefault(a => a.Key is "content");
+                if (!string.IsNullOrEmpty(ogTitle.Value))
+                {
+                    if (titleTag == default)
+                    {
+                        var newTitle = doc.CreateElement("title");
+                        doc.Head.AppendChild(newTitle);
+                        titleTag = newTitle;
+                    }
+
+                    titleTag.TextContent = ogTitle.Value;
+                }
+            }
+
+            var isOgDesc = ex.Attributes.Any(a => a is {Key: "property", Value: "og:description"});
+            if (isOgDesc && doc.Head != default)
+            {
+                var ogDesc = ex.Attributes.FirstOrDefault(a => a.Key is "content");
+                var descriptionTag = doc.Head?.QuerySelector("meta[name='description']");
+                if (!string.IsNullOrEmpty(ogDesc.Value))
+                {
+                    if (descriptionTag == default)
+                    {
+                        var newDesc = doc.CreateElement("meta");
+                        newDesc.SetAttribute("name", "description");
+                        doc.Head?.AppendChild(newDesc);
+                        descriptionTag = newDesc;
+                    }
+
+                    descriptionTag.SetAttribute("content", ogDesc.Value);
+                }
+            }
         }
 
         return doc;