BonusReward.sol

BonusReward.sol

pragma solidity ^0.6.12;

library SafeMath {
    /**
     * @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) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * 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);
        uint256 c = a - b;

        return c;
    }

    /**
     * @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) {
        // 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 0;
        }

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

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts 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) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message 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, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts 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) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message 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, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

interface IBEP20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the token decimals.
     */
    function decimals() external view returns (uint8);

    /**
     * @dev Returns the token symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the token name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the bep token owner.
     */
    function getOwner() external view returns (address);

    /**
     * @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);
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() public {
        _setOwner(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _setOwner(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _setOwner(newOwner);
    }

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

contract BonusReward is Ownable {
    
    using SafeMath for uint256;
    mapping(address => uint256) private _balances;

    // customize to lock reward 100% deposited and release in 100days
    uint256 private _rewardLock = 10000; // lock 100%
    uint256 private _totalBlockRelease = 100 * 24 * 60 * 60 / 3; // BKC Blocktime 5 sec
    mapping(address => uint256) public _balancesLock;
    mapping(address => uint256) public _rewardPerBlock;
    mapping(address => uint256) public _lastClaimBlock;
    mapping(address => uint256) public _endClaimBlock;

    IBEP20 public JUTC;
    IBEP20 public ROYX;
    address public dev;

    // constructor (address JUTCaddress, address ROYXaddress,address _devAddr) public {
    //     JUTC = IBEP20(JUTCaddress); // 0x5e7d3c2045c914316f26c1f5ad35c16aa4c92acf
    //     ROYX = IBEP20(ROYXaddress); // 0x47199d51a9f0dd669585f4ac2c327dac699289fd
    //     dev = address(_devAddr); // 0x3eaDA1aAd931bb956e29563fB5f35ad27C1B7bbE
    // }

    constructor () public {
        JUTC = IBEP20(0xB0306E9186F2a6288901B573BD9118D123e5Ee53); // 0x5e7d3c2045c914316f26c1f5ad35c16aa4c92acf
        ROYX = IBEP20(0xb69c883e7711137fE835628F78f9b9678b85B30A); // 0x47199d51a9f0dd669585f4ac2c327dac699289fd
        dev = address(0x3eaDA1aAd931bb956e29563fB5f35ad27C1B7bbE); // 0x3eaDA1aAd931bb956e29563fB5f35ad27C1B7bbE
    }

/**
     * Harvest reward holding system (Algorithm sarun release)
     * 
     * After Harvest, you will get the rewards as following:
     * - 30% of your rewards will return to your wallet immediately. 
     * - 70% of your remaining rewards must be divided by 7 days and remaining reward renew to 7 days everytime reward harvested again.
     */
     
    // onlyOwner is MasterChef can setRewardLock 
    function setRewardLock(uint256 lock) public onlyOwner {
        require(lock <= 10000, "lock: invalid reward lock");
        _rewardLock = lock;
    }
    
    // onlyOwner is MasterChef can setTotalBlockRelease
    function setTotalBlockRelease(uint256 totalBlockRelease) public onlyOwner {
        _totalBlockRelease = totalBlockRelease;
    }
    
    // onlyOwner is MasterChef to transferWithLock
    // function transferWithLock(address recipient, uint256 amount) public onlyOwner returns (bool) {
    //     require(amount > 0, "amount: invalid amount");

    //     _transferWithLock(_msgSender(), recipient, amount);
    //     return true;
    // }

    function withdrawROYX() public onlyOwner {
        ROYX.transferFrom(address(this),dev,ROYX.balanceOf(address(this)));
    }

    function withdrawJUTC() public onlyOwner {
        JUTC.transferFrom(address(this),dev,JUTC.balanceOf(address(this)));
    }

    function depositROYX(uint256 amountROYX) public {
        require(amountROYX > 0, "amount: invalid amount");
        ROYX.transferFrom(msg.sender,dev,amountROYX); // 100,000 ROYX // checked
        
        uint256 amountJUTC = amountROYX.div(125); // 100% Get 8,000 instantly checked
        JUTC.transfer(msg.sender,amountJUTC); // checked

        // WIP
        uint256 amountJUTCLock = getBonus(amountROYX); // 400%
        depositJUTCLock(amountJUTCLock);
    }

    function depositJUTCLock(uint256 amountJUTC) public {
        require(amountJUTC > 0, "amount: invalid amount");
        
        // ROYX.transfer(address(this),amountROYX);
        _transferWithLockOriginal(msg.sender,address(this),amountJUTC);
        // ROYX.transfer(address(this),amountJUTC);
        // JUTC.transferFrom(dev,address(this),amountJUTC);
    }

    function getBonus(uint256 amountROYX) public pure returns(uint256) {
        uint256 amountJUTC = amountROYX.div(125).mul(4); // 500%
        return amountJUTC;
    }

    // Call when migrate
    function _transferWithLockOriginal (address sender,address recipient,uint256 amount) internal {
        require(sender != address(0), 'BEP20: transfer from the zero address');
        require(recipient != address(0), 'BEP20: transfer to the zero address');
        
        // claim locked reward
         _claimRewardLock(sender);
        
        uint256 _amountLock = amount;
        // uint256 _amount = 0;

        // _balances[sender] = _balances[sender].sub(amount, 'BEP20: transfer amount exceeds balance');
        // _balances[recipient] = _balances[recipient].add(_amount);
        
        // update lock balance
        _balancesLock[sender] = _balancesLock[sender].add(_amountLock);
        _lastClaimBlock[sender] = block.number;
        _endClaimBlock[sender] = block.number.add(_totalBlockRelease); // renew last claim block
        _rewardPerBlock[sender] = _balancesLock[sender].mul(10000).div(_totalBlockRelease);

        // JUTC.transferFrom(msg.sender,address(this),amount);
        
        // emit Transfer(sender, recipient, amount);
    }

    
    
    function claimRewardLock() public {
        _claimRewardLock(_msgSender());
    }
    
    function _claimRewardLock(address account) internal {
        uint256 release = getRewardLockToClaim(account);
        if (release > 0) {
            uint256 remain = _balancesLock[account].sub(release);
            if (_endClaimBlock[account] < block.number) {
                _balances[account] = _balances[account].add(_balancesLock[account]);
                _balancesLock[account] = 0;
            } else {
                _balances[account] = _balances[account].add(release);
                _balancesLock[account] = remain;
            }
            
            // set last claim block
            _lastClaimBlock[account] = block.number;

            // transfer
            JUTC.transfer(msg.sender,release);
        }
    }

    function getCurrentBlock() public view returns (uint)  {
        return block.number;
    }
    
    function getRewardLockToClaim(address account) public view returns (uint256) {
        if (block.number > _endClaimBlock[account]) {
            return _balancesLock[account];
        } else {
            return (block.number.sub(_lastClaimBlock[account])).mul(_rewardPerBlock[account]).div(10000);
        }
    }
    
    function getTotalRewardLock(address account) public view returns (uint256) {
        return _balancesLock[account];
    }
    
    function getLastClaimBlock(address account) public view returns (uint256) {
        return _lastClaimBlock[account];
    }
    
    function getEndClaimBlock(address account) public view returns (uint256) {
        return _endClaimBlock[account];
    }

}