import { SKDB } from '../lib/ipfs/ipfs.interface';
import { CID } from 'multiformats';
import BigNumber from 'bignumber.js';
import { Address } from './address';
interface AccountMeta {
    codeCid?: Account['codeCid'];
    owner?: Account['owner'];
    account: Account['account'];
    contribute: Account['contribute'];
    nonce: Account['nonce'];
    balance: Account['balance'];
    storageRoot: Account['storageRoot'];
}
export declare class Account {
    constructor(meta: AccountMeta);
    account: Address;
    nonce: BigNumber;
    contribute: BigNumber;
    private balance;
    storageRoot: CID;
    codeCid?: CID;
    owner?: string;
    /**
     * 用存储account 数据的 cid string生成一个account实例
     * @param db
     * @param cid
     * @returns
     */
    static fromCid: (db: SKDB, cid: string) => Promise<Account>;
    setNextNonce: () => void;
    /**
     * 获取当前账户余额
     * @returns
     */
    getBlance: () => BigNumber;
    /**
     * 支出余额
     * @param amount
     * @returns
     */
    minusBlance: (amount: BigNumber) => "dont have such amount to minus" | undefined;
    /**
     * 余额增加
     * @param amount
     */
    plusBlance: (amount: BigNumber, ts: string) => void;
    updateState: (cid: CID) => void;
    commit: (db: SKDB) => Promise<CID>;
}
export declare const newAccount: (did: string, storageRoot: CID, codeCid?: CID | undefined, owner?: string | undefined) => Account;
export {};