From b766eefe7cfaf334aeb607171250a2b4b9eaabf0 Mon Sep 17 00:00:00 2001
From: Brian Picciano <mediocregopher@gmail.com>
Date: Tue, 24 Jan 2023 13:12:46 +0100
Subject: [PATCH] Add gemini CTA to HTTP pages

---
 src/http/tpl.go              | 19 +++++++++++++++----
 src/http/tpl/follow.html     |  2 ++
 src/http/tpl/gemini-cta.html | 12 ++++++++++++
 src/http/tpl/index.html      |  2 ++
 src/http/tpl/post.html       |  2 ++
 src/http/tpl/posts.html      |  2 ++
 6 files changed, 35 insertions(+), 4 deletions(-)
 create mode 100644 src/http/tpl/gemini-cta.html

diff --git a/src/http/tpl.go b/src/http/tpl.go
index 4af715a..0f6b531 100644
--- a/src/http/tpl.go
+++ b/src/http/tpl.go
@@ -99,6 +99,9 @@ func (a *api) tplFuncs() template.FuncMap {
 		"DateTimeFormat": func(t time.Time) string {
 			return t.Format("2006-01-02")
 		},
+		"SafeURL": func(u string) template.URL {
+			return template.URL(u)
+		},
 	}
 }
 
@@ -123,6 +126,7 @@ func (a *api) mustParseTpl(name string) *template.Template {
 
 func (a *api) mustParseBasedTpl(name string) *template.Template {
 	tpl := a.mustParseTpl(name)
+	tpl = template.Must(tpl.New("gemini-cta.html").Parse(mustReadTplFile("gemini-cta.html")))
 	tpl = template.Must(tpl.New("base.html").Parse(mustReadTplFile("base.html")))
 	return tpl
 }
@@ -131,15 +135,19 @@ type tplData struct {
 	Payload interface{}
 }
 
+func newTPLData(r *http.Request, payload interface{}) tplData {
+	return tplData{
+		Payload: payload,
+	}
+}
+
 // executeTemplate expects to be the final action in an http.Handler
 func executeTemplate(
 	rw http.ResponseWriter, r *http.Request,
 	tpl *template.Template, payload interface{},
 ) {
 
-	tplData := tplData{
-		Payload: payload,
-	}
+	tplData := newTPLData(r, payload)
 
 	if err := tpl.Execute(rw, tplData); err != nil {
 		apiutil.InternalServerError(
@@ -164,7 +172,10 @@ func (a *api) renderDumbTplHandler(tplName string) http.Handler {
 	tpl := a.mustParseBasedTpl(tplName)
 
 	return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
-		if err := tpl.Execute(rw, nil); err != nil {
+
+		tplData := newTPLData(r, nil)
+
+		if err := tpl.Execute(rw, tplData); err != nil {
 			apiutil.InternalServerError(
 				rw, r, fmt.Errorf("rendering %q: %w", tplName, err),
 			)
diff --git a/src/http/tpl/follow.html b/src/http/tpl/follow.html
index 132706b..88fee46 100644
--- a/src/http/tpl/follow.html
+++ b/src/http/tpl/follow.html
@@ -145,6 +145,8 @@ emailSubscribe.onclick = async () => {
   </li>
 </ul>
 
+{{ template "gemini-cta.html" . }}
+
 {{ end }}
 
 {{ template "base.html" . }}
diff --git a/src/http/tpl/gemini-cta.html b/src/http/tpl/gemini-cta.html
new file mode 100644
index 0000000..06e3a22
--- /dev/null
+++ b/src/http/tpl/gemini-cta.html
@@ -0,0 +1,12 @@
+<hr/>
+
+<p>
+  This site can also be accessed via the gemini protocol:
+  <a href="{{ BlogGeminiURL "/" | SafeURL }}">
+    {{ BlogGeminiURL "/" }}
+  </a>
+</p>
+<p>
+  <a href="{{ PostURL "gemspace-tour" }}">What is gemini?</a>
+</p>
+
diff --git a/src/http/tpl/index.html b/src/http/tpl/index.html
index fdaf43f..0e5b58e 100644
--- a/src/http/tpl/index.html
+++ b/src/http/tpl/index.html
@@ -50,6 +50,8 @@
     <li><a href="https://yamakan.place/palestine/#">Radio alHara</a> is another great internet radio station.</li>
   </ul>
 
+  {{ template "gemini-cta.html" . }}
+
 {{ end }}
 
 {{ template "base.html" . }}
diff --git a/src/http/tpl/post.html b/src/http/tpl/post.html
index efef203..db69302 100644
--- a/src/http/tpl/post.html
+++ b/src/http/tpl/post.html
@@ -38,6 +38,8 @@
 </em></p>
 {{ end }}
 
+{{ template "gemini-cta.html" . }}
+
 {{ end }}
 
 {{ template "base.html" . }}
diff --git a/src/http/tpl/posts.html b/src/http/tpl/posts.html
index e6d226b..0701459 100644
--- a/src/http/tpl/posts.html
+++ b/src/http/tpl/posts.html
@@ -30,6 +30,8 @@
   </p>
   {{ end }}
 
+  {{ template "gemini-cta.html" . }}
+
 {{ end }}
 
 {{ template "base.html" . }}