// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
// Code generated by Microsoft (R) AutoRest Code Generator.

package com.azure.resourcemanager.compute.implementation;

import com.azure.core.annotation.ExpectedResponses;
import com.azure.core.annotation.Get;
import com.azure.core.annotation.HeaderParam;
import com.azure.core.annotation.Headers;
import com.azure.core.annotation.Host;
import com.azure.core.annotation.HostParam;
import com.azure.core.annotation.PathParam;
import com.azure.core.annotation.Post;
import com.azure.core.annotation.QueryParam;
import com.azure.core.annotation.ReturnType;
import com.azure.core.annotation.ServiceInterface;
import com.azure.core.annotation.ServiceMethod;
import com.azure.core.annotation.UnexpectedResponseExceptionType;
import com.azure.core.http.rest.Response;
import com.azure.core.http.rest.RestProxy;
import com.azure.core.management.polling.PollResult;
import com.azure.core.util.Context;
import com.azure.core.util.FluxUtil;
import com.azure.core.util.polling.PollerFlux;
import com.azure.core.util.polling.SyncPoller;
import com.azure.resourcemanager.compute.fluent.VirtualMachineScaleSetRollingUpgradesClient;
import com.azure.resourcemanager.compute.fluent.models.RollingUpgradeStatusInfoInner;
import com.azure.resourcemanager.compute.models.ApiErrorException;
import java.nio.ByteBuffer;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;

/**
 * An instance of this class provides access to all the operations defined in
 * VirtualMachineScaleSetRollingUpgradesClient.
 */
public final class VirtualMachineScaleSetRollingUpgradesClientImpl
    implements VirtualMachineScaleSetRollingUpgradesClient {
    /** The proxy service used to perform REST calls. */
    private final VirtualMachineScaleSetRollingUpgradesService service;

    /** The service client containing this operation class. */
    private final ComputeManagementClientImpl client;

    /**
     * Initializes an instance of VirtualMachineScaleSetRollingUpgradesClientImpl.
     *
     * @param client the instance of the service client containing this operation class.
     */
    VirtualMachineScaleSetRollingUpgradesClientImpl(ComputeManagementClientImpl client) {
        this.service =
            RestProxy
                .create(
                    VirtualMachineScaleSetRollingUpgradesService.class,
                    client.getHttpPipeline(),
                    client.getSerializerAdapter());
        this.client = client;
    }

    /**
     * The interface defining all the services for ComputeManagementClientVirtualMachineScaleSetRollingUpgrades to be
     * used by the proxy service to perform REST calls.
     */
    @Host("{$host}")
    @ServiceInterface(name = "ComputeManagementCli")
    public interface VirtualMachineScaleSetRollingUpgradesService {
        @Headers({"Content-Type: application/json"})
        @Post(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/rollingUpgrades/cancel")
        @ExpectedResponses({200, 202})
        @UnexpectedResponseExceptionType(ApiErrorException.class)
        Mono<Response<Flux<ByteBuffer>>> cancel(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("vmScaleSetName") String vmScaleSetName,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Post(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/osRollingUpgrade")
        @ExpectedResponses({200, 202})
        @UnexpectedResponseExceptionType(ApiErrorException.class)
        Mono<Response<Flux<ByteBuffer>>> startOSUpgrade(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("vmScaleSetName") String vmScaleSetName,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Post(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/extensionRollingUpgrade")
        @ExpectedResponses({200, 202})
        @UnexpectedResponseExceptionType(ApiErrorException.class)
        Mono<Response<Flux<ByteBuffer>>> startExtensionUpgrade(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("vmScaleSetName") String vmScaleSetName,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Get(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/rollingUpgrades/latest")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ApiErrorException.class)
        Mono<Response<RollingUpgradeStatusInfoInner>> getLatest(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("vmScaleSetName") String vmScaleSetName,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            @HeaderParam("Accept") String accept,
            Context context);
    }

    /**
     * Cancels the current virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Response<Flux<ByteBuffer>>> cancelWithResponseAsync(String resourceGroupName, String vmScaleSetName) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (vmScaleSetName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmScaleSetName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String apiVersion = "2023-03-01";
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .cancel(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            vmScaleSetName,
                            apiVersion,
                            this.client.getSubscriptionId(),
                            accept,
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Cancels the current virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> cancelWithResponseAsync(
        String resourceGroupName, String vmScaleSetName, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (vmScaleSetName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmScaleSetName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String apiVersion = "2023-03-01";
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .cancel(
                this.client.getEndpoint(),
                resourceGroupName,
                vmScaleSetName,
                apiVersion,
                this.client.getSubscriptionId(),
                accept,
                context);
    }

