/*
Copyright 2022 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 nodeutilization

import (
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"sigs.k8s.io/descheduler/pkg/api"
)

// +k8s:deepcopy-gen=true
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

type LowNodeUtilizationArgs struct {
	metav1.TypeMeta `json:",inline"`

	UseDeviationThresholds bool                   `json:"useDeviationThresholds,omitempty"`
	Thresholds             api.ResourceThresholds `json:"thresholds"`
	TargetThresholds       api.ResourceThresholds `json:"targetThresholds"`
	NumberOfNodes          int                    `json:"numberOfNodes,omitempty"`
	MetricsUtilization     MetricsUtilization     `json:"metricsUtilization,omitempty"`

	// Naming this one differently since namespaces are still
	// considered while considering resources used by pods
	// but then filtered out before eviction
	EvictableNamespaces *api.Namespaces `json:"evictableNamespaces,omitempty"`
}

// +k8s:deepcopy-gen=true
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

type HighNodeUtilizationArgs struct {
	metav1.TypeMeta `json:",inline"`

	Thresholds         api.ResourceThresholds `json:"thresholds"`
	NumberOfNodes      int                    `json:"numberOfNodes,omitempty"`
	MetricsUtilization MetricsUtilization     `json:"metricsUtilization,omitempty"`

	// Naming this one differently since namespaces are still
	// considered while considering resources used by pods
	// but then filtered out before eviction
	EvictableNamespaces *api.Namespaces `json:"evictableNamespaces,omitempty"`
}

// MetricsUtilization allow to consume actual resource utilization from metrics
type MetricsUtilization struct {
	// metricsServer enables metrics from a kubernetes metrics server.
	// Please see https://kubernetes-sigs.github.io/metrics-server/ for more.
	MetricsServer bool `json:"metricsServer,omitempty"`
}
