class RubyNative::CLI::Login

def initialize(argv = [])
end

def open_browser(url)
  case RUBY_PLATFORM
  when /darwin/
    system("open", url)
  when /linux/
    system("xdg-open", url)
  when /mingw|mswin/
    system("start", url)
  end
end

def poll_for_token(code)
  uri = URI("#{HOST}/cli/session/poll?code=#{code}")
  attempts = 0
  max_attempts = 60
  loop do
    attempts += 1
    return nil if attempts > max_attempts
    sleep 2
    response = Net::HTTP.get_response(uri)
    if response.is_a?(Net::HTTPSuccess)
      data = JSON.parse(response.body)
      return data["token"]
    end
  end
rescue Interrupt
  nil
end

def run
  code = SecureRandom.hex(20)
  url = "#{HOST}/cli/session/new?code=#{code}"
  puts "Opening browser to authorize..."
  open_browser(url)
  puts "Waiting for authorization..."
  token = poll_for_token(code)
  if token
    Credentials.save(token)
    puts "Logged in to Ruby Native."
  else
    puts "Authorization timed out. Please try again."
    exit 1
  end
end