Select-Plugins.ps1

<#
.NOTES
  Select-Plugins.ps1

  Selectively enable / disable vCheck plugins from a cross-platform console menu.

  vCheck 9 is PowerShell 7 only; the previous Windows Forms picker has been removed
  in favour of a console menu that works on Windows, Linux and macOS.

  Disabled plugins are renamed <pluginname>.ps1.disabled
  Enabled plugins are renamed <pluginname>.ps1

  Based on the original Select-Plugins by Phil Randal / Kevin Kirkpatrick.
#>

[cmdletbinding()]
param()

$Title = "Plugin Selection Plugin"
$Author = "Phil Randal"
$PluginVersion = 3.0
$Header =  "Plugin Selection"
$Comments = "Plugin Selection"
$Display = "None"

# Start of Settings
# End of Settings

$PluginPath = (Split-Path ((Get-Variable MyInvocation).Value).MyCommand.Path)
If ($PluginPath -notmatch 'plugins$') {
  $PluginPath = Join-Path $PluginPath "Plugins"
}
$plugins = Get-ChildItem -Path $PluginPath -Include *.ps1, *.ps1.disabled -Recurse |
   Sort-Object { [int]($_.Name -replace '\D') } |
   Select-Object FullName, Name,
          @{Label = "Plugin"; expression = { $_.Name -replace '(.*)\.ps1(?:\.disabled|)$', '$1' } },
          @{Label = "Enabled"; expression = { $_.Name -notmatch '.*\.disabled$' } }

if (-not $plugins) { Write-Warning "No plugins found under $PluginPath"; return }

# Track desired enabled-state per plugin
$state = [System.Collections.Generic.List[bool]]::new()
foreach ($p in $plugins) { $state.Add([bool]$p.Enabled) }

function Show-PluginMenu {
  Write-Host ""
  for ($i = 0; $i -lt $plugins.Count; $i++) {
    $mark = if ($state[$i]) { "[x]" } else { "[ ]" }
    Write-Host ("{0,4}  {1} {2}" -f ($i + 1), $mark, $plugins[$i].Plugin)
  }
  Write-Host ""
  Write-Host "Toggle by number (e.g. '3 5 10' or a range '3-8'); 'a'=all on, 'n'=all off, Enter=apply, 'q'=cancel"
}

while ($true) {
  Show-PluginMenu
  $in = (Read-Host "Selection").Trim()
  if ($in -eq 'q') { Write-Warning "Cancelled - no changes made."; return }
  if ($in -eq '') { break }
  if ($in -eq 'a') { for ($i = 0; $i -lt $state.Count; $i++) { $state[$i] = $true }; continue }
  if ($in -eq 'n') { for ($i = 0; $i -lt $state.Count; $i++) { $state[$i] = $false }; continue }
  foreach ($tok in ($in -split '[,\s]+' | Where-Object { $_ })) {
    if ($tok -match '^(\d+)-(\d+)$') {
      $a = [int]$Matches[1]; $b = [int]$Matches[2]
      for ($n = $a; $n -le $b; $n++) { if ($n -ge 1 -and $n -le $state.Count) { $state[$n - 1] = -not $state[$n - 1] } }
    }
    elseif ($tok -match '^\d+$') {
      $n = [int]$tok; if ($n -ge 1 -and $n -le $state.Count) { $state[$n - 1] = -not $state[$n - 1] }
    }
  }
}

# Apply: rename files whose enabled-state changed
$changed = 0
for ($i = 0; $i -lt $plugins.Count; $i++) {
  $oldname = $plugins[$i].Name
  $newname = $plugins[$i].Plugin + $(if ($state[$i]) { '.ps1' } else { '.ps1.disabled' })
  if ($newname -ne $oldname) {
    $dir = $plugins[$i].FullName | Split-Path
    if (Test-Path (Join-Path $dir $newname)) {
      Write-Warning "Cannot rename `"$oldname`" to `"$newname`" - target already exists. Skipping."
    }
    else {
      Rename-Item (Join-Path $dir $oldname) $newname
      $changed++
    }
  }
}
Write-Host "$changed plugin(s) updated."