// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
// Code generated by Microsoft (R) Go Code Generator. DO NOT EDIT.

package armelasticsan

import (
	"context"
	"errors"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore/arm"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime"
	"net/http"
	"net/url"
	"strings"
)

// VolumesClient contains the methods for the Volumes group.
// Don't use this type directly, use NewVolumesClient() instead.
//
// Generated from API version 2025-09-01
type VolumesClient struct {
	internal       *arm.Client
	subscriptionID string
}

// NewVolumesClient creates a new instance of VolumesClient with the specified values.
//   - subscriptionID - The ID of the target subscription. The value must be an UUID.
//   - credential - used to authorize requests. Usually a credential from azidentity.
//   - options - Contains optional client configuration. Pass nil to accept the default values.
func NewVolumesClient(subscriptionID string, credential azcore.TokenCredential, options *arm.ClientOptions) (*VolumesClient, error) {
	cl, err := arm.NewClient(moduleName, moduleVersion, credential, options)
	if err != nil {
		return nil, err
	}
	client := &VolumesClient{
		subscriptionID: subscriptionID,
		internal:       cl,
	}
	return client, nil
}

// BeginCreate - Create a Volume.
// If the operation fails it returns an *azcore.ResponseError type.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - elasticSanName - The name of the ElasticSan.
//   - volumeGroupName - The name of the VolumeGroup.
//   - volumeName - The name of the Volume.
//   - parameters - Volume object.
//   - options - VolumesClientBeginCreateOptions contains the optional parameters for the VolumesClient.BeginCreate method.
func (client *VolumesClient) BeginCreate(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, volumeName string, parameters Volume, options *VolumesClientBeginCreateOptions) (*runtime.Poller[VolumesClientCreateResponse], error) {
	if options == nil || options.ResumeToken == "" {
		resp, err := client.create(ctx, resourceGroupName, elasticSanName, volumeGroupName, volumeName, parameters, options)
		if err != nil {
			return nil, err
		}
		poller, err := runtime.NewPoller(resp, client.internal.Pipeline(), &runtime.NewPollerOptions[VolumesClientCreateResponse]{
			Tracer: client.internal.Tracer(),
		})
		return poller, err
	} else {
		return runtime.NewPollerFromResumeToken(options.ResumeToken, client.internal.Pipeline(), &runtime.NewPollerFromResumeTokenOptions[VolumesClientCreateResponse]{
			Tracer: client.internal.Tracer(),
		})
	}
}

// Create - Create a Volume.
// If the operation fails it returns an *azcore.ResponseError type.
func (client *VolumesClient) create(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, volumeName string, parameters Volume, options *VolumesClientBeginCreateOptions) (*http.Response, error) {
	var err error
	const operationName = "VolumesClient.BeginCreate"
	ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, operationName)
	ctx, endSpan := runtime.StartSpan(ctx, operationName, client.internal.Tracer(), nil)
	defer func() { endSpan(err) }()
	req, err := client.createCreateRequest(ctx, resourceGroupName, elasticSanName, volumeGroupName, volumeName, parameters, options)
	if err != nil {
		return nil, err
	}
	httpResp, err := client.internal.Pipeline().Do(req)
	if err != nil {
		return nil, err
	}
	if !runtime.HasStatusCode(httpResp, http.StatusOK, http.StatusCreated) {
		err = runtime.NewResponseError(httpResp)
		return nil, err
	}
	return httpResp, nil
}

// createCreateRequest creates the Create request.
func (client *VolumesClient) createCreateRequest(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, volumeName string, parameters Volume, _ *VolumesClientBeginCreateOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ElasticSan/elasticSans/{elasticSanName}/volumegroups/{volumeGroupName}/volumes/{volumeName}"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if elasticSanName == "" {
		return nil, errors.New("parameter elasticSanName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{elasticSanName}", url.PathEscape(elasticSanName))
	if volumeGroupName == "" {
		return nil, errors.New("parameter volumeGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{volumeGroupName}", url.PathEscape(volumeGroupName))
	if volumeName == "" {
		return nil, errors.New("parameter volumeName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{volumeName}", url.PathEscape(volumeName))
	req, err := runtime.NewRequest(ctx, http.MethodPut, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", version20250901)
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	req.Raw().Header["Accept"] = []string{"application/json"}
	req.Raw().Header["Content-Type"] = []string{"application/json"}
	if err := runtime.MarshalAsJSON(req, parameters); err != nil {
		return nil, err
	}
	return req, nil
}

