controller

controller/controller.go

@@ -0,0 +1,46 @@
+package controller
+
+import (
+	"fmt"
+	"html/template"
+	"io/fs"
+	"net/http"
+)
+
+type Controller struct {
+	tmpl map[string]*template.Template
+	http.Handler
+}
+
+// #todo: load all automatically
+func (c *Controller) LoadTemplates(fs fs.FS) {
+	c.tmpl = make(map[string]*template.Template)
+	c.tmpl["order/confirmation.html"], _ = template.ParseFS(fs, "templates/order/confirmation.html")
+	c.tmpl["new_order.html"], _ = template.ParseFS(fs, "templates/new_order.html")
+}
+
+func (c *Controller) LoadRouter(pub fs.FS) {
+	serveMux := http.NewServeMux()
+
+	serveMux.Handle("GET /", http.FileServerFS(unwrap(fs.Sub(pub, "public"))))
+	serveMux.HandleFunc("POST /", c.HandlePost)
+	serveMux.HandleFunc("GET /new_order.html", c.HandleGet)
+
+	c.Handler = serveMux
+}
+
+func (c *Controller) HandlePost(w http.ResponseWriter, r *http.Request) {
+	fmt.Println("received Post request: ", r)
+	err := r.ParseForm()
+	if err != nil {
+		_ = c.tmpl["order/confirmation.html"].Execute(w, struct{ Status any }{Status: err})
+	}
+	w.WriteHeader(http.StatusAccepted)
+	fmt.Println(r.Form)
+	_ = c.tmpl["order/confirmation.html"].Execute(w, struct{ Status any }{Status: r.Form})
+}
+
+func (c *Controller) HandleGet(w http.ResponseWriter, r *http.Request) {
+	fmt.Println("received Get request: ", r)
+	_ = c.tmpl["new_order.html"].Execute(w, nil)
+}

controller/util.go

@@ -0,0 +1,8 @@
+package controller
+
+func unwrap[T any](output T, err error) T {
+	if err != nil {
+		panic(err)
+	}
+	return output
+}