import type { PublicKey } from "@solana/web3.js";
import { Decimal } from "decimal.js";
import type { Graph } from "ngraph.graph";
export interface Price {
    quote: string;
    base: string;
    price: Decimal;
}
export interface TokenInfo {
    address: string;
    symbol: string;
    decimals: number;
}
export interface PriceProvider {
    prices(): Promise<Array<Price>>;
}
export interface TokenProvider {
    tokens(): Promise<Array<TokenInfo>>;
}
export declare class ExchangeRate {
    readonly priceProviders: PriceProvider[];
    readonly tokenProviders: TokenProvider[];
    readonly graph: Graph;
    private _rates;
    private _symbolTokenMapping;
    private _addressTokenMapping;
    constructor(priceProvider: PriceProvider, tokenProvider: TokenProvider);
    load(): Promise<ExchangeRate>;
    addPriceProvider(provider: PriceProvider): ExchangeRate;
    addTokenProvider(provider: TokenProvider): ExchangeRate;
    tokenInfo(key: string | PublicKey): TokenInfo | undefined;
    price(base: string | PublicKey, quote: string | PublicKey): Decimal | undefined;
    swap(base: string | PublicKey, quote: string | PublicKey, amount: Decimal): Decimal | undefined;
    lamportsSwap(base: string | PublicKey, quote: string | PublicKey, lamports: Decimal): Decimal | undefined;
    toLamports(token: string | PublicKey, amount: Decimal): Decimal | undefined;
    toAmount(token: string | PublicKey, amount: Decimal): Decimal | undefined;
    private _price;
    private _directPrice;
    private _pathPrice;
}
//# sourceMappingURL=exchangeRate.d.ts.map