    /**
     * Cancels the current virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public PollerFlux<PollResult<Void>, Void> beginCancelAsync(String resourceGroupName, String vmScaleSetName) {
        Mono<Response<Flux<ByteBuffer>>> mono = cancelWithResponseAsync(resourceGroupName, vmScaleSetName);
        return this
            .client
            .<Void, Void>getLroResult(
                mono, this.client.getHttpPipeline(), Void.class, Void.class, this.client.getContext());
    }

    /**
     * Cancels the current virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux<PollResult<Void>, Void> beginCancelAsync(
        String resourceGroupName, String vmScaleSetName, Context context) {
        context = this.client.mergeContext(context);
        Mono<Response<Flux<ByteBuffer>>> mono = cancelWithResponseAsync(resourceGroupName, vmScaleSetName, context);
        return this
            .client
            .<Void, Void>getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class, context);
    }

    /**
     * Cancels the current virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<Void>, Void> beginCancel(String resourceGroupName, String vmScaleSetName) {
        return this.beginCancelAsync(resourceGroupName, vmScaleSetName).getSyncPoller();
    }

    /**
     * Cancels the current virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<Void>, Void> beginCancel(
        String resourceGroupName, String vmScaleSetName, Context context) {
        return this.beginCancelAsync(resourceGroupName, vmScaleSetName, context).getSyncPoller();
    }

    /**
     * Cancels the current virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return A {@link Mono} that completes when a successful response is received.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Void> cancelAsync(String resourceGroupName, String vmScaleSetName) {
        return beginCancelAsync(resourceGroupName, vmScaleSetName)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Cancels the current virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return A {@link Mono} that completes when a successful response is received.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Void> cancelAsync(String resourceGroupName, String vmScaleSetName, Context context) {
        return beginCancelAsync(resourceGroupName, vmScaleSetName, context)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Cancels the current virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public void cancel(String resourceGroupName, String vmScaleSetName) {
        cancelAsync(resourceGroupName, vmScaleSetName).block();
    }

    /**
     * Cancels the current virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public void cancel(String resourceGroupName, String vmScaleSetName, Context context) {
        cancelAsync(resourceGroupName, vmScaleSetName, context).block();
    }

    /**
     * Starts a rolling upgrade to move all virtual machine scale set instances to the latest available Platform Image
     * OS version. Instances which are already running the latest available OS version are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Response<Flux<ByteBuffer>>> startOSUpgradeWithResponseAsync(
        String resourceGroupName, String vmScaleSetName) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (vmScaleSetName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmScaleSetName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String apiVersion = "2023-03-01";
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .startOSUpgrade(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            vmScaleSetName,
                            apiVersion,
                            this.client.getSubscriptionId(),
                            accept,
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Starts a rolling upgrade to move all virtual machine scale set instances to the latest available Platform Image
     * OS version. Instances which are already running the latest available OS version are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> startOSUpgradeWithResponseAsync(
        String resourceGroupName, String vmScaleSetName, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (vmScaleSetName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmScaleSetName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String apiVersion = "2023-03-01";
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .startOSUpgrade(
                this.client.getEndpoint(),
                resourceGroupName,
                vmScaleSetName,
                apiVersion,
                this.client.getSubscriptionId(),
                accept,
                context);
    }

    /**
     * Starts a rolling upgrade to move all virtual machine scale set instances to the latest available Platform Image
     * OS version. Instances which are already running the latest available OS version are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public PollerFlux<PollResult<Void>, Void> beginStartOSUpgradeAsync(
        String resourceGroupName, String vmScaleSetName) {
        Mono<Response<Flux<ByteBuffer>>> mono = startOSUpgradeWithResponseAsync(resourceGroupName, vmScaleSetName);
        return this
            .client
            .<Void, Void>getLroResult(
                mono, this.client.getHttpPipeline(), Void.class, Void.class, this.client.getContext());
    }

    /**
     * Starts a rolling upgrade to move all virtual machine scale set instances to the latest available Platform Image
     * OS version. Instances which are already running the latest available OS version are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux<PollResult<Void>, Void> beginStartOSUpgradeAsync(
        String resourceGroupName, String vmScaleSetName, Context context) {
        context = this.client.mergeContext(context);
        Mono<Response<Flux<ByteBuffer>>> mono =
            startOSUpgradeWithResponseAsync(resourceGroupName, vmScaleSetName, context);
        return this
            .client
            .<Void, Void>getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class, context);
    }

