CSR-1452 | More promo logic

Watch lineItems to automatically run revalidate when the cart changes
Add in auto add of addable vaps in beforeRouteEnter
Create adding of addableVaps to order in promo helper

src/helpers/promotions-helper.js

@@ -1,6 +1,7 @@
 import store from "@/store";
 import { storeActions } from "@/constants/store-actions";
 import { partTypeStrings } from "@/constants/part-type-strings";
+import { deepClone } from "@/helpers/object-helper";
 import baseMixin from "@/mixins/base-mixin.js";
 
 export const promoPartNumberStrings = {
@@ -126,6 +127,31 @@ export function getPromosThatMatchLineItemsOnOrder(promos, lineItemsOnOrder) {
     return matchingPromos;
 }
 
+// Returns the vaps that the provided <promos> requires to be on the order to satisfy
+//  Items that are already in <lineItemsOnOrder> will not be returned
+export function getVapsThatNeedToBeAddedToSatisfyPromos(
+    promos,
+    availableLineItems,
+    lineItemsOnOrder
+) {
+    const clonedVaps = deepClone(lineItemsOnOrder.vaps ?? []);
+    const promosWithAddableVaps = getPromosWithAddableVaps(promos);
+    if (promosWithAddableVaps.length) {
+        const matchingLineItems = getLineItemsThatMatchPromos(
+            promosWithAddableVaps,
+            availableLineItems
+        );
+        // Check if matching items are already in the order
+        const idsOfVapsAlreadyInOrder = clonedVaps.map((lineItem) => lineItem.id);
+        const vapsToAddToCart = matchingLineItems.filter(
+            (lineItem) => !idsOfVapsAlreadyInOrder.includes(lineItem.id)
+        );
+        return vapsToAddToCart;
+    } else {
+        return [];
+    }
+}
+
 export function shouldStripPromoQueryString(fmgPageQueryValue) {
     return pagesToStripPromoQueryStringFrom.includes(fmgPageQueryValue);
 }

src/layouts/payment-method/add-vaps-modal-buttons/add-vaps-modal-buttons.vue

@@ -97,7 +97,11 @@ export default {
             this.$refs[modalName].closeModal();
         },
         addRainDefenseToCart(modalName, part) {
-            this.currentCartItems.vaps.push(part);
+            // Clone vaps array, then replace this.currentCartItems.vaps with it at the end
+            //  in order to successfully trigger parent's watcher
+            const clonedVaps = this.currentCartItems.vaps.slice(0);
+            clonedVaps.push(part);
+            this.currentCartItems.vaps = clonedVaps;
             this.closeModal(modalName);
             const message = this.getRainDefenseAddedMessage();
             this.$emit("added-to-cart", {
@@ -133,19 +137,23 @@ export default {
                     this.selectedWipers = ["REAR"];
                 }
             }
+            // Clone vaps array, then replace this.currentCartItems.vaps with it at the end
+            //  in order to successfully trigger parent's watcher
+            const clonedVaps = this.currentCartItems.vaps.slice(0);
 
             itemsForCart.forEach((type) => {
                 if (type === wipersOfferedStrings.FRONT) {
                     part.frontWiperLineItems.forEach((part) => {
-                        this.currentCartItems.vaps.push(part);
+                        clonedVaps.push(part);
                     });
                 }
                 if (type === wipersOfferedStrings.REAR) {
                     part.rearWiperLineItems.forEach((part) => {
-                        this.currentCartItems.vaps.push(part);
+                        clonedVaps.push(part);
                     });
                 }
             });
+            this.currentCartItems.vaps = clonedVaps;
 
             this.closeModal(modalName);
 

src/layouts/payment-method/payment-method.vue

@@ -88,7 +88,8 @@ import { paymentMethods } from "@/constants/payment-method-constants";
 import { experimentSettings } from "@/constants/experiments";
 import {
     revalidatePromosAndValidateNewPromo,
-    getAddableVapsFromAvailableLineItems,
+    getPromosWithAddableVaps,
+    getVapsThatNeedToBeAddedToSatisfyPromos,
 } from "@/helpers/promotions-helper";
 import { queryStrings } from "@/constants/query-strings";
 import { getQuerystringParameter } from "@/helpers/querystring-helper";
@@ -177,7 +178,9 @@ export default {
                 "payment-method"
             );
 
-        availableLineItems.push(...(validatePromoResponse?.orderPromos ?? []));
+        const newValidatedPromos = validatePromoResponse?.orderPromos ?? [];
+
+        availableLineItems.push(...newValidatedPromos);
         // End of promo logic
 
         const taxedAvailableLineItems = await baseMixin.methods.dispatchStoreActionWithLogging(
@@ -201,6 +204,15 @@ export default {
             availableLineItems,
             lineItemsFromStore
         );
+        // Add items that were not in the store yet but added via query string promo validation
+        lineItems.promos = lineItems.promos ?? [];
+        lineItems.promos.push(...newValidatedPromos);
+        const vapsToAddToCart = getVapsThatNeedToBeAddedToSatisfyPromos(
+            newValidatedPromos,
+            availableLineItems,
+            lineItems
+        );
+        lineItems.vaps.push(...vapsToAddToCart);
 
         // Call the "next" function to complete the transition to this page.
         next((vm) => {
@@ -412,11 +424,35 @@ export default {
         shouldDisplayPiaAlert() {
             return this.$route.params[this.routerParams.DISPLAY_PIA_ALERT];
         },
+        // Necessary to make the watcher of lineItems work
+        // JavaScript does not keep a record of the old value, only a reference to it's location in the memory.
+        //  This creates a separate location for oldValue/newValue so they can be compared
+        // See Vue github issue #2164
+        lineItemsCloneForWatcher() {
+            return Object.assign({}, this.lineItems);
+        },
     },
     watch: {
         customCtaCopy(newValue) {
             this.updateFooterButtonText(newValue);
         },
+        lineItemsCloneForWatcher: {
+            handler(newValue, oldValue) {
+                if (
+                    !oldValue ||
+                    oldValue.length == 0 ||
+                    !oldValue.vaps ||
+                    !newValue ||
+                    newValue.length == 0
+                ) {
+                    return;
+                }
+                if (oldValue.vaps.length != newValue.vaps.length) {
+                    this.revalidatePromos();
+                }
+            },
+            deep: true,
+        },
     },
     components: {
         funnelHeader,