import { createC2pa } from '/TemplatePackage/contrib/libs/c2pa/latest/c2pa.esm.min.js';

(async () => {
	const c2pa = await createC2pa({
		wasmSrc: '/TemplatePackage/contrib/libs/c2pa/latest/toolkit_bg.wasm',
		workerSrc: '/TemplatePackage/contrib/libs/c2pa/latest/c2pa.worker.min.js',
	});

	const DEBUG = !!window.location?.search?.includes('cdcdebug');

	// expose as recallable method
	window.cdcc2paCheck = () => {
		Array.from(document.getElementsByTagName('img')).forEach(async (image) => {
			// skip images in page headers, footers, or non-indexed content, or images already checked
			if (image?.closest('header, footer, .noindex, #hero-carousel') || image.hasOwnProperty('c2pa') || !image.src) {
				return;
			}
			// skip SVGs
			if (image.src.match(/\.(svg)$/i)) {
				return;
			}
			// Get a manifest store for the image
			let manifestStore = null;
			image.c2pa = false;
			try {
				let manifest = await c2pa.read(image);
				manifestStore = manifest.manifestStore;
			} catch (e) {
				DEBUG && console.error(`C2R: failed checking image:`, image, e);
				return;
			}
			const manifestFlat = JSON.stringify(manifestStore?.activeManifest?.assertions?.data || {});
			const manifestCheck = manifestFlat.includes('cv.iptc.org/newscodes/digitalsourcetype/compositeWithTrainedAlgorithmicMedia') ||
				manifestFlat.includes('cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia');

			DEBUG && console.info(`C2R: ${manifestCheck?'Y':'n'}`, image, manifestStore);
			if (manifestStore && manifestCheck) {
				// dispatch event and flag to avoid retriggering
				image.dispatchEvent(new CustomEvent('cdc-image-c2r', { detail: manifestStore, bubbles: true }));
				image.c2pa = true;
			}
		});
	}
	window.cdcc2paCheck();

})();