Contract Address Details

// SPDX-License-Identifier: agpl-3.0

pragma solidity 0.7.6;
pragma experimental ABIEncoderV2;

import "../../../dependencies/openzeppelin/contracts/SafeMath.sol";
import "../helpers/Errors.sol";
import "../types/DataTypes.sol";

library TokenConfigsLogic {
    using SafeMath for uint256;
    using TokenConfigsLogic for DataTypes.TokenConfigs;

    function version() public pure returns (uint256) {
        return 1;
    }

    function setTokenConfig(
        DataTypes.TokenConfigs storage tokenConfigs,
        address _token,
        DataTypes.TokenConfig calldata tokenConfig
    ) public {
        require(tokenConfig.isWhitelisted, Errors.TCL_TOKEN_NOT_WHITELISTED);
        require(tokenConfig.weight > 0, Errors.TCL_INVALID_TOKEN_WEIGHT);

        // increment token count for the first time
        if (!tokenConfigs.tokenConfigs[_token].isWhitelisted) {
            tokenConfigs.allWhitelistedTokens.push(_token);
        }

        uint256 _totalTokenWeights = tokenConfigs.totalTokenWeights.sub(
            tokenConfigs.tokenConfigs[_token].weight
        );

        tokenConfigs.tokenConfigs[_token] = tokenConfig;

        tokenConfigs.totalTokenWeights = _totalTokenWeights.add(
            tokenConfig.weight
        );
    }

    function clearTokenConfig(
        DataTypes.TokenConfigs storage tokenConfigs,
        address _token
    ) public {
        require(
            tokenConfigs.tokenConfigs[_token].isWhitelisted,
            Errors.TCL_TOKEN_NOT_WHITELISTED
        );
        tokenConfigs.totalTokenWeights = tokenConfigs.totalTokenWeights.sub(
            tokenConfigs.tokenConfigs[_token].weight
        );
        delete tokenConfigs.tokenConfigs[_token];
        uint256 lengthMinus1 = tokenConfigs.allWhitelistedTokens.length - 1;
        for (uint256 i = 0; i < lengthMinus1; i++) {
            // no need to compare last element
            // if no match, it's the target to be removed
            // otherwise, its value will be saved in target's slot
            if (tokenConfigs.allWhitelistedTokens[i] == _token) {
                tokenConfigs.allWhitelistedTokens[i] = tokenConfigs
                    .allWhitelistedTokens[lengthMinus1];
                break;
            }
        }
        tokenConfigs.allWhitelistedTokens.pop();
    }

    function validateTokens(
        DataTypes.TokenConfigs storage tokenConfigs,
        address _collateralToken,
        address _indexToken,
        bool _isLong
    ) public view {
        if (_isLong) {
            require(
                _collateralToken == _indexToken,
                Errors.TCL_MISMATCHED_TOKENS
            );
            require(
                tokenConfigs.tokenConfigs[_collateralToken].isWhitelisted,
                Errors.TCL_COLLATERAL_TOKEN_NOT_WHITELISTED
            );
            require(
                !tokenConfigs.tokenConfigs[_collateralToken].isStable,
                Errors.TCL_COLLATERAL_TOKEN_MUST_NOT_BE_STABLE
            );
            return;
        }

        require(
            tokenConfigs.tokenConfigs[_collateralToken].isWhitelisted,
            Errors.TCL_COLLATERAL_TOKEN_NOT_WHITELISTED
        );
        require(
            tokenConfigs.tokenConfigs[_collateralToken].isStable,
            Errors.TCL_COLLATERAL_TOKEN_MUST_BE_STABLE
        );
        require(
            !tokenConfigs.tokenConfigs[_indexToken].isStable,
            Errors.TCL_INDEX_TOKEN_MUST_NOT_BE_STABLE
        );
        require(
            tokenConfigs.tokenConfigs[_indexToken].isShortable,
            Errors.TCL_INDEX_TOKEN_NOT_SHORTABLE
        );
    }
}
        

