/**
 * Transaction Formatter
 *
 * Formats ZK proof into a transaction for the Railgun contract.
 * Ported from backend: utils/railgun-core/transaction/formatter.ts
 */
import type { ProofResult } from './prover';
/**
 * Commitment ciphertext structure for the contract
 */
export interface ContractCommitmentCiphertext {
    ciphertext: [string, string, string, string];
    blindedSenderViewingKey: string;
    blindedReceiverViewingKey: string;
    annotationData: string;
    memo: string;
}
export interface RailgunTransactionStruct {
    proof: {
        a: {
            x: string;
            y: string;
        };
        b: {
            x: [string, string];
            y: [string, string];
        };
        c: {
            x: string;
            y: string;
        };
    };
    merkleRoot: string;
    nullifiers: string[];
    commitments: string[];
    boundParams: {
        treeNumber: number;
        minGasPrice: string;
        unshield: number;
        chainID: string;
        adaptContract: string;
        adaptParams: string;
        commitmentCiphertext: ContractCommitmentCiphertext[];
    };
    unshieldPreimage: {
        npk: string;
        token: {
            tokenType: number;
            tokenAddress: string;
            tokenSubID: number;
        };
        value: string;
    };
}
export interface FormatUnshieldParams {
    proofResult: ProofResult;
    treeNumber: number;
    tokenAddress: string;
    recipientAddress: string;
    unshieldAmount: bigint;
    chainId: number;
}
/**
 * Format proof and inputs into Railgun contract transaction struct
 */
export declare function formatUnshieldTransaction(params: FormatUnshieldParams): RailgunTransactionStruct;
/**
 * Encode transaction for Railgun contract call
 * Returns to and data only - let wallet estimate gas
 */
export declare function encodeUnshieldTransaction(transactionStruct: RailgunTransactionStruct, chainId: number): {
    to: string;
    data: string;
};
/**
 * Build transaction ready to send
 * No hardcoded gas - wallet will estimate automatically
 */
export declare function buildUnshieldTransaction(params: FormatUnshieldParams): {
    to: string;
    data: string;
};
/**
 * Parameters for formatting a transact transaction (no unshield)
 */
export interface FormatTransactParams {
    proofResult: ProofResult;
    treeNumber: number;
    tokenAddress: string;
    chainId: number;
}
/**
 * Format proof and inputs into Railgun transaction struct for transact (no unshield)
 *
 * Key difference from unshield:
 * - unshieldPreimage.npk = 0 (tells contract this is a pure transact)
 * - Both outputs stay shielded in Railgun
 */
export declare function formatTransactTransaction(params: FormatTransactParams): RailgunTransactionStruct;
/**
 * Build transact transaction ready to send
 * No hardcoded gas - wallet will estimate automatically
 */
export declare function buildTransactTransaction(params: FormatTransactParams): {
    to: string;
    data: string;
};