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// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a >= b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow, so we distribute
        return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2);
    }
}


/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor () internal {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}


/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}


/**
 * @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;
    }
}


/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

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

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    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");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highblue=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    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");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    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);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    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);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    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 {
            // 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);
            }
        }
    }
}


/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
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));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        // solhint-disable-next-line max-line-length
        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));
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        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");
        }
    }
}

interface IMultiRewardPool {
    function reward() external view returns (address);

    function multiRewardLength() external view returns (uint256);

    function multiRewards() external view returns (address[] memory);

    function deposit(uint256 _pid, uint256 _amount) external;

    function withdraw(uint256 _pid, uint256 _amount) external;

    function withdrawAll(uint256 _pid) external;

    function harvestAllRewards() external;

    function pendingReward(uint256 _pid, address _user)
    external
    view
    returns (uint256);

    function pendingMultiRewards(uint256 _pid, address _user)
    external
    view
    returns (uint256[] memory);

    function pendingAllRewards(address _user) external view returns (uint256);

    function pendingAllMultiRewards(address _user)
    external
    view
    returns (uint256[] memory);

    function totalAllocPoint() external view returns (uint256);

    function poolLength() external view returns (uint256);

    function getPoolInfo(uint256 _pid)
    external
    view
    returns (address _lp, uint256 _allocPoint);

    function getRewardPerSecond() external view returns (uint256);

    function getMultiRewardPerSecond() external view returns (uint256[] memory);

    function updateRewardRate(uint256 _newRate) external;
}

// Note that this pool has no minter key.
contract GenesisRewardsPool is IMultiRewardPool, ReentrancyGuard {
    using SafeMath for uint256;
    using SafeERC20 for IERC20;

    // governance
    address public operator;
    address public reserveFund;

    // Info of each user.
    struct UserInfo {
        uint256 amount; // How many LP tokens the user has provided.
        uint256 rewardDebt; // Reward debt. See explanation below.
        uint256 lastDepositTime;
    }

    // Info of each pool.
    struct PoolInfo {
        IERC20 token; // Address of LP token contract.
        uint256 allocPoint; // How many allocation points assigned to this pool. LIGHTs to distribute in the pool.
        uint256 lastRewardTime; // Last time that LIGHTs distribution occurred.
        uint256 _accRewardPerShare; // Accumulated LIGHTs per share, times 1e18. See below.
        bool isStarted; // if lastRewardTime has passed
        uint16 depositFeeBP; // Deposit fee in basis points
        uint256 lockedTime;
    }

    IERC20 public blue;
    IERC20 public green;

    // Info of each pool.
    PoolInfo[] public poolInfo;

    // Info of each user that stakes LP tokens.
    mapping(uint256 => mapping(address => UserInfo)) public userInfo;

    // Total allocation points. Must be the sum of all allocation points in all pools.
    uint256 private _totalAllocPoint;

    // The time when blue mining starts.
    uint256 public poolStartTime;

    uint256[] public epochTotalRewards = [100000 ether, 75000 ether, 50000 ether, 25000 ether];

    // Time when each epoch ends.
    uint256[4] public epochEndTimes;

    // Reward per second for each of 4 weeks (last item is equal to 0 - for sanity).
    uint256[5] public epochRewardPerSeconds;

    uint256 private constant REWARD_RATE_DENOMINATION = 100;
    uint256 public constant REWARD_RATE_LIGHT = 800;

    event Deposit(address indexed user, uint256 indexed pid, uint256 amount);
    event Withdraw(address indexed user, uint256 indexed pid, uint256 amount);
    event EmergencyWithdraw(
        address indexed user,
        uint256 indexed pid,
        uint256 amount
    );
    event RewardPaid(
        address indexed user,
        uint256 greenAmt,
        uint256 blueAmt
    );

    constructor(
        address _green,
        address _blue,
        uint256 _poolStartTime,
        address _reserveFund
    ) public {
        require(block.timestamp < _poolStartTime, "late");

        green = IERC20(_green);
        blue = IERC20(_blue);

