import { PoolToken as PoolTokenContract } from "@tracer-protocol/perpetual-pools-contracts/types";
import BigNumber from "bignumber.js";
import { providers as MCProvider } from '@0xsequence/multicall';
import { ethers } from "ethers";
import { SideEnum } from "..";
import { IToken } from "./token";
/**
 * PoolToken class constructor inputs
 */
export interface IPoolToken extends IToken {
    pool: string;
    side: SideEnum;
}
export default class PoolToken {
    _contract?: PoolTokenContract;
    address: string;
    provider: ethers.providers.Provider | ethers.Signer | undefined;
    multicallProvider: MCProvider.MulticallProvider | ethers.Signer | undefined;
    name: string;
    symbol: string;
    decimals: number;
    pool: string;
    side: SideEnum;
    supply: BigNumber;
    /**
     * @private
     */
    private constructor();
    /**
     * Replacement constructor pattern to support async initialisations
     * @param tokenINfo {@link IPoolToken | IPoolToken interface props}
     * @returns a Promise containing an initialised PoolToken class ready to be used
     */
    static Create: (tokenInfo: IPoolToken) => Promise<PoolToken>;
    /**
     * Creates an empty PoolToken that can be used as a default
     * @returns default constructed pool token
     */
    static CreateDefault: () => PoolToken;
    /**
     * Private initialisation function called in {@link PoolToken.Create}
     * @param tokenInfo {@link IPoolToken | IPoolToken interface props}
     */
    private init;
    /**
     * Fetch an accounts balance for this token
     * @param account Account to check balance of
     * @returns The accounts balance formatted in a BigNumber
     */
    fetchBalance: (account: string) => Promise<BigNumber>;
    /**
     * Fetch an accounts allowance for a given spender
     * @param account Account to check allowance
     * @param spender Spender of the accounts tokens
     * @returns the allowance the account has given to the spender address to spend this pool token
     */
    fetchAllowance: (spender: string, account: string) => Promise<BigNumber>;
    /**
     * Fetch and set the total token supply
     * @returns most up to date token supply
     */
    fetchSupply: () => Promise<BigNumber>;
    /**
     * Approve a spender to spend the signers accounts pool tokens
     * @param spender the address of the contract that will spend the pool tokens
     * @param amount the amount the signer is allowing the spender to spend
     * @returns an ethers transaction
     */
    approve: (spender: string, amount: number | BigNumber) => Promise<ethers.ContractTransaction>;
    /**
     * Replaces the provider and connects the contract instance
     * @param provider The new provider to connect to
     */
    connect: (provider: ethers.providers.Provider | ethers.Signer) => void;
}