param([Parameter(Mandatory=$true)][string]$OutFile, [Parameter(Mandatory=$true)][string]$Work, [int]$HoldSeconds = 5)
$lines = New-Object System.Collections.Generic.List[string]
function L($s) { $lines.Add($s); [System.IO.File]::WriteAllLines($OutFile, $lines, (New-Object System.Text.UTF8Encoding($false))) }
L ("PSVersion: " + $PSVersionTable.PSVersion + "   CLR " + [System.Environment]::Version + "   Redirected=" + [Console]::IsOutputRedirected)
function Asm([string]$n) { return [AppDomain]::CurrentDomain.GetAssemblies() | Where-Object { $_.GetName().Name -eq $n } | Select-Object -First 1 }
function T([string]$n, [string]$a) { $x = Asm $a; if ($x) { return $x.GetType($n) } else { return $null } }
$isDesktop = ($PSVersionTable.PSEdition -eq 'Desktop')
$fx = if ($isDesktop) { 'net461' } else { 'netstandard2.0' }

L ""
L "############ A) Spectre.Console 0.49.1 with the COMPLETE System.Memory closure side-loaded ############"
$scOk = $false
try {
  $order = @(
    (Join-Path $Work "system.runtime.compilerservices.unsafe-4.5.3\lib\net461\System.Runtime.CompilerServices.Unsafe.dll"),
    (Join-Path $Work "system.buffers-4.5.1\lib\net461\System.Buffers.dll"),
    (Join-Path $Work "system.numerics.vectors-4.5.0\lib\net46\System.Numerics.Vectors.dll"),
    (Join-Path $Work "system.memory-4.5.5\lib\$fx\System.Memory.dll"),
    (Join-Path $Work "sc049\lib\netstandard2.0\Spectre.Console.dll")
  )
  L ("  host=$($PSVersionTable.PSEdition)  using System.Memory lib/$fx")
  foreach ($p in $order) {
    if (-not (Test-Path $p)) { throw "missing file: $p" }
    Add-Type -Path $p -ErrorAction Stop
    L ("    loaded $([System.IO.Path]::GetFileName($p))  v$(([System.Reflection.AssemblyName]::GetAssemblyName($p)).Version)  [$([System.IO.Path]::GetFileName([System.IO.Path]::GetDirectoryName($p)))]")
  }
  L "  ALL dependencies loaded."
  $ansiT  = T 'Spectre.Console.AnsiConsole'  'Spectre.Console'
  $tableT = T 'Spectre.Console.Table'        'Spectre.Console'
  $colT   = T 'Spectre.Console.TableColumn'  'Spectre.Console'
  $extT   = T 'Spectre.Console.TableExtensions' 'Spectre.Console'
  $t = [Activator]::CreateInstance($tableT)
  L "  new Spectre.Console.Table() -> OK"
  $t.AddColumn([Activator]::CreateInstance($colT, [object[]]@('项目 / Item')))
  $t.AddColumn([Activator]::CreateInstance($colT, [object[]]@('大小 / Size')))
  $t.AddColumn([Activator]::CreateInstance($colT, [object[]]@('状态 / Status')))
  $m = $extT.GetMethod('AddRow', [Type[]]@($tableT, [string[]]))
  $m.Invoke($null, [object[]]@($t, [string[]]@('中文备份归档 alpha', '1.2 GB', 'OK'))) | Out-Null
  $m.Invoke($null, [object[]]@($t, [string[]]@('beta', '340 MB', 'WARN'))) | Out-Null
  $m.Invoke($null, [object[]]@($t, [string[]]@('gamma-ascii', '2.0 GB', 'OK'))) | Out-Null
  Write-Host ""
  Write-Host ("  ===== Spectre.Console 0.49.1 (netstandard2.0) on PowerShell " + $PSVersionTable.PSVersion + " =====") -ForegroundColor Cyan
  $ansiT::Write($t)
  Write-Host ""
  $ansiT::Markup('[red]red[/] [green]green[/] [yellow]yellow[/] [bold]bold[/] [blue on white]reverse[/]')
  $ansiT::Markup('[grey]grey[/]  ' + [char]0x2713 + ' check  ' + [char]0x26A0 + ' warn')
  L "  AnsiConsole.Write(Table with CJK) + Markup colors + unicode symbols -> INVOKED, no exception"
  L ("  Table rendered width (SafeBorder default): rows=" + ($t.Rows.Count) + " cols=" + ($t.Columns.Count))
  $scOk = $true
  L "RESULT-A: SpectreConsole=WORKS"
} catch {
  L ("  FAILED: " + $_.Exception.GetType().Name + ': ' + $_.Exception.Message)