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b)
        internal
        pure
        returns (bool, uint256)
    {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b)
        internal
        pure
        returns (bool, uint256)
    {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b)
        internal
        pure
        returns (bool, uint256)
    {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b)
        internal
        pure
        returns (bool, uint256)
    {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b)
        internal
        pure
        returns (bool, uint256)
    {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    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;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}
          

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.7.6;

library Errors {
    uint256 public constant V_TOKEN_NOT_WHITELISTED = 14; // Vault: token not whitelisted
    uint256 public constant V_INVALID_TOKEN_AMOUNT = 15; // Vault: invalid tokenAmount
    uint256 public constant V_INVALID_USDPH_AMOUNT = 18; // Vault: invalid usdphAmount
    uint256 public constant V_INVALID_REDEMPTION_AMOUNT = 21; // Vault: invalid redemptionAmount
    uint256 public constant V_INVALID_AMOUNT_OUT = 22; // Vault: invalid amountOut
    uint256 public constant V_SWAPS_NOT_ENABLED = 23; // Vault: swaps not enabled
    uint256 public constant V_SAME_TOKEN = 26; // Vault: same token in and out
    uint256 public constant V_INVALID_AMOUNT_IN = 27; // Vault: invalid amountIn
    uint256 public constant V_INSUFFICIENT_COLLATERAL_FOR_FEES = 29; // Vault: insufficient collateral for fees
    uint256 public constant V_INVALID_POSITION_SIZE = 30; // Vault: invalid position.size
    uint256 public constant V_EMPTY_POSITION = 31; // Vault: empty position
    uint256 public constant V_POSITION_SIZE_EXCEEDED = 32; // Vault: position size exceeded
    uint256 public constant V_POSITION_COLLATERAL_EXCEEDED = 33; // Vault: position collateral exceeded
    uint256 public constant V_INVALID_LIQUIDATOR = 34; // Vault: invalid liquidator
    uint256 public constant V_POSITION_CANNOT_BE_LIQUIDATED = 36; // Vault: position cannot be liquidated
    uint256 public constant V_COLLATERAL_SHOULD_BE_WITHDRAWN = 39; // Vault: collateral should be withdrawn
    uint256 public constant V_SIZE_MUST_BE_MORE_THAN_COLLATERAL = 40; // Vault: size must be more than collateral
    uint256 public constant V_POOL_AMOUNT_EXCEEDS_BALANCE = 49; // Vault: pool amount exceeds balance
    uint256 public constant V_RESERVE_EXCEEDS_POOL = 50; // Vault: reserve exceeds pool
    uint256 public constant V_MAX_USDPH_EXCEEDED = 51; // Vault: max USDPH exceeded
    uint256 public constant V_NOT_PHLP_MANAGER = 54; // Vault: caller is not PHLP Manager
    uint256 public constant V_POOL_LESS_THAN_BUFFER = 100; // Vault: poolAmount < bufferAmount
    uint256 public constant V_MAX_SHORTS_EXCEEDED = 101; // Vault: max shorts exceeded
    uint256 public constant V_NOT_CONFIGURATOR = 102; // Vault: caller is not the vault configurator
    uint256 public constant V_NOT_ROUTER = 103; // Vault: caller is not the router

