{
    "Function": "slitherConstructorVariables",
    "File": "contracts/token/Rewards.sol",
    "Parent Contracts": [
        "contracts/vendor/LinkToken/token/ERC677Receiver.sol",
        "contracts/token/Rewards.sol",
        "node_modules/@openzeppelin/contracts/access/Ownable.sol",
        "node_modules/@openzeppelin/contracts/GSN/Context.sol",
        "contracts/token/Rewards.sol"
    ],
    "High-Level Calls": [],
    "Internal Calls": [],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "contract Rewards is LPTokenWrapper, IRewardDistributionRecipient, ERC677Receiver {\n    IERC20 public immutable rewardToken;\n    uint256 public immutable duration;\n\n    uint256 public periodFinish = 0;\n    uint256 public rewardRate = 0;\n    uint256 public lastUpdateTime;\n    uint256 public rewardPerTokenStored;\n    mapping(address => uint256) public userRewardPerTokenPaid;\n    mapping(address => uint256) public rewards;\n\n    event RewardAdded(uint256 reward);\n    event Staked(address indexed user, uint256 amount);\n    event Withdrawn(address indexed user, uint256 amount);\n    event RewardPaid(address indexed user, uint256 reward);\n\n    constructor(\n        address _rewardToken,\n        address _stakingToken,\n        uint256 _duration\n    )\n        public\n        LPTokenWrapper(_stakingToken)\n    {\n        rewardToken = IERC20(_rewardToken);\n        duration = _duration;\n    }\n\n    modifier updateReward(address account) {\n        rewardPerTokenStored = rewardPerToken();\n        lastUpdateTime = lastTimeRewardApplicable();\n        if (account != address(0)) {\n            rewards[account] = earned(account);\n            userRewardPerTokenPaid[account] = rewardPerTokenStored;\n        }\n        _;\n    }\n\n    function onTokenTransfer(address sender, uint256 amount, bytes memory)\n        public override updateReward(sender)\n    {\n        require(msg.sender == address(stakingToken), \"!stakingToken\");\n        super.stakeFor(sender, amount);\n        emit Staked(sender, amount);\n    }\n\n    function lastTimeRewardApplicable() public view returns (uint256) {\n        return Math.min(block.timestamp, periodFinish);\n    }\n\n    function rewardPerToken() public view returns (uint256) {\n        if (totalSupply() == 0) {\n            return rewardPerTokenStored;\n        }\n        return\n            rewardPerTokenStored.add(\n                lastTimeRewardApplicable()\n                    .sub(lastUpdateTime)\n                    .mul(rewardRate)\n                    .mul(1e18)\n                    .div(totalSupply())\n            );\n    }\n\n    function earned(address account) public view returns (uint256) {\n        return\n            balanceOf(account)\n                .mul(rewardPerToken().sub(userRewardPerTokenPaid[account]))\n                .div(1e18)\n                .add(rewards[account]);\n    }\n\n    // stake visibility is public as overriding LPTokenWrapper's stake() function\n    function stake(uint256 amount) public override updateReward(msg.sender) {\n        require(amount > 0, \"Cannot stake 0\");\n        super.stake(amount);\n        emit Staked(msg.sender, amount);\n    }\n\n    function withdraw(uint256 amount) public override updateReward(msg.sender) {\n        require(amount > 0, \"Cannot withdraw 0\");\n        super.withdraw(amount);\n        emit Withdrawn(msg.sender, amount);\n    }\n\n    function exit() external {\n        withdraw(balanceOf(msg.sender));\n        getReward();\n    }\n\n    function getReward() public updateReward(msg.sender) {\n        uint256 reward = earned(msg.sender);\n        if (reward > 0) {\n            rewards[msg.sender] = 0;\n            rewardToken.safeTransfer(msg.sender, reward);\n            emit RewardPaid(msg.sender, reward);\n        }\n    }\n\n    function notifyRewardAmount(uint256 reward)\n        external\n        override\n        onlyRewardDistribution\n        updateReward(address(0))\n    {\n        if (block.timestamp >= periodFinish) {\n            rewardRate = reward.div(duration);\n        } else {\n            uint256 remaining = periodFinish.sub(block.timestamp);\n            uint256 leftover = remaining.mul(rewardRate);\n            rewardRate = reward.add(leftover).div(duration);\n        }\n        lastUpdateTime = block.timestamp;\n        periodFinish = block.timestamp.add(duration);\n        emit RewardAdded(reward);\n    }\n}"
}