// Copyright 2019 Yunion
//
// 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 openstack

import (
	"fmt"

	"yunion.io/x/jsonutils"

	api "yunion.io/x/onecloud/pkg/apis/compute"
	"yunion.io/x/onecloud/pkg/cloudprovider"
)

type SNovaStorage struct {
	zone *SZone
}

func (storage *SNovaStorage) GetMetadata() *jsonutils.JSONDict {
	return nil
}

func (storage *SNovaStorage) GetId() string {
	return fmt.Sprintf("%s-%s-%s", storage.zone.region.client.cpcfg.Id, storage.zone.GetGlobalId(), storage.GetName())
}

func (storage *SNovaStorage) GetName() string {
	return api.STORAGE_OPENSTACK_NOVA
}

func (storage *SNovaStorage) GetGlobalId() string {
	return storage.GetId()
}

func (storage *SNovaStorage) IsEmulated() bool {
	return true
}

func (storage *SNovaStorage) GetIZone() cloudprovider.ICloudZone {
	return storage.zone
}

func (storage *SNovaStorage) GetIDisks() ([]cloudprovider.ICloudDisk, error) {
	return []cloudprovider.ICloudDisk{}, nil
}

func (storage *SNovaStorage) GetStorageType() string {
	return api.STORAGE_OPENSTACK_NOVA
}

func (storage *SNovaStorage) GetMediumType() string {
	return api.DISK_TYPE_ROTATE
}

func (storage *SNovaStorage) GetCapacityMB() int64 {
	return 1000000000
}

func (storage *SNovaStorage) GetStorageConf() jsonutils.JSONObject {
	conf := jsonutils.NewDict()
	return conf
}

func (storage *SNovaStorage) GetStatus() string {
	return api.STORAGE_ONLINE
}

func (storage *SNovaStorage) Refresh() error {
	// do nothing
	return nil
}

func (storage *SNovaStorage) GetEnabled() bool {
	return true
}

func (storage *SNovaStorage) GetIStoragecache() cloudprovider.ICloudStoragecache {
	return storage.zone.region.getStoragecache()
}

func (storage *SNovaStorage) CreateIDisk(name string, sizeGb int, desc string) (cloudprovider.ICloudDisk, error) {
	return nil, cloudprovider.ErrNotSupported
}

func (storage *SNovaStorage) GetIDiskById(idStr string) (cloudprovider.ICloudDisk, error) {
	instance, err := storage.zone.region.GetInstance(idStr)
	if err != nil {
		return nil, err
	}
	disk := SDisk{
		ID:         instance.ID,
		Name:       fmt.Sprintf("root disk for %s", instance.Name),
		Size:       instance.Flavor.Disk,
		Status:     DISK_STATUS_IN_USE,
		Bootable:   true,
		CreatedAt:  instance.Created,
		VolumeType: api.STORAGE_OPENSTACK_NOVA,
	}
	disk.nova = storage
	return &disk, nil
}

func (storage *SNovaStorage) GetMountPoint() string {
	return ""
}

func (storage *SNovaStorage) IsSysDiskStore() bool {
	return true
}