import type { BuildPsbtOptions } from '../types';
import { MempoolApiService } from './MempoolApiService';
/**
 * Service for building Bitcoin PSBTs
 */
export declare class PsbtBuilderService {
    private mempoolApiService;
    constructor(mempoolApiService: MempoolApiService);
    /**
     * Filters out Taproot (P2TR) UTXOs to prevent accidental spending of Ordinals/Runes
     * Since we only support Native SegWit (P2WPKH), we ensure the account address is not Taproot
     * @param accountAddress - The account address to check
     * @param utxos - Array of UTXOs to filter
     * @returns Filtered array of UTXOs (only P2WPKH compatible)
     */
    private filterTaprootUTXOs;
    /**
     * Selects UTXOs using Largest-First (Accumulator) strategy
     * Sorts UTXOs by value (descending) and selects until we have enough to cover amount + fees
     * @param utxos - Available UTXOs
     * @param targetAmount - Target amount including fees and dust limit
     * @returns Selected UTXOs
     */
    private selectUTXOsLargestFirst;
    /**
     * Calculates the total value of UTXOs
     * @param utxos - Array of UTXOs
     * @returns Total value in satoshis
     */
    private calculateUTXOTotal;
    /**
     * Validates and ensures sufficient funds for the transaction
     * @param selectedUTXOs - Initially selected UTXOs
     * @param allUTXOs - All available UTXOs
     * @param selectedTotal - Total value of selected UTXOs
     * @param amountInSatoshisNumber - Transaction amount
     * @param feeEstimate - Estimated fee
     * @returns Validated selected UTXOs
     * @throws {DynamicError} If insufficient funds
     */
    private validateAndSelectUTXOs;
    /**
     * Calculates fee estimate and change amount, handling dust limit
     * @param accountAddress - Account address for fee estimation
     * @param selectedUTXOs - Selected UTXOs
     * @param selectedTotalValue - Total value of selected UTXOs
     * @param amountInSatoshis - Transaction amount
     * @param feePriority - Fee priority level
     * @returns Object with feeEstimate, changeAmount, changeAmountNumber, and hasChangeOutput
     */
    private calculateFeeAndChange;
    /**
     * Adds inputs to PSBT from selected UTXOs
     * @param psbt - PSBT to add inputs to
     * @param selectedUTXOs - Selected UTXOs
     * @param publicKeyPair - ECPair public key pair
     * @param network - Bitcoin network
     */
    private addInputsToPsbt;
    /**
     * Adds outputs to PSBT (recipient and optionally change)
     * @param psbt - PSBT to add outputs to
     * @param recipientAddress - Recipient address
     * @param accountAddress - Account address for change
     * @param amountInSatoshisNumber - Transaction amount
     * @param changeAmountNumber - Change amount
     * @param hasChangeOutput - Whether to include change output
     * @param network - Bitcoin network
     */
    private addOutputsToPsbt;
    /**
     * Builds a PSBT for a Bitcoin transaction with real UTXOs
     * Uses Largest-First UTXO selection strategy with accurate vSize fee estimation
     * @param options - Options for building the PSBT
     * @returns A PSBT in Base64 format
     * @throws {DynamicError} If insufficient funds, no UTXOs, or other errors
     */
    buildPsbt(options: BuildPsbtOptions): Promise<string>;
    /**
     * Helper method to create BuildPsbtOptions from transaction and account details
     * @param accountAddress - The account address
     * @param transaction - The Bitcoin transaction (must have amount and recipientAddress)
     * @param publicKeyHex - The public key in hex format
     * @param feePriority - Optional fee priority (defaults to 'medium')
     * @returns BuildPsbtOptions
     */
    static createBuildOptions(accountAddress: string, transaction: {
        amount: bigint;
        recipientAddress: string;
    }, publicKeyHex: string, feePriority?: 'high' | 'medium' | 'low'): BuildPsbtOptions;
}