/**
 * Pluggable storage interface for the trading module.
 *
 * Default: better-sqlite3 (Node). Falls back to in-memory if unavailable (Bun, Deno, edge).
 * Users can pass their own implementation via TraderConfig.storage.
 */
import type { StoredCredentials, MarketMeta, OrderHistoryRow, HistoryParams } from './types.js';
export interface TradingStorage {
    getCredentials(walletAddress: string): StoredCredentials | null;
    upsertCredentials(creds: StoredCredentials): void;
    deleteCredentials(walletAddress: string): void;
    getAllCredentials(): StoredCredentials[];
    getMarketMeta(tokenId: string): MarketMeta | null;
    upsertMarketMeta(meta: MarketMeta): void;
    insertOrder(order: Omit<OrderHistoryRow, 'id'>): number;
    updateOrderStatus(id: number, status: string, orderId?: string, errorMsg?: string, responseJson?: string, feeData?: {
        feeAmountRaw?: string;
        escrowOrderId?: string;
        feeEscrowTxHash?: string;
    }): void;
    getOrderHistory(wallet: string, params?: HistoryParams): OrderHistoryRow[];
    close(): void;
}
/**
 * In-memory storage backend. Works in any runtime (Bun, Deno, Node, edge).
 * No persistence — data is lost when the process exits.
 */
export declare class InMemoryStorage implements TradingStorage {
    private credentials;
    private meta;
    private orders;
    private nextId;
    getCredentials(walletAddress: string): StoredCredentials | null;
    upsertCredentials(creds: StoredCredentials): void;
    deleteCredentials(walletAddress: string): void;
    getAllCredentials(): StoredCredentials[];
    getMarketMeta(tokenId: string): MarketMeta | null;
    upsertMarketMeta(meta: MarketMeta): void;
    insertOrder(order: Omit<OrderHistoryRow, 'id'>): number;
    updateOrderStatus(id: number, status: string, orderId?: string, errorMsg?: string, responseJson?: string, feeData?: {
        feeAmountRaw?: string;
        escrowOrderId?: string;
        feeEscrowTxHash?: string;
    }): void;
    getOrderHistory(wallet: string, params?: HistoryParams): OrderHistoryRow[];
    close(): void;
}
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