pragma solidity ^0.5.0;

interface I_P1Trader {
	/**
	 * @notice Returns the result of the trade between the maker and the taker. Expected to be
	 *  called by PerpetualV1. Reverts if the trade is disallowed.
	 *
	 * @param  sender       The address that called the `trade()` function of PerpetualV1.
	 * @param  maker        The address of the passive maker account.
	 * @param  taker        The address of the active taker account.
	 * @param  price        The current oracle price of the underlying asset.
	 * @param  data         Arbitrary data passed in to the `trade()` function of PerpetualV1.
	 * @param  traderFlags  Any flags that have been set by other I_P1Trader contracts during the
	 *                      same call to the `trade()` function of PerpetualV1.
	 * @return              The result of the trade from the perspective of the taker.
	 */
	function trade(
		address sender,
		address maker,
		address taker,
		uint256 price,
		bytes calldata data,
		bytes32 traderFlags
	) external returns (P1Types.TradeResult memory);
}