export interface OrderBumpPreview {
    savings: number;
    savingsPct: number;
    currency: string;
    selectedOffers: {
        productId: string | null;
        variantId: string | null;
        isSelected: boolean;
    }[];
}
export interface UseOrderBumpOptions {
    checkoutSessionId?: string;
    offerId: string;
    orderBumpType?: 'primary' | 'secondary' | 'vip';
    autoPreview?: boolean;
}
export interface UseOrderBumpResult {
    isSelected: boolean;
    preview: OrderBumpPreview | null;
    savings: number | null;
    isLoading: boolean;
    isToggling: boolean;
    error: Error | null;
    toggle: (selected?: boolean) => Promise<{
        success: boolean;
        error?: any;
    }>;
    refreshPreview: () => Promise<void>;
}
export declare function useOrderBump(options: UseOrderBumpOptions): UseOrderBumpResult;