Add internal/server/user/mux/handlerbuilder{,_test}.go

Co-authored-by: Roberto Abdelkader Martínez Pérez <robertomartinezp@gmail.com>

internal/server/user/mux/handlerbuilder.go

@@ -0,0 +1,40 @@
+package mux
+
+import (
+	"log"
+	"net/http"
+
+	"github.com/google/uuid"
+
+	"github.com/BBVA/kapow/internal/server/data"
+	"github.com/BBVA/kapow/internal/server/model"
+	"github.com/BBVA/kapow/internal/server/user/spawn"
+)
+
+var spawner = spawn.Spawn
+var idGenerator = uuid.NewUUID
+
+func handlerBuilder(route model.Route) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		id, err := idGenerator()
+		if err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+
+		h := &model.Handler{
+			ID:      id.String(),
+			Route:   route,
+			Request: r,
+			Writer:  w,
+		}
+
+		data.Handlers.Add(h)
+		defer data.Handlers.Remove(h.ID)
+
+		err = spawner(h, nil)
+		if err != nil {
+			log.Println(err)
+		}
+	})
+}