Extract page layout

web/server.go

@@ -1,7 +1,9 @@
 package web
 
 import (
+	"html/template"
 	"net/http"
+	"pool-stats/helpers"
 
 	"fmt"
 
@@ -9,14 +11,27 @@ import (
 )
 
 type WebServer struct {
-	db   *clover.DB
-	port int
+	db        *clover.DB
+	port      int
+	templates *template.Template
 }
 
 func NewWebServer(db *clover.DB, port int) *WebServer {
+	templates := template.New("base").Funcs(template.FuncMap{
+		"add":              func(a, b int) int { return a + b },
+		"sub":              func(a, b int) int { return a - b },
+		"humanDiff":        helpers.HumanDiff,
+		"formatCreateDate": helpers.FormatCreateDate,
+	})
+
+	templates = template.Must(templates.ParseFiles(
+		"templates/layout.html",
+	))
+
 	return &WebServer{
-		db:   db,
-		port: port,
+		db:        db,
+		port:      port,
+		templates: templates,
 	}
 }