Write-Output "Installing OpenCL CPU platform"

$installer = "AMD-APP-SDKInstaller-v3.0.130.135-GA-windows-F-x64.exe"

Write-Output "Downloading OpenCL platform installer"
$ProgressPreference = "SilentlyContinue"  # progress bar bug extremely slows down download speed
Invoke-WebRequest -OutFile "$installer" -Uri "https://github.com/microsoft/LightGBM/releases/download/v2.0.12/$installer"

if (Test-Path "$installer") {
  Write-Output "Successfully downloaded OpenCL platform installer"
} else {
  Write-Output "Unable to download OpenCL platform installer"
  Write-Output "Setting EXIT"
  $host.SetShouldExit(-1)
  exit 1
}

# Install OpenCL platform from installer executable
Write-Output "Running OpenCL installer"
Invoke-Command -ScriptBlock { Start-Process "$installer" -ArgumentList '/S /V"/quiet /norestart /passive /log opencl.log"' -Wait }

$property = Get-ItemProperty -Path Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\OpenCL\Vendors
if ($property -eq $null) {
  Write-Output "Unable to install OpenCL CPU platform"
  Write-Output "OpenCL installation log:"
  Get-Content "opencl.log"
  Write-Output "Setting EXIT"
  $host.SetShouldExit(-1)
  exit 1
} else {
  Write-Output "Successfully installed OpenCL CPU platform"
  Write-Output "Current OpenCL drivers:"
  Write-Output $property
}