        poolStartTime = _poolStartTime;
        reserveFund = _reserveFund;

        epochEndTimes[0] = poolStartTime + 7 days; // 1st week
        epochEndTimes[1] = epochEndTimes[0] + 7 days; // 2nd week
        epochEndTimes[2] = epochEndTimes[1] + 7 days; // 3rd week
        epochEndTimes[3] = epochEndTimes[2] + 7 days; // 4th week

        epochRewardPerSeconds[0] = epochTotalRewards[0].div(7 days);
        epochRewardPerSeconds[1] = epochTotalRewards[1].div(7 days);
        epochRewardPerSeconds[2] = epochTotalRewards[2].div(7 days);
        epochRewardPerSeconds[3] = epochTotalRewards[3].div(7 days);

        epochRewardPerSeconds[4] = 0;
        operator = msg.sender;
    }

    modifier onlyOperator() {
        require(
            operator == msg.sender,
            "GenesisRewardPool: caller is not the operator"
        );
        _;
    }

    function reward() external view override returns (address) {
        return address(green);
    }

    function multiRewardLength() external view override returns (uint256) {
        return 2;
    }

    function multiRewards()
    external
    view
    override
    returns (address[] memory _rewards)
    {
        _rewards = new address[](2);
        _rewards[0] = address(green);
        _rewards[1] = address(blue);
    }

    function totalAllocPoint() external view override returns (uint256) {
        return _totalAllocPoint;
    }

    function poolLength() external view override returns (uint256) {
        return poolInfo.length;
    }

    function getPoolInfo(uint256 _pid)
    external
    view
    override
    returns (address _lp, uint256 _allocPoint)
    {
        PoolInfo memory pool = poolInfo[_pid];
        _lp = address(pool.token);
        _allocPoint = pool.allocPoint;
    }

    function getRewardPerSecond() external view override returns (uint256) {
        for (uint8 epochId = 0; epochId <= 3; ++epochId) {
            if (block.timestamp <= epochEndTimes[epochId])
                return epochRewardPerSeconds[epochId];
        }
        return 0;
    }

    function getMultiRewardPerSecond()
    external
    view
    override
    returns (uint256[] memory _rewardPerSecondArr)
    {
        _rewardPerSecondArr = new uint256[](2);
        for (uint8 epochId = 0; epochId <= 3; ++epochId) {
            if (block.timestamp <= epochEndTimes[epochId]) {
                _rewardPerSecondArr[0] = epochRewardPerSeconds[epochId];
                _rewardPerSecondArr[1] = _rewardPerSecondArr[0]
                .mul(REWARD_RATE_LIGHT)
                .div(REWARD_RATE_DENOMINATION);
                return _rewardPerSecondArr;
            }
        }
    }

    function checkPoolDuplicate(IERC20 _token) internal view {
        uint256 length = poolInfo.length;
        for (uint256 pid = 0; pid < length; ++pid) {
            require(
                poolInfo[pid].token != _token,
                "rewardPool: existing pool?"
            );
        }
    }

    function setReserveFund(address _reserveFund) external onlyOperator {
        reserveFund = _reserveFund;
    }

    // Add a new token to the pool. Can only be called by the owner.
    function add(
        uint256 _allocPoint,
        IERC20 _token,
        uint16 _depositFeeBP,
        uint256 _lastRewardTime,
        uint256 _lockedTime
    ) public onlyOperator {
        require(_depositFeeBP <= 1000, "too high fee"); // <= 10%
        checkPoolDuplicate(_token);
        massUpdatePools();
        if (block.timestamp < poolStartTime) {
            // chef is sleeping
            if (_lastRewardTime == 0) {
                _lastRewardTime = poolStartTime;
            } else {
                if (_lastRewardTime < poolStartTime) {
                    _lastRewardTime = poolStartTime;
                }
            }
        } else {
            // chef is cooking
            if (_lastRewardTime == 0 || _lastRewardTime < block.timestamp) {
                _lastRewardTime = block.timestamp;
            }
        }
        bool _isStarted = (_lastRewardTime <= poolStartTime) ||
        (_lastRewardTime <= block.timestamp);
        poolInfo.push(
            PoolInfo({
                token: _token,
                allocPoint: _allocPoint,
                lastRewardTime: _lastRewardTime,
                _accRewardPerShare: 0,
                lockedTime: _lockedTime,
                depositFeeBP : _depositFeeBP,
                isStarted: _isStarted
            })
        );
        if (_isStarted) {
            _totalAllocPoint = _totalAllocPoint.add(_allocPoint);
        }
    }

