From c05b34f4cdea5f0c62fcef325f37a32d75da3685 Mon Sep 17 00:00:00 2001
From: Marc Cataford <mcat@riseup.net>
Date: Sat, 21 Sep 2024 13:09:43 -0400
Subject: [PATCH] feat: add render duration in footer

---
 static/main.css            | 15 ++++++++++++---
 templates.go               | 25 +++++++++++++++++++++++--
 templates/base.html.tmpl   |  1 +
 templates/footer.html.tmpl |  7 +++++++
 templates/index.html.tmpl  |  2 +-
 5 files changed, 44 insertions(+), 6 deletions(-)
 create mode 100644 templates/footer.html.tmpl

diff --git a/static/main.css b/static/main.css
index 66b2b68..8888c6d 100644
--- a/static/main.css
+++ b/static/main.css
@@ -2,16 +2,16 @@ body {
     margin: 0;
 }
 
-header {
+body > header {
     padding: 10px;
 }
 
-header > h1 {
+body > header > h1 {
     margin: 0;
     font-size: 1.2em;
 }
 
-header ul {
+body > header ul {
     list-style: none;
     display: flex;
     gap: 5px;
@@ -19,6 +19,15 @@ header ul {
     padding: 5px;
 }
 
+body > footer {
+    font-size: 0.9em;
+    margin-top: 10px;
+    padding: 10px;
+    display: flex;
+    gap: 5px;
+    justify-content: center;
+}
+
 #items {
     list-style: none;
     padding-left: 0;
diff --git a/templates.go b/templates.go
index cd9d894..6575506 100644
--- a/templates.go
+++ b/templates.go
@@ -5,8 +5,13 @@ import (
 	"io"
 	"path/filepath"
 	"text/template"
+	"time"
 )
 
+func getRenderDuration(start time.Time) time.Duration {
+	return time.Now().Sub(start)
+}
+
 func Render(w io.Writer, templateName string, data interface{}) error {
 	asTemplatePath := func(templateName string) string {
 		return filepath.Join("templates", fmt.Sprintf("%s.html.tmpl", templateName))
@@ -15,13 +20,29 @@ func Render(w io.Writer, templateName string, data interface{}) error {
 	templatePartials := []string{
 		asTemplatePath(templateName),
 		asTemplatePath("base"),
+		asTemplatePath("footer"),
 	}
 
-	tmpl, err := template.New(templateName).ParseFiles(templatePartials...)
+	start := time.Now()
+
+	tmpl := template.New(templateName).Funcs(template.FuncMap{
+		"getRenderDuration": getRenderDuration,
+	})
+
+	tmpl, err := tmpl.ParseFiles(templatePartials...)
 
 	if err != nil {
 		return err
 	}
 
-	return tmpl.ExecuteTemplate(w, "base", data)
+	type RenderMeta struct {
+		RenderStart time.Time
+	}
+
+	type RenderContext struct {
+		Data interface{}
+		Meta RenderMeta
+	}
+
+	return tmpl.ExecuteTemplate(w, "base", RenderContext{Data: data, Meta: RenderMeta{RenderStart: start}})
 }
diff --git a/templates/base.html.tmpl b/templates/base.html.tmpl
index 5968ab9..7127415 100644
--- a/templates/base.html.tmpl
+++ b/templates/base.html.tmpl
@@ -17,6 +17,7 @@
             </nav>
         </header>
         {{ template "content" . }}
+        {{ template "footer" . }}
     </body>
 </html>
 {{ end }}
diff --git a/templates/footer.html.tmpl b/templates/footer.html.tmpl
new file mode 100644
index 0000000..b683307
--- /dev/null
+++ b/templates/footer.html.tmpl
@@ -0,0 +1,7 @@
+{{ define "footer" }}
+<footer>
+    <span>Morning Coffee</span>
+    <span>☕</span>
+    <span>Rendered: {{ getRenderDuration .Meta.RenderStart }}</span>
+</footer>
+{{ end }}
diff --git a/templates/index.html.tmpl b/templates/index.html.tmpl
index 56fbd2c..4b98f3d 100644
--- a/templates/index.html.tmpl
+++ b/templates/index.html.tmpl
@@ -1,6 +1,6 @@
 {{ define "content" }}
 <ul id="items">
-    {{ range . }}
+    {{ range .Data }}
         <li>
             <a href="{{ .Url }}">{{ .Title }}</a>
             <span>{{ .PublishedDate }}</span>