From b9aa62b1a5d3e68bd134eb4ac52b9c3fdc6816f2 Mon Sep 17 00:00:00 2001
From: leohhhn <hudakleon@gmail.com>
Date: Thu, 16 Jan 2025 18:41:46 +0100
Subject: [PATCH] render

---
 .../gno.land/r/gnoland/users/v1/render.gno    | 87 ++++++++++++-------
 1 file changed, 55 insertions(+), 32 deletions(-)

diff --git a/examples/gno.land/r/gnoland/users/v1/render.gno b/examples/gno.land/r/gnoland/users/v1/render.gno
index 34aec8ed58b..953c2fcfeaf 100644
--- a/examples/gno.land/r/gnoland/users/v1/render.gno
+++ b/examples/gno.land/r/gnoland/users/v1/render.gno
@@ -17,52 +17,75 @@ func Render(path string) string {
 	var out string
 	req := realmpath.Parse(path)
 
-	// Render home page
 	if req.Path == "" {
-		p := pager.NewPager(users.GetReadonlyAddrStore(), 50, false)
-		page := p.MustGetPageByPath(path)
+		out += renderHomePage(req.Path)
+	}
 
-		out += "# gno.land user registry\n"
+	// Render single user page
+	data, isLatest, isName := resolveUser(req.Path)
+	if data == nil {
+		return render404()
+	}
 
-		for _, item := range page.Items {
-			data := item.Value.(*users.UserData)
-			if !data.IsDeleted() {
-				out += ufmt.Sprintf("- User [**%s**](/r/gnoland/users/v1:%s)\n", data.Name(), data.Name())
-			}
-		}
+	// Otherwise, render the user page
+	return renderUserPage(data, req.Path, isName, isLatest)
+}
 
-		out += "\n"
-		out += page.Picker()
-		out += "\n\n"
-		out += "Page " + strconv.Itoa(page.PageNumber) + " of " + strconv.Itoa(page.TotalPages) + "\n\n"
+func renderHomePage(path string) string {
+	var out string
+	p := pager.NewPager(users.GetReadonlyAddrStore(), 50, false)
+	page := p.MustGetPageByPath(path)
 
-		return out
-	}
+	out += "# gno.land user registry\n"
 
-	// Render specific user page
-	var data *users.UserData
-	if std.Address(req.Path).IsValid() {
-		data = users.ResolveAddress(std.Address(req.Path))
-	} else {
-		data, _ = users.ResolveName(req.Path)
+	for _, item := range page.Items {
+		data := item.Value.(*users.UserData)
+		if !data.IsDeleted() {
+			out += ufmt.Sprintf("- User [**%s**](/r/gnoland/users/v1:%s)\n", data.Name(), data.Name())
+		}
 	}
 
-	if data == nil {
-		out += md.H1("404")
-		out += "This user does not exist or has been deleted.\n"
-	} else {
-		out += renderUserPage(data)
-	}
+	out += "\n"
+	out += page.Picker()
+	out += "\n\n"
+	out += "Page " + strconv.Itoa(page.PageNumber) + " of " + strconv.Itoa(page.TotalPages) + "\n\n"
 
 	return out
 }
 
-func renderUserPage(lookup *users.UserData) string {
-	out := md.H1("User " + lookup.Name())
-	out += ufmt.Sprintf("Address: %s\n\n", lookup.Addr().String())
+// resolveUser resolves the user based on the path, determining if it's a name or address
+func resolveUser(path string) (*users.UserData, bool, bool) {
+	if std.Address(path).IsValid() {
+		return users.ResolveAddress(std.Address(path)), false, false
+	}
+
+	data, isLatest := users.ResolveName(path)
+	return data, isLatest, true
+}
+
+// renderUserPage generates the user page based on user data and path
+func renderUserPage(data *users.UserData, query string, isName, isLatest bool) string {
+	var out string
+
+	out += md.H1("User " + data.Name())
+	out += ufmt.Sprintf("Address: %s\n\n", data.Addr().String())
+
+	if isName && !isLatest {
+		out += md.Paragraph(ufmt.Sprintf(
+			"Note: `%s` is a previous name of `%s`.",
+			query, data.Name()))
+	}
+
 	out += md.H2("Bio")
-	out += profile.GetStringField(lookup.Addr(), "Bio", "No bio defined.")
+	out += profile.GetStringField(data.Addr(), "Bio", "No bio defined.")
 	out += "\n\n"
 
 	return out
 }
+
+// render404 generates a 404 error page
+func render404() (out string) {
+	out += md.H1("404")
+	out += "This user does not exist or has been deleted.\n"
+	return out
+}