<!--
***********************************************************************************************
Microsoft.NET.AspireWorkloadDeprecation.targets
 
WARNING:  DO NOT MODIFY this file unless you are knowledgeable about MSBuild and have
          created a backup copy.  Incorrect changes to this file will make it
          impossible to load or build your projects from the command-line or the IDE.
 
Copyright (c) .NET Foundation. All rights reserved.
***********************************************************************************************
-->
<Project>
 
  <!--
    This target detects old Aspire applications that still depend on the deprecated Aspire workload.
 
    Starting with Aspire 9.0.0, Aspire moved from a workload-based distribution model to NuGet packages
    with the Aspire.AppHost.Sdk. Projects using the old workload-based approach need to be upgraded.
 
    Detection logic:
    - IsAspireHost='true' indicates this is an Aspire host project
    - AspireHostingSDKVersion is set by Aspire.AppHost.Sdk in new projects (9.0.0+)
    - If AspireHostingSDKVersion is missing or < 9.0.0, this is likely an old workload-based project
 
    This check runs before PrepareForBuild to catch the issue early in the build process.
 
    Note: This error provides a clear upgrade message for customers. Without it, users would get
    confusing errors about missing workloads that no longer exist, since the Aspire workload has
    been removed from the SDK.
  -->
  <Target Name="_CheckForAspireWorkloadDeprecation"
          BeforeTargets="PrepareForBuild"
          Condition="'$(IsAspireHost)' == 'true' and ('$(AspireHostingSDKVersion)' == '' or $([MSBuild]::VersionLessThan('$(AspireHostingSDKVersion)', '9.0.0')))">
 
    <NetSdkError ResourceName="AspireWorkloadIsDeprecated"
                 FormatArguments="https://aka.ms/aspire/update-to-sdk" />
 
  </Target>
 
</Project>