/**
 * SQLite storage for credentials, market metadata, and order history.
 *
 * Uses better-sqlite3 as an optional peer dependency (same as cache module).
 */
import type { StoredCredentials, MarketMeta, OrderHistoryRow, HistoryParams } from './types.js';
import type { TradingStorage } from './storage.js';
export declare class TradingSqliteBackend implements TradingStorage {
    private db;
    constructor(dbPath: string);
    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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