// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {BitUtils} from '../tools/math/BitUtils.sol';
import {IRemoteAccessBitmask} from './interfaces/IRemoteAccessBitmask.sol';

/**
 * @title AccessHelper
 * @dev Wrapper around IRemoteAccessBitmask
 */
library AccessHelper {
  using BitUtils for uint256;

  function getAcl(IRemoteAccessBitmask remote, address subject) internal view returns (uint256) {
    return remote.queryAccessControlMask(subject, ~uint256(0));
  }

  function queryAcl(
    IRemoteAccessBitmask remote,
    address subject,
    uint256 filterMask
  ) internal view returns (uint256) {
    return remote.queryAccessControlMask(subject, filterMask);
  }

  function hasAnyOf(
    IRemoteAccessBitmask remote,
    address subject,
    uint256 flags
  ) internal view returns (bool) {
    return queryAcl(remote, subject, flags).hasAnyOf(flags);
  }

  function hasAllOf(
    IRemoteAccessBitmask remote,
    address subject,
    uint256 flags
  ) internal view returns (bool) {
    return queryAcl(remote, subject, flags).hasAllOf(flags);
  }

  function hasNoneOf(
    IRemoteAccessBitmask remote,
    address subject,
    uint256 flags
  ) internal view returns (bool) {
    return queryAcl(remote, subject, flags).hasNoneOf(flags);
  }

  function hasAny(IRemoteAccessBitmask remote, address subject) internal view returns (bool) {
    return remote.queryAccessControlMask(subject, 0) != 0;
  }

  function hasNone(IRemoteAccessBitmask remote, address subject) internal view returns (bool) {
    return remote.queryAccessControlMask(subject, 0) == 0;
  }
}