// BeginDelete - Delete an Volume.
// If the operation fails it returns an *azcore.ResponseError type.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - elasticSanName - The name of the ElasticSan.
//   - volumeGroupName - The name of the VolumeGroup.
//   - volumeName - The name of the Volume.
//   - options - VolumesClientBeginDeleteOptions contains the optional parameters for the VolumesClient.BeginDelete method.
func (client *VolumesClient) BeginDelete(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, volumeName string, options *VolumesClientBeginDeleteOptions) (*runtime.Poller[VolumesClientDeleteResponse], error) {
	if options == nil || options.ResumeToken == "" {
		resp, err := client.deleteOperation(ctx, resourceGroupName, elasticSanName, volumeGroupName, volumeName, options)
		if err != nil {
			return nil, err
		}
		poller, err := runtime.NewPoller(resp, client.internal.Pipeline(), &runtime.NewPollerOptions[VolumesClientDeleteResponse]{
			Tracer: client.internal.Tracer(),
		})
		return poller, err
	} else {
		return runtime.NewPollerFromResumeToken(options.ResumeToken, client.internal.Pipeline(), &runtime.NewPollerFromResumeTokenOptions[VolumesClientDeleteResponse]{
			Tracer: client.internal.Tracer(),
		})
	}
}

// Delete - Delete an Volume.
// If the operation fails it returns an *azcore.ResponseError type.
func (client *VolumesClient) deleteOperation(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, volumeName string, options *VolumesClientBeginDeleteOptions) (*http.Response, error) {
	var err error
	const operationName = "VolumesClient.BeginDelete"
	ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, operationName)
	ctx, endSpan := runtime.StartSpan(ctx, operationName, client.internal.Tracer(), nil)
	defer func() { endSpan(err) }()
	req, err := client.deleteCreateRequest(ctx, resourceGroupName, elasticSanName, volumeGroupName, volumeName, options)
	if err != nil {
		return nil, err
	}
	httpResp, err := client.internal.Pipeline().Do(req)
	if err != nil {
		return nil, err
	}
	if !runtime.HasStatusCode(httpResp, http.StatusOK, http.StatusAccepted, http.StatusNoContent) {
		err = runtime.NewResponseError(httpResp)
		return nil, err
	}
	return httpResp, nil
}

// deleteCreateRequest creates the Delete request.
func (client *VolumesClient) deleteCreateRequest(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, volumeName string, options *VolumesClientBeginDeleteOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ElasticSan/elasticSans/{elasticSanName}/volumegroups/{volumeGroupName}/volumes/{volumeName}"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if elasticSanName == "" {
		return nil, errors.New("parameter elasticSanName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{elasticSanName}", url.PathEscape(elasticSanName))
	if volumeGroupName == "" {
		return nil, errors.New("parameter volumeGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{volumeGroupName}", url.PathEscape(volumeGroupName))
	if volumeName == "" {
		return nil, errors.New("parameter volumeName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{volumeName}", url.PathEscape(volumeName))
	req, err := runtime.NewRequest(ctx, http.MethodDelete, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", version20250901)
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	if options != nil && options.XMSDeleteSnapshots != nil {
		req.Raw().Header["x-ms-delete-snapshots"] = []string{string(*options.XMSDeleteSnapshots)}
	}
	if options != nil && options.XMSForceDelete != nil {
		req.Raw().Header["x-ms-force-delete"] = []string{string(*options.XMSForceDelete)}
	}
	return req, nil
}

