{
    "Function": "notifyRewardAmount",
    "File": "contracts/contracts/Gauge.sol",
    "Parent Contracts": [],
    "High-Level Calls": [
        "IBribe",
        "IERC20"
    ],
    "Internal Calls": [
        "_writeRewardPerTokenCheckpoint",
        "_safeTransferFrom",
        "_safeTransferFrom",
        "require(bool,string)",
        "require(bool)",
        "require(bool,string)",
        "lock",
        "require(bool)",
        "_updateRewardPerToken",
        "require(bool)",
        "_claimFees",
        "require(bool)"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function notifyRewardAmount(address token, uint amount) external lock {\n        require(token != stake);\n        require(amount > 0);\n        if (!isReward[token]) {\n            require(rewards.length < MAX_REWARD_TOKENS, \"too many rewards tokens\");\n        }\n        // rewards accrue only during the bribe period\n        uint bribeStart = block.timestamp - (block.timestamp % (7 days)) + BRIBE_LAG;\n        uint adjustedTstamp = block.timestamp < bribeStart ? bribeStart : bribeStart + 7 days;\n        if (rewardRate[token] == 0) _writeRewardPerTokenCheckpoint(token, 0, adjustedTstamp);\n        (rewardPerTokenStored[token], lastUpdateTime[token]) = _updateRewardPerToken(token);\n        _claimFees();\n\n        if (block.timestamp >= periodFinish[token]) {\n            _safeTransferFrom(token, msg.sender, address(this), amount);\n            rewardRate[token] = amount / DURATION;\n        } else {\n            uint _remaining = periodFinish[token] - block.timestamp;\n            uint _left = _remaining * rewardRate[token];\n            require(amount > _left);\n            _safeTransferFrom(token, msg.sender, address(this), amount);\n            rewardRate[token] = (amount + _left) / DURATION;\n        }\n        require(rewardRate[token] > 0);\n        uint balance = IERC20(token).balanceOf(address(this));\n        require(rewardRate[token] <= balance / DURATION, \"Provided reward too high\");\n        periodFinish[token] = adjustedTstamp + DURATION;\n        if (!isReward[token]) {\n            isReward[token] = true;\n            rewards.push(token);\n            IBribe(bribe).addRewardToken(token);\n        }\n\n        emit NotifyReward(msg.sender, token, amount);\n    }"
}