/*
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.
*/

package azuredisk

import (
	"context"

	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"

	"github.com/container-storage-interface/spec/lib/go/csi"

	wrappers "github.com/golang/protobuf/ptypes/wrappers"
)

// GetPluginInfo return the version and name of the plugin
func (f *Driver) GetPluginInfo(ctx context.Context, req *csi.GetPluginInfoRequest) (*csi.GetPluginInfoResponse, error) {
	if f.Name == "" {
		return nil, status.Error(codes.Unavailable, "Driver name not configured")
	}

	if f.Version == "" {
		return nil, status.Error(codes.Unavailable, "Driver is missing version")
	}

	return &csi.GetPluginInfoResponse{
		Name:          f.Name,
		VendorVersion: f.Version,
	}, nil
}

// Probe check whether the plugin is running or not.
// This method does not need to return anything.
// Currently the spec does not dictate what you should return either.
// Hence, return an empty response
func (f *Driver) Probe(ctx context.Context, req *csi.ProbeRequest) (*csi.ProbeResponse, error) {
	return &csi.ProbeResponse{Ready: &wrappers.BoolValue{Value: true}}, nil
}

// GetPluginCapabilities returns the capabilities of the plugin
func (f *Driver) GetPluginCapabilities(ctx context.Context, req *csi.GetPluginCapabilitiesRequest) (*csi.GetPluginCapabilitiesResponse, error) {
	return &csi.GetPluginCapabilitiesResponse{
		Capabilities: []*csi.PluginCapability{
			{
				Type: &csi.PluginCapability_Service_{
					Service: &csi.PluginCapability_Service{
						Type: csi.PluginCapability_Service_CONTROLLER_SERVICE,
					},
				},
			},
			{
				Type: &csi.PluginCapability_Service_{
					Service: &csi.PluginCapability_Service{
						Type: csi.PluginCapability_Service_VOLUME_ACCESSIBILITY_CONSTRAINTS,
					},
				},
			},
		},
	}, nil
}
