// SPDX-License-Identifier: Apache-2.0
/*

  Copyright 2020 ZeroEx Intl.

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.

*/

pragma solidity ^0.6;


interface IUniswapExchangeQuotes {

    function getEthToTokenInputPrice(
        uint256 ethSold
    )
        external
        view
        returns (uint256 tokensBought);

    function getEthToTokenOutputPrice(
        uint256 tokensBought
    )
        external
        view
        returns (uint256 ethSold);

    function getTokenToEthInputPrice(
        uint256 tokensSold
    )
        external
        view
        returns (uint256 ethBought);

    function getTokenToEthOutputPrice(
        uint256 ethBought
    )
        external
        view
        returns (uint256 tokensSold);
}
