Add first basic POC

polyculeconnect/controller/ui/static.go

@@ -0,0 +1,67 @@
+package ui
+
+import (
+	"bytes"
+	"fmt"
+	"html/template"
+	"io"
+	"net/http"
+	"path/filepath"
+
+	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/helpers"
+	"github.com/sirupsen/logrus"
+)
+
+const StaticRoute = "/static/"
+
+type StaticController struct {
+}
+
+func (sc *StaticController) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	fs := http.FileServer(http.Dir("./static"))
+	http.StripPrefix(StaticRoute, fs).ServeHTTP(w, r)
+}
+
+type IndexController struct {
+	l *logrus.Logger
+}
+
+func NewIndexController(l *logrus.Logger) *IndexController {
+	return &IndexController{
+		l: l,
+	}
+}
+
+func (ic IndexController) serveUI(w http.ResponseWriter, r *http.Request) (int, int, error) {
+	lp := filepath.Join("templates", "index.html")
+	tmpl, err := template.ParseFiles(lp)
+	if err != nil {
+		return http.StatusInternalServerError, -1, fmt.Errorf("failed to init template: %w", err)
+	}
+	buf := new(bytes.Buffer)
+
+	if err := tmpl.Execute(buf, nil); err != nil {
+		return http.StatusInternalServerError, -1, fmt.Errorf("failed to execute template: %w", err)
+	}
+	n, err := io.Copy(w, buf)
+	if err != nil {
+		return http.StatusInternalServerError, int(n), fmt.Errorf("failed to write response; %w", err)
+	}
+
+	return http.StatusOK, int(n), nil
+}
+
+func (ic *IndexController) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	if r.RequestURI != "/" {
+		ic.l.Errorf("Unhandled route %q", r.RequestURI)
+		helpers.HandleResponse(w, r, http.StatusNotFound, nil, ic.l)
+		return
+	}
+	returncode, contentLength, err := ic.serveUI(w, r)
+	if err != nil {
+		ic.l.Errorf("Error serving UI: %s", err.Error())
+		helpers.HandleResponse(w, r, returncode, nil, ic.l)
+	} else {
+		helpers.AddToContext(r, returncode, contentLength)
+	}
+}