Platforms.props

<Project>
    <PropertyGroup>
        <SecRandomPlatform Condition="'$(SecRandomPlatform)' == '' and $(RuntimeIdentifier.StartsWith('win-'))">Windows</SecRandomPlatform>
        <SecRandomPlatform Condition="'$(SecRandomPlatform)' == '' and $(RuntimeIdentifier.StartsWith('linux-'))">Linux</SecRandomPlatform>
        <SecRandomPlatform Condition="'$(SecRandomPlatform)' == '' and $(RuntimeIdentifier.StartsWith('osx-'))">MacOs</SecRandomPlatform>
        <SecRandomPlatform Condition="'$(SecRandomPlatform)' == '' and '$(RuntimeIdentifier)' == '' and $([System.OperatingSystem]::IsWindows())">Windows</SecRandomPlatform>
        <SecRandomPlatform Condition="'$(SecRandomPlatform)' == '' and '$(RuntimeIdentifier)' == '' and $([System.OperatingSystem]::IsLinux())">Linux</SecRandomPlatform>
        <SecRandomPlatform Condition="'$(SecRandomPlatform)' == '' and '$(RuntimeIdentifier)' == '' and $([System.OperatingSystem]::IsMacOS())">MacOs</SecRandomPlatform>
    </PropertyGroup>

    <PropertyGroup Condition="'$(SecRandomPlatform)' == 'Windows'">
        <DefineConstants>$(DefineConstants);SEC_RANDOM_PLATFORM_WINDOWS</DefineConstants>
    </PropertyGroup>

    <PropertyGroup Condition="'$(SecRandomPlatform)' == 'Linux'">
        <DefineConstants>$(DefineConstants);SEC_RANDOM_PLATFORM_LINUX</DefineConstants>
    </PropertyGroup>

    <PropertyGroup Condition="'$(SecRandomPlatform)' == 'MacOs'">
        <DefineConstants>$(DefineConstants);SEC_RANDOM_PLATFORM_MACOS</DefineConstants>
    </PropertyGroup>

    <Target Name="ValidateSecRandomPlatformSelection" BeforeTargets="PrepareForBuild"
            Condition="'$(SecRandomPlatform)' != 'Windows' and '$(SecRandomPlatform)' != 'Linux' and '$(SecRandomPlatform)' != 'MacOs'">
        <Error Text="Unable to select a SecRandom desktop platform for RuntimeIdentifier '$(RuntimeIdentifier)'. Set SecRandomPlatform to Windows, Linux, or MacOs." />
    </Target>
</Project>