    /**
     * Starts a rolling upgrade to move all virtual machine scale set instances to the latest available Platform Image
     * OS version. Instances which are already running the latest available OS version are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<Void>, Void> beginStartOSUpgrade(String resourceGroupName, String vmScaleSetName) {
        return this.beginStartOSUpgradeAsync(resourceGroupName, vmScaleSetName).getSyncPoller();
    }

    /**
     * Starts a rolling upgrade to move all virtual machine scale set instances to the latest available Platform Image
     * OS version. Instances which are already running the latest available OS version are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<Void>, Void> beginStartOSUpgrade(
        String resourceGroupName, String vmScaleSetName, Context context) {
        return this.beginStartOSUpgradeAsync(resourceGroupName, vmScaleSetName, context).getSyncPoller();
    }

    /**
     * Starts a rolling upgrade to move all virtual machine scale set instances to the latest available Platform Image
     * OS version. Instances which are already running the latest available OS version are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return A {@link Mono} that completes when a successful response is received.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Void> startOSUpgradeAsync(String resourceGroupName, String vmScaleSetName) {
        return beginStartOSUpgradeAsync(resourceGroupName, vmScaleSetName)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Starts a rolling upgrade to move all virtual machine scale set instances to the latest available Platform Image
     * OS version. Instances which are already running the latest available OS version are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return A {@link Mono} that completes when a successful response is received.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Void> startOSUpgradeAsync(String resourceGroupName, String vmScaleSetName, Context context) {
        return beginStartOSUpgradeAsync(resourceGroupName, vmScaleSetName, context)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Starts a rolling upgrade to move all virtual machine scale set instances to the latest available Platform Image
     * OS version. Instances which are already running the latest available OS version are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public void startOSUpgrade(String resourceGroupName, String vmScaleSetName) {
        startOSUpgradeAsync(resourceGroupName, vmScaleSetName).block();
    }

    /**
     * Starts a rolling upgrade to move all virtual machine scale set instances to the latest available Platform Image
     * OS version. Instances which are already running the latest available OS version are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public void startOSUpgrade(String resourceGroupName, String vmScaleSetName, Context context) {
        startOSUpgradeAsync(resourceGroupName, vmScaleSetName, context).block();
    }

    /**
     * Starts a rolling upgrade to move all extensions for all virtual machine scale set instances to the latest
     * available extension version. Instances which are already running the latest extension versions are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Response<Flux<ByteBuffer>>> startExtensionUpgradeWithResponseAsync(
        String resourceGroupName, String vmScaleSetName) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (vmScaleSetName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmScaleSetName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String apiVersion = "2023-03-01";
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .startExtensionUpgrade(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            vmScaleSetName,
                            apiVersion,
                            this.client.getSubscriptionId(),
                            accept,
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Starts a rolling upgrade to move all extensions for all virtual machine scale set instances to the latest
     * available extension version. Instances which are already running the latest extension versions are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> startExtensionUpgradeWithResponseAsync(
        String resourceGroupName, String vmScaleSetName, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (vmScaleSetName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmScaleSetName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String apiVersion = "2023-03-01";
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .startExtensionUpgrade(
                this.client.getEndpoint(),
                resourceGroupName,
                vmScaleSetName,
                apiVersion,
                this.client.getSubscriptionId(),
                accept,
                context);
    }

    /**
     * Starts a rolling upgrade to move all extensions for all virtual machine scale set instances to the latest
     * available extension version. Instances which are already running the latest extension versions are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public PollerFlux<PollResult<Void>, Void> beginStartExtensionUpgradeAsync(
        String resourceGroupName, String vmScaleSetName) {
        Mono<Response<Flux<ByteBuffer>>> mono =
            startExtensionUpgradeWithResponseAsync(resourceGroupName, vmScaleSetName);
        return this
            .client
            .<Void, Void>getLroResult(
                mono, this.client.getHttpPipeline(), Void.class, Void.class, this.client.getContext());
    }

    /**
     * Starts a rolling upgrade to move all extensions for all virtual machine scale set instances to the latest
     * available extension version. Instances which are already running the latest extension versions are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux<PollResult<Void>, Void> beginStartExtensionUpgradeAsync(
        String resourceGroupName, String vmScaleSetName, Context context) {
        context = this.client.mergeContext(context);
        Mono<Response<Flux<ByteBuffer>>> mono =
            startExtensionUpgradeWithResponseAsync(resourceGroupName, vmScaleSetName, context);
        return this
            .client
            .<Void, Void>getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class, context);
    }

