// SPDX-License-Identifier: MIT
// @unsupported: ovm
pragma solidity ^0.6.8;

interface IComposableExchange {
    function swap(
        address tokenA,
        address tokenB,
        uint256 amountIn,
        uint256 amountOut,
        bytes calldata data
    ) external returns(uint256);

    function getAmountsOut(
        address tokenIn,
        address tokenOut,
        uint256 amountIn,
        bytes calldata data
    ) external view returns(uint256);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);

    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);

    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);

    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);

    function getPoolAddress(address tokenA, address tokenB) external view returns(address);
}