<#
.SYNOPSIS
PowerShell script to get infomation of Microsoft Edge for Enterprise.

.DESCRIPTION
This script use non public of Microsoft Edge for Enterprise release infomation, and get available udpates information.

.INPUTS
The script takes Channel, Platform, Windows, Archtecture, Version.

.OUTPUTS
return table

.EXAMPLE
# Get download info of Microsoft Edge Stable current version for Windows x64.
.\get-msedgebiz.ps1 -Channel "Stable" -Platform "Windows" -Architecture "x64" -Version "Current"

.EXAMPLE
# Get download info of Microsoft Edge Stable current version for Windows x64 , and download it.
$result = .\get-msedgebiz.ps1 -Channel "Stable" -Platform "Windows" -Architecture "x64" -Version "Current"
$filename = Split-Path $result.Url -Leaf
curl.exe -L --fail --retry 3 --retry-delay 2 -o (Join-Path $env:userprofile\downloads  $filename) $result.Url
 or
$ProgressPreference = 'SilentlyContinue' ; Invoke-WebRequest -Uri $result.Url -OutFile (Join-Path $env:userprofile\downloads $filename) ; $ProgressPreference = 'Continue'

.NOTES 
This script is a sample. Use it at your own risk.

#>

param (
  [string]$Channel = "*",	#Dev|Beta|Stable|EdgeUpdate|Policy|*(default)
  [string]$Platform = "*",	#Windows|MacOS|Linux|*(default)
  [string]$Architecture = "*",	#x64|x86|arm64|*(default)
  [string]$Version = "*"	#Current|x.x.x.x|*(default)
)

$msedgebizapi = "https://edgeupdates.microsoft.com/api/products?view=enterprise"
$ret = Invoke-RestMethod -uri $msedgebizapi
$rows = foreach ($product in $ret) {
  foreach($release in $product.Releases) {
    foreach($artifact in $release.Artifacts) {
      [pscustomobject]@{
        Channel        = $product.Product
        Version        = $release.ProductVersion
        Platform       = $release.Platform
        Architecture   = $release.Architecture
        Url            = $artifact.Location
        Hash           = $artifact.Hash
        HashAlgorithm  = $artifact.HashAlgorithm
        SizeInBytes    = $artifact.SizeInBytes
        PublishedTime  = $release.PublishedTime
       }
    }
  }
}
if ($rows.Count -ne 0) {
  if ($Version -eq "Current") {
    $rows | Where { ($_.Channel -like $Channel) -and ($_.Platform -like $Platform) -and ($_.Architecture -like $Architecture) } |Sort-Object @{ Expression = { [version]$_.Version } } -Descending |Select-Object -First 1
  } else {
    $rows | Where { ($_.Channel -like $Channel) -and ($_.Platform -like $Platform) -and ($_.Architecture -like $Architecture) -and ($_.Version -like $Version)} |Sort-Object @{ Expression = { [version]$_.Version } } -Descending 
  }
} else {
  Write-Host "Error: something went wrong!"
}

<#
.SYNOPSIS
PowerShell script to get infomation of Microsoft Edge for Enterprise for Windows from Download Site (https://www.microsoft.com/en-us/edge/business/download) .

.DESCRIPTION
This script use Microsoft Edge for Enterprise download site source page, and get available udpates information.

.INPUTS
The script takes Architecture (x86/x64/arm64)

.OUTPUTS
return table

.EXAMPLE
# Get download info of Microsoft Edge Stable current version for Windows x64, x86 and arm64
.\get-msedgebizwin.ps1

.EXAMPLE
# Get download info of Microsoft Edge Stable current version for Windows x64 , and download it.
$result = .\ get-msedgebizwin.ps1 -Architecture "x64"
$downloadurl = $result.Url
$filename = $result.FileName
curl.exe -L --fail --retry 3 --retry-delay 2 -o (Join-Path $env:userprofile\downloads  $filename) $downloadurl
 or
$ProgressPreference = 'SilentlyContinue' ; Invoke-WebRequest -Uri$downloadurl -OutFile (Join-Path $env:userprofile\downloads $filename) ; $ProgressPreference = 'Continue'

.NOTES 
This script is a sample. Use it at your own risk.

#>
param (
  [string]$Architecture = "*"	#x64|x86|arm64|*(default)
)
$ret = Invoke-WebRequest -uri "https://www.microsoft.com/en-us/edge/business/download"
if ($ret.StatusCode -ne 200) {
  Write-Host "Error: HTTP Error"
  return
}
$html = $ret.Content

$pattern = '"(?<version>\d+\.\d+\.\d+\.\d+)"\s*,\s*"(?<url>https:[^"]*MicrosoftEdgePolicyTemplates\.cab)"'

$vers = [regex]::Matches($html, $pattern)|
  ForEach-Object {
    [pscustomobject]@{
      Version = "$($_.Groups['version'].Value)"
      Url      = $_.Groups['url'].Value
    }
  }

$currentver = ($vers | Select-Object -First 1).Version

$pattern = '"windows-(?<arch>x64|x86|arm64)"\s*,\s*"(?<url>https:[^"]+?\.msi)"'

$urls = [regex]::Matches($html, $pattern) |
  ForEach-Object {
    [pscustomobject]@{
      Version  = $currentver
      Architecture = $_.Groups['arch'].Value
      FileName = (Split-Path ($_.Groups['url'].Value) -Leaf)
      Url      = $_.Groups['url'].Value
    }
  }

$urls | Where { $_.Architecture -like $Architecture }