// Get - Get an Volume.
// If the operation fails it returns an *azcore.ResponseError type.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - elasticSanName - The name of the ElasticSan.
//   - volumeGroupName - The name of the VolumeGroup.
//   - volumeName - The name of the Volume.
//   - options - VolumesClientGetOptions contains the optional parameters for the VolumesClient.Get method.
func (client *VolumesClient) Get(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, volumeName string, options *VolumesClientGetOptions) (VolumesClientGetResponse, error) {
	var err error
	const operationName = "VolumesClient.Get"
	ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, operationName)
	ctx, endSpan := runtime.StartSpan(ctx, operationName, client.internal.Tracer(), nil)
	defer func() { endSpan(err) }()
	req, err := client.getCreateRequest(ctx, resourceGroupName, elasticSanName, volumeGroupName, volumeName, options)
	if err != nil {
		return VolumesClientGetResponse{}, err
	}
	httpResp, err := client.internal.Pipeline().Do(req)
	if err != nil {
		return VolumesClientGetResponse{}, err
	}
	if !runtime.HasStatusCode(httpResp, http.StatusOK) {
		err = runtime.NewResponseError(httpResp)
		return VolumesClientGetResponse{}, err
	}
	resp, err := client.getHandleResponse(httpResp)
	return resp, err
}

// getCreateRequest creates the Get request.
func (client *VolumesClient) getCreateRequest(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, volumeName string, _ *VolumesClientGetOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ElasticSan/elasticSans/{elasticSanName}/volumegroups/{volumeGroupName}/volumes/{volumeName}"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if elasticSanName == "" {
		return nil, errors.New("parameter elasticSanName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{elasticSanName}", url.PathEscape(elasticSanName))
	if volumeGroupName == "" {
		return nil, errors.New("parameter volumeGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{volumeGroupName}", url.PathEscape(volumeGroupName))
	if volumeName == "" {
		return nil, errors.New("parameter volumeName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{volumeName}", url.PathEscape(volumeName))
	req, err := runtime.NewRequest(ctx, http.MethodGet, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", version20250901)
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	req.Raw().Header["Accept"] = []string{"application/json"}
	return req, nil
}

// getHandleResponse handles the Get response.
func (client *VolumesClient) getHandleResponse(resp *http.Response) (VolumesClientGetResponse, error) {
	result := VolumesClientGetResponse{}
	if err := runtime.UnmarshalAsJSON(resp, &result.Volume); err != nil {
		return VolumesClientGetResponse{}, err
	}
	return result, nil
}

// NewListByVolumeGroupPager - List Volumes in a VolumeGroup.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - elasticSanName - The name of the ElasticSan.
//   - volumeGroupName - The name of the VolumeGroup.
//   - options - VolumesClientListByVolumeGroupOptions contains the optional parameters for the VolumesClient.NewListByVolumeGroupPager
//     method.
func (client *VolumesClient) NewListByVolumeGroupPager(resourceGroupName string, elasticSanName string, volumeGroupName string, options *VolumesClientListByVolumeGroupOptions) *runtime.Pager[VolumesClientListByVolumeGroupResponse] {
	return runtime.NewPager(runtime.PagingHandler[VolumesClientListByVolumeGroupResponse]{
		More: func(page VolumesClientListByVolumeGroupResponse) bool {
			return page.NextLink != nil && len(*page.NextLink) > 0
		},
		Fetcher: func(ctx context.Context, page *VolumesClientListByVolumeGroupResponse) (VolumesClientListByVolumeGroupResponse, error) {
			ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, "VolumesClient.NewListByVolumeGroupPager")
			nextLink := ""
			if page != nil {
				nextLink = *page.NextLink
			}
			resp, err := runtime.FetcherForNextLink(ctx, client.internal.Pipeline(), nextLink, func(ctx context.Context) (*policy.Request, error) {
				return client.listByVolumeGroupCreateRequest(ctx, resourceGroupName, elasticSanName, volumeGroupName, options)
			}, nil)
			if err != nil {
				return VolumesClientListByVolumeGroupResponse{}, err
			}
			return client.listByVolumeGroupHandleResponse(resp)
		},
		Tracer: client.internal.Tracer(),
	})
}

