function Publish-Artifacts {
  [CmdletBinding()]
  param(
    [Parameter(Mandatory = $true)]
    [string]$OutputDir,

    [Parameter(Mandatory = $true)]
    [ValidateSet("smb", "scp")]
    [string]$Mode
  )

  if (-not (Test-Path -LiteralPath $OutputDir)) {
    throw "Output directory does not exist: $OutputDir"
  }

  switch ($Mode) {
    "smb" {
      if ([string]::IsNullOrWhiteSpace($env:DESTINATION_PATH)) {
        throw "DESTINATION_PATH is required for DEPLOY_MODE=smb"
      }

      New-Item -Path $env:DESTINATION_PATH -ItemType Directory -Force | Out-Null
      Copy-Item -Path (Join-Path $OutputDir "*") -Destination $env:DESTINATION_PATH -Recurse -Force
      Write-Host "Artifacts copied to SMB/local path: $($env:DESTINATION_PATH)"
    }

    "scp" {
      if ([string]::IsNullOrWhiteSpace($env:SCP_DESTINATION)) {
        throw "SCP_DESTINATION is required for DEPLOY_MODE=scp"
      }

      $scpCommand = Get-Command scp -ErrorAction SilentlyContinue
      if (-not $scpCommand) {
        throw "scp is not available on this runner. Install OpenSSH client or use DEPLOY_MODE=smb."
      }

      & scp -r (Join-Path $OutputDir "*") $env:SCP_DESTINATION
      if ($LASTEXITCODE -ne 0) {
        throw "scp publish failed with exit code $LASTEXITCODE"
      }

      Write-Host "Artifacts copied using SCP to: $($env:SCP_DESTINATION)"
    }
  }
}