$Platform = "Windows"
if ((Get-WmiObject win32_operatingsystem).osarchitecture -eq "64-Bit")
{
    $Architecture = "x64"
    $EdgeMSI = join-path $env:temp\edgeinstall MicrosoftEdgeEnterpriseX64.msi
}
else
{
    $Architecture = "x86"
    $EdgeMSI = join-path $env:temp\edgeinstall MicrosoftEdgeEnterpriseX86.msi
}
mkdir -Path $env:temp\edgeinstall -erroraction SilentlyContinue | Out-Null
$DownloadFolder = "$env:temp\edgeinstall"
$edgeEnterpriseMSIUri = 'https://edgeupdates.microsoft.com/api/products?view=enterprise'

$ErrorActionPreference = "Stop"

$response = Invoke-WebRequest -Uri $edgeEnterpriseMSIUri -Method Get -ContentType "application/json" -UseBasicParsing -ErrorVariable InvokeWebRequestError
$jsonObj = ConvertFrom-Json $([String]::new($response.Content))

#Download Latest Stable Version
$selectedIndexStable = [array]::indexof($jsonObj.Product, "Stable")

$latestVersion = (([Version[]](($jsonObj[$selectedIndexStable].Releases |
Where-Object { $_.Architecture -eq $Architecture -and $_.Platform -eq $Platform }).ProductVersion) |
Sort-Object -Descending)[0]).ToString(4)
Write-Host "Latest Stable Version for Edge is $latestVersion" -ForegroundColor Green

$selectedObject = $jsonObj[$selectedIndexStable].Releases | 
Where-Object { $_.Architecture -eq $Architecture -and $_.Platform -eq $Platform -and $_.ProductVersion -eq $latestVersion }

foreach ($artifacts in $selectedObject.Artifacts) {
    # Not showing the progress bar in Invoke-WebRequest is quite a bit faster than default
    $ProgressPreference = 'SilentlyContinue'
    
    Write-host "Starting download of: $($artifacts.Location)" -ForegroundColor Green
    # Work out file name
    $fileName = Split-Path $artifacts.Location -Leaf

    Write-host "Writing File to: $DownloadFolder\$fileName`n" -ForegroundColor Green
    Invoke-WebRequest -Uri $artifacts.Location -OutFile "$DownloadFolder\$fileName" -UseBasicParsing
}

#Download Latest Policy Version
$selectedIndexPolicy = [array]::indexof($jsonObj.Product, "Policy")

$latestVersion = (([Version[]](($jsonObj[$selectedIndexPolicy].Releases |
Where-Object { $_.Architecture -eq "Any" -and $_.Platform -eq "Any" }).ProductVersion) |
Sort-Object -Descending)[0]).ToString(4)
Write-Host "Latest Policy Version for Edge is $latestVersion" -ForegroundColor Green

$selectedObject = $jsonObj[$selectedIndexPolicy].Releases | 
Where-Object { $_.Architecture -eq "Any" -and $_.Platform -eq "Any" -and $_.ProductVersion -eq $latestVersion }

foreach ($artifacts in $selectedObject.Artifacts) {
    # Not showing the progress bar in Invoke-WebRequest is quite a bit faster than default
    $ProgressPreference = 'SilentlyContinue'
    
    Write-host "Starting download of: $($artifacts.Location)" -ForegroundColor Green
    # Work out file name
    $fileName = Split-Path $artifacts.Location -Leaf

    Write-host "Writing File to: $DownloadFolder\$fileName" -ForegroundColor Green
    Invoke-WebRequest -Uri $artifacts.Location -OutFile "$DownloadFolder\$fileName" -UseBasicParsing
}

Write-host "`nInstalling Latest Version of Microsoft Edge" -ForegroundColor Green
Start-Process "$EdgeMSI" -ArgumentList "/quiet"

# Extract the Edge Policy Files
$EdgePolicyZip = join-path $env:temp\edgeinstall MicrosoftEdgePolicyTemplates.zip
mkdir -Path $env:temp\edgeinstall\MicrosoftEdgePolicyTemplates -erroraction SilentlyContinue | Out-Null
Expand-Archive -Path "$EdgePolicyZip" -DestinationPath "$env:temp\edgeinstall\MicrosoftEdgePolicyTemplates" -Force

#Copy Edge Policy Files to correct directory
Write-host "Copying Policy Files to correct directory" -ForegroundColor Green
Copy-Item "$env:temp\edgeinstall\MicrosoftEdgePolicyTemplates\windows\admx\msedge.admx" -Destination "C:\Windows\PolicyDefinitions\" -Force -PassThru
Get-ChildItem "$env:temp\edgeinstall\MicrosoftEdgePolicyTemplates\windows\admx\en-us\" -Filter *.adml | Copy-Item -Destination "C:\Windows\PolicyDefinitions\en-US\" -Force -PassThru

#Register the sitelist
Write-host "Register Internet Explorer Integration SiteList" -ForegroundColor Green
$registryPath = "HKLM:\SOFTWARE\Policies\Microsoft\Edge"
$ieilName = "InternetExplorerIntegrationLevel"
$ieilvalue = "1"
$ieislName = "InternetExplorerIntegrationSiteList"
$ieislvalue = "https://saas.harmonyis.net/embedded/sams/sitelist.xml"

IF(!(Test-Path $registryPath))
{
    New-Item -Path $registryPath -Force | Out-Null
    New-ItemProperty -Path $registryPath -Name $ieilName -Value $ieilvalue -PropertyType DWORD -Force | Out-Null
	New-ItemProperty -Path $registryPath -Name $ieislName -Value $ieislvalue -PropertyType String -Force | Out-Null
}
ELSE
{
    New-ItemProperty -Path $registryPath -Name $ieilName -Value $ieilvalue -PropertyType DWORD -Force | Out-Null
	New-ItemProperty -Path $registryPath -Name $ieislName -Value $ieislvalue -PropertyType String -Force | Out-Null
}

Write-Host "-- Script Completed --" -ForegroundColor Green