// 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 nutanix

import (
	"fmt"
	"io"
	"net/http"
	"net/url"

	"yunion.io/x/jsonutils"
	"yunion.io/x/pkg/errors"

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

type SRegion struct {
	multicloud.SRegion
	multicloud.SNoObjectStorageRegion
	multicloud.SNoLbRegion

	cli *SNutanixClient
}

func (self *SRegion) GetId() string {
	return self.cli.cpcfg.Id
}

func (self *SRegion) GetGlobalId() string {
	return fmt.Sprintf("%s/%s", api.CLOUD_PROVIDER_NUTANIX, self.cli.cpcfg.Id)
}

func (self *SRegion) GetName() string {
	return self.cli.cpcfg.Name
}

func (self *SRegion) GetI18n() cloudprovider.SModelI18nTable {
	table := cloudprovider.SModelI18nTable{}
	table["name"] = cloudprovider.NewSModelI18nEntry(self.GetName()).CN(self.GetName())
	return table
}

func (self *SRegion) CreateEIP(opts *cloudprovider.SEip) (cloudprovider.ICloudEIP, error) {
	return nil, cloudprovider.ErrNotSupported
}

func (self *SRegion) GetISecurityGroupById(secgroupId string) (cloudprovider.ICloudSecurityGroup, error) {
	return nil, cloudprovider.ErrNotSupported
}

func (self *SRegion) CreateISecurityGroup(conf *cloudprovider.SecurityGroupCreateInput) (cloudprovider.ICloudSecurityGroup, error) {
	return nil, cloudprovider.ErrNotSupported
}

func (self *SRegion) CreateIVpc(opts *cloudprovider.VpcCreateOptions) (cloudprovider.ICloudVpc, error) {
	return self.CreateVpc(opts)
}

func (self *SRegion) GetCapabilities() []string {
	return self.cli.GetCapabilities()
}

func (self *SRegion) GetCloudEnv() string {
	return ""
}

func (self *SRegion) GetProvider() string {
	return api.CLOUD_PROVIDER_NUTANIX
}

func (self *SRegion) GetStatus() string {
	return api.CLOUD_REGION_STATUS_INSERVER
}

func (self *SRegion) GetGeographicInfo() cloudprovider.SGeographicInfo {
	return cloudprovider.SGeographicInfo{}
}

func (self *SRegion) GetIEipById(id string) (cloudprovider.ICloudEIP, error) {
	return nil, cloudprovider.ErrNotFound
}

func (self *SRegion) GetIEips() ([]cloudprovider.ICloudEIP, error) {
	return []cloudprovider.ICloudEIP{}, nil
}

func (self *SRegion) GetIVpcById(id string) (cloudprovider.ICloudVpc, error) {
	vpc, err := self.GetVpc(id)
	if err != nil {
		return nil, errors.Wrapf(err, "GetVpc(%s)", id)
	}
	return vpc, nil
}

func (self *SRegion) GetIVpcs() ([]cloudprovider.ICloudVpc, error) {
	vpcs, err := self.GetVpcs()
	if err != nil {
		return nil, errors.Wrapf(err, "GetVpcs")
	}
	ret := []cloudprovider.ICloudVpc{}
	for i := range vpcs {
		vpcs[i].region = self
		ret = append(ret, &vpcs[i])
	}
	return ret, nil
}

func (self *SRegion) GetIZones() ([]cloudprovider.ICloudZone, error) {
	clusters, err := self.GetClusters()
	if err != nil {
		return nil, errors.Wrapf(err, "GetClusters")
	}
	ret := []cloudprovider.ICloudZone{}
	for i := range clusters {
		ret = append(ret, &SZone{
			SCluster: clusters[i],
			region:   self,
		})
	}
	return ret, nil
}

func (self *SRegion) GetIZoneById(id string) (cloudprovider.ICloudZone, error) {
	zones, err := self.GetIZones()
	if err != nil {
		return nil, errors.Wrapf(err, "GetIZones")
	}
	for i := range zones {
		if zones[i].GetGlobalId() == id {
			return zones[i], nil
		}
	}
	return nil, errors.Wrapf(cloudprovider.ErrNotFound, "%s", id)
}

func (self *SRegion) GetIHosts() ([]cloudprovider.ICloudHost, error) {
	zones, err := self.GetIZones()
	if err != nil {
		return nil, errors.Wrapf(err, "GetIZones")
	}
	ret := []cloudprovider.ICloudHost{}
	for i := range zones {
		part, err := zones[i].GetIHosts()
		if err != nil {
			return nil, errors.Wrapf(err, "GetIHost")
		}
		ret = append(ret, part...)
	}
	return ret, nil
}

func (self *SRegion) GetIVMById(id string) (cloudprovider.ICloudVM, error) {
	vm, err := self.GetInstance(id)
	if err != nil {
		return nil, err
	}
	return vm, nil
}

func (self *SRegion) GetIHostById(id string) (cloudprovider.ICloudHost, error) {
	hosts, err := self.GetIHosts()
	if err != nil {
		return nil, errors.Wrapf(err, "GetIHosts")
	}
	for i := range hosts {
		if hosts[i].GetGlobalId() == id {
			return hosts[i], nil
		}
	}
	return nil, cloudprovider.ErrNotFound
}

func (self *SRegion) list(res string, params url.Values, retVal interface{}) (int, error) {
	return self.cli.list(res, params, retVal)
}

func (self *SRegion) get(res, id string, params url.Values, retVal interface{}) error {
	return self.cli.get(res, id, params, retVal)
}

func (self *SRegion) listAll(res string, params url.Values, retVal interface{}) error {
	return self.cli.listAll(res, params, retVal)
}

func (self *SRegion) post(res string, body jsonutils.JSONObject, retVal interface{}) error {
	return self.cli.post(res, body, retVal)
}

func (self *SRegion) delete(res string, id string) error {
	return self.cli.delete(res, id)
}

func (self *SRegion) update(res string, id string, body jsonutils.JSONObject, retVal interface{}) error {
	return self.cli.update(res, id, body, retVal)
}

func (self *SRegion) upload(res string, id string, header http.Header, body io.Reader) (jsonutils.JSONObject, error) {
	return self.cli.upload(res, id, header, body)
}

func (self *SRegion) getTask(id string) (*STask, error) {
	task := &STask{}
	return task, self.get("tasks", id, nil, task)
}

func (region *SRegion) GetIVMs() ([]cloudprovider.ICloudVM, error) {
	vms, err := region.GetInstances()
	if err != nil {
		return nil, errors.Wrapf(err, "GetInstances")
	}
	ret := []cloudprovider.ICloudVM{}
	for i := range vms {
		ret = append(ret, &vms[i])
	}
	return ret, nil
}