/*
Copyright 2019 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 topologymanager

import (
	"k8s.io/api/core/v1"
	"k8s.io/klog/v2"
	"k8s.io/kubernetes/pkg/kubelet/cm/admission"
	"k8s.io/kubernetes/pkg/kubelet/lifecycle"
)

type fakeManager struct {
	hint   *TopologyHint
	policy Policy
}

// NewFakeManager returns an instance of FakeManager
func NewFakeManager() Manager {
	klog.InfoS("NewFakeManager")
	return &fakeManager{}
}

// NewFakeManagerWithHint returns an instance of fake topology manager with specified topology hints
func NewFakeManagerWithHint(hint *TopologyHint) Manager {
	klog.InfoS("NewFakeManagerWithHint")
	return &fakeManager{
		hint:   hint,
		policy: NewNonePolicy(),
	}
}

// NewFakeManagerWithPolicy returns an instance of fake topology manager with specified policy
func NewFakeManagerWithPolicy(policy Policy) Manager {
	klog.InfoS("NewFakeManagerWithPolicy")
	return &fakeManager{
		policy: policy,
	}
}

func (m *fakeManager) GetAffinity(podUID string, containerName string) TopologyHint {
	klog.InfoS("GetAffinity", "podUID", podUID, "containerName", containerName)
	if m.hint == nil {
		return TopologyHint{}
	}

	return *m.hint
}

func (m *fakeManager) GetPolicy() Policy {
	return m.policy
}

func (m *fakeManager) AddHintProvider(h HintProvider) {
	klog.InfoS("AddHintProvider", "hintProvider", h)
}

func (m *fakeManager) AddContainer(pod *v1.Pod, container *v1.Container, containerID string) {
	klog.InfoS("AddContainer", "pod", klog.KObj(pod), "containerName", container.Name, "containerID", containerID)
}

func (m *fakeManager) RemoveContainer(containerID string) error {
	klog.InfoS("RemoveContainer", "containerID", containerID)
	return nil
}

func (m *fakeManager) Admit(attrs *lifecycle.PodAdmitAttributes) lifecycle.PodAdmitResult {
	klog.InfoS("Topology Admit Handler")
	return admission.GetPodAdmitResult(nil)
}