def process_payment(user, order_id)
  order = Order.find(order_id)
  raise "Order not found" unless order

  payment_gateway = PaymentGateway.new(user.payment_token)
  payment_result = payment_gateway.charge(order.amount_cents)

  if payment_result.success?
    order.update!(status: :paid, paid_at: Time.current)
    AnalyticsLogger.log_payment_success(user.id, order.id)
    NotificationService.send_payment_confirmation_email(user, order)

    if user.referral_code.present?
      reward_service = ReferralRewardService.new(user.referral_code)
      reward_service.process_reward_for(user)
    end

    SendThankYouGiftJob.perform_later(user.id) if order.amount_cents > 100_000
  else
    order.update!(status: :payment_failed)
    ErrorTracker.notify("Payment failed", user_id: user.id, order_id: order.id)
  end
end

def process_payment(user, order_id)
  order = Order.find(order_id)
  raise "Order not found" unless order

  if charge_order(user, order)
    handle_successful_payment(user, order)
  else
    handle_failed_payment(user, order)
  end
end

def charge_order(user, order)
  result = PaymentGateway.new(user.payment_token).charge(order.amount_cents)
  return false unless result.success?

  order.update!(status: :paid, paid_at: Time.current)
  true
end

def handle_successful_payment(user, order)
  log_payment_success(user, order)
  notify_user_of_payment(user, order)
  reward_referral_if_applicable(user)
  send_thank_you_gift_if_high_value(user, order)
end

def handle_failed_payment(user, order)
  order.update!(status: :payment_failed)
  ErrorTracker.notify("Payment failed", user_id: user.id, order_id: order.id)
end

def log_payment_success(user, order)
  AnalyticsLogger.log_payment_success(user_id: user.id, order_id: order.id)
end

def notify_user_of_payment(user, order)
  NotificationService.send_payment_confirmation_email(user, order)
end

def reward_referral_if_applicable(user)
  return unless user.referral_code.present?

  reward_service = ReferralRewardService.new(user.referral_code)
  reward_service.process_reward_for(user)
end

def send_thank_you_gift_if_high_value(user, order)
  return unless order.amount_cents > 100_000

  SendThankYouGiftJob.perform_later(user.id)
end