# BLNK Installer for Windows
# Usage: irm https://blnk.bcdflow.net/install.ps1 | iex

$ErrorActionPreference = "Stop"

$BinaryName = "blnk"
$BaseUrl = "https://blnk.bcdflow.net/dist"

function Info($msg) { Write-Host "  -> $msg" -ForegroundColor Cyan }
function Success($msg) { Write-Host "  OK $msg" -ForegroundColor Green }
function Warn($msg) { Write-Host "  !! $msg" -ForegroundColor Yellow }
function Error($msg) { Write-Host "  XX $msg" -ForegroundColor Red; exit 1 }

# Detect architecture
$arch = if ([Environment]::Is64BitOperatingSystem) {
    if ($env:PROCESSOR_ARCHITECTURE -eq "ARM64") { "aarch64" } else { "x86_64" }
} else {
    Error "32-bit systems are not supported"
}

Info "Downloading blnk (windows-$arch)..."

$filename = "$BinaryName-windows-$arch.exe"
$url = "$BaseUrl/$filename"
$installDir = "$env:USERPROFILE\.blnk\bin"
$installPath = "$installDir\$BinaryName.exe"

# Create install directory
if (!(Test-Path $installDir)) {
    New-Item -ItemType Directory -Path $installDir -Force | Out-Null
}

# Download
$tmpFile = "$env:TEMP\$filename"
try {
    Invoke-WebRequest -Uri $url -OutFile $tmpFile -UseBasicParsing
} catch {
    Error "Download failed: $_"
}

# Install
Move-Item -Path $tmpFile -Destination $installPath -Force

# Add to PATH if not already
$userPath = [Environment]::GetEnvironmentVariable("PATH", "User")
if ($userPath -notlike "*$installDir*") {
    [Environment]::SetEnvironmentVariable("PATH", "$userPath;$installDir", "User")
    $env:PATH = "$env:PATH;$installDir"
    Info "Added $installDir to PATH"
}

# Verify
if (Test-Path $installPath) {
    Success "Installed! Restart your terminal, then run 'blnk' to start."
} else {
    Error "Installation failed"
}