<#
Author: Gabe Kerntke
Date: 02-18-2025

.Synopsis

.Modified
2025-02-18 (GabeK) - Original script created
2025-07-01 (GabeK) - Script updated to use version 5.5 and use functions script
#>

# Variables #
$App_Name = "Dell Command"
$File_Name_Prefix = "Dell-Command-x64"
$File_Name_Extension = "exe"
$Install_Parameters = "/s"
$EPCache_Folder = "3rd Party Patches\$App_Name"
$Version_URL = (Invoke-WebRequest -UseBasicParsing "https://www.dell.com/support/kbdoc/en-us/000177325/dell-command-update").Content | Select-String -Pattern '<td(.*?)</td>' -AllMatches | 
ForEach-Object { $_.Matches } | ForEach-Object { $_.Groups[1].Value } | Select-Object -First 1
$A = $Version_URL.Substring(30)
$Online_Version = $A.Substring(0, $A.Length - 10) -replace "[^\d*\.?\d*$/]" , '' -replace "/" , ""
$DownloadURL = "https://downloads.dell.com/FOLDER13309588M/1/Dell-Command-Update-Windows-Universal-Application_C8JXV_WIN64_5.5.0_A00.EXE"
$File_Name = "$File_Name_Prefix-$Online_Version.$File_Name_Extension"
$Manufacturer = (Get-CimInstance Win32_ComputerSystem).Manufacturer

# Functions #

Function Initialize-Commands {
    .\dcu-cli.exe /scan
    .\dcu-cli.exe /applyUpdates -silent
    $BLinfo = Get-Bitlockervolume
    If ($blinfo.ProtectionStatus -eq 'On' -and $blinfo.EncryptionPercentage -eq '100') {
        Manage-bde -Protectors -Disable C: -RebootCount 1
    }
    Restart-Computer -Force
}

Function Invoke-Commands {
    If (Test-Path "C:\Program Files\Dell\CommandUpdate\") {
        Set-Location "C:\Program Files\Dell\CommandUpdate\"
        Initialize-Commands
    }
    ElseIf (Test-Path "C:\Program Files (x86)\Dell\CommandUpdate\") {
        Set-Location "C:\Program Files (x86)\Dell\CommandUpdate\"
        Initialize-Commands
    }
    Else { Write-Host "Dell Command Update isn't installed, trying running the script again." }
}

Function Uninstall-App {
    $Uninstall = Get-WmiObject Win32_Product -filter "name like '$App_Name%'" | ForEach-Object { $_.Uninstall() }
    $Value = $Uninstall | Select-Object -ExpandProperty ReturnValue
    
    If ($Value -eq "0") {
        Write-Host "$App_Name uninstalled successfully, please rerun script to continue."
        $BLinfo = Get-Bitlockervolume
        If ($blinfo.ProtectionStatus -eq 'On' -and $blinfo.EncryptionPercentage -eq '100') {
            Manage-bde -Protectors -Disable C: -RebootCount 1
        }
        Restart-Computer -Force
    }
    Else {
        Write-Host "Failed to uninstall $App_Name, exiting script"
        Exit
    }
}

Function Install-dot_net {
    Invoke-WebRequest -UseBasicParsing "https://builds.dotnet.microsoft.com/dotnet/WindowsDesktop/8.0.17/windowsdesktop-runtime-8.0.17-win-x64.exe" -OutFile "C:\Temp\windowsdesktop-runtime-8.0.17-win-x64.exe"
    Start-Process "C:\Temp\Script Cache\windowsdesktop-runtime-8.0.17-win-x64.exe" -ArgumentList "/install /quiet /norestart"
    Start-Sleep 15
    Remove-Item "C:\Temp\Script Cache\windowsdesktop-runtime-8.0.17-win-x64.exe" -Force
}

#Region Script Start
If ((Test-Path "C:\Temp\Script Cache") -eq $False) { New-Item -ItemType directory -Path "C:\Temp\Script Cache" }
Invoke-WebRequest -UseBasicParsing "https://scripts.gabesville.com/Gabesville/Powershell-Scripts/raw/branch/main/Functions%20Scripts/Functions.ps1" -outfile "C:\Temp\Script Cache\Functions.ps1"
. "C:\Temp\Script Cache\Functions.ps1"

#Check if device is a dell
If ($Manufacturer -eq "Dell Inc.") {
    #Check to see if program is installed
    $Applist = Get-Software | Sort-Object -Descending

    If ($Applist.DisplayName -like "*$App_Name*") { 
        #Get currently installed version 
        $Local_Version = Get-Software | Where-Object { $_.DisplayName -like "*$App_Name*" } | Select-Object -ExpandProperty DisplayVersion

        #Comparing version already installed to what is online
        If ($Local_Version -lt $Online_Version) {
            Close-App
            Uninstall-App
        }
        Else { Invoke-Commands }
    }
    Else { 
        Install-dot_net
        Test-Probe_Online
        Install-App
        Invoke-Commands
    }
}
Else { Write-Host "Device is not a Dell: $Manufacturer" }
#Region End Script