# PCS Toolkit - Office License Checker
# Detects Microsoft Office installation and license status

$timestamp = Get-Date -Format "yyyy-MM-dd_HH-mm-ss"
$outputFile = "$env:USERPROFILE\Desktop\OfficeLicense_$timestamp.txt"

function Log($msg) {
    Write-Host $msg
    Add-Content $outputFile $msg
}

Log "========================================"
Log "    PCS Toolkit - Office License Check"
Log "========================================"
Log "Generated: $(Get-Date)"
Log "Computer: $env:COMPUTERNAME"
Log ""

# Check for Office installations
Log "=== OFFICE INSTALLATION ==="
$officeFound = $false

# Check registry for Office version
$officeVersions = @(
    @{Key="HKLM:\SOFTWARE\Microsoft\Office\16.0\Common\InstallRoot"; Name="Office 2016/2019/365"},
    @{Key="HKLM:\SOFTWARE\Microsoft\Office\15.0\Common\InstallRoot"; Name="Office 2013"},
    @{Key="HKLM:\SOFTWARE\Microsoft\Office\14.0\Common\InstallRoot"; Name="Office 2010"},
    @{Key="HKLM:\SOFTWARE\WOW6432Node\Microsoft\Office\16.0\Common\InstallRoot"; Name="Office 2016/2019/365 (32-bit)"},
    @{Key="HKLM:\SOFTWARE\WOW6432Node\Microsoft\Office\15.0\Common\InstallRoot"; Name="Office 2013 (32-bit)"}
)

foreach ($ver in $officeVersions) {
    if (Test-Path $ver.Key) {
        $path = (Get-ItemProperty $ver.Key -EA SilentlyContinue).Path
        if ($path) {
            Log "Found: $($ver.Name)"
            Log "  Path: $path"
            $officeFound = $true
        }
    }
}

# Check for Microsoft 365 Apps
$m365 = Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Office\ClickToRun\Configuration" -EA SilentlyContinue
if ($m365) {
    Log ""
    Log "Microsoft 365 / Click-to-Run detected:"
    Log "  Version: $($m365.VersionToReport)"
    Log "  Channel: $($m365.CDNBaseUrl -replace '.*/', '')"
    Log "  Platform: $($m365.Platform)"
    Log "  Product IDs: $($m365.ProductReleaseIds)"
    $officeFound = $true
}

if (-not $officeFound) {
    Log "No Microsoft Office installation detected"
    Log ""
    Log "========================================"
    Log "CHECK COMPLETE - No Office Found"
    Log "========================================"
    explorer.exe "/select,$outputFile"
    Read-Host "Press Enter to exit"
    exit
}

Log ""
Log "=== LICENSE STATUS ==="

# Try ospp.vbs for traditional licensing
$osppPaths = @(
    "C:\Program Files\Microsoft Office\Office16\ospp.vbs",
    "C:\Program Files\Microsoft Office\Office15\ospp.vbs",
    "C:\Program Files (x86)\Microsoft Office\Office16\ospp.vbs",
    "C:\Program Files (x86)\Microsoft Office\Office15\ospp.vbs"
)

$osppFound = $false
foreach ($ospp in $osppPaths) {
    if (Test-Path $ospp) {
        Log "Using: $ospp"
        Log ""
        $result = cscript //nologo $ospp /dstatus 2>&1
        $result | ForEach-Object { Log $_ }
        $osppFound = $true
        break
    }
}

if (-not $osppFound) {
    # Check for Microsoft 365 subscription - with timeout
    Log "Checking WMI for license info (this may take a moment)..."
    
    $job = Start-Job -ScriptBlock {
        Get-CimInstance -ClassName SoftwareLicensingProduct -Filter "Name like 'Office%'" -EA SilentlyContinue |
            Where-Object { $_.PartialProductKey } |
            Select-Object Name, LicenseStatus, PartialProductKey
    }
    
    $completed = Wait-Job $job -Timeout 15
    
    if ($completed) {
        $licenses = Receive-Job $job
        Remove-Job $job -Force
        
        if ($licenses) {
            foreach ($lic in $licenses) {
                Log "Product: $($lic.Name)"
                Log "  License Status: $(switch($lic.LicenseStatus) { 0 {'Unlicensed'} 1 {'Licensed'} 2 {'OOBGrace'} 3 {'OOTGrace'} 4 {'NonGenuineGrace'} 5 {'Notification'} 6 {'ExtendedGrace'} default {'Unknown'} })"
                Log "  Partial Key: XXXXX-$($lic.PartialProductKey)"
                Log ""
            }
        } else {
            Log "No traditional license found"
            Log "Office is likely using Microsoft 365 subscription licensing"
            Log "(Sign in status managed by Microsoft account)"
        }
    } else {
        Stop-Job $job
        Remove-Job $job -Force
        Log "WMI license query timed out"
        Log "Office is likely using Microsoft 365 subscription licensing"
        Log "(Sign in status managed by Microsoft account)"
    }
}

Log ""
Log "========================================"
Log "CHECK COMPLETE"
Log "========================================"

explorer.exe "/select,$outputFile"
Read-Host "Press Enter to exit"