    /**
     * Starts a rolling upgrade to move all extensions for all virtual machine scale set instances to the latest
     * available extension version. Instances which are already running the latest extension versions are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<Void>, Void> beginStartExtensionUpgrade(
        String resourceGroupName, String vmScaleSetName) {
        return this.beginStartExtensionUpgradeAsync(resourceGroupName, vmScaleSetName).getSyncPoller();
    }

    /**
     * Starts a rolling upgrade to move all extensions for all virtual machine scale set instances to the latest
     * available extension version. Instances which are already running the latest extension versions are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<Void>, Void> beginStartExtensionUpgrade(
        String resourceGroupName, String vmScaleSetName, Context context) {
        return this.beginStartExtensionUpgradeAsync(resourceGroupName, vmScaleSetName, context).getSyncPoller();
    }

    /**
     * Starts a rolling upgrade to move all extensions for all virtual machine scale set instances to the latest
     * available extension version. Instances which are already running the latest extension versions are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return A {@link Mono} that completes when a successful response is received.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Void> startExtensionUpgradeAsync(String resourceGroupName, String vmScaleSetName) {
        return beginStartExtensionUpgradeAsync(resourceGroupName, vmScaleSetName)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Starts a rolling upgrade to move all extensions for all virtual machine scale set instances to the latest
     * available extension version. Instances which are already running the latest extension versions are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return A {@link Mono} that completes when a successful response is received.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Void> startExtensionUpgradeAsync(String resourceGroupName, String vmScaleSetName, Context context) {
        return beginStartExtensionUpgradeAsync(resourceGroupName, vmScaleSetName, context)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Starts a rolling upgrade to move all extensions for all virtual machine scale set instances to the latest
     * available extension version. Instances which are already running the latest extension versions are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public void startExtensionUpgrade(String resourceGroupName, String vmScaleSetName) {
        startExtensionUpgradeAsync(resourceGroupName, vmScaleSetName).block();
    }

    /**
     * Starts a rolling upgrade to move all extensions for all virtual machine scale set instances to the latest
     * available extension version. Instances which are already running the latest extension versions are not affected.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public void startExtensionUpgrade(String resourceGroupName, String vmScaleSetName, Context context) {
        startExtensionUpgradeAsync(resourceGroupName, vmScaleSetName, context).block();
    }

    /**
     * Gets the status of the latest virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the status of the latest virtual machine scale set rolling upgrade along with {@link Response} on
     *     successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Response<RollingUpgradeStatusInfoInner>> getLatestWithResponseAsync(
        String resourceGroupName, String vmScaleSetName) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (vmScaleSetName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmScaleSetName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String apiVersion = "2023-03-01";
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .getLatest(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            vmScaleSetName,
                            apiVersion,
                            this.client.getSubscriptionId(),
                            accept,
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Gets the status of the latest virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the status of the latest virtual machine scale set rolling upgrade along with {@link Response} on
     *     successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<RollingUpgradeStatusInfoInner>> getLatestWithResponseAsync(
        String resourceGroupName, String vmScaleSetName, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (vmScaleSetName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmScaleSetName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String apiVersion = "2023-03-01";
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .getLatest(
                this.client.getEndpoint(),
                resourceGroupName,
                vmScaleSetName,
                apiVersion,
                this.client.getSubscriptionId(),
                accept,
                context);
    }

    /**
     * Gets the status of the latest virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the status of the latest virtual machine scale set rolling upgrade on successful completion of {@link
     *     Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<RollingUpgradeStatusInfoInner> getLatestAsync(String resourceGroupName, String vmScaleSetName) {
        return getLatestWithResponseAsync(resourceGroupName, vmScaleSetName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Gets the status of the latest virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the status of the latest virtual machine scale set rolling upgrade along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response<RollingUpgradeStatusInfoInner> getLatestWithResponse(
        String resourceGroupName, String vmScaleSetName, Context context) {
        return getLatestWithResponseAsync(resourceGroupName, vmScaleSetName, context).block();
    }

    /**
     * Gets the status of the latest virtual machine scale set rolling upgrade.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmScaleSetName The name of the VM scale set.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ApiErrorException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the status of the latest virtual machine scale set rolling upgrade.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public RollingUpgradeStatusInfoInner getLatest(String resourceGroupName, String vmScaleSetName) {
        return getLatestWithResponse(resourceGroupName, vmScaleSetName, Context.NONE).getValue();
    }
}
