import type { PaymentAction, PaymentEffectEvent, PaymentFlowEvent, PaymentMethod, PaymentPayParams, PaymentProvider, PaymentReader, PaymentRefundParams, PaymentRequestClient, PaymentResult } from '../types';
export declare type PaymentFlowKind = 'sci' | 'spi' | 'walletpass';
export declare type PaymentOperation = 'pay' | 'refund';
/** Session 持有的最小 Flow 契约。 */
export interface PaymentFlow {
    pay(params: PaymentPayParams): void;
    refund(params: PaymentRefundParams): void;
    action(action: PaymentAction, inputValues?: Record<string, string>): void;
    destroy(): void;
}
export interface PaymentFlowContext {
    sessionId: string;
    paymentMethod: PaymentMethod;
    paymentProvider: PaymentProvider;
    salesId: string;
    operation: PaymentOperation;
    number: string;
    requestUniqueIdempotencyToken: string;
    request: PaymentRequestClient;
    emit: (event: PaymentFlowEvent) => void;
}
export declare type SciProcessingEvent = Extract<PaymentFlowEvent, {
    type: 'processing' | 'signature';
}>;
export interface SciResponseContext {
    operation: PaymentOperation;
    response: PaymentResult;
    reader?: PaymentReader;
}
export interface SciResponseOutput {
    event?: SciProcessingEvent;
    effects?: PaymentEffectEvent[];
    version?: string | number;
}
/** SCI 实例化时按 provider 注入该转换器。 */
export declare type SciResponseHandler = (context: SciResponseContext) => SciResponseOutput;
export interface SciPaymentFlowOptions extends PaymentFlowContext {
    responseHandler: SciResponseHandler;
}
export declare type PaymentFlowFactory = (kind: PaymentFlowKind, context: PaymentFlowContext) => PaymentFlow;
export declare const resolvePaymentFlowKind: (paymentMethod: PaymentMethod, paymentProvider: PaymentProvider) => PaymentFlowKind;
/** 本期只接通 MX51 SCI；其他路线保持显式未实现。 */
export declare const createPaymentFlow: PaymentFlowFactory;