Questions:

N/D

Technical Refinement

Goal

The main objective is to allow the customers to use promo codes at checkout to receive benefits coming from offers.

Front-end refinement

From what we understand the current feature at checkout allow promo code just to type CBA offers and this feature is deprecated. More infos: https://rbidigital.slack.com/archives/C04FZ5HTH35/p1693855082030399.

As CBA feature is deprecated we need to change the promo code field to accept loyalty promo codes. (here more details on how to configure the promo code on sanity and voucherify: /wiki/spaces/CG/pages/984973325- OBS.: The documentation explain how configure promo codes to CBA offers and Loyalty Offers, So follow just the loyalty steps.)

After the config, we will have the config offer like this:

OBS.: On In-App Benefits there is just one item. If there are more itens, the discount will be the first item.

intl-whitelabel-app

1 - TASK: Create new promo code flow to loyalty

Create a feature flag;
The first step to use the loyalty promo code at checkout will be to change the validation promo code flow.
- On promo code component field, we will need to add a feature flag:
  - When this flag is enabled: The promo code flow will be LOYALTY OFFER
  - When this flag is disabled: The promo code flow will be CBA OFFER (current flow)
We will create a new hook to contain all the rules of this flow
- We can use the same hook used to offer page flow.
  - intl-whitelabel-app/workspaces/frontend/src/state/loyalty/hooks/use-redeem-promo-codes.ts

Example code used in this hook to validate the promo code on backend

const onSubmitLoyaltyPromoCode = useCallback(async () => {
    setPromoCodeValidationLoading(true);

    // const loyaltyId = 'ec5cec01-b41b-509b-9111-310ab5a18154';

    let event = createRbiApplyPromoCodeEvent(promoCodeInput, 'Successful');
    const personalizedOffer = await redeemMutation(user?.loyaltyId || '', promoCodeInput)
      .catch((e: PromoCodeError) => {
        const reason = buildErrorMessageFromPromoCodeError(e);
        setPromoCodeErrorMessageId(
          (reason as TPromoCodeErrorMessageIds) || PromoCodeErrorMessageIds.default
        );

        logger.error(`Error validating promo code ${e}`);
        event = createRbiApplyPromoCodeEvent(promoCodeInput, 'Failed', e.message);
      })
      .finally(() => {
        setPromoCodeValidationLoading(false);
      });

    trackEvent(event);

    if (personalizedOffer) {
      await handleRedemption(personalizedOffer);

      // clear promo code input & error message
      setPromoCodeErrorMessageId(null);
      setPromoCodeInput('');

      toast.success(formatMessage({ id: 'offerAddedToCart' }));
    }
  }, [
    formatMessage,
    handleRedemption,
    promoCodeInput,
    redeemMutation,
    trackEvent,
    user?.loyaltyId,
  ]);
  
  
   useEffect(() => {
    if (appliedOfferPromoCode?.loyaltyEngineId) {
      const standardOffersLimit =
        earningCalculationData?.EarningCalculation?.offerRedemptionLimits?.standardOffersLimit || 1;

      dispatch(actions.loyalty.setSelectedOffer(appliedOfferPromoCode));
      dispatch(actions.loyalty.setAppliedOffers([appliedOfferPromoCode]));

      if (isDiscountLoyaltyOffer(appliedOfferPromoCode)) {
        // If limit of offers reached remove the first one
        if (appliedOffers?.length >= standardOffersLimit) {
          removeFromCart({ cartId: appliedOffers[0].cartId });
        }

        //Discount offers should not show menu item details
        dispatch(
          actions.loyalty.applyOffer({
            id: appliedOfferPromoCode.loyaltyEngineId,
            type: OfferType.GLOBAL,
            isStackable: appliedOfferPromoCode.isStackable,
            isSurprise: isSurpriseOffer(appliedOfferPromoCode),
            cmsId: appliedOfferPromoCode._id,
            cartId: 'discount-offer',
          })
        );
      }

      dispatch(actions.loyalty.setCmsOffers([appliedOfferPromoCode]));
      return;
    }

    dispatch(actions.loyalty.setSelectedOffer(null));
    dispatch(actions.loyalty.setAppliedOffers([]));
    dispatch(actions.loyalty.setCmsOffers([]));

    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [appliedOfferPromoCode]);

Attention points:

We need to apply (dispatch) the personalised offer on some contexts:
1. actions.loyalty.setSelectedOffer(personalizedOffer)
2. actions.loyalty.setAppliedOffers
3. actions.loyalty.applyOffer
4. actions.loyalty.setCmsOffers

OBS.: It’s possible we need to apply the offer in another contexts too.

