/**
 * Legacy data.ts — thin shim over the provider registry.
 *
 * Keeps the historical `string | Data` error-by-string return convention so
 * the existing callers (`trading.ts`, `tools/index.ts` wiring into
 * `LiveExchange`) keep working without a call-site rewrite. New code should
 * import from `./providers/registry.js` and consume `PriceData | ProviderError`
 * directly — the structured error shape enables UI color-coding and retry
 * classification the string convention can't express.
 */
import type { AssetClass, MarketCode } from './providers/standard-models.js';
export interface PriceData {
    price: number;
    change24h: number;
    volume24h: number;
    marketCap: number;
}
export interface OHLCVData {
    closes: number[];
    timestamps: number[];
}
export interface TrendingCoin {
    id: string;
    name: string;
    symbol: string;
    marketCapRank: number | null;
}
export interface MarketCoin {
    id: string;
    symbol: string;
    name: string;
    price: number;
    change24h: number;
    marketCap: number;
    volume24h: number;
}
export declare function resolveId(ticker: string): string;
/**
 * Look up a spot price. `assetClass` defaults to 'crypto' so all existing
 * crypto-only callers (`TradingSignal`, `LiveExchange.getPrice`) behave
 * exactly as before. Pass 'fx' / 'commodity' / 'stock' (plus a `market`
 * code for stocks) to hit the multi-asset Gateway endpoints.
 */
export declare function getPrice(ticker: string, assetClass?: AssetClass, market?: MarketCode): Promise<PriceData | string>;
/** Convenience: FX pair lookup (e.g. "EUR-USD"). */
export declare function getFxPrice(ticker: string): Promise<PriceData | string>;
/** Convenience: commodity lookup (e.g. "XAU-USD" for gold). */
export declare function getCommodityPrice(ticker: string): Promise<PriceData | string>;
/** Convenience: stock lookup (e.g. "AAPL" on market "us"). */
export declare function getStockPrice(ticker: string, market: MarketCode): Promise<PriceData | string>;
export declare function getOHLCV(ticker: string, days?: number): Promise<OHLCVData | string>;
export declare function getTrending(): Promise<TrendingCoin[] | string>;
export declare function getMarketOverview(): Promise<MarketCoin[] | string>;