From 560999995ff4d8e9ec3393c3aaca4d7fbace7c95 Mon Sep 17 00:00:00 2001
From: xengineering <me@xengineering.eu>
Date: Mon, 25 Mar 2024 20:10:12 +0100
Subject: Make parsed templates a global variable

This allows to parse the templates during startup and use them in each
HTTP handler without explicit passing to these handlers.
---
 main.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/main.go b/main.go
index 511b434..80247e8 100644
--- a/main.go
+++ b/main.go
@@ -11,6 +11,7 @@ import (
 
 //go:embed simple.css/simple.css templates/index.html
 var static embed.FS
+var templates *template.Template
 
 func main() {
 	configPath := parseFlags()
@@ -37,13 +38,13 @@ func parseFlags() string {
 
 // index() returns a HTTP handler for the index page.
 func index(devices DevicesConfig) func(http.ResponseWriter, *http.Request) {
-	tmpl, err := template.ParseFS(static, "templates/index.html")
+	templates, err := template.ParseFS(static, "templates/index.html")
 	if err != nil {
 		log.Fatal(err)
 	}
 
 	return func(w http.ResponseWriter, r *http.Request) {
-		err = tmpl.Execute(w, devices)
+		err = templates.Execute(w, devices)
 		if err != nil {
 			http.Error(w, fmt.Sprint(err), http.StatusInternalServerError)
 			return
-- 
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