/*
Copyright 2015 The Kubernetes Authors.
Copyright 2020 Authors of Arktos - file modified.

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 testing

import (
	"context"
	"fmt"
	"io"
	"time"

	"github.com/stretchr/testify/mock"
	"k8s.io/api/core/v1"
	"k8s.io/apimachinery/pkg/types"
	"k8s.io/client-go/tools/remotecommand"
	"k8s.io/client-go/util/flowcontrol"
	runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1alpha2"
	. "k8s.io/kubernetes/pkg/kubelet/container"
	"k8s.io/kubernetes/pkg/volume"
)

type Mock struct {
	mock.Mock
}

var _ Runtime = new(Mock)

func (r *Mock) Start() error {
	args := r.Called()
	return args.Error(0)
}

func (r *Mock) Type() string {
	args := r.Called()
	return args.Get(0).(string)
}

func (r *Mock) Version() (Version, error) {
	args := r.Called()
	return args.Get(0).(Version), args.Error(1)
}

func (r *Mock) APIVersion() (Version, error) {
	args := r.Called()
	return args.Get(0).(Version), args.Error(1)
}

func (r *Mock) Status() (*RuntimeStatus, error) {
	args := r.Called()
	return args.Get(0).(*RuntimeStatus), args.Error(0)
}

func (r *Mock) GetPods(all bool) ([]*Pod, error) {
	args := r.Called(all)
	return args.Get(0).([]*Pod), args.Error(1)
}

func (r *Mock) SyncPod(pod *v1.Pod, status *PodStatus, secrets []v1.Secret, backOff *flowcontrol.Backoff) PodSyncResult {
	args := r.Called(pod, status, secrets, backOff)
	return args.Get(0).(PodSyncResult)
}

func (r *Mock) KillPod(pod *v1.Pod, runningPod Pod, gracePeriodOverride *int64) error {
	args := r.Called(pod, runningPod, gracePeriodOverride)
	return args.Error(0)
}

func (r *Mock) RunContainerInPod(container v1.Container, pod *v1.Pod, volumeMap map[string]volume.VolumePlugin) error {
	args := r.Called(pod, pod, volumeMap)
	return args.Error(0)
}

func (r *Mock) KillContainerInPod(container v1.Container, pod *v1.Pod) error {
	args := r.Called(pod, pod)
	return args.Error(0)
}

func (r *Mock) GetPodStatus(uid types.UID, name, namespace, tenant string) (*PodStatus, error) {
	args := r.Called(uid, name, namespace, tenant)
	return args.Get(0).(*PodStatus), args.Error(1)
}

func (r *Mock) ExecInContainer(containerID ContainerID, cmd []string, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool, resize <-chan remotecommand.TerminalSize, timeout time.Duration) error {
	args := r.Called(containerID, cmd, stdin, stdout, stderr, tty)
	return args.Error(0)
}

func (r *Mock) AttachContainer(containerID ContainerID, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool, resize <-chan remotecommand.TerminalSize) error {
	args := r.Called(containerID, stdin, stdout, stderr, tty)
	return args.Error(0)
}

func (r *Mock) GetContainerLogs(_ context.Context, pod *v1.Pod, containerID ContainerID, logOptions *v1.PodLogOptions, stdout, stderr io.Writer) (err error) {
	args := r.Called(pod, containerID, logOptions, stdout, stderr)
	return args.Error(0)
}

func (r *Mock) PullImage(image ImageSpec, pullSecrets []v1.Secret, podSandboxConfig *runtimeapi.PodSandboxConfig) (string, error) {
	args := r.Called(image, pullSecrets)
	return image.Image, args.Error(0)
}

func (r *Mock) GetImageRef(image ImageSpec) (string, error) {
	args := r.Called(image)
	return args.Get(0).(string), args.Error(1)
}

func (r *Mock) ListImages() ([]Image, error) {
	args := r.Called()
	return args.Get(0).([]Image), args.Error(1)
}

func (r *Mock) RemoveImage(image ImageSpec) error {
	args := r.Called(image)
	return args.Error(0)
}

func (r *Mock) PortForward(pod *Pod, port uint16, stream io.ReadWriteCloser) error {
	args := r.Called(pod, port, stream)
	return args.Error(0)
}

func (r *Mock) GarbageCollect(gcPolicy ContainerGCPolicy, ready bool, evictNonDeletedPods bool) error {
	args := r.Called(gcPolicy, ready, evictNonDeletedPods)
	return args.Error(0)
}

func (r *Mock) DeleteContainer(containerID ContainerID) error {
	args := r.Called(containerID)
	return args.Error(0)
}
func (r *Mock) RebootVM(pod *v1.Pod, vmName string) error {
	args := r.Called(fmt.Sprintf("%s-%s", pod.Name, vmName))
	return args.Error(0)
}
func (r *Mock) CreateSnapshot(pod *v1.Pod, vmName string, snapshotID string) error {
	args := r.Called(fmt.Sprintf("%s-%s-%s", pod.Name, vmName, snapshotID))
	return args.Error(0)
}
func (r *Mock) RestoreToSnapshot(pod *v1.Pod, vmName string, snapshotID string) error {
	args := r.Called(fmt.Sprintf("%s-%s-%s", pod.Name, vmName, snapshotID))
	return args.Error(0)
}
func (r *Mock) ImageStats() (*ImageStats, error) {
	args := r.Called()
	return args.Get(0).(*ImageStats), args.Error(1)
}

// UpdatePodCIDR fulfills the cri interface.
func (r *Mock) UpdatePodCIDR(c string) error {
	return nil
}

// VM service interface methods
func (r *Mock) AttachNetworkInterface(pod *v1.Pod, vmName string, nic *v1.Nic) error {
	args := r.Called(fmt.Sprintf("%s-%s-%s", pod.Name, vmName, nic.Name))
	return args.Error(0)
}

func (r *Mock) DetachNetworkInterface(pod *v1.Pod, vmName string, nic *v1.Nic) error {
	args := r.Called(fmt.Sprintf("%s-%s-%s", pod.Name, vmName, nic.Name))
	return args.Error(0)
}

func (r *Mock) ListNetworkInterfaces(pod *v1.Pod, vmName string) ([]*v1.Nic, error) {
	args := r.Called(fmt.Sprintf("%s-%s", pod.Name, vmName))
	return []*v1.Nic{{"testNic", "testsubnet", "fakePortId", "fakeIP", "test", false}}, args.Error(0)
}
