// +build windows

/*
Copyright 2015 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 dockertools

import (
	"os"

	dockertypes "github.com/docker/engine-api/types"
	dockercontainer "github.com/docker/engine-api/types/container"

	"k8s.io/kubernetes/pkg/api/v1"
	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
)

// These two functions are OS specific (for now at least)
func updateHostConfig(hc *dockercontainer.HostConfig, opts *kubecontainer.RunContainerOptions) {
	// There is no /etc/resolv.conf in Windows, DNS and DNSSearch options would have to be passed to Docker runtime instead
	hc.DNS = opts.DNS
	hc.DNSSearch = opts.DNSSearch

	// MemorySwap == -1 is not currently supported in Docker 1.14 on Windows
	// https://github.com/docker/docker/blob/master/daemon/daemon_windows.go#L175
	hc.Resources.MemorySwap = 0
}

func DefaultMemorySwap() int64 {
	return 0
}

func getContainerIP(container *dockertypes.ContainerJSON) string {
	if container.NetworkSettings != nil {
		for _, network := range container.NetworkSettings.Networks {
			if network.IPAddress != "" {
				return network.IPAddress
			}
		}
	}
	return ""
}

func getNetworkingMode() string {
	// Allow override via env variable. Otherwise, use a default "kubenet" network
	netMode := os.Getenv("CONTAINER_NETWORK")
	if netMode == "" {
		netMode = "kubenet"
	}
	return netMode
}

// Infrastructure containers are not supported on Windows. For this reason, we
// make sure to not grab the infra container's IP for the pod.
func containerProvidesPodIP(containerName string) bool {
	return containerName != PodInfraContainerName
}

// All containers in Windows need networking setup/teardown
func containerIsNetworked(containerName string) bool {
	return true
}

// Returns nil as both Seccomp and AppArmor security options are not valid on Windows
func (dm *DockerManager) getSecurityOpts(pod *v1.Pod, ctrName string) ([]dockerOpt, error) {
	return nil, nil
}