/// <reference types="node" />
/// <reference types="node" />
import { SpotMarketAccount, PerpMarketAccount, OracleSource, StateAccount, UserAccount, UserStatsAccount, InsuranceFundStake } from '../types';
import StrictEventEmitter from 'strict-event-emitter-types';
import { EventEmitter } from 'events';
import { Context, PublicKey } from '@solana/web3.js';
import { Account } from '@solana/spl-token';
import { OracleInfo, OraclePriceData } from '..';
export interface AccountSubscriber<T> {
    dataAndSlot?: DataAndSlot<T>;
    subscribe(onChange: (data: T) => void): Promise<void>;
    fetch(): Promise<void>;
    unsubscribe(): Promise<void>;
    setData(userAccount: T, slot?: number): void;
}
export interface ProgramAccountSubscriber<T> {
    subscribe(onChange: (accountId: PublicKey, data: T, context: Context) => void): Promise<void>;
    unsubscribe(): Promise<void>;
}
export declare class NotSubscribedError extends Error {
    name: string;
}
export interface DriftClientAccountEvents {
    stateAccountUpdate: (payload: StateAccount) => void;
    perpMarketAccountUpdate: (payload: PerpMarketAccount) => void;
    spotMarketAccountUpdate: (payload: SpotMarketAccount) => void;
    oraclePriceUpdate: (publicKey: PublicKey, data: OraclePriceData) => void;
    userAccountUpdate: (payload: UserAccount) => void;
    update: void;
    error: (e: Error) => void;
}
export interface DriftClientMetricsEvents {
    txSigned: void;
}
export interface DriftClientAccountSubscriber {
    eventEmitter: StrictEventEmitter<EventEmitter, DriftClientAccountEvents>;
    isSubscribed: boolean;
    subscribe(): Promise<boolean>;
    fetch(): Promise<void>;
    unsubscribe(): Promise<void>;
    addPerpMarket(marketIndex: number): Promise<boolean>;
    addSpotMarket(marketIndex: number): Promise<boolean>;
    addOracle(oracleInfo: OracleInfo): Promise<boolean>;
    getStateAccountAndSlot(): DataAndSlot<StateAccount>;
    getMarketAccountAndSlot(marketIndex: number): DataAndSlot<PerpMarketAccount> | undefined;
    getMarketAccountsAndSlots(): DataAndSlot<PerpMarketAccount>[];
    getSpotMarketAccountAndSlot(marketIndex: number): DataAndSlot<SpotMarketAccount> | undefined;
    getSpotMarketAccountsAndSlots(): DataAndSlot<SpotMarketAccount>[];
    getOraclePriceDataAndSlot(oraclePublicKey: PublicKey): DataAndSlot<OraclePriceData> | undefined;
    updateAccountLoaderPollingFrequency?: (pollingFrequency: number) => void;
}
export interface UserAccountEvents {
    userAccountUpdate: (payload: UserAccount) => void;
    update: void;
    error: (e: Error) => void;
}
export interface UserAccountSubscriber {
    eventEmitter: StrictEventEmitter<EventEmitter, UserAccountEvents>;
    isSubscribed: boolean;
    subscribe(userAccount?: UserAccount): Promise<boolean>;
    fetch(): Promise<void>;
    updateData(userAccount: UserAccount, slot: number): void;
    unsubscribe(): Promise<void>;
    getUserAccountAndSlot(): DataAndSlot<UserAccount>;
}
export interface TokenAccountEvents {
    tokenAccountUpdate: (payload: Account) => void;
    update: void;
    error: (e: Error) => void;
}
export interface TokenAccountSubscriber {
    eventEmitter: StrictEventEmitter<EventEmitter, TokenAccountEvents>;
    isSubscribed: boolean;
    subscribe(): Promise<boolean>;
    fetch(): Promise<void>;
    unsubscribe(): Promise<void>;
    getTokenAccountAndSlot(): DataAndSlot<Account>;
}
export interface InsuranceFundStakeAccountSubscriber {
    eventEmitter: StrictEventEmitter<EventEmitter, InsuranceFundStakeAccountEvents>;
    isSubscribed: boolean;
    subscribe(): Promise<boolean>;
    fetch(): Promise<void>;
    unsubscribe(): Promise<void>;
    getInsuranceFundStakeAccountAndSlot(): DataAndSlot<InsuranceFundStake>;
}
export interface InsuranceFundStakeAccountEvents {
    insuranceFundStakeAccountUpdate: (payload: InsuranceFundStake) => void;
    update: void;
    error: (e: Error) => void;
}
export interface OracleEvents {
    oracleUpdate: (payload: OraclePriceData) => void;
    update: void;
    error: (e: Error) => void;
}
export interface OracleAccountSubscriber {
    eventEmitter: StrictEventEmitter<EventEmitter, OracleEvents>;
    isSubscribed: boolean;
    subscribe(): Promise<boolean>;
    fetch(): Promise<void>;
    unsubscribe(): Promise<void>;
    getOraclePriceData(): DataAndSlot<OraclePriceData>;
}
export type AccountToPoll = {
    key: string;
    publicKey: PublicKey;
    eventType: string;
    callbackId?: string;
    mapKey?: number;
};
export type OraclesToPoll = {
    publicKey: PublicKey;
    source: OracleSource;
    callbackId?: string;
};
export type BufferAndSlot = {
    slot: number;
    buffer: Buffer | undefined;
};
export type DataAndSlot<T> = {
    data: T;
    slot: number;
};
export interface UserStatsAccountEvents {
    userStatsAccountUpdate: (payload: UserStatsAccount) => void;
    update: void;
    error: (e: Error) => void;
}
export interface UserStatsAccountSubscriber {
    eventEmitter: StrictEventEmitter<EventEmitter, UserStatsAccountEvents>;
    isSubscribed: boolean;
    subscribe(userStatsAccount?: UserStatsAccount): Promise<boolean>;
    fetch(): Promise<void>;
    unsubscribe(): Promise<void>;
    getUserStatsAccountAndSlot(): DataAndSlot<UserStatsAccount>;
}