import { Event } from "../../../event/core/event";

/**
 * Product in a cart event.
 *
 * @export
 * @interface CartProduct
 */
export interface CartProduct {
    product: string;
    skuId?: string;
    quantity: number;
}

/**
 * Cart Event data.
 *
 * @interface CartEventData
 */
export interface CartEventData {
    session?: string;
    anonymous?: string;
}

/**
 * Base Cart Event.
 *
 * @export
 * @abstract
 * @class CartEvent
 * @extends {Event}
 */
export abstract class CartEvent extends Event {
    public products: CartProduct[] = [];

    /**
     * Creates an instance of CartEvent.
     *
     * @memberof CartEvent
     * @param {CartEventData} data
     */
    constructor(data?: CartEventData) {
        super(data?.session, data?.anonymous);
    }

    /**
     * Add a product to this cart event.
     *
     * @param {string} product Product's ID.
     * @param {number} [quantity=1] Quantity inside the basket.
     * @param {string} skuId SKU's ID.
     * @return {CartEvent}
     * @memberof CartEvent
     */
    public withProduct(product: string, quantity = 1, skuId?: string): CartEvent {
        this.products.push({ product, quantity, skuId });
        return this;
    }

    /**
     * Add multiple product's to this cart event.
     *
     * @param {CartProduct[]} products All the products to be added.
     * @return {CartEvent}
     * @memberof CartEvent
     */
    public withProducts(products: CartProduct[]): CartEvent {
        this.products.push(...products);
        return this;
    }
}