/*
Copyright 2016 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 storage

import (
	"k8s.io/apimachinery/pkg/runtime/schema"
)

// APIResourceConfigSource is the interface to determine which groups and versions are enabled
type APIResourceConfigSource interface {
	VersionEnabled(version schema.GroupVersion) bool
	AnyVersionForGroupEnabled(group string) bool
}

var _ APIResourceConfigSource = &ResourceConfig{}

type ResourceConfig struct {
	GroupVersionConfigs map[schema.GroupVersion]bool
}

func NewResourceConfig() *ResourceConfig {
	return &ResourceConfig{GroupVersionConfigs: map[schema.GroupVersion]bool{}}
}

func (o *ResourceConfig) DisableAll() {
	for k := range o.GroupVersionConfigs {
		o.GroupVersionConfigs[k] = false
	}
}

func (o *ResourceConfig) EnableAll() {
	for k := range o.GroupVersionConfigs {
		o.GroupVersionConfigs[k] = true
	}
}

// DisableVersions disables the versions entirely.
func (o *ResourceConfig) DisableVersions(versions ...schema.GroupVersion) {
	for _, version := range versions {
		o.GroupVersionConfigs[version] = false
	}
}

func (o *ResourceConfig) EnableVersions(versions ...schema.GroupVersion) {
	for _, version := range versions {
		o.GroupVersionConfigs[version] = true
	}
}

func (o *ResourceConfig) VersionEnabled(version schema.GroupVersion) bool {
	enabled, _ := o.GroupVersionConfigs[version]
	if enabled {
		return true
	}

	return false
}

func (o *ResourceConfig) AnyVersionForGroupEnabled(group string) bool {
	for version := range o.GroupVersionConfigs {
		if version.Group == group {
			if o.VersionEnabled(version) {
				return true
			}
		}
	}

	return false
}