{
    "Function": "createPledge",
    "File": "contracts/WardenPledge.sol",
    "Parent Contracts": [
        "contracts/oz/utils/ReentrancyGuard.sol",
        "contracts/oz/utils/Pausable.sol",
        "contracts/oz/utils/Ownable.sol",
        "contracts/oz/utils/Context.sol"
    ],
    "High-Level Calls": [
        "SafeERC20",
        "IVotingEscrow",
        "SafeERC20"
    ],
    "Internal Calls": [
        "revert DurationTooShort()",
        "revert NullEndTimestamp()",
        "revert RewardPerVoteTooLow()",
        "revert ZeroAddress()",
        "revert TargetVoteUnderMin()",
        "_getRoundedTimestamp",
        "pledgesIndex",
        "revert InvalidEndTimestamp()",
        "whenNotPaused",
        "revert IncorrectMaxTotalRewardAmount()",
        "revert IncorrectMaxFeeAmount()",
        "safe64",
        "nonReentrant",
        "revert TokenNotWhitelisted()"
    ],
    "Library Calls": [
        "safeTransferFrom",
        "safeTransferFrom"
    ],
    "Low-Level Calls": [],
    "Code": "function createPledge(\n        address receiver,\n        address rewardToken,\n        uint256 targetVotes,\n        uint256 rewardPerVote, // reward/veToken/second\n        uint256 endTimestamp,\n        uint256 maxTotalRewardAmount,\n        uint256 maxFeeAmount\n    ) external whenNotPaused nonReentrant returns(uint256){\n        address creator = msg.sender;\n\n        if(receiver == address(0) || rewardToken == address(0)) revert Errors.ZeroAddress();\n        if(targetVotes < minTargetVotes) revert Errors.TargetVoteUnderMin();\n        if(minAmountRewardToken[rewardToken] == 0) revert Errors.TokenNotWhitelisted();\n        if(rewardPerVote < minAmountRewardToken[rewardToken]) revert Errors.RewardPerVoteTooLow();\n\n        if(endTimestamp == 0) revert Errors.NullEndTimestamp();\n        if(endTimestamp != _getRoundedTimestamp(endTimestamp)) revert Errors.InvalidEndTimestamp();\n\n        CreatePledgeVars memory vars;\n        vars.duration = endTimestamp - block.timestamp;\n        if(vars.duration < minDelegationTime) revert Errors.DurationTooShort();\n\n        // Get the missing votes for the given receiver to reach the target votes\n        // We ignore any delegated boost here because they might expire during the Pledge duration\n        // (we can have a future version of this contract using adjusted_balance)\n        vars.votesDifference = targetVotes - votingEscrow.balanceOf(receiver);\n\n        vars.totalRewardAmount = (rewardPerVote * vars.votesDifference * vars.duration) / UNIT;\n        vars.feeAmount = (vars.totalRewardAmount * protocalFeeRatio) / MAX_PCT ;\n        if(vars.totalRewardAmount > maxTotalRewardAmount) revert Errors.IncorrectMaxTotalRewardAmount();\n        if(vars.feeAmount > maxFeeAmount) revert Errors.IncorrectMaxFeeAmount();\n\n        // Pull all the rewards in this contract\n        IERC20(rewardToken).safeTransferFrom(creator, address(this), vars.totalRewardAmount);\n        // And transfer the fees from the Pledge creator to the Chest contract\n        IERC20(rewardToken).safeTransferFrom(creator, chestAddress, vars.feeAmount);\n\n        vars.newPledgeID = pledgesIndex();\n\n        // Add the total reards as available for the Pledge & write Pledge parameters in storage\n        pledgeAvailableRewardAmounts[vars.newPledgeID] += vars.totalRewardAmount;\n\n        pledges.push(Pledge(\n            targetVotes,\n            vars.votesDifference,\n            rewardPerVote,\n            receiver,\n            rewardToken,\n            safe64(endTimestamp),\n            false\n        ));\n\n        pledgeOwner[vars.newPledgeID] = creator;\n        ownerPledges[creator].push(vars.newPledgeID);\n\n        emit NewPledge(creator, receiver, rewardToken, targetVotes, rewardPerVote, endTimestamp);\n\n        return vars.newPledgeID;\n    }"
}