import type { BaseCurrencyExchange } from '../exchanges/base_exchange.js'
import type { CurrencyConfig } from '../types/index.js'

/**
 * Helper function to define currency configuration with type inference
 *
 * @example
 * ```typescript
 * const config = defineConfig({
 *   default: 'google' as const,
 *   exchanges: {
 *     google: exchanges.google({ base: 'USD' }),
 *     fixer: exchanges.fixer({ accessKey: 'your-key' })
 *   }
 * })
 * ```
 */
export function defineConfig<KnownExchanges extends Record<string, BaseCurrencyExchange>>(
  config: CurrencyConfig<KnownExchanges>
): CurrencyConfig<KnownExchanges> {
  return config
}