IntunePRInventory

#"StartTime:$(Get-Date)"

Function Get-PRCustomInventory {
    # Define and clear variables
        $AllPRInv = $null
        $AllPRInv = @()
        $jsonBlob = $null
        $ComputerName = (Get-CimInstance -Class Win32_ComputerSystem).Name
        $SerialNumber = (Get-CimInstance -Class Win32_ComputerSystemProduct).IdentifyingNumber
        $Manufacturer = (Get-CimInstance -Class Win32_ComputerSystem).Manufacturer
        foreach ($Variable in (Get-Variable -Name 'PRInv_*'))
        {
            $Variable = $null
        }

        $PRInv_WMI_Win32_ComputerSystem = @{
            "WMI_Win32_ComputerSystem" = @(
                $(Get-CimInstance -Class Win32_ComputerSystem -ErrorAction SilentlyContinue | select @{Name = 'SN'; Expression = {$SerialNumber}},Name,Manufacturer,Model,Domain,UserName,WORKGROUP)
            )
        }

        $PRInv_WMI_Win32_ComputerSystemProduct = @{
            "WMI_Win32_ComputerSystemProduct" = @(
                $(Get-CimInstance -Class Win32_ComputerSystemProduct -ErrorAction SilentlyContinue | select @{Name = 'SN'; Expression = {$SerialNumber}},Version)
            )
        }

        $PRInv_WMI_Win32_SystemEnclosure = @{
            "WMI_Win32_SystemEnclosure" = @(
                $AssetTag = (Get-CimInstance -Class Win32_SystemEnclosure -ErrorAction SilentlyContinue).SMBIOSAssetTag
                if(-not ([string]::IsNullOrEmpty($AssetTag)) -and -not ($AssetTag -match 'No '))
                {
                    $(Get-CimInstance -Class Win32_SystemEnclosure -ErrorAction SilentlyContinue | select @{Name = 'SN'; Expression = {$SerialNumber}},SMBIOSAssetTag)
                }
                else
                {

                }
            )
        }

        $PRInv_WMI_Win32_OperatingSystem = @{
            "WMI_Win32_OperatingSystem" = @(
                $(Get-CimInstance -Class Win32_OperatingSystem -ErrorAction SilentlyContinue | select @{Name = 'SN'; Expression = {$SerialNumber}},Version,Caption,OperatingSystemSKU,OSArchitecture,SystemDrive)
            )
        }

        $PRInv_Reg_OSUpgradeCompat_Win11 = @{
            "Reg_OSUpgradeCompat_Win11" = @(
                $(
                    if(Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\TargetVersionUpgradeExperienceIndicators\NI22H2" -ErrorAction SilentlyContinue)
                    {
                        $OSUpgradeCompat = Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\TargetVersionUpgradeExperienceIndicators\NI22H2"
                        $OSUpgradeCompatReason = $null
                        $OSUpgradeCompat.RedReason | foreach {$OSUpgradeCompatReason += "$_,"}
                        $OSUpgradeCompat | select @{Name = 'SN'; Expression = {$SerialNumber}},@{Name = 'Compat'; Expression = {$OSUpgradeCompat.UpgEx}},@{Name = 'Reason'; Expression = {$OSUpgradeCompatReason}}
                    }
                    elseif(Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\TargetVersionUpgradeExperienceIndicators\CO21H2" -ErrorAction SilentlyContinue)
                    {
                        $OSUpgradeCompat = Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\TargetVersionUpgradeExperienceIndicators\CO21H2"
                        $OSUpgradeCompatReason = $null
                        $OSUpgradeCompat.RedReason | foreach {$OSUpgradeCompatReason += "$_,"}
                        $OSUpgradeCompat | select @{Name = 'SN'; Expression = {$SerialNumber}},@{Name = 'Compat'; Expression = {$OSUpgradeCompat.UpgEx}},@{Name = 'Reason'; Expression = {$OSUpgradeCompatReason}}
                    }
                    else
                    {