    string public constant VC_INVALID_STAKING_BPS = "1"; // VaultConfigurator: invalid stakingBps
    string public constant VC_INVALID_MAX_LEVERAGE = "2"; // VaultConfigurator: invalid maxLeverage
    string public constant VC_INVALID_TAX_BPS = "3"; // VaultConfigurator: invalid taxBps
    string public constant VC_INVALID_STABLE_TAX_BPS = "4"; // VaultConfigurator: invalid stableTaxBps
    string public constant VC_INVALID_MINT_BURN_FEE_BPS = "5"; // VaultConfigurator: invalid mintBurnFeeBps
    string public constant VC_INVALID_SWAP_FEE_BPS = "6"; // VaultConfigurator: invalid swapFeeBps
    string public constant VC_INVALID_STABLE_SWAP_FEE_BPS = "7"; // VaultConfigurator: invalid stableSwapFeeBps
    string public constant VC_INVALID_MARGIN_FEE_BPS = "8"; // VaultConfigurator: invalid marginFeeBps
    string public constant VC_INVALID_LIQUIDATION_FEE_USD = "9"; // VaultConfigurator: invalid _liquidationFeeUsd
    string public constant VC_INVALID_FUNDING_INTERVAL = "10"; // VaultConfigurator: invalid fundingInterval
    string public constant VC_INVALID_FUNDING_RATE_FACTOR = "11"; // VaultConfigurator: invalid fundingRateFactor
    string public constant VC_INVALID_STABLE_FUNDING_RATE_FACTOR = "12"; // VaultConfigurator: invalid stableFundingRateFactor
    string public constant VC_TOKEN_NOT_WHITELISTED = "13"; // VaultConfigurator: token not whitelisted

    string public constant VU_LEVERAGE_NOT_ENABLED = "28"; // VaultUtil: leverage not enabled
    string public constant VU_INVALID_AVERAGE_PRICE = "38"; // VaultUtil: invalid averagePrice
    string public constant VU_INVALID_MSG_SENDER = "41"; // VaultUtil: invalid msg.sender

    string public constant TCL_MISMATCHED_TOKENS = "42"; // TokenConfigsLogic: mismatched tokens
    string public constant TCL_COLLATERAL_TOKEN_NOT_WHITELISTED = "43"; // TokenConfigsLogic: collateralToken not whitelisted
    string public constant TCL_COLLATERAL_TOKEN_MUST_NOT_BE_STABLE = "44"; // TokenConfigsLogic: collateralToken must not be a stableToken
    string public constant TCL_COLLATERAL_TOKEN_MUST_BE_STABLE = "46"; // TokenConfigsLogic: collateralToken must be a stableToken
    string public constant TCL_INDEX_TOKEN_MUST_NOT_BE_STABLE = "47"; // TokenConfigsLogic: indexToken must not be a stableToken
    string public constant TCL_INDEX_TOKEN_NOT_SHORTABLE = "48"; // TokenConfigsLogic: indexToken not shortable
    string public constant TCL_TOKEN_NOT_WHITELISTED = "200"; // TokenConfigsLogic: token not whitelisted
    string public constant TCL_INVALID_TOKEN_WEIGHT = "201"; // TokenConfigsLogic: invalid token weight
}
          

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.7.6;

library DataTypes {
    struct VaultConfig {
        bool isSwapEnabled;
        bool isLeverageEnabled;
        uint256 maxLeverage;
        // fees
        uint256 taxBps;
        uint256 stableTaxBps;
        uint256 mintBurnFeeBps;
        uint256 swapFeeBps;
        uint256 stableSwapFeeBps;
        uint256 marginFeeBps;
        uint256 liquidationFeeUsd;
        uint256 minProfitTime;
        bool hasDynamicFees;
        // staking
        uint256 stakingBps;
        // funding rate
        uint256 fundingInterval;
        uint256 fundingRateFactor;
        uint256 stableFundingRateFactor;
    }

    struct TokenConfig {
        // should always be true if token exists
        bool isWhitelisted;
        // basic parameters
        uint256 decimals;
        uint256 weight; // customisation of index composition
        uint256 minProfitBps;
        uint256 maxUsdphAmount; // a max amount of USDPH debt for a token
        bool isStable;
        bool isShortable;
        // risk parameters
        // bufferAmount allows specification of an amount to exclude from swaps
        // this can be used to ensure a certain amount of liquidity is available for leverage positions
        uint256 bufferAmount;
        uint256 maxGlobalShortSize;
    }

    struct TokenConfigs {
        uint256 totalTokenWeights;
        address[] allWhitelistedTokens;
        mapping(address => TokenConfig) tokenConfigs;
    }
}