import { Contract, TransactionReceipt } from 'ethers';
import { ReferralTier, ReferralDiscount } from '../types';
import { BaseSigner } from '../signers/base';
/**
 * Referral Operations RPC
 * Handles referral program functionality including codes, tiers, and discounts
 */
export declare class ReferralOperationsRPC {
    private referralContract;
    private signer?;
    constructor(referralContract: Contract, signer?: BaseSigner | undefined);
    /**
     * Get referral information for a trader
     * @param account - Trader address
     * @returns Referral code and referrer address
     */
    getTraderReferralInfo(account: string): Promise<{
        code: string;
        referrer: string;
    }>;
    /**
     * Get referrer tier
     * @param account - Referrer address
     * @returns Tier ID
     */
    getReferrerTier(account: string): Promise<number>;
    /**
     * Get tier information
     * @param tierId - Tier ID
     * @returns Tier information with fee discount and rebate percentages
     */
    getTierInfo(tierId: number): Promise<ReferralTier>;
    /**
     * Calculate referral discount for a trader and fee
     * @param account - Trader address
     * @param fee - Original fee amount
     * @returns Discount information
     */
    getTraderReferralDiscount(account: string, fee: number): Promise<ReferralDiscount>;
    /**
     * Set referral code for the caller
     * @param code - Referral code (max 32 characters)
     * @returns Transaction receipt
     */
    setReferralCode(code: string): Promise<TransactionReceipt | null>;
    /**
     * Check if an account has a referral code set
     * @param account - Trader address
     * @returns True if referral code is set
     */
    hasReferralCode(account: string): Promise<boolean>;
    /**
     * Get effective fee after referral discount
     * @param account - Trader address
     * @param baseFee - Base fee amount
     * @returns Effective fee after discount
     */
    getEffectiveFee(account: string, baseFee: number): Promise<number>;
    /**
     * Helper method to sign and send transactions
     */
    private signAndSend;
    /**
     * Set signer for transactions
     */
    setSigner(signer: BaseSigner): void;
}