feat: template system

moul · Nov 26, 2019 · bded3c9 · bded3c9
1 parent d324fc2
commit bded3c9
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Showing 3 changed files with 36 additions and 2 deletions.
diff --git a/internal/dvserver/pages.go b/internal/dvserver/pages.go
@@ -0,0 +1,32 @@
+package dvserver
+
+import (
+	"fmt"
+	"html/template"
+	"net/http"
+
+	packr "github.com/gobuffalo/packr/v2"
+)
+
+func homepage(box *packr.Box, opts Opts) func(w http.ResponseWriter, r *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		// performance can be improved by computing the template only once, but it makes development harder
+		content, err := box.FindString("index.html")
+		if err != nil {
+			http.Error(w, fmt.Sprintf("500: %+v", err), 500)
+			return
+		}
+
+		tmpl, err := template.New("home").Parse(content)
+		if err != nil {
+			http.Error(w, fmt.Sprintf("500: %+v", err), 500)
+			return
+		}
+
+		data := opts
+		err = tmpl.Execute(w, data)
+		if err != nil {
+			http.Error(w, fmt.Sprintf("500: %+v", err), 500)
+		}
+	}
+}
diff --git a/internal/dvserver/server.go b/internal/dvserver/server.go
@@ -207,6 +207,9 @@ func New(ctx context.Context, h *cayley.Handle, schema *schema.Config, opts Opts
 		box := packr.New("web", "../../web")
 		chiutil.FileServer(r, "/", box)
 
+		// pages
+		r.Get("/", homepage(box, opts))
+
 		http.DefaultServeMux = http.NewServeMux() // disables default handlers registere by importing net/http/pprof for security reasons
 		listener, err := net.Listen("tcp", opts.HTTPBind)
 		if err != nil {

diff --git a/web/index.html b/web/index.html
@@ -2,7 +2,7 @@
 <html lang="en">
   <head>
     <meta charset="utf-8" />
-    <title>DepViz Web</title>
+    <title>{{.Realm}}</title>
     <link href="https://fonts.googleapis.com/css?family=Open+Sans:400,600,700&display=swap" rel="stylesheet" />
     <link rel="stylesheet" type="text/css" href="style.css" />
   </head>
@@ -37,7 +37,6 @@
       <input type="submit" id="submit" value="generate" />
     </form>
     <div id="cy"></div>
-
     <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape/3.10.2/cytoscape.min.js" integrity="sha256-6h61EhH/gL/t32vHghM/70U5k4hiB8XMnMQ2lCYV0k0=" crossorigin="anonymous"></script>
     <script src="https://unpkg.com/cytoscape-node-html-label@1.1.5/dist/cytoscape-node-html-label.min.js"></script>