  $ie = $_.Exception.InnerException; while ($ie) { L ("     inner: " + $ie.GetType().Name + ': ' + ($ie.Message -split "`n")[0]); $ie = $ie.InnerException }
  L "RESULT-A: SpectreConsole=FAILED"
}

L ""
L "############ B) Terminal.Gui 1.15.0 - can the driver be hand-wired from PowerShell at all? ############"
try {
  Add-Type -Path (Join-Path $Work 'nstack111\lib\netstandard2.0\NStack.dll') -ErrorAction Stop
  Add-Type -Path (Join-Path $Work 'tg115\lib\net472\Terminal.Gui.dll') -ErrorAction Stop
  $tgAsm = Asm 'Terminal.Gui'
  $appT = $tgAsm.GetType('Terminal.Gui.Application')
  $drvT = $tgAsm.GetType('Terminal.Gui.NetDriver')
  $mlT  = $tgAsm.GetType('Terminal.Gui.IMainLoopDriver')
  $loopT = $tgAsm.GetType('Terminal.Gui.NetMainLoop')
  L ("  Application=" + [bool]$appT + "  NetDriver=" + [bool]$drvT + "  NetMainLoop=" + [bool]$loopT)
  L ("  Is NetMainLoop public? " + $loopT.IsPublic + "   (a PowerShell user cannot 'new' a non-public type without reflection)")
  foreach ($c in $loopT.GetConstructors([System.Reflection.BindingFlags]'Public,NonPublic,Instance')) {
    L ("    ctor " + $(if ($c.IsPublic) { 'PUBLIC' } else { 'internal' }) + ": NetMainLoop(" + (($c.GetParameters() | ForEach-Object { $_.ParameterType.Name + ' ' + $_.Name }) -join ', ') + ")")
  }
  $initM = $appT.GetMethod('Init', [Type[]]@($drvT, $mlT))
  $drv = [Activator]::CreateInstance($drvT)
  # build NetMainLoop via reflection on the internal ctor
  $ctor = $loopT.GetConstructors([System.Reflection.BindingFlags]'Public,NonPublic,Instance') | Select-Object -First 1
  $args = @()
  foreach ($p in $ctor.GetParameters()) {
    if ($p.ParameterType -eq $drvT) { $args += , $drv } elseif ($p.ParameterType -eq [bool]) { $args += , $true } else { $args += , $null }
  }
  $loop = $ctor.Invoke($args)
  L ("  NetMainLoop constructed via reflection: " + [bool]$loop)
  $initM.Invoke($null, @($drv, $loop)) | Out-Null
  L "  Application.Init(NetDriver, NetMainLoop) -> SUCCEEDED *** Terminal.Gui IS live on PowerShell " + $PSVersionTable.PSVersion + " ***"
  $winT = $tgAsm.GetType('Terminal.Gui.Window'); $lblT = $tgAsm.GetType('Terminal.Gui.Label'); $btnT = $tgAsm.GetType('Terminal.Gui.Button')
  $w = [Activator]::CreateInstance($winT, [object[]]@('BakNRet - Terminal.Gui on PS ' + $PSVersionTable.PSVersion))
  $l1 = [Activator]::CreateInstance($lblT, [object[]]@('Terminal.Gui 1.15.0 (net472)'))
  $l2 = [Activator]::CreateInstance($lblT, [object[]]@('CJK: 2 Chinese chars = 4 columns'))
  $b1 = [Activator]::CreateInstance($btnT, [object[]]@('OK'))
  $w.Add($l1); $w.Add($l2); $w.Add($b1)
  $w.X = 1; $w.Y = 1; $w.Width = 78; $w.Height = 9
  $l1.Y = 1; $l2.Y = 3; $b1.Y = 5; $b1.X = 2
  ($appT.GetProperty('Top')).SetValue($null, $w)
  ($appT.GetProperty('Current')).SetValue($null, $w)
  $w.SetFocus(); $w.Redraw($w.Bounds)
  $appT.GetMethod('Refresh', [Type[]]@()).Invoke($null, @()) | Out-Null
  L "  painted Window(78x9)+2 Labels+Button, holding " + $HoldSeconds + "s"
  Start-Sleep -Seconds $HoldSeconds
  $appT.GetMethod('Shutdown', [Type[]]@()).Invoke($null, @()) | Out-Null
  L "  Application.Shutdown() -> clean"
  L "RESULT-B: TerminalGui=WORKS"
} catch {
  L ("  FAILED: " + $_.Exception.GetType().Name + ': ' + $_.Exception.Message)
  $ie = $_.Exception.InnerException; while ($ie) { L ("     inner: " + $ie.GetType().Name + ': ' + ($ie.Message -split "`n")[0]); $ie = $ie.InnerException }
  L "RESULT-B: TerminalGui=FAILED"
}
if (-not [Console]::IsOutputRedirected) { Write-Host ""; Write-Host ("[done PS " + $PSVersionTable.PSVersion + "] closing in $HoldSeconds s") -ForegroundColor Yellow; Start-Sleep -Seconds $HoldSeconds }