    // Update the given pool's blue allocation point. Can only be called by the owner.
    function setPoolAllocation(uint256 _pid, uint256 _allocPoint, uint16 _depositFeeBP)
    public
    onlyOperator
    {
        require(_depositFeeBP <= 1000, "too high fee"); // <= 10%
        massUpdatePools();
        PoolInfo storage pool = poolInfo[_pid];
        if (pool.isStarted) {
            _totalAllocPoint = _totalAllocPoint.sub(pool.allocPoint).add(
                _allocPoint
            );
        }
        pool.allocPoint = _allocPoint;
        pool.depositFeeBP = _depositFeeBP;
    }

    // Update the given pool's blue locked time. Can only be called by the owner.
    function setPoolLockedTime(uint256 _pid, uint256 _lockedTime)
    public
    onlyOperator
    {
        massUpdatePools();
        PoolInfo storage pool = poolInfo[_pid];
        pool.lockedTime = _lockedTime;
    }

    // Return accumulate rewards over the given _fromTime to _toTime.
    function getGeneratedReward(uint256 _fromTime, uint256 _toTime)
    public
    view
    returns (uint256)
    {
        for (uint8 epochId = 4; epochId >= 1; --epochId) {
            if (_toTime >= epochEndTimes[epochId - 1]) {
                if (_fromTime >= epochEndTimes[epochId - 1]) {
                    return
                    _toTime.sub(_fromTime).mul(
                        epochRewardPerSeconds[epochId]
                    );
                }
                uint256 _generatedReward = _toTime
                .sub(epochEndTimes[epochId - 1])
                .mul(epochRewardPerSeconds[epochId]);
                if (epochId == 1) {
                    return
                    _generatedReward.add(
                        epochEndTimes[0].sub(_fromTime).mul(
                            epochRewardPerSeconds[0]
                        )
                    );
                }
                for (epochId = epochId - 1; epochId >= 1; --epochId) {
                    if (_fromTime >= epochEndTimes[epochId - 1]) {
                        return
                        _generatedReward.add(
                            epochEndTimes[epochId].sub(_fromTime).mul(
                                epochRewardPerSeconds[epochId]
                            )
                        );
                    }
                    _generatedReward = _generatedReward.add(
                        epochEndTimes[epochId]
                        .sub(epochEndTimes[epochId - 1])
                        .mul(epochRewardPerSeconds[epochId])
                    );
                }
                return
                _generatedReward.add(
                    epochEndTimes[0].sub(_fromTime).mul(
                        epochRewardPerSeconds[0]
                    )
                );
            }
        }
        return _toTime.sub(_fromTime).mul(epochRewardPerSeconds[0]);
    }

    // View function to see pending LIGHTs on frontend.
    function pendingReward(uint256 _pid, address _user)
    public
    view
    override
    returns (uint256)
    {
        PoolInfo storage pool = poolInfo[_pid];
        UserInfo storage user = userInfo[_pid][_user];
        uint256 _accRewardPerShare = pool._accRewardPerShare;
        uint256 tokenSupply = pool.token.balanceOf(address(this));
        if (block.timestamp > pool.lastRewardTime && tokenSupply != 0) {
            uint256 _generatedReward = getGeneratedReward(
                pool.lastRewardTime,
                block.timestamp
            );
            uint256 _greenReward = _generatedReward.mul(pool.allocPoint).div(
                _totalAllocPoint
            );
            _accRewardPerShare = _accRewardPerShare.add(
                _greenReward.mul(1e18).div(tokenSupply)
            );
        }
        return user.amount.mul(_accRewardPerShare).div(1e18).sub(user.rewardDebt);
    }

