import { PublicKey, Keypair, Connection } from '@solana/web3.js';
import type { TossUser, TossUserContext } from './types/tossUser';
import type { OfflineTransaction } from './types/nonceAccount';
import { type ArciumEncryptedOutput } from './internal/arciumHelper';
/**
 * Status of an intent in its lifecycle
 */
export type IntentStatus = 'pending' | 'settled' | 'failed' | 'expired';
/**
 * Core type for an offline intent following TOSS specification
 * Enhanced with durable nonce account support
 */
export interface SolanaIntent {
    id: string;
    from: string;
    to: string;
    fromUser?: TossUserContext;
    toUser?: TossUserContext;
    amount: number;
    nonce: number;
    expiry: number;
    signature: string;
    status: IntentStatus;
    createdAt: number;
    updatedAt: number;
    error?: string;
    blockhash?: string;
    feePayer?: string;
    signatures?: string[];
    serialized?: string;
    nonceAccount?: string;
    nonceAuth?: string;
    nonceAccountAddress?: string;
    nonceAccountAuth?: string;
    offlineTransaction?: OfflineTransaction;
    requiresBiometric?: boolean;
    encrypted?: ArciumEncryptedOutput;
}
/**
 * Options for creating a new intent
 */
export interface CreateIntentOptions {
    /** Whether to encrypt the transaction details using Arcium */
    privateTransaction?: boolean;
    /** Program ID for Arcium encryption */
    mxeProgramId?: PublicKey;
    /** Provider for blockchain access */
    provider?: any;
    /** Expiry time in seconds from now (default: 1 hour) */
    expiresIn?: number;
    /** Custom nonce (auto-generated if not provided) */
    nonce?: number;
    /** Keypair for the nonce account (for durable transactions) */
    nonceAccount?: Keypair;
    /** Public key authorized to use the nonce account */
    nonceAuth?: PublicKey;
    /** Fee payer for the transaction (defaults to sender) */
    feePayer?: PublicKey | string;
    /** Optional minimal user contexts for sender and recipient */
    fromUser?: TossUserContext;
    toUser?: TossUserContext;
}
/**
 * Manages nonce values for transaction replay protection
 */
declare class NonceManager {
    private nonceStore;
    private readonly NONCE_EXPIRY;
    getNextNonce(publicKey: PublicKey, connection: Connection): Promise<number>;
    private extractNonceFromAccountInfo;
    private cleanupNonces;
}
export declare const nonceManager: NonceManager;
/**
 * Creates a signed intent between two TOSS users (User-centric API)
 * Recommended for application developers - validates user wallets
 *
 * GAP #8 FIX: Requires biometric authentication for sensitive transactions
 */
export declare function createUserIntent(senderUser: TossUser, senderKeypair: Keypair, recipientUser: TossUser, amount: number, connection: Connection, options?: CreateIntentOptions): Promise<SolanaIntent>;
/**
 * Creates a signed intent that can be verified offline
 */
export declare function createSignedIntent(sender: Keypair, recipient: PublicKey, amount: number, connection: Connection, options?: CreateIntentOptions): Promise<SolanaIntent>;
/**
 * Verifies the signature, nonce, and expiry of an intent
 */
export declare function verifyIntent(intent: SolanaIntent, connection?: Connection): Promise<boolean>;
/**
 * Creates an offline Solana intent following TOSS specification.
 * If privateTransaction is true, encrypts internal data with Arcium.
 */
export declare function createIntent(sender: Keypair, recipient: PublicKey, amount: number, connection: Connection, options?: CreateIntentOptions): Promise<SolanaIntent>;
/**
 * Checks if an intent has expired
 */
export declare function isIntentExpired(intent: SolanaIntent): boolean;
/**
 * Updates the status of an intent
 */
export declare function updateIntentStatus(intent: SolanaIntent, status: IntentStatus, error?: string): SolanaIntent;
/**
 * Creates an offline intent with durable nonce account support
 * Enables replay-protected offline transactions using nonce accounts
 * Requires biometric authentication for enhanced security
 */
export declare function createOfflineIntent(senderUser: TossUser, senderKeypair: Keypair, recipientUser: TossUser, amount: number, nonceAccountInfo: any, // NonceAccountInfo from NonceAccountManager
connection: Connection, options?: CreateIntentOptions): Promise<SolanaIntent>;
export {};
//# sourceMappingURL=intent.d.ts.map