Read the filterAtAGlance switch on the server

dotcom-rendering/src/model/enhance-product-summary.test.ts

@@ -224,6 +224,7 @@ describe('enhanceProductSummary', () => {
 			pageId: allowedPageId,
 			serverSideABTests: { 'thefilter-at-a-glance-redesign': 'carousel' },
 			renderingTarget: 'Web',
+			filterAtAGlanceEnabled: true,
 		})(input);
 
 		const carousel = findCarousel(output);
@@ -265,6 +266,7 @@ describe('enhanceProductSummary', () => {
 			pageId: allowedPageId,
 			serverSideABTests: { 'thefilter-at-a-glance-redesign': 'stacked' },
 			renderingTarget: 'Web',
+			filterAtAGlanceEnabled: true,
 		})(input);
 
 		const stacked = findStacked(output);
@@ -306,6 +308,49 @@ describe('enhanceProductSummary', () => {
 			pageId: allowedPageId,
 			serverSideABTests: { 'thefilter-at-a-glance-redesign': 'stacked' },
 			renderingTarget: 'Apps',
+			filterAtAGlanceEnabled: true,
+		})(input);
+
+		const stacked = findStacked(output);
+
+		expect(stacked).toBeUndefined();
+	});
+
+	it('does not return stacked cards when the filterAtAGlance switch is OFF', () => {
+		const allowedPageId =
+			'thefilter/test-article-example-for-product-summary';
+
+		const input = [
+			atAGlanceHeading(),
+			linkElement(
+				'https://www.homebase.co.uk/en-uk/tower-airx-t17166-5l-grey-single-basket-air-fryer-digital-air-fryer/p/0757395',
+				'Buy now',
+			),
+			linkElement(
+				'https://www.lakeland.co.uk/27537/lakeland-slimline-air-fryer-black-8l',
+				'Buy now',
+			),
+			linkElement(
+				'https://ninjakitchen.co.uk/product/ninja-double-stack-xl-9-5l-air-fryer-sl400uk-zidSL400UK',
+				'Buy now',
+			),
+			dividerElement(),
+			productElement([
+				'https://www.homebase.co.uk/en-uk/tower-airx-t17166-5l-grey-single-basket-air-fryer-digital-air-fryer/p/0757395',
+			]),
+			productElement([
+				'https://www.lakeland.co.uk/27537/lakeland-slimline-air-fryer-black-8l',
+			]),
+			productElement([
+				'https://ninjakitchen.co.uk/product/ninja-double-stack-xl-9-5l-air-fryer-sl400uk-zidSL400UK',
+			]),
+		];
+
+		const output = enhanceProductSummary({
+			pageId: allowedPageId,
+			serverSideABTests: { 'thefilter-at-a-glance-redesign': 'stacked' },
+			renderingTarget: 'Web',
+			filterAtAGlanceEnabled: false,
 		})(input);
 
 		const stacked = findStacked(output);

dotcom-rendering/src/model/enhance-product-summary.ts

@@ -180,17 +180,20 @@ export const enhanceProductSummary =
 		pageId,
 		serverSideABTests,
 		renderingTarget,
+		filterAtAGlanceEnabled,
 	}: {
 		pageId: string;
 		serverSideABTests?: Record<string, string>;
 		renderingTarget: RenderingTarget;
+		filterAtAGlanceEnabled: boolean;
 	}) =>
 	(elements: FEElement[]): FEElement[] => {
 		const abTestVariant =
 			serverSideABTests?.['thefilter-at-a-glance-redesign'];
 
-		// do nothing if article is not on allow list / not in the test / variant is 'control' / renderingTarget is Apps
+		// do nothing if article is not on allow list / not in the test / variant is 'control' / renderingTarget is Apps / filterAtAGlance switch is OFF
 		if (
+			filterAtAGlanceEnabled &&
 			abTestVariant &&
 			isCarouselOrStacked(abTestVariant) &&
 			isEligibleForSummary(pageId) &&

dotcom-rendering/src/model/enhanceBlocks.ts

@@ -1,6 +1,7 @@
 import { isUndefined } from '@guardian/libs';
 import { type ArticleFormat } from '../lib/articleFormat';
 import type { Block } from '../types/blocks';
+import type { Switches } from '../types/config';
 import type {
 	FEElement,
 	ImageBlockElement,
@@ -37,6 +38,7 @@ type Options = {
 	shouldHideAds: boolean;
 	pageId: string;
 	serverSideABTests?: Record<string, string>;
+	switches?: Switches;
 };
 
 const enhanceNewsletterSignup =
@@ -101,6 +103,7 @@ export const enhanceElements =
 				pageId: options.pageId,
 				serverSideABTests: options.serverSideABTests,
 				renderingTarget: options.renderingTarget,
+				filterAtAGlanceEnabled: !!options.switches?.filterAtAGlance,
 			}),
 		].reduce(
 			(enhancedBlocks, enhancer) => enhancer(enhancedBlocks),

dotcom-rendering/src/server/handler.article.apps.ts

@@ -55,6 +55,7 @@ export const handleAppsBlocks: RequestHandler = ({ body }, res) => {
 		hasAffiliateLinksDisclaimer: false,
 		shouldHideAds,
 		pageId,
+		switches,
 	});
 	const html = renderAppsBlocks({
 		blocks: enhancedBlocks,

dotcom-rendering/src/server/handler.article.web.ts

@@ -60,6 +60,7 @@ export const handleBlocks: RequestHandler = ({ body }, res) => {
 		shouldHideAds,
 		pageId,
 		serverSideABTests,
+		switches,
 	});
 	const html = renderBlocks({
 		blocks: enhancedBlocks,

dotcom-rendering/src/types/article.ts

@@ -105,6 +105,7 @@ export const enhanceArticleType = (
 		shouldHideAds: data.shouldHideAds,
 		pageId: data.pageId,
 		serverSideABTests: data.config.serverSideABTests,
+		switches: data.config.switches,
 	});
 
 	const crosswordBlock = buildCrosswordBlock(data);