$ErrorActionPreference = "Stop"

$BaseUrl = "https://get.uprooted.sh"
$TempDir = Join-Path $env:TEMP "UprootedInstaller"

if (Test-Path $TempDir) { Remove-Item $TempDir -Recurse -Force }
New-Item -ItemType Directory -Force -Path $TempDir | Out-Null

Write-Host ""
Write-Host "  Uprooted" -ForegroundColor Cyan
Write-Host "  ========" -ForegroundColor DarkCyan
Write-Host ""

Write-Host "  Fetching release info..." -ForegroundColor Gray
$manifest = Invoke-RestMethod "$BaseUrl/releases/latest.json"

$version      = $manifest.version
$dlUrl        = $manifest.asset.url
$expectedHash = $manifest.asset.sha256.ToLowerInvariant()

Write-Host "  Version $version" -ForegroundColor White

$fileName     = Split-Path $dlUrl -Leaf
$installerPath = Join-Path $TempDir $fileName

Write-Host "  Downloading..." -ForegroundColor Gray
Invoke-WebRequest $dlUrl -OutFile $installerPath -UseBasicParsing

Write-Host "  Verifying integrity..." -ForegroundColor Gray
$actualHash = (Get-FileHash $installerPath -Algorithm SHA256).Hash.ToLowerInvariant()
if ($actualHash -ne $expectedHash) {
    Remove-Item $TempDir -Recurse -Force
    throw "SHA256 mismatch — expected $expectedHash, got $actualHash"
}

Write-Host ""
Write-Host "  Verified. Launching Uprooted v$version..." -ForegroundColor Green
Write-Host ""

Start-Process -FilePath $installerPath