Added notification manager

notification/pkg.go

@@ -0,0 +1,61 @@
+package notification
+
+import (
+	// External
+	werr "git.gibonuddevalla.se/go/wrappederror"
+
+	// Standard
+	"log/slog"
+	"slices"
+)
+
+type Service interface {
+	SetLogger(*slog.Logger)
+	GetPrio() int
+	GetType() string
+	Send(string, []byte) error
+}
+
+type Manager struct {
+	services []Service
+	logger   *slog.Logger
+}
+
+func NewManager(logger *slog.Logger) (nm Manager) {
+	nm.services = []Service{}
+	nm.logger = logger
+	return
+}
+
+func (nm *Manager) AddService(service Service) {
+	nm.services = append(nm.services, service)
+	slices.SortFunc(nm.services, func(a, b Service) int {
+		if a.GetPrio() < b.GetPrio() {
+			return -1
+		}
+		if a.GetPrio() > b.GetPrio() {
+			return 1
+		}
+		return 0
+	})
+}
+
+func (nm *Manager) Send(uuid string, msg []byte) (err error) {
+	for _, service := range nm.services {
+		nm.logger.Info("notification", "service", service.GetType(), "prio", service.GetPrio())
+		if err = service.Send(uuid, msg); err == nil {
+			break
+		} else {
+			data := struct {
+				UUID string
+				Msg  []byte
+			}{
+				uuid,
+				msg,
+			}
+			werr.Wrap(err).WithData(data).Log()
+		}
+	}
+
+	return
+}