import { a as ProductFields } from './payloads-BYtydfZU.mjs';

/**
 * Mapper Interfaces
 *
 * Abstract interfaces for backend data mappers.
 * Each backend (Shopify, custom, etc.) implements these interfaces
 * to translate platform-specific data into ProductFields and event payloads.
 */

/**
 * Maps platform-specific cart items to ProductFields.
 */
interface CartItemMapper<TCartItem = unknown> {
    /** Convert a single cart item to ProductFields */
    toProductFields(item: TCartItem): ProductFields;
    /** Convert an array of cart items to ProductFields[] */
    toProductFieldsList(items: TCartItem[]): ProductFields[];
    /** Calculate total cart value from items */
    calculateCartValue(items: TCartItem[]): number;
    /** Get currency code from items (or default) */
    getCurrency(items: TCartItem[], defaultCurrency?: string): string;
}
/**
 * Maps platform-specific product data to ProductFields.
 */
interface ProductMapper<TProduct = unknown> {
    /** Convert a product to ProductFields */
    toProductFields(product: TProduct, variantIndex?: number): ProductFields;
}
/**
 * Maps platform-specific order data to purchase event payload.
 * Output uses Meta-canonical field names.
 */
interface OrderMapper<TOrder = unknown> {
    /** Convert an order to purchase event payload fields */
    toPurchasePayload(order: TOrder): {
        content_ids: string[];
        content_type: string;
        currency: string;
        value: number;
        num_items: number;
        contents: Array<{
            id: string;
            quantity: number;
            item_price: number;
        }>;
        order_id: string;
        tax?: number;
        shipping?: number;
        coupon?: string;
    };
}

export type { CartItemMapper as C, OrderMapper as O, ProductMapper as P };