<#
Author: Gabe Kerntke
Date: 02-22-2024

.Synopsis

.Modified
2024-02-22 (GabeK) - Original script created
2025-08-06 (GabeK) - Updated to use functions script
#>

[CmdletBinding()]
Param(
    [Parameter(Mandatory = $false)]
    $App_Name = "Java 8 Update",
    [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"
)

Function Get-Java_URL {
    $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', "$Java_Version"
    Return $DownloadURL
}

Function Install-Java_64bit {
    $File_Name_Prefix = "jre-x64"
    $Java_Version = "-x64"
    $DownloadURL = Get-Java_URL
    $A = $DownloadURL.substring(115)
    $Online_Version = $A.Substring(0, $A.Length - 26) -replace ("-", "") -replace ("U", ".")
    . "C:\Temp\Script Cache\Functions.ps1"
    Test-Probe_Online
    Install-App
}

Function Install-Java_32bit {
    $File_Name_Prefix = "jre-x32"
    $Java_Version = "-i586"
    $DownloadURL = Get-Java_URL
    $A = $DownloadURL.substring(115)
    $Online_Version = $A.Substring(0, $A.Length - 26) -replace ("-", "") -replace ("U", ".")
    . "C:\Temp\Script Cache\Functions.ps1"
    Test-Probe_Online
    Install-App
}

#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*") { 
    $List = Write-Output ($Applist.DisplayName -like "$App_Name*")
    If ($List.Count -eq 2 -and $Applist.DisplayName -like "$App_Name*(64-bit)") {
        Write-Host "Both 32bit and 64bit versions of Java are installed"
        Close-App
        Uninstall-App_WMIobject
        Install-Java_64bit
        Install-Java_32bit
        Exit
    }
    If ($Applist.DisplayName -like "$App_Name*(64-bit)") {
        Write-Host "64bit version of Java is installed"
        Close-App
        Uninstall-App_WMIobject
        Install-Java_64bit
        Exit
    }
    If ($Applist.DisplayName -like "$App_Name*") {
        Write-Host "32bit version of Java is installed" 
        Close-App
        Uninstall-App_WMIobject
        Install-Java_32bit
    }
}
Else { Write-Host "Java is not installed, exiting." }
#Region Script End