feat: add render duration in footer

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;

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}})
 }

templates/base.html.tmpl

@@ -17,6 +17,7 @@
             </nav>
         </header>
         {{ template "content" . }}
+        {{ template "footer" . }}
     </body>
 </html>
 {{ end }}

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 }}

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>