// listByVolumeGroupCreateRequest creates the ListByVolumeGroup request.
func (client *VolumesClient) listByVolumeGroupCreateRequest(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, _ *VolumesClientListByVolumeGroupOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ElasticSan/elasticSans/{elasticSanName}/volumegroups/{volumeGroupName}/volumes"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if elasticSanName == "" {
		return nil, errors.New("parameter elasticSanName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{elasticSanName}", url.PathEscape(elasticSanName))
	if volumeGroupName == "" {
		return nil, errors.New("parameter volumeGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{volumeGroupName}", url.PathEscape(volumeGroupName))
	req, err := runtime.NewRequest(ctx, http.MethodGet, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", version20250901)
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	req.Raw().Header["Accept"] = []string{"application/json"}
	return req, nil
}

// listByVolumeGroupHandleResponse handles the ListByVolumeGroup response.
func (client *VolumesClient) listByVolumeGroupHandleResponse(resp *http.Response) (VolumesClientListByVolumeGroupResponse, error) {
	result := VolumesClientListByVolumeGroupResponse{}
	if err := runtime.UnmarshalAsJSON(resp, &result.VolumeList); err != nil {
		return VolumesClientListByVolumeGroupResponse{}, err
	}
	return result, nil
}

// BeginPreBackup - Validate whether a disk snapshot backup can be taken for list of volumes.
// If the operation fails it returns an *azcore.ResponseError type.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - elasticSanName - The name of the ElasticSan.
//   - volumeGroupName - The name of the VolumeGroup.
//   - parameters - Volume Name List (currently only one volume name in the list is supported. Server would return error if list
//     is bigger)
//   - options - VolumesClientBeginPreBackupOptions contains the optional parameters for the VolumesClient.BeginPreBackup method.
func (client *VolumesClient) BeginPreBackup(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, parameters VolumeNameList, options *VolumesClientBeginPreBackupOptions) (*runtime.Poller[VolumesClientPreBackupResponse], error) {
	if options == nil || options.ResumeToken == "" {
		resp, err := client.preBackup(ctx, resourceGroupName, elasticSanName, volumeGroupName, parameters, options)
		if err != nil {
			return nil, err
		}
		poller, err := runtime.NewPoller(resp, client.internal.Pipeline(), &runtime.NewPollerOptions[VolumesClientPreBackupResponse]{
			Tracer: client.internal.Tracer(),
		})
		return poller, err
	} else {
		return runtime.NewPollerFromResumeToken(options.ResumeToken, client.internal.Pipeline(), &runtime.NewPollerFromResumeTokenOptions[VolumesClientPreBackupResponse]{
			Tracer: client.internal.Tracer(),
		})
	}
}

// PreBackup - Validate whether a disk snapshot backup can be taken for list of volumes.
// If the operation fails it returns an *azcore.ResponseError type.
func (client *VolumesClient) preBackup(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, parameters VolumeNameList, options *VolumesClientBeginPreBackupOptions) (*http.Response, error) {
	var err error
	const operationName = "VolumesClient.BeginPreBackup"
	ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, operationName)
	ctx, endSpan := runtime.StartSpan(ctx, operationName, client.internal.Tracer(), nil)
	defer func() { endSpan(err) }()
	req, err := client.preBackupCreateRequest(ctx, resourceGroupName, elasticSanName, volumeGroupName, parameters, options)
	if err != nil {
		return nil, err
	}
	httpResp, err := client.internal.Pipeline().Do(req)
	if err != nil {
		return nil, err
	}
	if !runtime.HasStatusCode(httpResp, http.StatusOK, http.StatusAccepted) {
		err = runtime.NewResponseError(httpResp)
		return nil, err
	}
	return httpResp, nil
}

