// Copyright (c) 2019 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package v1alpha1

import (
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/runtime"
)

func addDefaultingFuncs(scheme *runtime.Scheme) error {
	return RegisterDefaults(scheme)
}

// SetDefaults_OpenIDConnectPreset sets default values for OpenIDConnectPreset objects.
func SetDefaults_OpenIDConnectPreset(obj *OpenIDConnectPreset) {
	if obj.Spec.ShootSelector == nil {
		obj.Spec.ShootSelector = &metav1.LabelSelector{}
	}
	setDefaultServerSpec(&obj.Spec.Server)
}

// SetDefaults_ClusterOpenIDConnectPreset sets default values for ClusterOpenIDConnectPreset objects.
func SetDefaults_ClusterOpenIDConnectPreset(obj *ClusterOpenIDConnectPreset) {
	if obj.Spec.ShootSelector == nil {
		obj.Spec.ShootSelector = &metav1.LabelSelector{}
	}

	if obj.Spec.ProjectSelector == nil {
		obj.Spec.ProjectSelector = &metav1.LabelSelector{}
	}
	setDefaultServerSpec(&obj.Spec.Server)
}

func setDefaultServerSpec(spec *KubeAPIServerOpenIDConnect) {
	if len(spec.SigningAlgs) == 0 {
		spec.SigningAlgs = []string{DefaultSignAlg}
	}

	if spec.UsernameClaim == nil {
		usernameClaim := DefaultUsernameClaim
		spec.UsernameClaim = &usernameClaim
	}
}