# === KONFIGURACJA ===
$LocalIP = "127.0.0.1"

$Domains = @(
    "roblox.com",
    "www.roblox.com",
    "api.roblox.com",
    "auth.roblox.com",
    "economy.roblox.com",
    "friends.roblox.com",
    "games.roblox.com",
    "catalog.roblox.com",
    "chat.roblox.com",
    "assetdelivery.roblox.com",
    "clientsettingscdn.roblox.com",
    "setup.roblox.com"
)

$HostsPath = "$env:SystemRoot\System32\drivers\etc\hosts"
$BackupPath = "$HostsPath.bak"

# === SPRAWDZENIE ADMINA ===
if (-not ([Security.Principal.WindowsPrincipal] `
    [Security.Principal.WindowsIdentity]::GetCurrent()
).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
    Write-Error "Uruchom PowerShell jako Administrator!"
    exit 1
}

# === BACKUP HOSTS ===
if (-not (Test-Path $BackupPath)) {
    Copy-Item $HostsPath $BackupPath
    Write-Host "Backup hosts utworzony: $BackupPath"
}

$HostsContent = Get-Content $HostsPath -ErrorAction Stop

foreach ($Domain in $Domains) {
    if ($HostsContent -notmatch "^\s*$LocalIP\s+$Domain$") {
        Add-Content -Path $HostsPath -Value "$LocalIP`t$Domain"
        Write-Host "Dodano: $Domain → $LocalIP"
    } else {
        Write-Host "Już istnieje: $Domain"
    }
}

Write-Host "`nGotowe. Może być wymagany restart przeglądarki / flush DNS."