// preBackupCreateRequest creates the PreBackup request.
func (client *VolumesClient) preBackupCreateRequest(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, parameters VolumeNameList, _ *VolumesClientBeginPreBackupOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ElasticSan/elasticSans/{elasticSanName}/volumegroups/{volumeGroupName}/preBackup"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if elasticSanName == "" {
		return nil, errors.New("parameter elasticSanName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{elasticSanName}", url.PathEscape(elasticSanName))
	if volumeGroupName == "" {
		return nil, errors.New("parameter volumeGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{volumeGroupName}", url.PathEscape(volumeGroupName))
	req, err := runtime.NewRequest(ctx, http.MethodPost, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", version20250901)
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	req.Raw().Header["Accept"] = []string{"application/json"}
	req.Raw().Header["Content-Type"] = []string{"application/json"}
	if err := runtime.MarshalAsJSON(req, parameters); err != nil {
		return nil, err
	}
	return req, nil
}

// BeginPreRestore - Validate whether a list of backed up disk snapshots can be restored into ElasticSan volumes.
// If the operation fails it returns an *azcore.ResponseError type.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - elasticSanName - The name of the ElasticSan.
//   - volumeGroupName - The name of the VolumeGroup.
//   - parameters - Disk Snapshot List (currently only one Disk Snapshot in the list is supported and that the Disk Snapshot must
//     be in same azure region as the ElasticSan. Server would return error if list is bigger)
//   - options - VolumesClientBeginPreRestoreOptions contains the optional parameters for the VolumesClient.BeginPreRestore method.
func (client *VolumesClient) BeginPreRestore(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, parameters DiskSnapshotList, options *VolumesClientBeginPreRestoreOptions) (*runtime.Poller[VolumesClientPreRestoreResponse], error) {
	if options == nil || options.ResumeToken == "" {
		resp, err := client.preRestore(ctx, resourceGroupName, elasticSanName, volumeGroupName, parameters, options)
		if err != nil {
			return nil, err
		}
		poller, err := runtime.NewPoller(resp, client.internal.Pipeline(), &runtime.NewPollerOptions[VolumesClientPreRestoreResponse]{
			Tracer: client.internal.Tracer(),
		})
		return poller, err
	} else {
		return runtime.NewPollerFromResumeToken(options.ResumeToken, client.internal.Pipeline(), &runtime.NewPollerFromResumeTokenOptions[VolumesClientPreRestoreResponse]{
			Tracer: client.internal.Tracer(),
		})
	}
}

// PreRestore - Validate whether a list of backed up disk snapshots can be restored into ElasticSan volumes.
// If the operation fails it returns an *azcore.ResponseError type.
func (client *VolumesClient) preRestore(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, parameters DiskSnapshotList, options *VolumesClientBeginPreRestoreOptions) (*http.Response, error) {
	var err error
	const operationName = "VolumesClient.BeginPreRestore"
	ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, operationName)
	ctx, endSpan := runtime.StartSpan(ctx, operationName, client.internal.Tracer(), nil)
	defer func() { endSpan(err) }()
	req, err := client.preRestoreCreateRequest(ctx, resourceGroupName, elasticSanName, volumeGroupName, parameters, options)
	if err != nil {
		return nil, err
	}
	httpResp, err := client.internal.Pipeline().Do(req)
	if err != nil {
		return nil, err
	}
	if !runtime.HasStatusCode(httpResp, http.StatusOK, http.StatusAccepted) {
		err = runtime.NewResponseError(httpResp)
		return nil, err
	}
	return httpResp, nil
}

// preRestoreCreateRequest creates the PreRestore request.
func (client *VolumesClient) preRestoreCreateRequest(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, parameters DiskSnapshotList, _ *VolumesClientBeginPreRestoreOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ElasticSan/elasticSans/{elasticSanName}/volumegroups/{volumeGroupName}/preRestore"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if elasticSanName == "" {
		return nil, errors.New("parameter elasticSanName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{elasticSanName}", url.PathEscape(elasticSanName))
	if volumeGroupName == "" {
		return nil, errors.New("parameter volumeGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{volumeGroupName}", url.PathEscape(volumeGroupName))
	req, err := runtime.NewRequest(ctx, http.MethodPost, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", version20250901)
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	req.Raw().Header["Accept"] = []string{"application/json"}
	req.Raw().Header["Content-Type"] = []string{"application/json"}
	if err := runtime.MarshalAsJSON(req, parameters); err != nil {
		return nil, err
	}
	return req, nil
}

