$ErrorActionPreference = "Stop"

$os = "win-x64"
$version = "10.4.4"
$hashUrl = "https://raw.githubusercontent.com/acitd/hash/refs/heads/main/stylezero/$version/$os-sha256"
$hash = Invoke-RestMethod -Uri $hashUrl

$url = "https://hub.stylezero.org/dist/stylezero/$version/stylezero-$version-$os.tar.xz"
$tmp = "$env:TEMP\tmp-stylezero-$PID.tar.xz"
$installDir = "$env:LOCALAPPDATA\Programs\stylezero"
$exePath = "$installDir\stylezero.exe"

Invoke-WebRequest -Uri $url -OutFile $tmp

$computedHash = Get-FileHash -Path $tmp -Algorithm SHA256 | Select-Object -ExpandProperty Hash
if ($computedHash -ne $hash.ToUpper()) {
	Write-Error "Hash mismatch. Aborting."
	Remove-Item $tmp -Force
	return
}

if (-not (Get-Command tar -ErrorAction SilentlyContinue)) {
	Write-Error "Missing 'tar'. Please install it or use Windows 10+ with tar support."
	Remove-Item $tmp -Force
	return
}

New-Item -ItemType Directory -Force -Path $installDir | Out-Null
tar -xJf $tmp -C $installDir
Remove-Item $tmp -Force

$userPath = [Environment]::GetEnvironmentVariable("Path", "User")
if ($userPath -notlike "*$installDir*") {
	[Environment]::SetEnvironmentVariable("Path", "$userPath;$installDir", "User")
	$env:Path += ";$installDir"
	Write-Host "Added $installDir to user PATH. You may need to restart your terminal."
}

Write-Host "stylezero $version installed to $installDir."