feat: Hide page elements based on query param

* Hides global promo, nav menu and secondary menu if query param kivaAppReferral=true exists

GD-139

src/api/localResolvers/kivaAppReferral.js

@@ -0,0 +1,13 @@
+export default () => {
+	return {
+		resolvers: {
+			Query: {
+				isKivaAppReferral(obj, args) {
+					// Takes an argument of the query param value
+					// and returns a boolean if it is present and equal to true
+					return args?.kivaAppReferralQueryParam === 'true';
+				},
+			}
+		},
+	};
+};

src/api/localSchema.graphql

@@ -45,6 +45,7 @@ extend type Query {
 	autolending: Autolending
 	verificationLightbox: VerificationLightbox
 	hasEverLoggedIn: Boolean
+	isKivaAppReferral(kivaAppReferralQueryParam: String): Boolean
 }
 
 extend type My {

src/components/WwwFrame/LendMenu/TheLendMenu.vue

@@ -113,7 +113,7 @@ export default {
 	},
 	methods: {
 		onOpen() {
-			this.$refs.mega.onOpen();
+			this.$refs?.mega?.onOpen?.();
 		},
 		onClose() {
 			this.$refs.list.onClose();

src/components/WwwFrame/TheHeader.vue

@@ -572,7 +572,7 @@ export default {
 		},
 		onLendMenuShow() {
 			if (this.mgHighlightInNavVersion !== 'shown') {
-				this.$refs.lendMenu.onOpen();
+				this.$refs?.lendMenu?.onOpen?.();
 			}
 			this.$kvTrackEvent('TopNav', 'hover-Lend-menu', 'Lend');
 		},

src/components/WwwFrame/WwwPage.vue

@@ -1,11 +1,13 @@
 <template>
 	<div class="www-page">
-		<the-banner-area />
-		<the-header
-			:hide-search-in-header="hideSearchInHeader"
-			:theme="headerTheme"
-		/>
-		<slot name="secondary"></slot>
+		<template v-if="!isKivaAppReferral">
+			<the-banner-area />
+			<the-header
+				:hide-search-in-header="hideSearchInHeader"
+				:theme="headerTheme"
+			/>
+			<slot name="secondary"></slot>
+		</template>
 		<main :class="mainClasses">
 			<slot name="tertiary"></slot>
 			<slot></slot>
@@ -21,8 +23,10 @@
 </template>
 
 <script>
-import _get from 'lodash/get';
 import hasEverLoggedInQuery from '@/graphql/query/shared/hasEverLoggedIn.graphql';
+import isKivaAppReferralQuery from '@/graphql/query/shared/isKivaAppReferral.graphql';
+import logReadQueryError from '@/util/logReadQueryError';
+
 import { fetchAllExpSettings } from '@/util/experimentPreFetch';
 import appInstallMixin from '@/plugins/app-install-mixin';
 import CookieBanner from '@/components/WwwFrame/CookieBanner';
@@ -68,15 +72,40 @@ export default {
 			default: '',
 		},
 	},
+	data() {
+		return {
+			isKivaAppReferral: false
+		};
+	},
 	apollo: {
-		preFetch(config, client, args) {
+		preFetch(config, client, { route }) {
 			return Promise.all([
 				client.query({ query: hasEverLoggedInQuery }),
 				fetchAllExpSettings(config, client, {
-					query: _get(args, 'route.query'),
-					path: _get(args, 'route.path')
+					query: route?.query,
+					path: route?.path
 				}),
+				client.query({
+					query: isKivaAppReferralQuery,
+					variables: {
+						kivaAppReferralQueryParam: route?.query?.kivaAppReferral,
+					},
+				})
 			]);
+		},
+	},
+	created() {
+		let referralData = {};
+		try {
+			referralData = this.apollo.readQuery({
+				query: isKivaAppReferralQuery,
+				variables: {
+					kivaAppReferralQueryParam: this.$route?.query?.kivaAppReferral,
+				},
+			});
+			this.isKivaAppReferral = referralData?.isKivaAppReferral || false;
+		} catch (e) {
+			logReadQueryError(e, 'WwwPage isKivaAppReferralQuery');
 		}
 	},
 	computed: {

src/graphql/query/shared/isKivaAppReferral.graphql

@@ -0,0 +1,3 @@
+query isKivaAppReferral($kivaAppReferralQueryParam: String) {
+	isKivaAppReferral(kivaAppReferralQueryParam: $kivaAppReferralQueryParam) @client
+}