# Copyright (c) 2026, R. W. Rodolico
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# windows_storage.ps1
# Fixed local disks (diskinfo.<letter>), sizes in KiB as Unix df.
# Sensor contract: unix/sensors/Documentation/README.md; keys: Documentation/Spec.md 7.6
# Must stay Windows PowerShell 5.1 compatible and pure ASCII.
#
# Version 1.0.0 20261018 Claude
# Initial version (bug 211, stage W2)

Import-Module ([IO.Path]::Combine($PSScriptRoot, '..', 'lib', 'SysinfoSensor.psm1'))
Test-SysinfoWindows

Invoke-SysinfoSensor {
   if ($null -eq (Get-Command Get-CimInstance -ErrorAction SilentlyContinue)) {
      Exit-SysinfoSensor -Code $SYSINFO_EXIT_NOT_APPLICABLE -Message 'Get-CimInstance not available'
   }
   foreach ($disk in @(Get-CimInstance -ClassName Win32_LogicalDisk -Filter 'DriveType = 3' -ErrorAction Stop)) {
      $letter = [string]$disk.DeviceID
      if ($letter -eq '' -or $null -eq $disk.Size) { continue }
      $size = [math]::Floor([double]$disk.Size / 1024)
      $used = [math]::Floor(([double]$disk.Size - [double]$disk.FreeSpace) / 1024)
      Write-SysinfoFact -Path @('diskinfo', $letter, 'fstype') -Value $disk.FileSystem
      Write-SysinfoFact -Path @('diskinfo', $letter, 'size') -Value ([int64]$size)
      Write-SysinfoFact -Path @('diskinfo', $letter, 'used') -Value ([int64]$used)
      Write-SysinfoFact -Path @('diskinfo', $letter, 'mount') -Value ($letter + '\')
   }
}