public/Uninstall-Package.ps1

# It is required to implement this function for the providers that support UnInstall-Package.
function Uninstall-Package {
    [CmdletBinding()]
    param (
        [Parameter(Mandatory=$true)]
        [ValidateNotNullOrEmpty()]
        [string]
        $FastPackageReference
    )

    Write-Debug -Message ($LocalizedData.ProviderDebugMessage -f ('Uninstall-Package'))
    Write-Debug -Message ($LocalizedData.FastPackageReference -f $FastPackageReference)

    # If the fast package preference doesnt match the pattern we expect, throw an exception
    if ((-not ($FastPackageReference -match $script:FastReferenceRegex)) -or (-not ($Matches.name -and $Matches.version))) {
        ThrowError -ExceptionName "System.ArgumentException" `
            -ExceptionMessage ($LocalizedData.FailToUninstall -f $FastPackageReference) `
            -ErrorId 'FailToUninstall' `
            -ErrorCategory InvalidArgument
    }

    $chocoParams = @{
        Uninstall = $true
        Package = $Matches.name
        Version = $Matches.version
    }

    $swid = Invoke-Choco @chocoParams

    if (-not $swid) {
        # Invoke-Choco didn't throw an exception but we couldn't pull a Software Identity from the output.
        # The output format Choco.exe may have changed from what our regex pattern was expecting.
        Write-Warning ($LocalizedData.UnexpectedChocoResponse -f $FastPackageReference)
    }

    $swid
}