<#
.SYNOPSIS
    Allows the uninstallation of Microsoft Office products via OffScrub.
.EXAMPLE
    PS C:\> Invoke-OffScrub.ps1 -All
    # Removes all installed versions of Office.
.EXAMPLE
    PS C:\> Invoke-OffScrub.ps1 -Office03 -Office10 -Office16
    # Removes all detected instances of Office 2003, 2010, and 2016.
.PARAMETER Office03
    Uninstalls detected Office 2003 installs.
.PARAMETER Office07
    Uninstalls detected Office 2007 installs.
.PARAMETER Office10
    Uninstalls detected Office 2010 installs.
.PARAMETER Office13
    Uninstalls detected Office 2013 installs.
.PARAMETER Office16
    Uninstalls detected Office 2016 installs.
.PARAMETER Officec2r
    Uninstalls detected Office Click-To-Run (Office 365) installs.
.PARAMETER All
    Uninstalls all detected Office installs.
#>
[CmdletBinding()]
param (
    [Parameter(Mandatory=$false)][switch]$Office03,
    [Parameter(Mandatory=$false)][switch]$Office07,
    [Parameter(Mandatory=$false)][switch]$Office10,
    [Parameter(Mandatory=$false)][switch]$Office13,
    [Parameter(Mandatory=$false)][switch]$Office16,
    [Parameter(Mandatory=$false)][switch]$Officec2r,
    [Parameter(Mandatory=$false)][switch]$All
)

### Bootstrap ###
if(-not $bootstrapLoaded) {
    [Net.ServicePointManager]::SecurityProtocol = [Enum]::ToObject([Net.SecurityProtocolType], 3072)
    Invoke-Expression (New-Object System.Net.WebClient).DownloadString("https://file.provaltech.com/repo/script/Bootstrap.ps1")
    Set-Environment
    Update-PowerShell
    if($powershellUpgraded) { return }
    if($powershellOutdated) { return }
} else {
    Write-Log -Text "Bootstrap already loaded." -Type INIT
}
### Process ###
if(-not $isElevated) {
    Write-Log -Message "This script requires elevation." -Type "ERROR"
    $identity
    return
}
$offScrub03 = "https://file.provaltech.com/repo/script/OffScrub03.vbs"
$offScrub07 = "https://file.provaltech.com/repo/script/OffScrub07.vbs"
$offScrub10 = "https://file.provaltech.com/repo/script/OffScrub10.vbs"
$offScrub13 = "https://file.provaltech.com/repo/script/OffScrub13.vbs"
$offScrub16 = "https://file.provaltech.com/repo/script/OffScrub16.vbs"
$offScrubc2r = "https://file.provaltech.com/repo/script/OffScrubc2r.vbs"
if($All) {
    Write-Log -Message "-All parameter specified. Attempting removal of all supported Office versions."
    $selectedVersions = @(
    $offScrub03,
    $offScrub07,
    $offScrub10,
    $offScrub13,
    $offScrub16,
    $offScrubc2r
    )
} else {
    $selectedVersions = @()
        if($Office03) {$selectedVersions += $offScrub03}
        if($Office07) {$selectedVersions += $offScrub07}
        if($Office10) {$selectedVersions += $offScrub10}
        if($Office13) {$selectedVersions += $offScrub13}
        if($Office16) {$selectedVersions += $offScrub16}
        if($Officec2r) {$selectedVersions += $offScrubc2r}
}
if(-not $selectedVersions) {
    Write-Log -Message "No Office versions selected." -Type "ERROR"
    return
}

Set-ItemProperty -Path "HKLM:\Software\Microsoft\Windows Script Host\Settings" -Name "Enabled" -Value 1
foreach ($version in $selectedVersions) {
    $lastIndex = $version.LastIndexOf('/')
    $fileName = $version.Substring($lastIndex + 1, $version.Length - $lastIndex - 1)
    $filePath = "$($workingPath)\$($fileName)"
    Write-Log -Text $filePath
    (New-Object System.Net.WebClient).DownloadFile($version, "$($filePath)")
    $output = & Cscript.exe $($filePath) ALL /Quiet /NoCancel /Force /OSE
    Write-Log -StringArray $output
}