//#region extensions/crypto/src/services/gas-estimator.d.ts
/**
 * Gas Estimation Service — real-time gas prices, cost estimation, and
 * gas-inclusive swap comparison.
 *
 * Provides:
 * - Multi-chain gas price tracking (fast/standard/slow)
 * - Transaction cost estimation in USD
 * - Gas-inclusive swap comparison (net output = output - gas cost)
 * - EIP-1559 priority fee estimation
 * - Historical gas trend tracking
 *
 * Uses on-chain RPC calls for accurate data, not third-party gas APIs.
 */
interface GasPrice {
  /** Base fee in gwei. */
  baseFee: number;
  /** Slow priority fee in gwei (10th percentile). */
  slow: number;
  /** Standard priority fee in gwei (50th percentile). */
  standard: number;
  /** Fast priority fee in gwei (90th percentile). */
  fast: number;
  /** Total gas price for slow/standard/fast (baseFee + priority). */
  totalSlow: number;
  totalStandard: number;
  totalFast: number;
  /** Chain native token price in USD. */
  nativeTokenPriceUsd: number;
  chain: string;
  chainId: number;
  timestamp: number;
}
interface GasCostEstimate {
  /** Gas units for this operation. */
  gasUnits: number;
  /** Cost at slow speed in USD. */
  costSlowUsd: number;
  /** Cost at standard speed in USD. */
  costStandardUsd: number;
  /** Cost at fast speed in USD. */
  costFastUsd: number;
  /** Cost in native token (standard speed). */
  costNativeToken: number;
  operation: string;
}
interface SwapComparison {
  aggregator: string;
  outputAmount: string;
  outputValueUsd: number;
  gasCostUsd: number;
  netOutputUsd: number;
  rank: number;
}
interface GasEstimatorConfig {
  /** Number of recent blocks to sample for priority fees. Default: 5. */
  blockSamples?: number;
  /** Cache TTL for gas prices in ms. Default: 12000 (12s, ~1 block). */
  cacheTtlMs?: number;
}
/** Typical gas limits for common EVM operations. */
declare const GAS_LIMITS: Record<string, number>;
declare class GasEstimator {
  private config;
  private cache;
  constructor(config?: GasEstimatorConfig);
  /**
   * Get current gas prices for a chain (with caching).
   * Uses EIP-1559 fee history for accurate priority fee estimation.
   */
  getGasPrice(chainId?: number): Promise<GasPrice>;
  /**
   * Estimate the gas cost for a specific operation in USD.
   */
  estimateCost(operation: keyof typeof GAS_LIMITS | number, chainId?: number): Promise<GasCostEstimate>;
  /**
   * Compare swap quotes with gas costs factored in.
   * Takes raw aggregator quotes and produces a gas-inclusive ranking.
   */
  compareSwapsGasInclusive(quotes: Array<{
    aggregator: string;
    buyAmount: string;
    buyTokenPriceUsd: number;
    buyTokenDecimals: number;
    gasEstimate?: string;
  }>, chainId?: number): Promise<SwapComparison[]>;
  /**
   * Get gas cost estimates for common operations on a chain.
   * Useful for the `/gas` command or a setup screen.
   */
  getCommonCosts(chainId?: number): Promise<{
    gasPrice: GasPrice;
    costs: GasCostEstimate[];
  }>;
  /** Clear the gas price cache. */
  clearCache(): void;
  private averageReward;
  private getNativeTokenPrice;
}
declare function getGasEstimator(config?: GasEstimatorConfig): GasEstimator;
declare function resetGasEstimator(): void;
//#endregion
export { GAS_LIMITS, GasCostEstimate, GasEstimator, GasEstimatorConfig, GasPrice, SwapComparison, getGasEstimator, resetGasEstimator };
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