import { ethers } from 'ethers';
import { BehaviorSubject } from 'rxjs';
import { AccountInfo, ChainInfo, IProviderRpcError, SubscriptionMessage, TransferToken, WalletsNames, WalletStateProps } from '../../../models';
import { ChainIds, ERC20Names } from '../../../networks';
import { AddEthereumChainParameter, GetBalanceProps, SignProps, WatchAssetParams } from '../models';
import { IMetamaskWrapper } from '../models/interfaces';
/**
 * The client describes how to work with Metamask Extension.
 * @implements IMetamaskWrapper
 * @class
 */
export declare class MetamaskWrapper implements IMetamaskWrapper {
    static instance: MetamaskWrapper;
    static type: WalletsNames;
    /**
     * The BehaviorSubject witch return current metamask address
     * @type  {string[]}
     */
    address$: BehaviorSubject<string[]>;
    /**
     * The BehaviorSubject witch return chain
     * @type   {ChainInfo | null}
     */
    chainId$: BehaviorSubject<ChainInfo | null>;
    /**
     * The BehaviorSubject witch return current status of connect to Metamask
     * @type   {boolean}
     */
    isConnected$: BehaviorSubject<boolean>;
    subscriptionMessage$: BehaviorSubject<SubscriptionMessage | null>;
    /**
     * The BehaviorSubject witch return current errors in Metamask
     * @type   {IProviderRpcError | null}
     */
    errors$: BehaviorSubject<IProviderRpcError | null>;
    private initialObject;
    getProvider: () => Promise<ethers.providers.Web3Provider>;
    isInstalled: () => boolean;
    /**
     * Current class is Singleton
     * @constructor
     */
    constructor({ address$, chainId$, isConnected$, subscriptionMessage$, errors$, }: WalletStateProps);
    init(): Promise<boolean>;
    /**
     * Generate Ethers wallet
     * @return {object} - Object with address, mnemonic and privateKey
     * @async
     */
    generateWallet(): {
        address: string;
        mnemonic: string;
        privateKey: string;
    };
    /**
     * Connect to Metamask Extension and return current wallet address if extension exists
     * or open installation page
     * @return {Promise<string[]>} - wallet address
     * @async
     */
    connectWallet(): Promise<string[]>;
    /**
     * Get current Metamask wallet address
     * @return {Promise<string[]>} - wallet address
     * @async
     */
    getAddress(): Promise<string[]>;
    /**
     * Get balance from current wallet in native coin
     * @param {GetBalanceProps} getBalanceProps -
     * custom props if balance in custom network and address needed
     * @param {ChainIds} network
     * @param {string} address
     * @return {Promise<number[]>} - balance value
     * @async
     */
    getBalance({ network, address }: GetBalanceProps): Promise<number[]>;
    /**
     * Get balance from current wallet in native coin
     * @param {GetBalanceProps[]} accounts -
     * @return {Promise<AccountInfo[]>} - balance value
     * @async
     */
    getAccountInfo(accounts: GetBalanceProps[]): Promise<AccountInfo[]>;
    /**
     * Get Chain
     * @return {Promise<ChainInfo|null>} - Chain class with chainId and name
     * @async
     */
    getChain(): Promise<ChainInfo | null>;
    /**
     * Switch to another chain network
     * @param {ChainIds} chainId - id of Chain
     * @return {Promise<void>}
     * @async
     */
    switchNetwork(chainId: ChainIds): Promise<void>;
    /**
     * Switch to custom chain network
     * @param {AddEthereumChainParameter} network - Object of chain network
     * @return {Promise<void>}
     * @async
     */
    switchCustomNetwork(network: AddEthereumChainParameter): Promise<void>;
    /**
     * Add coin token (only ERC20 for now @metamask docs) to metamask
     * @param {CoinsTypes} token - CoinsTypes, like USDT
     * @return {Promise<boolean>}
     * @async
     */
    addToken(token: ERC20Names): Promise<boolean>;
    /**
     *  Add custom token (only ERC20 for now @metamask docs) to metamask
     * @param {WatchAssetParams} newAsset - Asset object
     * @return {Promise<boolean>}
     * @async
     */
    addCustomToken(newAsset: WatchAssetParams): Promise<boolean>;
    /**
     * Sign transaction with metamask
     * @param {SignProps} object - Sign Object with type and message
     * @return {Promise<void>}
     * @async
     */
    sign({ type, message }: SignProps): Promise<void>;
    /**
     *  Transfer native coin
     * @param {TransferToken} args
     * @return {Promise<ethers.providers.TransactionResponse | null>}
     * @async
     */
    transfer(args: TransferToken): Promise<ethers.providers.TransactionResponse | null>;
    /**
     *  Send Transaction with user's metamask
     * @param {ethers.utils.Deferrable<ethers.providers.TransactionRequest>} tx - Transaction Request
     * @return {Promise<ethers.providers.TransactionResponse>}
     * @async
     */
    sendSignedTransaction({ tx, }: {
        tx?: ethers.utils.Deferrable<ethers.providers.TransactionRequest>;
    }): Promise<ethers.providers.TransactionResponse>;
    /**
     *  Send Transaction
     * @param {ethers.utils.Deferrable<ethers.providers.TransactionRequest>} tx - Transaction Request
     * @return {Promise<ethers.providers.TransactionResponse>}
     * @async
     */
    sendTransaction(tx: string): Promise<ethers.providers.TransactionResponse>;
    addEventListener(eventFilter: ethers.providers.EventType, listener: ethers.providers.Listener): Promise<void>;
    scanQrCode(regex?: RegExp): Promise<string>;
    /**
     * Get lint for mobile metamask
     * @return {string}
     */
    getMobileLink(): string;
}