import { IkasProductOffer } from "../../../storefront-models/src";
/**
 * Checks whether the product offer is already in the cart as an ACCEPTED campaign offer for the
 * PRODUCT target page type. This is a **cart-state check** and is independent of
 * `productOffer.isSelected` (the UI toggle state set by `acceptProductOffer`). Use it to disable
 * the selection UI and show an "already in cart" state when the offer has been added.
 *
 * Example state combinations:
 * - `isSelected=true`,  `isAcceptedProductOffer=false` — user selected it in UI, not yet in cart
 * - `isSelected=true`,  `isAcceptedProductOffer=true`  — selected AND in cart (disable toggle)
 * - `isSelected=false`, `isAcceptedProductOffer=false` — deselected, not in cart
 *
 * @ai-category CampaignOffer
 * @ai-related acceptProductOffer, rejectProductOffer
 *
 * @param productOffer - The product offer to check.
 * @returns True if the offer's campaign offer is in the cart as ACCEPTED for PRODUCT target page type, false otherwise.
 *
 * @example
 * ```typescript
 * import { isAcceptedProductOffer } from "@ikas/bp-storefront";
 *
 * const accepted = isAcceptedProductOffer(productOffer);
 * if (accepted) {
 *   console.log("Offer has been accepted.");
 * }
 * ```
 */
export declare function isAcceptedProductOffer(productOffer: IkasProductOffer): boolean;
/**
 * Sets `productOffer.isSelected = true` — a **UI toggle** marking the offer as selected by the
 * user. This does NOT add the offer to the cart; cart inclusion happens through the add-to-cart
 * flow. See `isAcceptedProductOffer` for the independent cart-state check.
 *
 * @ai-category CampaignOffer
 * @ai-related isAcceptedProductOffer, rejectProductOffer
 *
 * @param productOffer - The product offer to mark as selected in the UI.
 * @returns void
 *
 * @example
 * ```typescript
 * import { acceptProductOffer } from "@ikas/bp-storefront";
 *
 * acceptProductOffer(productOffer);
 * ```
 */
export declare function acceptProductOffer(productOffer: IkasProductOffer): void;
/**
 * Rejects a product offer by setting its isSelected flag to false.
 *
 * @ai-category CampaignOffer
 * @ai-related isAcceptedProductOffer, acceptProductOffer
 *
 * @param productOffer - The product offer to reject.
 * @returns void
 *
 * @example
 * ```typescript
 * import { rejectProductOffer } from "@ikas/bp-storefront";
 *
 * rejectProductOffer(productOffer);
 * ```
 */
export declare function rejectProductOffer(productOffer: IkasProductOffer): void;