// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.24;

/// @notice Resolves and returns the appropriate verifier contract for the given outbound / inbound traffic.
interface ICrossChainVerifierResolver {
  /// @notice Returns the appropriate verifier contract based on the given verifierResults.
  /// @dev The OffRamp is responsible for calling this function using the verifierResults it receives from the executor.
  /// If the verifier specified by the executor is actually a resolver, the OffRamp will call this function to get the actual verifier contract.
  /// Verifiers can build resolvers that process the verifierResults in accordance with how their verifier forms verifierResults. For example, their verifier may
  /// prefix the verifierResults with a version identifier, which the resolver can parse to determine the correct verifier contract.
  /// @param verifierResults The verifierResults formed by the verifier.
  /// @return verifierAddress The address of the verifier contract.
  function getInboundImplementation(
    bytes calldata verifierResults
  ) external view returns (address);

  /// @notice Returns the appropriate verifier contract based on the given destChainSelector.
  /// @dev The OnRamp is responsible for calling this function using the destChainSelector specified by the sender.
  /// If the verifier specified by the sender is actually a resolver, the OnRamp will call this function to get the actual verifier contract.
  /// For example, resolvers can maintain a simple mapping of destChainSelector to verifier contract address.
  /// @param destChainSelector The destChainSelector for a message.
  /// @param extraArgs Extra arguments that can be used by the resolver to determine the correct verifier contract.
  /// @return verifierAddress The address of the verifier contract.
  function getOutboundImplementation(
    uint64 destChainSelector,
    bytes memory extraArgs
  ) external view returns (address);
}