File "event-emit.js"

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/**
 * Internal dependencies
 */
import {
	emitterCallback,
	reducer,
	emitEvent,
	emitEventWithAbort,
} from '../../../event-emit';

const EMIT_TYPES = {
	ADD_TO_CART_BEFORE_PROCESSING: 'add_to_cart_before_processing',
	ADD_TO_CART_AFTER_PROCESSING_WITH_SUCCESS:
		'add_to_cart_after_processing_with_success',
	ADD_TO_CART_AFTER_PROCESSING_WITH_ERROR:
		'add_to_cart_after_processing_with_error',
};

/**
 * Receives a reducer dispatcher and returns an object with the callback registration function for
 * the add to cart emit events.
 *
 * Calling the event registration function with the callback will register it for the event emitter
 * and will return a dispatcher for removing the registered callback (useful for implementation
 * in `useEffect`).
 *
 * @param {Function} dispatcher The emitter reducer dispatcher.
 *
 * @return {Object} An object with the add to cart form emitter registration
 */
const emitterObservers = ( dispatcher ) => ( {
	onAddToCartAfterProcessingWithSuccess: emitterCallback(
		EMIT_TYPES.ADD_TO_CART_AFTER_PROCESSING_WITH_SUCCESS,
		dispatcher
	),
	onAddToCartProcessingWithError: emitterCallback(
		EMIT_TYPES.ADD_TO_CART_AFTER_PROCESSING_WITH_ERROR,
		dispatcher
	),
	onAddToCartBeforeProcessing: emitterCallback(
		EMIT_TYPES.ADD_TO_CART_BEFORE_PROCESSING,
		dispatcher
	),
} );

export { EMIT_TYPES, emitterObservers, reducer, emitEvent, emitEventWithAbort };