Print times in human-readable format

TODO

@@ -2,7 +2,7 @@
 
 ## 1.0.0
 
-[ ] *.. Print times in human-readable format.
+[x] *.. Print times in human-readable format.
 [ ] *.. Show max two departures per line per stop.
 [ ] **. Add Connexxion departures.
 [ ] **. Make the page look nice (also on mobile).

index.html

@@ -17,7 +17,7 @@
   {{ range .Departures }}
   <dl>
     <dt>{{ .RouteShortName }} | {{ .StopHeadsign }}</dt>
-    <dd><time>{{ .DepartureTime }}</time></dd>
+    <dd><time>{{ formatTime .DepartureTime }}</time></dd>
   </dl>
   {{ end }}
 </article>

server.go

@@ -4,6 +4,7 @@ import (
 	"html/template"
 	"log"
 	"net/http"
+	"time"
 )
 
 type TemplateQuay struct {
@@ -16,6 +17,12 @@ type TemplateContext struct {
 	Quays []TemplateQuay
 }
 
+func formatTime(t time.Time) string {
+	return t.Format("15:04")
+}
+
+var tplFunctions = template.FuncMap{"formatTime": formatTime}
+
 func serveHttp() {
 	http.HandleFunc("/", handleIndex)
 
@@ -40,7 +47,7 @@ func handleIndex(w http.ResponseWriter, r *http.Request) {
 		ctxt.Quays = append(ctxt.Quays, TemplateQuay{quay.Name, quay.Town, departures})
 	}
 
-	tpl := template.New("index.html")
+	tpl := template.New("index.html").Funcs(tplFunctions)
 	tpl, _ = tpl.ParseFiles("index.html")
 
 	_ = tpl.Execute(w, ctxt)