import { EventType } from "../../../event/core/event";
import { CartEvent } from "../base/cart-event";

/**
 * Session Cart Remove Event.
 *
 * Should be used whenever the user adds a new product to the basket.
 * Should be sent with info about the product the user just removed
 * from the basket.
 *
 * @export
 * @class SessionCartRemoveEvent
 * @extends {Event}
 */
export class SessionCartRemoveEvent extends CartEvent {
    public type: EventType = EventType.SessionCartRemove;

    /**
     * Creates an instance of SessionCartRemoveEvent.
     *
     * @memberof SessionCartRemoveEvent
     */
    constructor(public locale?: string, public channel?: string) {
        super();
    }

    /**
     * Push this SessionCartRemoveEvent event to the server.
     *
     * If no products are passed before this method is called
     * nothing will be done.
     *
     * @return {Promise<Response>}
     * @memberof SessionCartRemoveEvent
     */
    public async push(): Promise<Response> {
        if (this.products.length > 0) {
            return super.push();
        }

        // If no products were added to this event, do nothing.
        return Promise.resolve(null);
    }
}