const STRIPE_PAYMENT_METHOD_NAME = 'STRIPE';
// const STRIPE_PK_KEY = 'pk_live_qh8yYnYAc9drCSt4FYH5pjot';
var createdToken = null;

// Creates an Stripe end user account in MessengerSell
function updateCustomerWithToken(stripeToken) {
	var dataToInclude = {
		stripeToken: stripeToken
	};
	updateCustomer(dataToInclude).end();
}


async function createPaymentIntent() {

  console.log('createPaymentIntent(): using ' + selectedPaymentMethod + ' payment method!');

  var paymentRequest = {
   customerId: customerId,
   label: createLabelObject(),
   couponCode: null,
   standardNote: null,
   selectedProductOption: selectedProductOption,
   selectedShippingMethod: selectedShippingMethod,
   selectedPaymentMethod: selectedPaymentMethod,
   shoppingCartId: null,
   stripeToken: createdToken,
   shippingAddress: buildShippingAddress(),
   isChiringoCart: parent.IS_CHIRINGO_CART,
  };

  console.log('createPaymentIntent(): paying for ' + JSON.stringify(paymentRequest, null, 2));

  var paymentIntentResponse = await request.post('/beta/payment/stripe/paymentIntent')
  .set('X-Request-ID', correlationId)
  .send(paymentRequest);

  console.log('createPaymentIntent(): obtained payment intent ' + JSON.stringify(paymentIntentResponse, null, 2));

  if (!paymentIntentResponse || !paymentIntentResponse.body || !paymentIntentResponse.body.paymentIntent || !paymentIntentResponse.body.paymentIntent.client_secret) {
    console.error('createPaymentIntent(): Stripe did not return any payment intent...');
    return null;
  }
  console.log('createPaymentIntent(): PI_Secret ' + paymentIntentResponse.body.paymentIntent.client_secret);
  
  return { 
    paymentIntent: paymentIntentResponse,
    paymentRequest: paymentRequest
  };

}


async function confirmPaymentIntent(stripeElementsObject, paymentIntent, paymentRequest, cardElement) {
  var paymentIntentSecret = paymentIntent.body.paymentIntent.client_secret;
  var result = await stripeElementsObject.confirmCardPayment(paymentIntentSecret, {
    payment_method: {
      card: cardElement
    }
  });

  if (result.error) {
    unsetButtonAsLoading('paybutton');
    console.error('confirmPaymentIntent(): could not continue the payment intent ' + JSON.stringify(result.error, null, 2));
    // TODO: Inform the customer that there was an error.
    var errorElement = document.getElementById('card-errors');
    errorElement.textContent = result.error.message;
    return;
  }
  console.log('confirmPaymentIntent(): SUCCESSFULLY payment intent emitted ' + JSON.stringify(result, null, 2));
  return result;
}


async function stripePay(params) {

  if (!params) return;

  var stripeElementsObject = params.stripeEmbedded;
  var paymentIntent = params.paymentIntent;
  var paymentRequest = params.paymentRequest;
  var cardElement = params.cardElement;

  // 1) Turn confirm payment request in synchronous
  var intentConfirmation = await confirmPaymentIntent(stripeElementsObject, paymentIntent, paymentRequest, cardElement);
  if (intentConfirmation.paymentIntent.status != 'succeeded') {
    showPaymentFailedAlert(null);
    return;
  }

  updateFunnelState(paymentRequest.label[0].label, null, FUNNEL_STATES.PAYMENT_WENT_THROUGH);

  // 2) Store the transaction as pending
  var intentConfirmationAndPaymentRequest = {
    paymentRequest: paymentRequest,
    intentConfirmation: intentConfirmation,
    shippingAddress: buildShippingAddress(),
    selectedShippingMethod: selectedShippingMethod,
    isChiringoCart: parent.IS_CHIRINGO_CART 
  }
  console.log('stripePay(): the transaction confirmation looks like ' + JSON.stringify(intentConfirmation, null, 2));
  var intentStorageResult = await request.post('/beta/payment/stripe/paymentIntent/store')
    .set('X-Request-ID', correlationId)
    .send(intentConfirmationAndPaymentRequest);
  console.log('stripePay(): the transaction storage result looks like ' + JSON.stringify(intentStorageResult, null, 2));

  return intentStorageResult;

  // 3) Craft a response according to what was returned by /beta/payment/stripe/charge
  // return request.post('/beta/payment/stripe/charge')
  //   .set('X-Request-ID', correlationId)
  //   .send(paymentRequest);
}


$(document).ready(function() {

	PAYMENT_METHOD_CHARGE_FUNCTIONS[STRIPE_PAYMENT_METHOD_NAME] = stripePay;
  // PAYMENT_METHOD_FURTHER_ACTION_FUNCTIONS[STRIPE_PAYMENT_METHOD_NAME] = handleExternalAutorization;

});