                    }
                )
            )
        }

        $PRInv_Reg_Office_License = @{
            "Reg_Office_License" = @(
                $(
                    if(Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Office\ClickToRun\Configuration" -Name 'SharedComputerLicensing' -ErrorAction SilentlyContinue)
                    {
                        $Shared_Computer_Activation = (Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Office\ClickToRun\Configuration" -Name 'SharedComputerLicensing').SharedComputerLicensing
                        $ProductReleaseIds = (Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Office\ClickToRun\Configuration" -Name 'ProductReleaseIds').ProductReleaseIds
                        $DeviceBasedLicensing = (Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Office\ClickToRun\Configuration" -Name 'O365ProPlusRetail.DeviceBasedLicensing').'O365ProPlusRetail.DeviceBasedLicensing'
                        if($Shared_Computer_Activation -eq 1)
                        {
                            $true | select @{Name = 'SN'; Expression = {$SerialNumber}},@{Name = 'LicenseType'; Expression = {'O365Shared'}}
                        }
                        elseif ($DeviceBasedLicensing -eq 1)
                        {
                            $true | select @{Name = 'SN'; Expression = {$SerialNumber}},@{Name = 'LicenseType'; Expression = {'O365Device'}}
                        }
                        elseif ($ProductReleaseIds -match 'O365ProPlusRetail')
                        {
                            $true | select @{Name = 'SN'; Expression = {$SerialNumber}},@{Name = 'LicenseType'; Expression = {'O365User'}}
                        }
                        else
                        {
                            $true | select @{Name = 'SN'; Expression = {$SerialNumber}},@{Name = 'LicenseType'; Expression = {"KMSorOther-$ProductReleaseIds"}}
                        }
                    }
                    else
                    {

                    }
                )
            )
        }

        $PRInv_WMI_Win32_LogicalDisk = @{
            "WMI_Win32_LogicalDisk" = @(
                $(Get-CimInstance -Class Win32_LogicalDisk -ErrorAction SilentlyContinue | where {$_.DeviceID -eq $PRInv_WMI_Win32_OperatingSystem.WMI_Win32_OperatingSystem.SystemDrive} | select @{Name = 'SN'; Expression = {$SerialNumber}},Size,FreeSpace)
            )
        }

        $PRInv_WMI_Win32_Processor = @{
            "WMI_Win32_Processor" = @(
                $(Get-CimInstance -Class Win32_Processor -ErrorAction SilentlyContinue | select @{Name = 'SN'; Expression = {$SerialNumber}},Name,NumberOfCores)
            )
        }

        <# $PRInv_WMI_Win32_PhysicalMemory = @{
            "WMI_Win32_PhysicalMemory" = @(
                $(Get-CimInstance -Class Win32_PhysicalMemory -ErrorAction SilentlyContinue | select @{Name = 'SN'; Expression = {$SerialNumber}},Capacity)
            )
        } #>

        $PRInv_WMI_Win32_NetworkAdapter = @{
            "WMI_Win32_NetworkAdapter" = @(
                $(Get-CimInstance -Class Win32_NetworkAdapter -ErrorAction SilentlyContinue | where {($_.PhysicalAdapter -eq $true) -and ($_.Name -notmatch 'anyconnect') -and ($_.Name -notmatch 'bluetooth') -and ($_.Name -notmatch 'vpn')} | select @{Name = 'SN'; Expression = {$SerialNumber}},Index)
            )
        }

        $PRInv_WMI_Win32_NetworkAdapterConfiguration = @{
            "WMI_Win32_NetworkAdapterConfiguration" = @(
                $(Get-CimInstance -Class Win32_NetworkAdapterConfiguration -ErrorAction SilentlyContinue | foreach{foreach($Index in $PRInv_WMI_Win32_NetworkAdapter.WMI_Win32_NetworkAdapter.Index){if($_.Index -eq $Index){$_ | select @{Name = 'SN'; Expression = {$SerialNumber}},Description,IPAddress,MACAddress}}})
            )
        }

        if($Manufacturer -match 'lenovo')
        {
            $Warranty = $null
            (Get-CimInstance -Namespace root/Lenovo -ClassName Lenovo_WarrantyInformation -ErrorAction SilentlyContinue | select -ExpandProperty warranty | foreach {
                $Warranty += "$($_.ID);"}
            )
            $PRInv_WMI_Lenovo_WarrantyInformation = @{
                "WMI_Lenovo_WarrantyInformation" = @(
                    $(Get-CimInstance -Namespace root/Lenovo -ClassName Lenovo_WarrantyInformation -ErrorAction SilentlyContinue | select @{Name = 'SN'; Expression = {$SerialNumber}},@{Name = 'Warranty'; Expression = {$Warranty.trim(';')}},StartDate,EndDate)
                )
            }
        }

