/*
Copyright (c) 2021 VMware, Inc. All Rights Reserved.

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 vslm

import (
	"context"
	"os"
	"testing"

	"github.com/dougm/pretty"

	"github.com/vmware/govmomi"
	"github.com/vmware/govmomi/cns"
	"github.com/vmware/govmomi/vim25/soap"
	"github.com/vmware/govmomi/vim25/types"

	cnstypes "github.com/vmware/govmomi/cns/types"
)

func TestClient(t *testing.T) {
	url := os.Getenv("VSLM_VC_URL")            // export VC_URL='https://administrator@vsphere.local:Admin!23@10.184.69.227/sdk'
	datacenter := os.Getenv("VSLM_DATACENTER") // export DATACENTER='test-vpx-1614463083-15492-hostpool'
	volumePath := os.Getenv("VOLUME_PATH")     // export VOLUME_PATH='https://10.186.43.166/folder/27b74660-98cd-3fe5-514f-02009d24d7ab/vm-1.vmdk?dcPath=datacenter&dsName=vsanDatastore'
	if url == "" || datacenter == "" || volumePath == "" {
		t.Skip("VC_URL or DATACENTER is not set")
	}

	u, err := soap.ParseURL(url)
	if err != nil {
		t.Fatal(err)
	}
	ctx := context.Background()

	c, err := govmomi.NewClient(ctx, u, true)
	if err != nil {
		t.Fatal(err)
	}

	vslmClient, err := NewClient(ctx, c.Client)
	if err != nil {
		t.Fatal(err)
	}

	globalObjectManager := NewGlobalObjectManager(vslmClient)
	vStorageObject, err := globalObjectManager.RegisterDisk(ctx, volumePath, "volume-name1")
	if err != nil {
		t.Fatal(err)
	}
	t.Logf("Successfully registered disk with path %s as FCD with storage object id %s", volumePath, vStorageObject.Config.Id.Id)

	containerCluster := cnstypes.CnsContainerCluster{
		ClusterType:         string(cnstypes.CnsClusterTypeKubernetes),
		ClusterId:           "demo-cluster-id",
		VSphereUser:         "Administrator@vsphere.local",
		ClusterFlavor:       string(cnstypes.CnsClusterFlavorVanilla),
		ClusterDistribution: "KUBERNETES",
	}

	// Test CreateVolume API
	var cnsVolumeCreateSpecList []cnstypes.CnsVolumeCreateSpec
	cnsVolumeCreateSpec := cnstypes.CnsVolumeCreateSpec{
		Name:       "pvc-abc123",
		VolumeType: string(cnstypes.CnsVolumeTypeBlock),
		Metadata: cnstypes.CnsVolumeMetadata{
			ContainerCluster: containerCluster,
		},
		BackingObjectDetails: &cnstypes.CnsBlockBackingDetails{
			CnsBackingObjectDetails: cnstypes.CnsBackingObjectDetails{
				CapacityInMb: 5120,
			},
			BackingDiskId: vStorageObject.Config.Id.Id,
		},
	}
	c.UseServiceVersion("vsan")
	cnsClient, err := cns.NewClient(ctx, c.Client)
	if err != nil {
		t.Fatal(err)
	}
	cnsVolumeCreateSpecList = append(cnsVolumeCreateSpecList, cnsVolumeCreateSpec)
	t.Logf("Creating volume using the spec: %+v", pretty.Sprint(cnsVolumeCreateSpec))
	createTask, err := cnsClient.CreateVolume(ctx, cnsVolumeCreateSpecList)
	if err != nil {
		t.Errorf("Failed to create volume. Error: %+v \n", err)
		t.Fatal(err)
	}
	createTaskInfo, err := cns.GetTaskInfo(ctx, createTask)
	if err != nil {
		t.Errorf("Failed to create volume. Error: %+v \n", err)
		t.Fatal(err)
	}
	createTaskResult, err := cns.GetTaskResult(ctx, createTaskInfo)
	if err != nil {
		t.Errorf("Failed to create volume. Error: %+v \n", err)
		t.Fatal(err)
	}
	if createTaskResult == nil {
		t.Fatalf("Empty create task results")
		t.FailNow()
	}
	createVolumeOperationRes := createTaskResult.GetCnsVolumeOperationResult()
	if createVolumeOperationRes.Fault != nil {
		t.Fatalf("Failed to create volume: fault=%+v", createVolumeOperationRes.Fault)
	}
	volumeId := createVolumeOperationRes.VolumeId.Id
	volumeCreateResult := (createTaskResult).(*cnstypes.CnsVolumeCreateResult)
	t.Logf("volumeCreateResult %+v", volumeCreateResult)
	t.Logf("Volume created sucessfully. volumeId: %s", volumeId)

	err = globalObjectManager.SetControlFlags(ctx, types.ID{Id: volumeId}, []string{
		string(types.VslmVStorageObjectControlFlagKeepAfterDeleteVm)})
	if err != nil {
		t.Fatal(err)
	}
	t.Logf("Control flag: FCD_KEEP_AFTER_DELETE_VM set for the volumeId: %s", volumeId)
	err = globalObjectManager.ClearControlFlags(ctx, types.ID{Id: volumeId})
	if err != nil {
		t.Fatal(err)
	}
	t.Logf("Control flags removed the volumeId: %s", volumeId)
}
