import { Interface } from '@ethersproject/abi';
import BigNumber from 'bignumber.js';
import { Logger } from 'log4js';
import { Address, Log } from '../../../types';
import { StatefulEventSubscriber } from '../../../stateful-event-subscriber';
import { DeepReadonly } from 'ts-essentials';
import { IDexHelper } from '../../../dex-helper';
export interface PoolState {
    A: BigNumber;
    fee: BigNumber;
    admin_fee: BigNumber;
    supply: BigNumber;
    balances: BigNumber[];
}
export declare abstract class CurvePool extends StatefulEventSubscriber<PoolState> {
    parentName: string;
    protected dexHelper: IDexHelper;
    pool: string;
    address: Address;
    tokenAddress: Address;
    protected trackCoins: boolean;
    protected abi: any;
    N_COINS: number;
    PRECISION_MUL: BigNumber[];
    USE_LENDING: boolean[];
    COINS: Address[];
    protected FEE_DENOMINATOR: BigNumber;
    protected LENDING_PRECISION: BigNumber;
    protected PRECISION: BigNumber;
    handlers: {
        [event: string]: (event: any, state: PoolState, log: Log) => PoolState;
    };
    poolIface: Interface;
    decoder: (log: Log) => any;
    constructor(parentName: string, dexHelper: IDexHelper, logger: Logger, pool: string, address: Address, tokenAddress: Address, trackCoins: boolean, abi: any, N_COINS: number, PRECISION_MUL: BigNumber[], USE_LENDING: boolean[], COINS: Address[]);
    processLog(state: DeepReadonly<PoolState>, log: Readonly<Log>): DeepReadonly<PoolState> | null;
    setup(blockNumber: number, poolState?: PoolState | null): Promise<void>;
    protected getRates(): BigNumber[];
    generateState(blockNumber?: number | 'latest'): Promise<Readonly<PoolState>>;
    handleNewParameters(event: any, state: PoolState, log: Log): PoolState;
    handleRemoveLiquidity(event: any, state: PoolState, log: Log): PoolState;
    handleRemoveLiquidityImbalances(event: any, state: PoolState, log: Log): PoolState;
    exchange(i: number, j: number, dx: BigNumber, state: PoolState): BigNumber;
    handleTokenExchange(event: any, state: PoolState, log: Log): PoolState;
    add_liquidity(amounts: BigNumber[], state: PoolState): BigNumber;
    handleAddLiquidity(event: any, state: PoolState, log: Log): PoolState;
    _get_dy_underlying(i: number, j: number, dx: BigNumber, A: BigNumber, fee: BigNumber, balances: BigNumber[], rates: BigNumber[], usefee?: boolean): BigNumber;
    get_dy_underlying(i: number, j: number, dx: BigNumber, state: Readonly<PoolState>): BigNumber;
    _get_dy(i: number, j: number, dx: BigNumber, A: BigNumber, fee: BigNumber, balances: BigNumber[], rates: BigNumber[], usefee?: boolean): BigNumber;
    get_virtual_price(state: PoolState): BigNumber;
    get_dy(i: number, j: number, dx: BigNumber, state: Readonly<PoolState>): BigNumber;
    get_D(xp: BigNumber[], amp: BigNumber): BigNumber;
    get_y(i: number, j: number, x: BigNumber, xp: BigNumber[], A: BigNumber): BigNumber;
    get_D_mem(rates: BigNumber[], balances: BigNumber[], amp: BigNumber): BigNumber;
    protected _xp(rates: BigNumber[], balances: BigNumber[]): BigNumber[];
    protected _xp_mem(rates: BigNumber[], balances: BigNumber[]): BigNumber[];
}