import { AxiosResponse } from "axios";
import { ethers } from "ethers";
import { KeyringPair } from "@polkadot/keyring/types";
import { Signer } from "@polkadot/types/types";
import { ERC20, ZebecCard } from "./artifacts";
import { SupportedChain } from "./chains";
import { Quote, Recipient } from "./types";
type APIConfig = {
    apiKey: string;
    encryptionKey: string;
};
export declare class ZebecCardService {
    readonly signer: ethers.Signer;
    readonly zebecCard: ZebecCard;
    readonly usdcToken: ERC20;
    readonly chainId: SupportedChain;
    private readonly apiService;
    constructor(signer: ethers.Signer, chainId: number, apiConfig: APIConfig, sdkOptions?: {
        sandbox?: boolean;
    });
    /**
     * Fetches a quote for the given amount.
     *
     * @param {string | number} amount - The amount for which to fetch the quote.
     * @returns {Promise<Quote>} A promise that resolves to a Quote object.
     */
    fetchQuote(amount: string | number): Promise<Quote>;
    /**
     * Transfer specified amount from user's vault balance to card vault with some fee amount for card purchase.
     * @param params
     * @returns
     */
    purchaseCard(params: {
        amount: string;
        recipient: Recipient;
        quote: Quote;
    }): Promise<[
        ethers.ContractTransactionResponse,
        ethers.ContractTransactionResponse,
        AxiosResponse
    ]>;
}
export declare class ZebecCardTAOService {
    readonly signer: Signer | KeyringPair;
    private apiService;
    private taoRPC;
    private chainId;
    /**
     * Constructs an instance of the service.
     *
     * @param {Signer} signer - The signer which can be either a PolkadotJs Signer or a KeyringPair.
     * @param {APIConfig} apiConfig - The configuration object for the API.
     * @param sdkOptions - Optional configuration for the SDK.
     */
    constructor(signer: Signer | KeyringPair, apiConfig: APIConfig, sdkOptions?: {
        sandbox?: boolean;
    });
    /**
     * Fetches a quote for the given amount.
     *
     * @param {string | number} amount - The amount for which to fetch the quote.
     * @returns {Promise<Quote>} A promise that resolves to a Quote object.
     */
    fetchQuote(amount: string | number): Promise<Quote>;
    /**
     * Fetches the TAO Vault address.
     *
     * @returns {Promise<string>} A promise that resolves to the TAO Vault address.
     */
    fetchTAOVault(): Promise<string>;
    /**
     * Purchases a card by transferring TAO tokens.
     *
     * @param params - The parameters required to purchase a card.
     * @param params.walletAddress - The wallet address from which TAO tokens will be transferred.
     * @param params.amount - The amount of TAO tokens to transfer.
     * @param {Recipient} params.recipient - The recipient details.
     * @param {Quote} params.quote - The quote details.
     *
     * @returns A promise that resolves to an array containing the transaction details and the API response.
     * @throws {InvalidEmailError} If the recipient's email address is invalid.
     * @throws {Error} If the quote is invalid or expired, if there is not enough balance, or if the transaction fails.
     */
    purchaseCard(params: {
        walletAddress: string;
        amount: string;
        recipient: Recipient;
        quote: Quote;
    }): Promise<[
        {
            txHash: string;
            blockHash: string;
        },
        AxiosResponse
    ]>;
}
export {};