//go:build !linux
// +build !linux

/*
Copyright 2017 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.
*/

// Dummy implementation. Real one should be built on linux.

package kubemark

import (
	apiv1 "k8s.io/api/core/v1"
	"k8s.io/apimachinery/pkg/api/resource"
	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider"
	"k8s.io/autoscaler/cluster-autoscaler/config"
	"k8s.io/autoscaler/cluster-autoscaler/utils/errors"
	"k8s.io/autoscaler/cluster-autoscaler/utils/gpu"
	klog "k8s.io/klog/v2"
)

const (
	// GPULabel is the label added to nodes with GPU resource.
	GPULabel = "cloud.google.com/gke-accelerator"
)

var (
	availableGPUTypes = map[string]struct{}{
		"nvidia-tesla-k80":  {},
		"nvidia-tesla-p100": {},
		"nvidia-tesla-v100": {},
	}
)

// KubemarkCloudProvider implements CloudProvider interface.
type KubemarkCloudProvider struct{}

// BuildKubemarkCloudProvider builds a CloudProvider for kubemark. Builds
// node groups from passed in specs.
func BuildKubemarkCloudProvider(kubemarkController interface{}, specs []string, resourceLimiter *cloudprovider.ResourceLimiter) (*KubemarkCloudProvider, error) {
	return nil, cloudprovider.ErrNotImplemented
}

// Name returns name of the cloud provider.
func (kubemark *KubemarkCloudProvider) Name() string { return "" }

// GPULabel returns the label added to nodes with GPU resource.
func (kubemark *KubemarkCloudProvider) GPULabel() string {
	return GPULabel
}

// GetAvailableGPUTypes return all available GPU types cloud provider supports
func (kubemark *KubemarkCloudProvider) GetAvailableGPUTypes() map[string]struct{} {
	return availableGPUTypes
}

// GetNodeGpuConfig returns the label, type and resource name for the GPU added to node. If node doesn't have
// any GPUs, it returns nil.
func (kubemark *KubemarkCloudProvider) GetNodeGpuConfig(node *apiv1.Node) *cloudprovider.GpuConfig {
	return gpu.GetNodeGPUFromCloudProvider(kubemark, node)
}

// NodeGroups returns all node groups configured for this cloud provider.
func (kubemark *KubemarkCloudProvider) NodeGroups() []cloudprovider.NodeGroup {
	return []cloudprovider.NodeGroup{}
}

// Pricing returns pricing model for this cloud provider or error if not available.
func (kubemark *KubemarkCloudProvider) Pricing() (cloudprovider.PricingModel, errors.AutoscalerError) {
	return nil, cloudprovider.ErrNotImplemented
}

// NodeGroupForNode returns the node group for the given node.
func (kubemark *KubemarkCloudProvider) NodeGroupForNode(node *apiv1.Node) (cloudprovider.NodeGroup, error) {
	return nil, cloudprovider.ErrNotImplemented
}

// HasInstance returns whether a given node has a corresponding instance in this cloud provider
func (kubemark *KubemarkCloudProvider) HasInstance(node *apiv1.Node) (bool, error) {
	return true, cloudprovider.ErrNotImplemented
}

// GetAvailableMachineTypes get all machine types that can be requested from the cloud provider.
// Implementation optional.
func (kubemark *KubemarkCloudProvider) GetAvailableMachineTypes() ([]string, error) {
	return []string{}, cloudprovider.ErrNotImplemented
}

// NewNodeGroup builds a theoretical node group based on the node definition provided.
func (kubemark *KubemarkCloudProvider) NewNodeGroup(machineType string, labels map[string]string, systemLabels map[string]string,
	taints []apiv1.Taint,
	extraResources map[string]resource.Quantity) (cloudprovider.NodeGroup, error) {
	return nil, cloudprovider.ErrNotImplemented
}

// GetResourceLimiter returns struct containing limits (max, min) for resources (cores, memory etc.).
func (kubemark *KubemarkCloudProvider) GetResourceLimiter() (*cloudprovider.ResourceLimiter, error) {
	return nil, cloudprovider.ErrNotImplemented
}

// Refresh is called before every main loop and can be used to dynamically update cloud provider state.
// In particular the list of node groups returned by NodeGroups can change as a result of CloudProvider.Refresh().
func (kubemark *KubemarkCloudProvider) Refresh() error {
	return cloudprovider.ErrNotImplemented
}

// Cleanup cleans up all resources before the cloud provider is removed
func (kubemark *KubemarkCloudProvider) Cleanup() error {
	return cloudprovider.ErrNotImplemented
}

// BuildKubemark builds Kubemark cloud provider.
func BuildKubemark(opts config.AutoscalingOptions, do cloudprovider.NodeGroupDiscoveryOptions, rl *cloudprovider.ResourceLimiter) cloudprovider.CloudProvider {
	klog.Fatal("Failed to create Kubemark cloud provider: only supported on Linux")
	return nil
}
