import Web3 from "web3";
import { BigNumber } from 'bignumber.js';
import { Wallet } from "./wallet";
import { Network } from "./network";
export interface Currency {
    addr: string;
    decimals: number;
    symbol: string;
    name: string;
}
export declare function getCurrency(w3: Web3, addr: string): Promise<Currency>;
export interface CurrencyValue {
    /**
     * 原始金额
     */
    rawValue: BigNumber;
    /**
     * 货币
     */
    currency: Currency;
    /**
     * 显示金额
     */
    value: string;
    /**
     * 对应美元金额
     */
    usd?: CurrencyValue | null;
}
/**
 * 新建货币金额
 * @param value 显示金额
 * @param currency 货币
 * @returns
 */
export declare function newValue(value: string, currency: Currency): CurrencyValue;
/**
 * 新建货币金额
 * @param rawValue 原始金额
 * @param currency 货币
 * @returns
 */
export declare function newRawValue(rawValue: BigNumber, currency: Currency): CurrencyValue;
/**
 * 货币兑换
 * @param w3
 * @param chainId
 * @param from
 * @param to
 * @param rawValue
 */
export declare function exchange(w: Wallet, from: Currency, to: Currency, rawValue: BigNumber): Promise<CurrencyValue | null>;
export declare function getCurrencyByWallet(w: Wallet, symbol: string): Currency | undefined;
export declare function getCurrencyByNetwork(network: Network, symbol: string): Currency | undefined;
export declare function getCurrencyByAddress(chainId: string, addr: string): Currency | undefined;
export declare function calculateValue(value: CurrencyValue): Promise<CurrencyValue>;
export declare function optimizeRawValue(rawValue: BigNumber): string;
//# sourceMappingURL=currency.d.ts.map