<#
Author: Gabe Kerntke
Date: 06-10-2024

.Synopsis
Script to install Java 32bit on machines that do not already have it or upgrade to the newest version if behind

.Modified
2024-06-10 (GabeK) - Original script created
2025-08-08 (GabeK) - Rebuilt to use functions script
#>

[CmdletBinding()]
Param(
    [Parameter(Mandatory = $false)]
    $App_Name = "Java 8 Update",
    [Parameter(Mandatory = $false)]
    $File_Name_Prefix = "jre-x32",
    [Parameter(Mandatory = $false)]
    $File_Name_Extension = "exe",
    [Parameter(Mandatory = $false)]
    $Install_Parameters = "/s REMOVEOLDERJRES=1",
    [Parameter(Mandatory = $false)]
    $EPCache_Folder = "3rd Party Patches\$App_Name",
    [Parameter(Mandatory = $false)]
    $File_Name = "$File_Name_Prefix-$Online_Version.$File_Name_Extension"
)
# Adjustable Variables
$mapXML = Invoke-RestMethod "https://javadl-esd-secure.oracle.com/update/1.8.0/map-1.8.0.xml" -UserAgent 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.85 Safari/537.36 Edg/90.0.818.46'

#Select latest build from entries marked as 'critical'
$target = ($mapXML.'java-update-map'.mapping | Where-Object { $_.critical -eq 1 } | Select-Object -Last 1)

$params = @{
    'Uri'         = [string]$target.url
    'ContentType' = 'application/xml'
    'UserAgent'   = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.85 Safari/537.36 Edg/90.0.818.46'
}
$javaXml = Invoke-RestMethod @params

#substituting the 'au' (automatic update) value in the url with the desired architecture.
$javaUpdateInfo = $javaXml.'java-update'.information
$DownloadURL = [string]($javaUpdateInfo.url) -replace '\-au', "-i586"

#finds latest version from online
$A = $DownloadURL.substring(115)
$B = $A.Substring(0, $A.Length - 27) 
$Online_Version = $B -replace ("U", ".")

#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 to see if program is installed
$Applist = Get-Software | Sort-Object -Descending

If ($Applist.DisplayName -like "*$App_Name*") { 

    #Get currently installed version 
    $A = Get-Software | Where-Object { $_.DisplayName -like "*$App_Name*"} | Select-Object -ExpandProperty DisplayVersion
    $B = $A.Substring(4)
    $Local_Version = "8." + $B.Substring(0, $B.Length - 3)
    
    #Comparing version already installed to what is online
    If ([version]$Local_Version -lt [version]$Online_Version) {
        Test-Probe_Online
        Close-App
        Install-App
    }
    Else { Write-Host "$App_Name already on latest version (Installed version: $Local_Version)" }
}

Else {
    Test-Probe_Online
    Install-App
}
#Region Script End