From 26512c2b2952116934945af79adc3516c8f842c0 Mon Sep 17 00:00:00 2001
From: Nikita Tokarchuk <nikita@tokarch.uk>
Date: Wed, 5 Jan 2022 01:04:27 +0100
Subject: [PATCH] Add yandex metrica tag

---
 cmd/renderer/main.go            |  2 +-
 pkg/config/config.go            |  7 +++++++
 pkg/templates/analytics.go.tmpl | 18 ++++++++++++++++++
 pkg/templates/funcs.go          |  8 ++++++++
 pkg/templates/head.go.tmpl      |  2 ++
 pkg/templates/templates.go      |  1 +
 6 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 pkg/templates/analytics.go.tmpl

diff --git a/cmd/renderer/main.go b/cmd/renderer/main.go
index 46419a7..71bb1e2 100644
--- a/cmd/renderer/main.go
+++ b/cmd/renderer/main.go
@@ -52,7 +52,7 @@ func main() {
 		logrus.Fatal(err)
 	}
 
-	templateFuncs := &templates.Funcs{Version: Version}
+	templateFuncs := &templates.Funcs{Version: Version, Site: config.Site}
 	err = templates.Load(templateFuncs)
 	if err != nil {
 		logrus.Fatal(err)
diff --git a/pkg/config/config.go b/pkg/config/config.go
index 68f1f8d..b13c52e 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -23,6 +23,10 @@ type Content struct {
 	PostsPerPage int     `mapstructure:"postsPerPage"`
 }
 
+type Site struct {
+	YandexKey string `mapstructure:"yandexKey"`
+}
+
 // Config contains application configuration
 type Config struct {
 	Verbose string  `mapstructure:"verbose"`
@@ -30,6 +34,7 @@ type Config struct {
 	Addr    string  `mapstructure:"addr"`
 	Unix    string  `mapstructure:"unix"`
 	Content Content `mapstructure:"content"`
+	Site    Site    `mapstructure:"site"`
 }
 
 // initialize default values on app-start
@@ -50,6 +55,8 @@ func init() {
 	pflag.String("content.pinned", "contact", "pinned page slug")
 	pflag.Int("content.postsPerPage", 5, "amount of posts per page")
 
+	pflag.String("site.yandexKey", "", "yandex analytics key")
+
 	pflag.Parse()
 
 	viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
diff --git a/pkg/templates/analytics.go.tmpl b/pkg/templates/analytics.go.tmpl
new file mode 100644
index 0000000..fd17f60
--- /dev/null
+++ b/pkg/templates/analytics.go.tmpl
@@ -0,0 +1,18 @@
+{{ with $yk := getYaKey }}
+{{ if $yk }}
+<!-- Yandex.Metrika counter -->
+<script type="text/javascript" >
+   (function(m,e,t,r,i,k,a){m[i]=m[i]||function(){(m[i].a=m[i].a||[]).push(arguments)};
+   m[i].l=1*new Date();k=e.createElement(t),a=e.getElementsByTagName(t)[0],k.async=1,k.src=r,a.parentNode.insertBefore(k,a)})
+   (window, document, "script", "https://mc.yandex.ru/metrika/tag.js", "ym");
+
+   ym({{ $yk }}, "init", {
+        clickmap:true,
+        trackLinks:true,
+        accurateTrackBounce:true
+   });
+</script>
+<noscript><div><img src="https://mc.yandex.ru/watch/{{ $yk }}" style="position:absolute; left:-9999px;" alt="" /></div></noscript>
+<!-- /Yandex.Metrika counter -->
+{{ end }}
+{{ end }}
\ No newline at end of file
diff --git a/pkg/templates/funcs.go b/pkg/templates/funcs.go
index 41d1927..4c4254f 100644
--- a/pkg/templates/funcs.go
+++ b/pkg/templates/funcs.go
@@ -4,10 +4,13 @@ import (
 	"html/template"
 	"net/url"
 	"sync"
+
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/config"
 )
 
 type Funcs struct {
 	Version string
+	Site    config.Site
 
 	compiledJSAppURL string
 
@@ -54,6 +57,10 @@ func (f *Funcs) getBlogURL() string {
 	return URLBlog
 }
 
+func (f *Funcs) getYaKey() string {
+	return f.Site.YandexKey
+}
+
 // Use returns a func map with template helpers functions
 func (f *Funcs) Use() template.FuncMap {
 	return template.FuncMap{
@@ -62,5 +69,6 @@ func (f *Funcs) Use() template.FuncMap {
 		"getJSAppURL": f.getJSAppURL,
 		"getIndexURL": f.getIndexURL,
 		"getBlogURL":  f.getBlogURL,
+		"getYaKey":    f.getYaKey,
 	}
 }
diff --git a/pkg/templates/head.go.tmpl b/pkg/templates/head.go.tmpl
index 4c805e2..63e5564 100644
--- a/pkg/templates/head.go.tmpl
+++ b/pkg/templates/head.go.tmpl
@@ -6,4 +6,6 @@
     <title>{{ .Title }}</title>
 
     <script type="text/javascript" src="{{ getJSAppURL }}" async></script>
+
+    {{ template "analytics.go.tmpl" . }}
 </head>
\ No newline at end of file
diff --git a/pkg/templates/templates.go b/pkg/templates/templates.go
index 90c27d6..78d863c 100644
--- a/pkg/templates/templates.go
+++ b/pkg/templates/templates.go
@@ -18,6 +18,7 @@ import (
 //go:embed index.go.tmpl
 //go:embed menu.go.tmpl
 //go:embed post.go.tmpl
+//go:embed analytics.go.tmpl
 var content embed.FS
 
 // List of compiled go-templates