import { ApiPromise } from "@polkadot/api";
import { AccountId, H256 } from "@polkadot/types/interfaces";
import { Network } from "bitcoinjs-lib";
import { Bytes } from "@polkadot/types";
import { AddressOrPair } from "@polkadot/api/types";
import { RefundRequest } from "../interfaces";
import { ElectrsAPI } from "../external";
import { DefaultTransactionAPI, TransactionAPI } from "./transaction";
export interface RefundRequestExt extends Omit<RefundRequest, "btc_address"> {
    btc_address: string;
}
export declare function encodeRefundRequest(req: RefundRequest, network: Network): RefundRequestExt;
/**
 * @category PolkaBTC Bridge
 * The type Big represents DOT or PolkaBTC denominations,
 * while the type BN represents Planck or Satoshi denominations.
 */
export interface RefundAPI extends TransactionAPI {
    /**
     * Execute a refund request
     * @remarks If `txId` is not set, the `merkleProof` and `rawTx` must both be set.
     *
     * @param refundId The ID generated by the refund request transaction
     * @param txId (Optional) The ID of the Bitcoin transaction that refunds a user in case of overpayment
     * @param merkleProof (Optional) The merkle inclusion proof of the Bitcoin transaction.
     * @param rawTx (Optional) The raw bytes of the Bitcoin transaction
     */
    execute(refundId: string, btcTxId?: string, merkleProof?: Bytes, rawTx?: Bytes): Promise<void>;
    /**
     * @returns An array containing the refund requests
     */
    list(): Promise<RefundRequestExt[]>;
    /**
     * @param account The ID of the account whose refund requests are to be retrieved
     * @returns A mapping from the refund ID to the refund request, corresponding to the given account
     */
    mapForUser(account: AccountId): Promise<Map<H256, RefundRequestExt>>;
    /**
     * @param issueId The ID of the refund to fetch
     * @returns A refund object
     */
    getRequestById(refundId: H256): Promise<RefundRequestExt>;
    /**
     * @param issueId The ID of the refund request to fetch
     * @returns A refund request object
     */
    getRequestByIssueId(issueId: H256): Promise<RefundRequestExt>;
    /**
     * Set an account to use when sending transactions from this API
     * @param account Keyring account
     */
    setAccount(account: AddressOrPair): void;
}
export declare class DefaultRefundAPI extends DefaultTransactionAPI implements RefundAPI {
    private btcNetwork;
    private electrsAPI;
    constructor(api: ApiPromise, btcNetwork: Network, electrsAPI: ElectrsAPI, account?: AddressOrPair);
    execute(requestId: string, btcTxId?: string, merkleProof?: Bytes, rawTx?: Bytes): Promise<void>;
    list(): Promise<RefundRequestExt[]>;
    mapForUser(account: AccountId): Promise<Map<H256, RefundRequestExt>>;
    getRequestById(refundId: H256): Promise<RefundRequestExt>;
    getRequestByIssueId(issueId: H256): Promise<RefundRequestExt>;
}