/*

    Copyright 2020 DODO ZOO.
    SPDX-License-Identifier: Apache-2.0

*/

pragma solidity 0.6.9;
pragma experimental ABIEncoderV2;

interface IDSP {
    function init(
        address maintainer,
        address baseTokenAddress,
        address quoteTokenAddress,
        uint256 lpFeeRate,
        address mtFeeRateModel,
        uint256 i,
        uint256 k,
        bool isOpenTWAP
    ) external;

    function _BASE_TOKEN_() external view returns (address);

    function _QUOTE_TOKEN_() external view returns (address);

    function _I_() external view returns (uint256);

    function _MT_FEE_RATE_MODEL_() external view returns (address);

    function getVaultReserve() external view returns (uint256 baseReserve, uint256 quoteReserve);

    function sellBase(address to) external returns (uint256);

    function sellQuote(address to) external returns (uint256);

    function buyShares(address to) external returns (uint256,uint256,uint256);
}