pragma solidity ^0.8.10;

// SPDX-License-Identifier: MIT

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
    
    function _msgValue() internal view virtual returns (uint256) {
        return msg.value;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

pragma solidity ^0.8.10;

// SPDX-License-Identifier: Apache-2.0

interface IRewardsToken {
    
    function balanceOf(address account) external view returns (uint256);

    function isExcludedFromRewards(address wallet) external view returns (bool);
    
    function getRewardsSupply() external view returns (uint256);
}

pragma solidity ^0.8.10;

// SPDX-License-Identifier: MIT

import "./Context.sol";

/**
 * @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.
 */
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() {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view 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() external virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = 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) external virtual onlyOwner {
        require(
            newOwner != address(0),
            "Ownable: new owner is the zero address"
        );
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

pragma solidity ^0.8.10;

// SPDX-License-Identifier: Apache-2.0

import "./Ownable.sol";
import "./IRewardsToken.sol";
import "./SafeMath.sol";

contract RewardsTracker is Ownable {
    using SafeMath for uint256;

    struct TrackingData {
        IRewardsToken rewardsToken;
        string trackerName;
        uint256 allocation;
        bool enabled;
    }
    
    mapping(uint256 => TrackingData) private trackerData;
    mapping(address => uint256) private walletNonce;
    bool public withdrawAllowed = true;
    uint256 public totalCollected = 0;
    uint256 public totalWithdrawn = 0;

    address public signer =
        address(0xF83Ba7773Acc6F87Ea53Ff8B6B9C6a979fef63AD);
    address payable private _devWalletAddress =
        payable(0x4cCCC4DDde1D32f728Dca729475A75FE23159E38);

    event TrackerAdded(uint trackerId);
    event TrackerRemoved(uint trackerId);
    event AllocationAdded(uint256 value);
    event DevWalletUpdated(address newDevWallet);
    event SignerUpdated(address signer);
    event WithdrawStatusChanged(bool allowed);
    event Withdrawn(address wallet, uint256 amount);

    function addTracker(uint identifier, address rewardsTokenAddress, string memory name) external onlyOwner {
        require (!trackerData[identifier].enabled, "Tracker already registered and enabled");
        TrackingData memory data;
        data.rewardsToken = IRewardsToken(rewardsTokenAddress);
        data.trackerName = name;
        data.enabled = true;

        trackerData[identifier] = data;
        emit TrackerAdded(identifier);
    }

    function removeTracker(uint identifier) external onlyOwner {
        require (trackerData[identifier].enabled, "Tracker not yet registered or already disabled");
        trackerData[identifier].enabled = false;
        
        if (trackerData[identifier].allocation > 0) {
            sendEthToWallet(_devWalletAddress, trackerData[identifier].allocation);
        }

        emit TrackerRemoved(identifier);
    }

    function getTracker(uint identifier) external view returns (TrackingData memory) {
        return trackerData[identifier];
    }

    function getWalletNonce(address wallet) external view returns (uint256) {
        return walletNonce[wallet];
    }

    function addAllocation(uint identifier) external payable {
        require(_msgValue() > 0, "Allocation can't be 0");
        
        TrackingData storage trackingData = trackerData[identifier];
        require(trackingData.enabled, "Tracker isn't enabled");

        totalCollected = totalCollected.add(_msgValue());
        trackingData.allocation = trackingData.allocation.add(_msgValue());

        emit AllocationAdded(_msgValue());
    }

    function withdraw(uint256 identifier, uint256 amount, uint256 nonce, bytes memory sig) external payable {
        require(withdrawAllowed, "withdraw is disabled");

        bytes32 message = keccak256(abi.encodePacked(identifier, amount, nonce, _msgSender()));
        bool signatureMatch = recoverSigner(message, sig) == signer;

        require(signatureMatch, "signature mismatch");

        require(address(this).balance >= amount, "contract balance is not enough for withdrawal");

        bool trackerHasBalance = trackerData[identifier].allocation >= amount;
        require(trackerHasBalance, "tracker balance is not enough for withdrawal");

        bool uniqueNonce = (nonce == walletNonce[_msgSender()] + 1);
        require(uniqueNonce, "Duplicate nonce");

        if (signatureMatch && trackerHasBalance && uniqueNonce) {
            walletNonce[_msgSender()] = walletNonce[_msgSender()] + 1;
            trackerData[identifier].allocation = trackerData[identifier].allocation.sub(amount);
            totalWithdrawn = totalWithdrawn.add(_msgValue());

            payable(_msgSender()).transfer(amount);

            emit Withdrawn(_msgSender(), amount);
        }
    }

    function setSigner(address newSigner) external onlyOwner {
        signer = newSigner;
        emit SignerUpdated(newSigner);
    }
    
    function setDevWallet(address payable newDevWallet) external onlyOwner {
        _devWalletAddress = newDevWallet;
        emit DevWalletUpdated(newDevWallet);
    }

    function setAllowWithdraw(bool allowed) external onlyOwner {
        withdrawAllowed = allowed;
        emit WithdrawStatusChanged(allowed);
    }

    function manualSend() external onlyOwner {
        uint256 contractEthBalance = address(this).balance;
        sendEthToWallet(_devWalletAddress, contractEthBalance);
    }

    function sendEthToWallet(address wallet, uint256 amount) private {
        require (amount > 0, "Withdraw must be > 0");
        require (address(this).balance >= amount, "Insufficient balance");

        payable(wallet).transfer(amount);
    }

    function recoverSigner(bytes32 message, bytes memory sig)
        internal
        pure
        returns (address)
    {
        uint8 v;
        bytes32 r;
        bytes32 s;
        (v, r, s) = splitSignature(sig);
        return ecrecover(message, v, r, s);
    }

    function splitSignature(bytes memory sig)
        internal
        pure
        returns (uint8, bytes32, bytes32)
    {
        require(sig.length == 65);
        bytes32 r;
        bytes32 s;
        uint8 v;
        assembly {
            // first 32 bytes, after the length prefix
            r := mload(add(sig, 32))
            // second 32 bytes
            s := mload(add(sig, 64))
            // final byte (first byte of the next 32 bytes)
            v := byte(0, mload(add(sig, 96)))
        }

        return (v, r, s);
   }
}

pragma solidity ^0.8.10;

// SPDX-License-Identifier: MIT

/**
 * @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, 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;
    }
}

{
  "compilationTarget": {
    "Rewards Tracker V2/RewardsTracker.sol": "RewardsTracker"
  },
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}