/**
 *Submitted for verification at Etherscan.io on 2022-03-02
*/

// File contracts/libraries/SafeMath.sol

pragma solidity 0.7.5;


library SafeMath {

    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        return c;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }

    function sqrrt(uint256 a) internal pure returns (uint c) {
        if (a > 3) {
            c = a;
            uint b = add( div( a, 2), 1 );
            while (b < c) {
                c = b;
                b = div( add( div( a, b ), b), 2 );
            }
        } else if (a != 0) {
            c = 1;
        }
    }
}


// File contracts/libraries/Address.sol

pragma solidity 0.7.5;


library Address {

    function isContract(address account) internal view returns (bool) {

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return _functionCallWithValue(target, data, 0, errorMessage);
    }

    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }

    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            if (returndata.length > 0) {

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }

    function addressToString(address _address) internal pure returns(string memory) {
        bytes32 _bytes = bytes32(uint256(_address));
        bytes memory HEX = "0123456789abcdef";
        bytes memory _addr = new bytes(42);

        _addr[0] = '0';
        _addr[1] = 'x';

        for(uint256 i = 0; i < 20; i++) {
            _addr[2+i*2] = HEX[uint8(_bytes[i + 12] >> 4)];
            _addr[3+i*2] = HEX[uint8(_bytes[i + 12] & 0x0f)];
        }

        return string(_addr);

    }
}


// File contracts/interfaces/IERC20.sol

pragma solidity 0.7.5;

interface IERC20 {
    function decimals() external view returns (uint8);

    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

    function transfer(address recipient, uint256 amount) external returns (bool);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 amount) external returns (bool);

    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    event Transfer(address indexed from, address indexed to, uint256 value);

    event Approval(address indexed owner, address indexed spender, uint256 value);
}


// File contracts/libraries/SafeERC20.sol


pragma solidity 0.7.5;


library SafeERC20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    function safeApprove(IERC20 token, address spender, uint256 value) internal {

        require((value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).add(value);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function _callOptionalReturn(IERC20 token, bytes memory data) private {

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) { // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}


// File contracts/types/Ownable.sol


pragma solidity 0.7.5;

contract Ownable {

    address public policy;

    constructor () {
        policy = msg.sender;
    }

    modifier onlyPolicy() {
        require( policy == msg.sender, "Ownable: caller is not the owner" );
        _;
    }
    
    function transferManagment(address _newOwner) external onlyPolicy() {
        require( _newOwner != address(0) );
        policy = _newOwner;
    }
}


// File contracts/OlympusProCustomTreasury.sol

pragma solidity 0.7.5;


contract CustomTreasury is Ownable {
    
    /* ======== DEPENDENCIES ======== */
    
    using SafeERC20 for IERC20;
    using SafeMath for uint;
    
    
    /* ======== STATE VARIABLS ======== */
    
    address public immutable payoutToken;

    mapping(address => bool) public bondContract; 
    
    /* ======== EVENTS ======== */

    event BondContractWhitelisted(address bondContract);
    event BondContractDewhitelisted(address bondContract);
    event Withdraw(address token, address destination, uint amount);
    
    /* ======== CONSTRUCTOR ======== */

    constructor(address _payoutToken, address _initialOwner) {
        require( _payoutToken != address(0) );
        payoutToken = _payoutToken;
        require( _initialOwner != address(0) );
        policy = _initialOwner;
    }

    /* ======== BOND CONTRACT FUNCTION ======== */

    /**
     *  @notice bond contract recieves payout tokens
     *  @param _amountPayoutToken uint
     */
    function sendPayoutTokens(uint _amountPayoutToken) external {
        require(bondContract[msg.sender], "msg.sender is not a bond contract");
        IERC20(payoutToken).safeTransfer(msg.sender, _amountPayoutToken);
    }

    /* ======== VIEW FUNCTION ======== */
    
    /**
    *   @notice returns payout token valuation of priciple
    *   @param _principalTokenAddress address
    *   @param _amount uint
    *   @return value_ uint
     */
    function valueOfToken( address _principalTokenAddress, uint _amount ) public view returns ( uint value_ ) {
        // convert amount to match payout token decimals
        value_ = _amount.mul( 10 ** IERC20( payoutToken ).decimals() ).div( 10 ** IERC20( _principalTokenAddress ).decimals() );
    }


    /* ======== POLICY FUNCTIONS ======== */

    /**
     *  @notice policy can withdraw ERC20 token to desired address
     *  @param _token uint
     *  @param _destination address
     *  @param _amount uint
     */
    function withdraw(address _token, address _destination, uint _amount) external onlyPolicy() {
        IERC20(_token).safeTransfer(_destination, _amount);
        emit Withdraw(_token, _destination, _amount);
    }

    /**
        @notice whitelist bond contract
        @param _bondContract address
     */
    function whitelistBondContract(address _bondContract) external onlyPolicy() {
        bondContract[_bondContract] = true;
        emit BondContractWhitelisted(_bondContract);
    }

    /**
        @notice dewhitelist bond contract
        @param _bondContract address
     */
    function dewhitelistBondContract(address _bondContract) external onlyPolicy() {
        bondContract[_bondContract] = false;
        emit BondContractDewhitelisted(_bondContract);
    }
    
}