import React from 'react';
declare type HolderActionSource = 'auto' | 'select' | 'scan';
/** 与 Voucher/index SaleDetailDiscount 对齐，避免循环依赖。 */
declare type HolderDiscount = {
    id: number | string;
    [key: string]: any;
};
export interface PendingHolderAction {
    source: HolderActionSource;
    discount: HolderDiscount;
    applyAfterSave?: boolean;
    selectValue?: {
        id: number | string;
        isSelected: boolean;
    };
    /** 扫码来源时保留原始码，Holder 绑定后重新扫码以写入 discountList 并重算。 */
    scanCode?: string;
}
/** Holder 弹窗客户：优先订单真实客户，walk-in 时回落到折扣卡 machinecode.customer_id。 */
export declare function resolveHolderModalCustomerId(orderCustomerId?: number, discount?: HolderDiscount): number | undefined;
export interface DiscountCardHolderProviderProps {
    children: React.ReactNode;
    customerId?: number;
    discountList?: HolderDiscount[];
    getDiscountList?: () => HolderDiscount[];
    scanPromotionCode?: (code: string, customerId?: number) => Promise<any>;
    setDiscountSelected?: (params: {
        discountId: number;
        isSelected: boolean;
    }) => Promise<void>;
    patchDiscountCardHolderOnStore?: (targetDiscount: HolderDiscount, holderId: number | string) => Promise<void>;
    onDiscountListRefresh?: () => void;
    holderPromptRecheckKey?: string | number;
    variant?: string;
}
interface DiscountCardHolderContextValue {
    enqueueHolderAction: (action: PendingHolderAction) => void;
    registerScanCodeClearHandler: (handler: (() => void) | null) => void;
    registerSelectFlowEndHandler: (handler: (() => void) | null) => void;
    holderMissingCount: number;
    openHolderListModal: () => void;
}
/** 读取折扣卡 Holder 队列（须在 DiscountCardHolderProvider 内使用）。 */
export declare function useDiscountCardHolder(): DiscountCardHolderContextValue;
export declare function useOptionalDiscountCardHolder(): DiscountCardHolderContextValue | null;
export declare function DiscountCardHolderPrompt(): React.JSX.Element | null;
/**
 * 常驻 Holder 宿主：负责 auto/select/scan 触发的 Holder 补全弹窗。
 * 须始终挂载（不可随 Promotion 弹窗 destroyOnClose），否则选客户后无法及时提示。
 */
export declare function DiscountCardHolderProvider({ children, customerId, discountList, getDiscountList, scanPromotionCode, setDiscountSelected, patchDiscountCardHolderOnStore, onDiscountListRefresh, holderPromptRecheckKey, variant, }: DiscountCardHolderProviderProps): React.JSX.Element;
export {};