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

/**
 * Product in a order event.
 *
 * @export
 * @interface OrderProduct
 */
export interface OrderProduct {
    product: string;
    price: number;
    quantity: number;
}

/**
 * Page Confirmation Event.
 *
 * Should be used whenever the user completes an order.
 * Order ID is mandatory.
 *
 * @export
 * @class PageConfirmationEvent
 * @extends {Event}
 */
export class PageConfirmationEvent extends Event {
    public products: OrderProduct[] = [];
    public type: EventType = EventType.PageConfirmation;

    /**
     * Creates an instance of PageConfirmationEvent.
     *
     * @param {string} order
     * @param {string} locale
     * @param {string} channel
     * @param {string} session
     * @param {string} anonymous
     * @memberof PageConfirmationEvent
     */
    constructor(
        public order: string,
        public locale?: string,
        public channel?: string,
        session?: string,
        anonymous?: string,
    ) {
        super(session, anonymous);
    }

    /**
     * Add a product to this order event.
     *
     * @param {string} product Product's ID.
     * @param {number} price Product's current price.
     * @param {number} [quantity=1] Quantity bought.
     * @return {PageConfirmationEvent}
     * @memberof PageConfirmationEvent
     */
    public withProduct(product: string, price: number, quantity = 1): PageConfirmationEvent {
        this.products.push({ product, price, quantity });
        return this;
    }

    /**
     * Add a series of products to this order event.
     *
     * @param {OrderProduct[]} products All the products to be added.
     * @return {PageConfirmationEvent}
     * @memberof PageConfirmationEvent
     */
    public withProducts(products: OrderProduct[]): PageConfirmationEvent {
        this.products.push(...products);
        return this;
    }
}