// BeginUpdate - Update an Volume.
// If the operation fails it returns an *azcore.ResponseError type.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - elasticSanName - The name of the ElasticSan.
//   - volumeGroupName - The name of the VolumeGroup.
//   - volumeName - The name of the Volume.
//   - parameters - Volume object.
//   - options - VolumesClientBeginUpdateOptions contains the optional parameters for the VolumesClient.BeginUpdate method.
func (client *VolumesClient) BeginUpdate(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, volumeName string, parameters VolumeUpdate, options *VolumesClientBeginUpdateOptions) (*runtime.Poller[VolumesClientUpdateResponse], error) {
	if options == nil || options.ResumeToken == "" {
		resp, err := client.update(ctx, resourceGroupName, elasticSanName, volumeGroupName, volumeName, parameters, options)
		if err != nil {
			return nil, err
		}
		poller, err := runtime.NewPoller(resp, client.internal.Pipeline(), &runtime.NewPollerOptions[VolumesClientUpdateResponse]{
			Tracer: client.internal.Tracer(),
		})
		return poller, err
	} else {
		return runtime.NewPollerFromResumeToken(options.ResumeToken, client.internal.Pipeline(), &runtime.NewPollerFromResumeTokenOptions[VolumesClientUpdateResponse]{
			Tracer: client.internal.Tracer(),
		})
	}
}

// Update - Update an Volume.
// If the operation fails it returns an *azcore.ResponseError type.
func (client *VolumesClient) update(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, volumeName string, parameters VolumeUpdate, options *VolumesClientBeginUpdateOptions) (*http.Response, error) {
	var err error
	const operationName = "VolumesClient.BeginUpdate"
	ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, operationName)
	ctx, endSpan := runtime.StartSpan(ctx, operationName, client.internal.Tracer(), nil)
	defer func() { endSpan(err) }()
	req, err := client.updateCreateRequest(ctx, resourceGroupName, elasticSanName, volumeGroupName, volumeName, parameters, options)
	if err != nil {
		return nil, err
	}
	httpResp, err := client.internal.Pipeline().Do(req)
	if err != nil {
		return nil, err
	}
	if !runtime.HasStatusCode(httpResp, http.StatusOK, http.StatusAccepted) {
		err = runtime.NewResponseError(httpResp)
		return nil, err
	}
	return httpResp, nil
}

// updateCreateRequest creates the Update request.
func (client *VolumesClient) updateCreateRequest(ctx context.Context, resourceGroupName string, elasticSanName string, volumeGroupName string, volumeName string, parameters VolumeUpdate, _ *VolumesClientBeginUpdateOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ElasticSan/elasticSans/{elasticSanName}/volumegroups/{volumeGroupName}/volumes/{volumeName}"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if elasticSanName == "" {
		return nil, errors.New("parameter elasticSanName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{elasticSanName}", url.PathEscape(elasticSanName))
	if volumeGroupName == "" {
		return nil, errors.New("parameter volumeGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{volumeGroupName}", url.PathEscape(volumeGroupName))
	if volumeName == "" {
		return nil, errors.New("parameter volumeName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{volumeName}", url.PathEscape(volumeName))
	req, err := runtime.NewRequest(ctx, http.MethodPatch, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", version20250901)
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	req.Raw().Header["Accept"] = []string{"application/json"}
	req.Raw().Header["Content-Type"] = []string{"application/json"}
	if err := runtime.MarshalAsJSON(req, parameters); err != nil {
		return nil, err
	}
	return req, nil
}
