/*
Copyright © contributors to CloudNativePG, established as
CloudNativePG a Series of LF Projects, LLC.

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.

SPDX-License-Identifier: Apache-2.0
*/

package common

import (
	"context"

	cnpgv1 "github.com/cloudnative-pg/cloudnative-pg/api/v1"
	"github.com/cloudnative-pg/machinery/pkg/log"
	"github.com/spf13/viper"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/apimachinery/pkg/runtime/schema"
	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
	clientgoscheme "k8s.io/client-go/kubernetes/scheme"

	barmancloudv1 "github.com/cloudnative-pg/plugin-barman-cloud/api/v1"
)

// GenerateScheme creates a runtime.Scheme object with all the
// definition needed to support the sidecar. This allows
// the plugin to be used in every CNPG-based operator.
func GenerateScheme(ctx context.Context) *runtime.Scheme {
	result := runtime.NewScheme()

	barmancloudv1.AddKnownTypes(result)
	utilruntime.Must(clientgoscheme.AddToScheme(result))

	cnpgGroup := viper.GetString("custom-cnpg-group")
	cnpgVersion := viper.GetString("custom-cnpg-version")
	if len(cnpgGroup) == 0 {
		cnpgGroup = cnpgv1.SchemeGroupVersion.Group
	}
	if len(cnpgVersion) == 0 {
		cnpgVersion = cnpgv1.SchemeGroupVersion.Version
	}

	// Proceed with custom registration of the CNPG scheme
	schemeGroupVersion := schema.GroupVersion{Group: cnpgGroup, Version: cnpgVersion}
	result.AddKnownTypes(schemeGroupVersion,
		&cnpgv1.Cluster{}, &cnpgv1.ClusterList{},
		&cnpgv1.Backup{}, &cnpgv1.BackupList{},
		&cnpgv1.ScheduledBackup{}, &cnpgv1.ScheduledBackupList{},
	)
	metav1.AddToGroupVersion(result, schemeGroupVersion)

	schemeLog := log.FromContext(ctx)
	schemeLog.Info("CNPG types registration", "schemeGroupVersion", schemeGroupVersion)

	return result
}