    function pendingMultiRewards(uint256 _pid, address _user)
    public
    view
    override
    returns (uint256[] memory _pendingMultiRewardArr)
    {
        uint256 _greenReward = pendingReward(_pid, _user);
        _pendingMultiRewardArr = new uint256[](2);
        _pendingMultiRewardArr[0] = _greenReward;
        _pendingMultiRewardArr[1] = _greenReward.mul(REWARD_RATE_LIGHT).div(
            REWARD_RATE_DENOMINATION
        );
    }

    function pendingAllRewards(address _user)
    public
    view
    override
    returns (uint256 _total)
    {
        uint256 length = poolInfo.length;
        for (uint256 pid = 0; pid < length; ++pid) {
            _total = _total.add(pendingReward(pid, _user));
        }
    }

    function pendingAllMultiRewards(address _user)
    external
    view
    override
    returns (uint256[] memory _totalMultiRewardArr)
    {
        uint256 _greenTotalReward = pendingAllRewards(_user);
        _totalMultiRewardArr = new uint256[](2);
        _totalMultiRewardArr[0] = _greenTotalReward;
        _totalMultiRewardArr[1] = _greenTotalReward.mul(REWARD_RATE_LIGHT).div(
            REWARD_RATE_DENOMINATION
        );
    }

    // Update reward variables for all pools. Be careful of gas spending!
    function massUpdatePools() public {
        uint256 length = poolInfo.length;
        for (uint256 pid = 0; pid < length; ++pid) {
            updatePool(pid);
        }
    }

    // Update reward variables of the given pool to be up-to-date.
    function updatePool(uint256 _pid) public {
        PoolInfo storage pool = poolInfo[_pid];
        if (block.timestamp <= pool.lastRewardTime) {
            return;
        }
        uint256 tokenSupply = pool.token.balanceOf(address(this));
        if (tokenSupply == 0) {
            pool.lastRewardTime = block.timestamp;
            return;
        }
        if (!pool.isStarted) {
            pool.isStarted = true;
            _totalAllocPoint = _totalAllocPoint.add(pool.allocPoint);
        }
        if (_totalAllocPoint > 0) {
            uint256 _generatedReward = getGeneratedReward(
                pool.lastRewardTime,
                block.timestamp
            );
            uint256 _greenReward = _generatedReward.mul(pool.allocPoint).div(
                _totalAllocPoint
            );
            pool._accRewardPerShare = pool._accRewardPerShare.add(
                _greenReward.mul(1e18).div(tokenSupply)
            );
        }
        pool.lastRewardTime = block.timestamp;
    }

    function unfrozenStakeTime(uint256 _pid, address _account)
    public
    view
    returns (uint256)
    {
        return
        Math.min(
            userInfo[_pid][_account].lastDepositTime +
            poolInfo[_pid].lockedTime,
            epochEndTimes[3]
        );
    }

    // Deposit LP tokens.
    function deposit(uint256 _pid, uint256 _amount)
    external
    override
    nonReentrant
    {
        PoolInfo storage pool = poolInfo[_pid];
        UserInfo storage user = userInfo[_pid][msg.sender];
        updatePool(_pid);
        if (user.amount > 0) {
            uint256 _pending = user
            .amount
            .mul(pool._accRewardPerShare)
            .div(1e18)
            .sub(user.rewardDebt);
            if (_pending > 0) {
                _claimReward(msg.sender, _pending);
            }
        }
        if (_amount > 0) {
            pool.token.safeTransferFrom(msg.sender, address(this), _amount);
            if (pool.depositFeeBP > 0) {
                uint256 _depositFee = _amount.mul(pool.depositFeeBP).div(10000);
                pool.token.safeTransfer(reserveFund, _depositFee);
                user.amount = user.amount.add(_amount).sub(_depositFee);
            } else {
                user.amount = user.amount.add(_amount);
            }
        }
        user.rewardDebt = user.amount.mul(pool._accRewardPerShare).div(1e18);
        user.lastDepositTime = block.timestamp;
        emit Deposit(msg.sender, _pid, _amount);
    }

    function withdraw(uint256 _pid, uint256 _amount)
    external
    override
    nonReentrant
    {
        _withdraw(msg.sender, _pid, _amount);
    }