When we click on remove in offer info (after applied the offer), we need to remove the offer on all contexts.
When the customers reload the page, the offer must continue applied.
Verify need for other validations

With this update, the frontend is prepared to apply the promo code to loyalty.

2 - TASK: Updated action Remove button

We will need to update the button action to remove the applied offer on loyalty.offers.cmsOffers
- path: intl-whitelabel-app/workspaces/frontend/src/state/global-state/models/loyalty/offers/offers.slice.ts
```
removeCmsOffers: (state, { payload }: PayloadAction<LoyaltyOffer>) => {
  state.cmsOffers = state.cmsOffers.filter(offer => offer._id !== payload._id);
},
```
- path: intl-whitelabel-app/workspaces/frontend/src/pages/cart/your-cart/cart-offer.tsx
```
const onRemove = () => {
  ...
  dispatch(actions.loyalty.removeCmsOffers(selectedLoyaltyOffer));
};
```
  - OBS.: Change also:
    - path: intl-whitelabel-app/workspaces/frontend/src/state/global-state/models/loyalty/loyalty.actions.ts

3 - TASK: Hide CBA Options

We will need to hide the CBA option to ensure that anything CBA option shows.
- Then, we will create a new attribute to hide this option;
  - This attribute value can be the opposite of the value of feature flag (flag created on task 1)

4 - TASK: Apply discount again if not used

Currently, we don’t have the validated voucher flow on whitelabel-app and voucherify, Just the burn voucher flow when we applied the promo code.
When we applied the promo code, the offer get saved on the offers page.
- So, We need to validate the offers saved and compare the promo code added on the field to offers saved before validating the promo code on voucherify.
  - If we have a promo code saved, we will apply the offer without validating voucherify.
  - If we don’t have one, we will validate the promo code with voucherify;

5 - TASK: Clean the applied offer when finished the order

When finish the order, we need to clean the offers on cookies, sessions, etc.
- path: intl-whitelabel-app/workspaces/frontend/src/pages/order-confirmation/order-confirmation.tsx

Example code

useEffect(() => {
  if (!loading && !orderErrors) {
    dispatch(actions.loyalty.setSelectedOffer(null));
    dispatch(actions.loyalty.setAppliedOffers([]));
    dispatch(actions.loyalty.setCmsOffers([]));
  }
}, [dispatch, loading, orderErrors]);

Back-end

After applying the Whitelabel will do a call to the backend to calculate the discount value:

How is the calculation done?

So basically, we need to send (via slack) to Winrest the offers sanityId.

They register these sanityId on their system and after that, always we use some offers with these sanityId registered, Winrest will return the calculation offers correctly.

Example:

To use the offer Test: Test Discount Offer (Sanity DEV)

URL: https://dev-plk-es-whitelabel-cms.rbi.tools/desk/orderLevelContent;loyalty;incentives;offers;configOffers;a6f3eace-435e-49ea-9a79-e173f6172dcc
We will need to send the sanityId: a6f3eace-435e-49ea-9a79-e173f6172dcc to Winrest via some means of communication this information;
They will register this ID on their system;
When the intl-partners-service calls the Winrest API, the integration will know how much will be the discount;
The discount is always on the total value of the cart;

Solution proposal

Currently, we already sent the sanityId offer to the backend (intl-partners-service);
Then, we need to send the discount information to Winrest;
- With the sanityId that we have, we will find the discount values by getOffers(sanityId: string)
  - path: intl-partners-service/src/modules/orders/cart-total.service.ts
We will add a new attribute orderDiscounts on the webhook payload;
We will send it to Winrest always in percentage (requested to Winrest, 'cause will be easier for them);
The orderDiscounts object would be in each cart object;
If the discount is amount type, we will transform it to percentage type;
- E.g: If the total cart is 10 euros and amount discount is 5 euros;
  - We will calculate the discount:
    discount = (100 * 5) / 100; discount = 50%;
- So the payload will be:
```
"orderDiscounts": [
  {
    "type": "percentage",
    "value": 50
  }
]
```

