# This script is hosted at https://get.vst76.cn for SHAONIAN697/Microsoft-Activation-Scripts.
$ErrorActionPreference = 'Stop'

if (-not $args) {
    Write-Host ''
    Write-Host 'Project: ' -NoNewline
    Write-Host 'https://github.com/SHAONIAN697/Microsoft-Activation-Scripts' -ForegroundColor Green
    Write-Host ''
}

& {
    $psv = (Get-Host).Version.Major

    try {
        [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
    }
    catch {}

    $urls = @(
        'https://get.vst76.cn/MAS/All-In-One-Version-KL/MAS_AIO.cmd',
        'https://raw.githubusercontent.com/SHAONIAN697/Microsoft-Activation-Scripts/master/MAS/All-In-One-Version-KL/MAS_AIO.cmd'
    )

    $tempFile = Join-Path $env:TEMP ("MAS_{0}.cmd" -f [guid]::NewGuid())
    $expectedHash = '9F57FEB447F441AB4734A528FC526512D96BA135050D3E25E7EA4574AECC552E'
    $downloaded = $false
    $errors = @()
    Write-Progress -Activity 'Downloading...' -Status 'Please wait'

    foreach ($url in $urls) {
        try {
            if ($psv -ge 3) {
                Invoke-WebRequest -Uri $url -OutFile $tempFile -UseBasicParsing
            }
            else {
                $client = New-Object Net.WebClient
                $client.DownloadFile($url, $tempFile)
            }

            $actualHash = (Get-FileHash -Path $tempFile -Algorithm SHA256).Hash
            if ($actualHash -ne $expectedHash) {
                throw "Integrity check failed for $url. Expected $expectedHash, received $actualHash."
            }

            $downloaded = $true
            break
        }
        catch {
            $errors += $_
            Remove-Item -LiteralPath $tempFile -Force -ErrorAction SilentlyContinue
        }
    }

    Write-Progress -Activity 'Downloading...' -Status 'Done' -Completed

    if (-not $downloaded) {
        foreach ($downloadError in $errors) {
            Write-Host "Error: $($downloadError.Exception.Message)" -ForegroundColor Red
        }
        throw 'Failed to retrieve MAS from all available mirrors.'
    }

    try {
        $env:ComSpec = "$env:SystemRoot\system32\cmd.exe"
        Start-Process -FilePath $env:ComSpec -ArgumentList "/c `"`"$tempFile`" -el $args`"" -Wait -Verb RunAs
    }
    finally {
        Remove-Item -LiteralPath $tempFile -Force -ErrorAction SilentlyContinue
    }
} @args