    // Withdraw LP tokens.
    function _withdraw(
        address _account,
        uint256 _pid,
        uint256 _amount
    ) internal {
        PoolInfo storage pool = poolInfo[_pid];
        UserInfo storage user = userInfo[_pid][_account];
        if (_amount > 0) {
            require(user.amount >= _amount, "withdraw: not good");
            require(
                block.timestamp >= unfrozenStakeTime(_pid, msg.sender),
                "GenesisRewardPool: locked"
            );
        }
        updatePool(_pid);
        uint256 _pending = user.amount.mul(pool._accRewardPerShare).div(1e18).sub(
            user.rewardDebt
        );
        if (_pending > 0) {
            _claimReward(_account, _pending);
        }
        if (_amount > 0) {
            user.amount = user.amount.sub(_amount);
            pool.token.safeTransfer(_account, _amount);
        }
        user.rewardDebt = user.amount.mul(pool._accRewardPerShare).div(1e18);
        emit Withdraw(_account, _pid, _amount);
    }

    function withdrawAll(uint256 _pid) external override nonReentrant {
        _withdraw(msg.sender, _pid, userInfo[_pid][msg.sender].amount);
    }

    function harvestAllRewards() external override nonReentrant {
        uint256 length = poolInfo.length;
        for (uint256 pid = 0; pid < length; ++pid) {
            if (userInfo[pid][msg.sender].amount > 0) {
                _withdraw(msg.sender, pid, 0);
            }
        }
    }

    // Withdraw without caring about rewards. EMERGENCY ONLY.
    function emergencyWithdraw(uint256 _pid) external {
        require(
            block.timestamp >= unfrozenStakeTime(_pid, msg.sender),
            "GenesisRewardPool: locked"
        );
        PoolInfo storage pool = poolInfo[_pid];
        UserInfo storage user = userInfo[_pid][msg.sender];
        uint256 _amount = user.amount;
        user.amount = 0;
        user.rewardDebt = 0;
        pool.token.safeTransfer(msg.sender, _amount);
        emit EmergencyWithdraw(msg.sender, _pid, _amount);
    }

    function _claimReward(address _account, uint256 _greenAmt) internal {
        uint256 _blueAmt = _greenAmt.mul(REWARD_RATE_LIGHT).div(
            REWARD_RATE_DENOMINATION
        );
        _safeTokenTransfer(green, _account, _greenAmt);
        _safeTokenTransfer(blue, _account, _blueAmt);
        emit RewardPaid(_account, _greenAmt, _blueAmt);
    }

    // Safe blue transfer function, just in case if rounding error causes pool to not have enough LIGHTs.
    function _safeTokenTransfer(
        IERC20 _token,
        address _to,
        uint256 _amount
    ) internal {
        uint256 _tokenBal = _token.balanceOf(address(this));
        if (_tokenBal > 0) {
            if (_amount > _tokenBal) {
                _token.safeTransfer(_to, _tokenBal);
            } else {
                _token.safeTransfer(_to, _amount);
            }
        }
    }

    function updateRewardRate(uint256) external override {
        revert("Not support");
    }

    function setOperator(address _operator) external onlyOperator {
        operator = _operator;
    }

    function governanceRecoverUnsupported(
        IERC20 _token,
        uint256 amount,
        address to
    ) external onlyOperator {
        if (block.timestamp < epochEndTimes[3] + 90 days) {
            // do not allow to drain token if less than 90 days after farming
            require(
                _token != green && _token != blue,
                "reward"
            );
            uint256 length = poolInfo.length;
            for (uint256 pid = 0; pid < length; ++pid) {
                PoolInfo storage pool = poolInfo[pid];
                require(_token != pool.token, "!pool.token");
            }
        }
        _token.safeTransfer(to, amount);
    }
}

{
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 17
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

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