/// <reference types="node" />
import { Commitment, PublicKey, TransactionSignature } from '@solana/web3.js';
import { DepositRecord, FundingPaymentRecord, FundingRateRecord, LiquidationRecord, NewUserRecord, OrderActionRecord, OrderRecord, SettlePnlRecord, LPRecord, InsuranceFundRecord, SpotInterestRecord, InsuranceFundStakeRecord, CurveRecord, SwapRecord } from '../index';
import { EventEmitter } from 'events';
export type EventSubscriptionOptions = {
    address?: PublicKey;
    eventTypes?: EventType[];
    maxEventsPerType?: number;
    orderBy?: EventSubscriptionOrderBy;
    orderDir?: EventSubscriptionOrderDirection;
    commitment?: Commitment;
    maxTx?: number;
    logProviderConfig?: LogProviderConfig;
    untilTx?: TransactionSignature;
};
export declare const DefaultEventSubscriptionOptions: EventSubscriptionOptions;
export type EventSubscriptionOrderBy = 'blockchain' | 'client';
export type EventSubscriptionOrderDirection = 'asc' | 'desc';
export type Event<T> = T & {
    txSig: TransactionSignature;
    slot: number;
    txSigIndex: number;
};
export type WrappedEvent<Type extends EventType> = EventMap[Type] & {
    eventType: Type;
};
export type WrappedEvents = WrappedEvent<EventType>[];
export type EventMap = {
    DepositRecord: Event<DepositRecord>;
    FundingPaymentRecord: Event<FundingPaymentRecord>;
    LiquidationRecord: Event<LiquidationRecord>;
    FundingRateRecord: Event<FundingRateRecord>;
    OrderRecord: Event<OrderRecord>;
    OrderActionRecord: Event<OrderActionRecord>;
    SettlePnlRecord: Event<SettlePnlRecord>;
    NewUserRecord: Event<NewUserRecord>;
    LPRecord: Event<LPRecord>;
    InsuranceFundRecord: Event<InsuranceFundRecord>;
    SpotInterestRecord: Event<SpotInterestRecord>;
    InsuranceFundStakeRecord: Event<InsuranceFundStakeRecord>;
    CurveRecord: Event<CurveRecord>;
    SwapRecord: Event<SwapRecord>;
};
export type EventType = keyof EventMap;
export type DriftEvent = Event<DepositRecord> | Event<FundingPaymentRecord> | Event<LiquidationRecord> | Event<FundingRateRecord> | Event<OrderRecord> | Event<OrderActionRecord> | Event<SettlePnlRecord> | Event<NewUserRecord> | Event<LPRecord> | Event<InsuranceFundRecord> | Event<SpotInterestRecord> | Event<InsuranceFundStakeRecord> | Event<CurveRecord> | Event<SwapRecord>;
export interface EventSubscriberEvents {
    newEvent: (event: WrappedEvent<EventType>) => void;
}
export type SortFn = (currentRecord: EventMap[EventType], newRecord: EventMap[EventType]) => 'less than' | 'greater than';
export type logProviderCallback = (txSig: TransactionSignature, slot: number, logs: string[], mostRecentBlockTime: number | undefined) => void;
export interface LogProvider {
    isSubscribed(): boolean;
    subscribe(callback: logProviderCallback, skipHistory?: boolean): Promise<boolean>;
    unsubscribe(external?: boolean): Promise<boolean>;
    eventEmitter?: EventEmitter;
}
export type WebSocketLogProviderConfig = {
    type: 'websocket';
    resubTimeoutMs?: number;
    maxReconnectAttempts?: number;
    fallbackFrequency?: number;
    fallbackBatchSize?: number;
};
export type PollingLogProviderConfig = {
    type: 'polling';
    frequency: number;
    batchSize?: number;
};
export type LogProviderConfig = WebSocketLogProviderConfig | PollingLogProviderConfig;