fix: pgsql user waiter

stackit/internal/wait/postgresflexalpha/wait.go

@@ -47,6 +47,14 @@ type APIClientUserInterface interface {
 		*postgresflex.GetUserResponse,
 		error,
 	)
+
+	GetDatabaseRequestExecute(
+		ctx context.Context,
+		projectId string,
+		region string,
+		instanceId string,
+		databaseId int32,
+	) (*postgresflex.GetDatabaseResponse, error)
 }
 
 // CreateInstanceWaitHandler will wait for instance creation
@@ -236,3 +244,31 @@ func GetUserByIdWaitHandler(
 	)
 	return handler
 }
+
+// GetDatabaseByIdWaitHandler will wait for instance creation
+func GetDatabaseByIdWaitHandler(
+	ctx context.Context,
+	a APIClientUserInterface,
+	projectId, instanceId, region string,
+	databaseId int64,
+) *wait.AsyncActionHandler[postgresflex.GetDatabaseResponse] {
+	handler := wait.New(
+		func() (waitFinished bool, response *postgresflex.GetDatabaseResponse, err error) {
+			dbId32 := int32(databaseId)
+			s, err := a.GetDatabaseRequestExecute(ctx, projectId, region, instanceId, dbId32)
+			if err != nil {
+				var oapiErr *oapierror.GenericOpenAPIError
+				ok := errors.As(err, &oapiErr)
+				if !ok {
+					return false, nil, fmt.Errorf("could not convert error to oapierror.GenericOpenAPIError")
+				}
+				if oapiErr.StatusCode != http.StatusNotFound {
+					return false, nil, err
+				}
+				return false, nil, nil
+			}
+			return true, s, nil
+		},
+	)
+	return handler
+}