added notify helpers

internal/handlers/notifications.go

@@ -0,0 +1,50 @@
+package handlers
+
+import (
+	"net/http"
+
+	"git.haelnorr.com/h/golib/hws"
+	"git.haelnorr.com/h/golib/notify"
+	"github.com/pkg/errors"
+)
+
+func notifyClient(
+	s *hws.Server,
+	r *http.Request,
+	level notify.Level,
+	title, message, details string,
+	action any,
+) error {
+	subCookie, err := r.Cookie("ws_sub_id")
+	if err != nil {
+		return errors.Wrap(err, "r.Cookie")
+	}
+	subID := notify.Target(subCookie.Value)
+	nt := notify.Notification{
+		Target:  subID,
+		Title:   title,
+		Message: message,
+		Details: details,
+		Action:  action,
+		Level:   level,
+	}
+	s.NotifySub(nt)
+	return nil
+}
+
+func notifyInternalServiceError(s *hws.Server, r *http.Request, msg string, err error) error {
+	return notifyClient(s, r, notify.LevelError, "Internal Service Error", msg,
+		SerializeErrorDetails(http.StatusInternalServerError, err), nil)
+}
+
+func notifyWarn(s *hws.Server, r *http.Request, title, msg string, action any) error {
+	return notifyClient(s, r, notify.LevelWarn, title, msg, "", action)
+}
+
+func notifyInfo(s *hws.Server, r *http.Request, title, msg string, action any) error {
+	return notifyClient(s, r, notify.LevelInfo, title, msg, "", action)
+}
+
+func notifySuccess(s *hws.Server, r *http.Request, title, msg string, action any) error {
+	return notifyClient(s, r, notify.LevelSuccess, title, msg, "", action)
+}