/**
 * Internal dependencies
 */
import { domReady } from '../dom-ready';
import type { ExperimentSummary } from '../../../types';

export function parseJavaScript< T extends ExperimentSummary >(
	experiments: ReadonlyArray< T > | undefined
): ReadonlyArray< T > {
	experiments = experiments ?? [];
	return experiments.map( ( e ) => {
		const goals = e.goals.map( ( g ) => ( {
			...g,
			conversionActions: g.conversionActions.map( ( ca ) => {
				if ( ! ca.active ) {
					return ca;
				}

				if ( 'nab/custom-event' !== ca.type ) {
					return ca;
				}

				const snippet = ca.attributes.snippet;
				if ( 'string' !== typeof snippet ) {
					return ca;
				}

				// eslint-disable-next-line no-eval
				domReady( () => eval( snippet ) );

				return ca;
			} ),
		} ) );

		if ( ! e.active ) {
			return { ...e, goals };
		}

		return {
			...e,
			alternatives:
				e.type === 'nab/css' || e.type === 'nab/javascript'
					? e.alternatives.map( ( a ) => ( {
							...a,
							// eslint-disable-next-line @typescript-eslint/no-unsafe-assignment, no-eval
							run: eval( `(()=>${ a.run as string })()` ),
					  } ) )
					: e.alternatives,
			goals,
		};
	} );
}