contract DydxFlashloanBase {
    using SafeMath for uint256;

    // -- Internal Helper functions -- //

    function _getMarketIdFromTokenAddress(address _solo, address token) internal view returns (uint256) {
        ISoloMargin solo = ISoloMargin(_solo);

        uint256 numMarkets = solo.getNumMarkets();

        address curToken;
        for (uint256 i = 0; i < numMarkets; i++) {
            curToken = solo.getMarketTokenAddress(i);

            if (curToken == token) {
                return i;
            }
        }

        revert("No marketId found for provided token");
    }


    function _getAccountInfo() internal view returns (Account.Info memory) {
        return Account.Info({owner: address(this), number: 1});
    }

    function _getWithdrawAction(uint256 marketId, uint256 amount) internal view returns (Actions.ActionArgs memory) {
        return
            Actions.ActionArgs({
                actionType: Actions.ActionType.Withdraw,
                accountId: 0,
                amount: Types.AssetAmount({
                    sign: false,
                    denomination: Types.AssetDenomination.Wei,
                    ref: Types.AssetReference.Delta,
                    value: amount
                }),
                primaryMarketId: marketId,
                secondaryMarketId: 0,
                otherAddress: address(this),
                otherAccountId: 0,
                data: ""
            });
    }

    function _getCallAction(bytes memory data) internal view returns (Actions.ActionArgs memory) {
        return
            Actions.ActionArgs({
                actionType: Actions.ActionType.Call,
                accountId: 0,
                amount: Types.AssetAmount({sign: false, denomination: Types.AssetDenomination.Wei, ref: Types.AssetReference.Delta, value: 0}),
                primaryMarketId: 0,
                secondaryMarketId: 0,
                otherAddress: address(this),
                otherAccountId: 0,
                data: data
            });
    }

    function _getDepositAction(uint256 marketId, uint256 amount) internal view returns (Actions.ActionArgs memory) {
        return
            Actions.ActionArgs({
                actionType: Actions.ActionType.Deposit,
                accountId: 0,
                amount: Types.AssetAmount({
                    sign: true,
                    denomination: Types.AssetDenomination.Wei,
                    ref: Types.AssetReference.Delta,
                    value: amount
                }),
                primaryMarketId: marketId,
                secondaryMarketId: 0,
                otherAddress: address(this),
                otherAccountId: 0,
                data: ""
            });
    }
}
function _getMarketIdFromTokenAddress(address _solo, address token) internal view returns (uint256) {
    ISoloMargin solo = ISoloMargin(_solo);

    uint256 numMarkets = solo.getNumMarkets();

    address curToken;
    for (uint256 i = 0; i < numMarkets; i++) {
        curToken = solo.getMarketTokenAddress(i);

        if (curToken == token) {
            return i;
        }
    }

    revert("No marketId found for provided token");
}

// -- Internal Helper functions -- //