import { PublicKey } from '@solana/web3.js';
import BN from 'bn.js';
/**
 * Slab information for discovery
 */
export interface SlabInfo {
    address: PublicKey;
    lpOwner: PublicKey;
    instrument: PublicKey;
    markPx: BN;
    takerFeeBps: BN;
    contractSize: BN;
    seqno: number;
}
/**
 * Instrument information (v0: returns 1 per slab, future: up to 32)
 */
export interface InstrumentInfo {
    index: number;
    pubkey: PublicKey;
    markPx: BN;
    contractSize: BN;
    takerFeeBps: BN;
}
/**
 * Quote level (price and size)
 */
export interface QuoteLevel {
    price: BN;
    size: BN;
}
/**
 * Best bid/ask prices from QuoteCache
 */
export interface BestPrices {
    bid: QuoteLevel | null;
    ask: QuoteLevel | null;
    spread: BN | null;
    spreadBps: BN | null;
}
/**
 * Quote cache structure (read directly from slab account)
 */
export interface QuoteCache {
    seqnoSnapshot: number;
    bids: QuoteLevel[];
    asks: QuoteLevel[];
}