@node-dlc/core/dist/dlc/TxBuilder.d.ts

DLC Core

import { Tx } from '@node-dlc/bitcoin';
import { DlcAcceptWithoutSigs, DlcOffer, FundingInput } from '@node-dlc/messaging';
export declare const DUST_LIMIT: bigint;
export declare class DlcTxBuilder {
    readonly dlcOffer: DlcOffer;
    readonly dlcAccept: DlcAcceptWithoutSigs;
    constructor(dlcOffer: DlcOffer, dlcAccept: DlcAcceptWithoutSigs);
    buildFundingTransaction(): Tx;
}
export declare class BatchDlcTxBuilder {
    readonly dlcOffers: DlcOffer[];
    readonly dlcAccepts: DlcAcceptWithoutSigs[];
    constructor(dlcOffers: DlcOffer[], dlcAccepts: DlcAcceptWithoutSigs[]);
    /**
     * Calculates the maximum collateral that can be used given a set of funding inputs
     * for exact-amount DLC scenarios (no change outputs).
     *
     * @param fundingInputs The inputs to be used for funding
     * @param feeRatePerVb Fee rate in satoshis per virtual byte
     * @param numContracts Number of DLC contracts being created (default: 1)
     * @returns Maximum collateral amount in satoshis
     *
     * @example
     * ```typescript
     * // Calculate max collateral for DLC splicing scenario
     * const dlcFundingInput = getDlcFundingInput(); // 970,332 sats
     * const additionalInput = getAdditionalInput(); // 100,000 sats
     * const inputs = [dlcFundingInput, additionalInput];
     *
     * const maxCollateral = BatchDlcTxBuilder.calculateMaxCollateral(
     *   inputs,
     *   BigInt(1), // 1 sat/vB fee rate
     *   1 // Single DLC contract
     * );
     *
     * // Use maxCollateral in DLC offer to ensure exact amount with no change
     * const dlcOffer = createDlcOffer(contractInfo, maxCollateral, ...);
     * ```
     */
    static calculateMaxCollateral(fundingInputs: FundingInput[], feeRatePerVb: bigint, numContracts?: number): bigint;
    buildFundingTransaction(): Tx;
    private ensureSameFundingInputs;
    private arraysEqual;
}