        if($Manufacturer -match 'Dell')
        {
            $PRInv_WMI_Dell_WarrantyInformation = @{
                "WMI_Dell_WarrantyInformation" = @(
                    $(Get-CimInstance -Namespace root/DCIM/SYSMAN -ClassName DCIM_AssetWarrantyInformation -ErrorAction SilentlyContinue | foreach {$_ | select @{Name = 'SN'; Expression = {$SerialNumber}},Name,WarrantyStartDate,WarrantyEndDate})
                )
            }
        }

        $PRInv_WinEvent_Last_Login_User = @{
            "WinEvent_Last_Login_User" = @(
                $(Get-WinEvent -FilterHashtable @{Logname='Security';ID=4672} | Where-Object {-not(($_.Properties[0].Value -like  "S-1-5-18") -or ($_.Properties[0].Value -like  "S-1-5-19") -or ($_.Properties[0].Value -like  "S-1-5-20"))} | select -first 1 @{Name = 'SN'; Expression = {$SerialNumber}},@{N='User';E={$_.Properties[1].Value}})
            )
        }

    # Add all custom inventories to a variable and return json
        foreach ($Variable in (Get-Variable -Name 'PRInv_*'))
        {
            $AllPRInv += $Variable.Value
        }

        $AllPRInv | ConvertTo-Json -Compress -Depth 20
}

    # Check if script has been run today and just return dumped result to avoid any additional processing on the machine
    if (Test-Path -Path 'HKLM:\SOFTWARE\PRInv\PRInv - Intune Custom Inventory')
    {
        if (Get-ItemProperty -Path 'HKLM:\SOFTWARE\PRInv\PRInv - Intune Custom Inventory' -Name 'LastRunDate' -ErrorAction SilentlyContinue)
        {
            $script:LastRunDate = Get-ItemProperty -Path 'HKLM:\SOFTWARE\PRInv\PRInv - Intune Custom Inventory' -Name 'LastRunDate' | select -ExpandProperty LastRunDate
            if ([datetime]$LastRunDate -ge (Get-Date -Hour 0 -Minute 0 -Second 0))
            {
                if(Get-ItemProperty -Path 'HKLM:\SOFTWARE\PRInv\PRInv - Intune Custom Inventory' -Name 'LastOutput' -ErrorAction SilentlyContinue)
                {
                    $script:LastOutput = Get-ItemProperty -Path 'HKLM:\SOFTWARE\PRInv\PRInv - Intune Custom Inventory' -Name 'LastOutput' | select -ExpandProperty LastOutput
                    $script:RunScriptNow = $false
                }
                else
                {
                    $script:RunScriptNow = $true
                }
            }
            else
            {
                $script:RunScriptNow = $true
            }
        }
        else
        {
            $script:RunScriptNow = $true
        }
    }
    else
    {
        $script:RunScriptNow = $true
    }

if($script:RunScriptNow -eq $true)
{
    # Convert to JSON and return result
    $jsonBlob = Get-PRCustomInventory

    # Add Registry LastRunDate for Detection
    if (-not(Test-Path -Path 'HKLM:\SOFTWARE\PRInv\PRInv - Intune Custom Inventory'))
    {
        New-Item -Path 'HKLM:\SOFTWARE\PRInv\PRInv - Intune Custom Inventory' -Force | Out-Null
    }

    New-ItemProperty -Path 'HKLM:\SOFTWARE\PRInv\PRInv - Intune Custom Inventory' -Name 'LastRunDate' -PropertyType string -Value $(Get-Date) -Force | Out-Null
    New-ItemProperty -Path 'HKLM:\SOFTWARE\PRInv\PRInv - Intune Custom Inventory' -Name 'LastOutput' -PropertyType string -Value $jsonBlob -Force | Out-Null
}
else
{
    $jsonBlob = $script:LastOutput
}

# return result and exit
    $jsonBlob
    #"EndTime:$(Get-Date)"
    exit 0