Primary image fallback

[buuhuu]

Currently we rely on a image with role image to be present as primary image for the ld+json entry and the page metadata:

aem-commerce-prerender/actions/pdp-renderer/render.js

Lines 13 to 20 in d855227

	const primaryImage = getPrimaryImage(baseProduct)?.url;
	templateProductData.hasImages = baseProduct.images?.length > 0;
	templateProductData.imageList = getImageList(primaryImage, baseProduct.images);
	templateProductData.priceString = generatePriceString(baseProduct);
	templateProductData.metaDescription = findDescription(baseProduct);
	templateProductData.metaImage = primaryImage;
	templateProductData.primaryImage = primaryImage;

and

aem-commerce-prerender/actions/pdp-renderer/ldJson.js

Lines 85 to 87 in d855227

	const { name, sku, __typename } = product;
	const image = getPrimaryImage(product);
	const url = getProductUrl(product, context);

The logic currently has no fallback, meaning there will be a ld+json with a missing image, which is invalid for a merchant listing.

One option would be to fallback to the first image, if there is none for the given role.