import { Commitment, Connection, PublicKey } from "@solana/web3.js";
import { GatewayToken } from "./types";
import { NetworkFeature } from "./lib/GatewayNetworkData";
export * from "./lib/instruction";
export * from "./lib/util";
export * from "./lib/GatewayTokenData";
export * from "./lib/GatewayNetworkData";
export * from "./types";
export * from "./lib/constants";
export * from "./lib/AssignablePublicKey";
/**
 * Find all gateway tokens (optionally for a user) on a gatekeeper network, optionally filtering out revoked tokens.
 *
 * Warning - this uses the Solana getProgramAccounts RPC endpoint, which is inefficient and may be
 * blocked by some RPC services.
 *
 * @param connection A solana connection object
 * @param owner The token owner (optional)
 * @param gatekeeperNetwork The network to find a token for
 * @param {boolean=false} includeRevoked If false (default), filter out revoked tokens
 * @param page If a large number of tokens has been issued, the request to the RPC endpoint may time out.
 * In this case, enable pagination by setting page variable
 * Pagination is not supported in the RPC API per-se, but this approximates it by
 * adding another filter on the first byte of the owner address.
 * Each page requests the accounts that match that byte.
 * @returns {Promise<GatewayToken[]>} All tokens for the owner
 */
export declare const findGatewayTokens: (connection: Connection, owner: PublicKey | undefined, gatekeeperNetwork: PublicKey, includeRevoked?: boolean, page?: number) => Promise<GatewayToken[]>;
/**
 * Finds all gateway tokens for a user by iterating through the index seed
 * and requesting a page of addresses at a time.
 *
 * It assumes a small number of passes per GKN, so the page size by default is 5.
 * Sorts the result by active status and expiry, so unexpired active passes appear first
 * @param connection
 * @param owner
 * @param gatekeeperNetwork
 * @param includeRevoked
 * @param offset
 * @param page
 */
export declare const findGatewayTokensForOwnerAndNetwork: (connection: Connection, owner: PublicKey, gatekeeperNetwork: PublicKey, includeRevoked?: boolean, offset?: number, page?: number) => Promise<GatewayToken[]>;
/**
 * Get a gateway token for the owner and network, if it exists.
 * @param connection A solana connection object
 * @param owner The token owner
 * @param gatekeeperNetwork The network to find a token for
 * @param includeRevoked If false (default), filter out revoked tokens
 * @returns Promise<GatewayToken | null> A gateway token, if one exists for the owner
 */
export declare const findGatewayToken: (connection: Connection, owner: PublicKey, gatekeeperNetwork: PublicKey, includeRevoked?: boolean) => Promise<GatewayToken | null>;
/**
 * Register a callback to be called whenever a gateway token changes state
 * @param connection A solana connection object
 * @param gatewayTokenAddress The address of the gateway token
 * @param callback The callback to register
 * @param commitment The solana commitment level at which to register gateway token changes. Defaults to 'confirmed'
 * @return The subscription id
 */
export declare const onGatewayTokenChange: (connection: Connection, gatewayTokenAddress: PublicKey, callback: (gatewayToken: GatewayToken) => void, commitment?: Commitment) => number;
/**
 * Register a callback to be called whenever a gateway token is created or changes state
 * @param connection A solana connection object
 * @param owner The gateway token owner
 * @param gatekeeperNetwork
 * @param callback The callback to register
 * @param commitment The solana commitment level at which to register gateway token changes. Defaults to 'confirmed'
 * @param seed
 * @return The subscription id
 */
export declare const onGatewayToken: (connection: Connection, owner: PublicKey, gatekeeperNetwork: PublicKey, callback: (gatewayToken: GatewayToken) => void, commitment?: Commitment, seed?: number) => number;
/**
 * Lookup the gateway token at a given address
 * @param connection A solana connection object
 * @param gatewayTokenAddress The address of the gateway token
 */
export declare const getGatewayToken: (connection: Connection, gatewayTokenAddress: PublicKey) => Promise<GatewayToken | null>;
/**
 * Return true if an address feature exists.
 * @param connection
 * @param feature The feature to check
 * @param network The gatekeeper network
 */
export declare const featureExists: (connection: Connection, feature: NetworkFeature, network: PublicKey) => Promise<boolean>;