/*
Copyright 2020 The Kubernetes Authors.

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 webhook

import (
	"path/filepath"

	"sigs.k8s.io/kubebuilder/v4/pkg/machinery"
)

var _ machinery.Template = &Service{}

// Service scaffolds a file that defines the webhook service
type Service struct {
	machinery.TemplateMixin
	machinery.ProjectNameMixin
}

// SetTemplateDefaults implements machinery.Template
func (f *Service) SetTemplateDefaults() error {
	if f.Path == "" {
		f.Path = filepath.Join("config", "webhook", "service.yaml")
	}

	f.TemplateBody = serviceTemplate

	// If file exists (ex. because a webhook was already created), skip creation.
	f.IfExistsAction = machinery.SkipFile

	return nil
}

const serviceTemplate = `apiVersion: v1
kind: Service
metadata:
  labels:
    app.kubernetes.io/name: {{ .ProjectName }}
    app.kubernetes.io/managed-by: kustomize
  name: webhook-service
  namespace: system
spec:
  ports:
    - port: 443
      protocol: TCP
      targetPort: 9443
  selector:
    control-plane: controller-manager
    app.kubernetes.io/name: {{ .ProjectName }}
`