Payload JSON

{
  "callbackUrl": "https://euw3-dev-plk-partners-api.rbictg.com/api/v1/orders/84b5f1df-28df-4e6f-a871-a2783602436f/price/callback",
  "cart": {
    "menuSelections": [
      {
        "externalReferenceId": "800853",
        "id": "f9f5b02e-bee8-4dd1-a5fa-222b79516a98",
        "menuSelections": [
          {
            "externalReferenceId": "800852",
            "id": "item_67167",
            "menuSelections": [],
            "price": {
              "amount": 679,
              "currency": "EUR"
            },
            "quantity": 1,
            "orderDiscounts": [
              {
                "type": "percentage",
                "value": 50
              }
            ]
          },
          {
            "externalReferenceId": "940151",
            "id": "item_50929",
            "menuSelections": [],
            "price": {
              "amount": 0,
              "currency": "EUR"
            },
            "quantity": 1,
            "orderDiscounts": [
              {
                "type": "percentage",
                "value": 50
              }
            ]
          },
          {
            "externalReferenceId": "940180",
            "id": "item_66018",
            "menuSelections": [],
            "price": {
              "amount": 1500,
              "currency": "EUR"
            },
            "quantity": 1,
            "orderDiscounts": [
              {
                "type": "percentage",
                "value": 50
              }
            ]
          },
          {
            "externalReferenceId": "940325",
            "id": "45adf5bb-2f3d-4c40-a735-cf59d5a661ef",
            "menuSelections": [],
            "price": {
              "amount": 0,
              "currency": "EUR"
            },
            "quantity": 1,
            "orderDiscounts": [
              {
                "type": "percentage",
                "value": 50
              }
            ]
          }
        ],
        "price": {
          "amount": 1100,
          "currency": "EUR"
        },
        "quantity": 1,
        "orderDiscounts": [
          {
            "type": "percentage",
            "value": 50
          }
        ]
      }
    ]
  },
  "channel": "WHITELABEL_IN_STORE",
  "fees": [],
  "id": "84b5f1df-28df-4e6f-a871-a2783602436f",
  "instructions": [],
  "serviceMode": "TAKEOUT",
  "storeId": "1111"
}

1 - TASK: Create a method to calculate the percentage offer;

Create a feature flag;
Create a method to calculate the percentage offer.
- path: intl-partners-service/src/modules/orders/orders.service.ts
- We will send the discount values per cart item to Winrest, but the calculation of the discount percentage will be based on the cart total, which will be easier to calculate and in the end will have the same result if we calculate the discount per item.
- The method will receive two params:
  - appliedOffers: IAppliedOffer[] | null | undefined
    - Offer applied on the cart;
  - total: number | undefined
    - total cart value;
- The method return will be:
  - Promise<IOrderDiscounts[] | undefined>
    - Where the IOrderDiscounts.type will be always a percentage;
- To discover the discount values we will need to use the method getOffers
  - path: intl-partners-service/src/modules/orders/cart-total.service.ts
  - This method is private, so we will update it to public;
- If the discount offer is a type amount we will calculate the percentage over the total cart value;
  - E.g: If the total cart is 10 euros and amount discount is 5 euros;
    - We will calculate the discount:
      discount = Math.round((5 * 100) / 10) discount = 50%;
- If the discount offer is a type percentage we will return the percentage value;
- The method example is on branch poc: https://github.com/rbilabs/intl-partners-service/tree/poc/IBFEC-934-send-discount-offers-to-winrest
  - path: intl-partners-service/src/modules/orders/orders.service.ts
  - method name: mapOffersDiscounts

2 - TASK: Update the calculated total card;

Currently, the total cart is calculated the all item values including the offers configs, so we need to remove the discount;

Screenshots

N/A

POC

FRONTEND (WHITELABEL)
- Branch POC: https://github.com/rbilabs/intl-whitelabel-app/tree/poc/IBFEC-934-loyalty-promo-code-at-checkout
BACKEND (INTL-PARTNERS-SERVICE)
- Branch POC: https://github.com/rbilabs/intl-partners-service/tree/poc/IBFEC-934-send-discount-offers-to-winrest

Impact Analysis

N/A

Dependencies

N/A

Unit Test

N/A

Useful Links

N/A

Technical refinement - Discount codes at checkout

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