/**
 * @pwngh/economy-lab
 *
 * Copyright (c) Preston Neal
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE.md file in the root directory of this source tree.
 *
 * @license MIT
 */
import type { Rates } from '../ports.js';
/**
 * Holds the three CREDIT-to-USD rates a deployment configures for its {@link Rates} dual-rate credit
 * economy. Each rate is two integers (`rate` and `scale`), so conversion stays free of
 * floating-point error. These are business constants a deployment sets, not a live market feed.
 *
 * @see {@link https://economy-lab-docs.pages.dev/economy/concepts/money-model/ The money model} for
 *   what the buy, par, and payout rates mean and how the buy-par spread funds the platform.
 * @see {@link https://economy-lab-docs.pages.dev/economy/ports/rates/ Rates} for the port these feed.
 */
export interface RatesConfig {
    buyRate: bigint;
    buyScale: number;
    parRate: bigint;
    parScale: number;
    payoutRate: bigint;
    payoutScale: number;
}
/**
 * Builds the production CREDIT-to-USD rate source from a deployment's configured rates, replacing the
 * 1:1 dev placeholder. Each returned rate carries a `rateId` naming the exact rate so a transaction
 * can record which one it priced against.
 *
 * Same-currency conversion returns 1:1. Only CREDIT and USD exist, so any other pair is a wiring bug
 * and throws.
 *
 * Construction asserts buy >= par >= payout (each read as USD per credit across its own scale) and
 * throws `CONFIG.INVALID` when the order fails: a credit that could cash out for more than it was
 * bought or backed at would drain the platform, so a misconfigured deployment fails at wiring, not
 * at the first cash out.
 *
 * @example
 * // Example rates: buy at ~120 credits/USD ($0.00833), backed and cashed out at ~200/USD ($0.005),
 * // a ~40% spread:
 * const rates = configuredRates({
 *   buyRate: 8333n, buyScale: 6,
 *   parRate: 5n, parScale: 3,
 *   payoutRate: 5n, payoutScale: 3,
 * });
 *
 * @see {@link https://economy-lab-docs.pages.dev/economy/ports/rates/ Rates} for the dual-rate
 *   credit economy this rate source feeds.
 */
export declare function configuredRates(config: RatesConfig): Rates;