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// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.9;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";

contract DUELStakingV1 {
    struct Stake {
        uint256 amount;
        uint256 startTime;
        uint32 durationDays;
        bytes32 lastClaimedCheckpoint;
    }
    mapping(address => Stake[]) public walletStakes;
}

contract DUELStaking is Ownable {
    address public duelToken;
    DUELStakingV1 public stakesV1;
    mapping(address => bool) public v1transferred;

    struct Stake {
        uint256 amount;
        uint256 startTime;
        uint32 durationDays;
        bytes32 lastClaimedCheckpoint;
    }
    mapping(address => Stake[]) public walletStakes;

    address[] public allStakers;
    uint256 public allStakersLength;

    mapping(address => bytes32) public lastClaimedCheckpoint;
    bytes32 public currentCheckpoint;

    event Staked(address indexed wallet, uint256 amount, uint32 periodDays);
    event Unstaked(address indexed wallet, Stake stakeInfo);

    constructor(address _duelToken) Ownable(msg.sender) {
        duelToken = _duelToken;
    }

    function setDuelToken(address newContract) external onlyOwner {
        duelToken = newContract;
    }

    function setStakesV1(DUELStakingV1 newContract) external onlyOwner {
        stakesV1 = newContract;
    }

    function batchV1Transition(address[] memory wallets) external onlyOwner {
        for (uint16 i = 0; i < wallets.length; i++) {
            singleV1Transition(wallets[i]);
        }
    }

    function updateStakeCheckpoint(bytes32 newCheckpoint) external onlyOwner {
        currentCheckpoint = newCheckpoint;
    }

    function singleV1Transition(address wallet) public {
        require(
            wallet == _msgSender() ||
                _msgSender() == owner() ||
                _msgSender() == duelToken,
            "ACCESS_FORBIDDEN"
        );
        if (v1transferred[wallet]) {
            return;
        }

        for (uint8 j = 0; j < 255; j++) {
            try stakesV1.walletStakes(wallet, j) returns (
                uint256 amount,
                uint256 startTime,
                uint32 durationDays,
                bytes32 lastClaimed
            ) {
                if (amount == 0) continue;
                IERC20(duelToken).transferFrom(owner(), address(this), amount);
                Stake memory newStake = Stake(
                    amount,
                    startTime,
                    durationDays,
                    lastClaimed
                );
                walletStakes[wallet].push(newStake);
            } catch {
                break;
            }
        }
        allStakers.push(wallet);
        allStakersLength++;
        v1transferred[wallet] = true;
    }

    function stakeDUEL(uint256 amount, uint32 periodDays) external {
        if (!v1transferred[_msgSender()] && getStakesLength(_msgSender()) > 0) {
            singleV1Transition(_msgSender());
        }

        IERC20(duelToken).transferFrom(_msgSender(), address(this), amount);
        Stake memory newStake = Stake({
            amount: amount,
            startTime: block.timestamp,
            durationDays: periodDays,
            lastClaimedCheckpoint: ""
        });

        walletStakes[_msgSender()].push(newStake);
        allStakers.push(_msgSender());
        allStakersLength++;
        emit Staked(_msgSender(), amount, periodDays);
    }

    function stakeFor(
        address wallet,
        uint256 amount,
        uint32 periodDays
    ) public {
        require(
            _msgSender() == duelToken || _msgSender() == owner(),
            "ACCESS_FORBIDDEN"
        );
        if (!v1transferred[wallet] && getStakesLength(_msgSender()) > 0) {
            singleV1Transition(wallet);
        }

        IERC20(duelToken).transferFrom(owner(), address(this), amount);
        Stake memory newStake = Stake({
            amount: amount,
            startTime: block.timestamp,
            durationDays: periodDays,
            lastClaimedCheckpoint: ""
        });

        walletStakes[wallet].push(newStake);
        allStakers.push(wallet);
        allStakersLength++;
        emit Staked(wallet, amount, periodDays);
    }

    function updateStake(
        address wallet,
        uint256 index,
        uint256 _newAmount,
        uint256 _newStartTime,
        uint32 _newDurationDays,
        bytes32 _newLastClaimed
    ) external onlyOwner {
        Stake memory newStake = Stake(
            _newAmount,
            _newStartTime,
            _newDurationDays,
            _newLastClaimed
        );
        walletStakes[wallet][index] = newStake;
    }

    function getStakesLength(address wallet) public view returns (uint256) {
        uint256 total_length = walletStakes[wallet].length;

        if (!v1transferred[wallet] && stakesV1 != DUELStakingV1(address(0))) {
            for (uint8 j = 0; j < 255; j++) {
                try stakesV1.walletStakes(wallet, j) returns (
                    uint256 amount,
                    uint256,
                    uint32,
                    bytes32
                ) {
                    if (amount == 0) continue;
                    total_length++;
                } catch {
                    break;
                }
            }
        }

        return total_length;
    }

    function claimStake(
        uint16 index,
        uint256 amount,
        bytes32[] calldata merkleProof
    ) external {
        if (!v1transferred[_msgSender()] && getStakesLength(_msgSender()) > 0) {
            singleV1Transition(_msgSender());
        }

        Stake memory stakeInfo = walletStakes[_msgSender()][index];
        require(stakeInfo.amount > 0, "STAKE_INACTIVE");

        bytes32 leaf = keccak256(abi.encodePacked(msg.sender, amount));
        require(
            MerkleProof.verify(merkleProof, currentCheckpoint, leaf),
            "INCORRECT_PROOF"
        );
        require(
            lastClaimedCheckpoint[_msgSender()] != currentCheckpoint,
            "STAKE_CLAIMED"
        );

        lastClaimedCheckpoint[_msgSender()] = currentCheckpoint;
        IERC20(duelToken).transferFrom(owner(), _msgSender(), amount);
    }

    function getStake(
        address wallet,
        uint8 index
    ) external view returns (uint256, uint256, uint32, bytes32) {
        if (walletStakes[wallet].length > index) {
            Stake memory stakeInfo = walletStakes[_msgSender()][index];
            return (
                stakeInfo.amount,
                stakeInfo.startTime,
                stakeInfo.durationDays,
                stakeInfo.lastClaimedCheckpoint
            );
        }

        try stakesV1.walletStakes(wallet, index) returns (
            uint256 amount,
            uint256 startTime,
            uint32 durationDays,
            bytes32 lastClaimed
        ) {
            return (amount, startTime, durationDays, lastClaimed);
        } catch {
            return (0, 0, 0, "");
        }
    }

    function unstake(uint16 index) external {
        if (!v1transferred[_msgSender()] && getStakesLength(_msgSender()) > 0) {
            singleV1Transition(_msgSender());
        }

        Stake memory stakeInfo = walletStakes[_msgSender()][index];
        require(stakeInfo.amount > 0, "STAKE_INACTIVE");

        require(
            block.timestamp >= stakeInfo.startTime + stakeInfo.durationDays,
            "STAKE_LOCKED"
        );

        delete walletStakes[_msgSender()][index];
        IERC20(duelToken).transfer(_msgSender(), stakeInfo.amount);
        emit Unstaked(_msgSender(), stakeInfo);
    }

    function withdrawDUEL(uint256 amount) external onlyOwner {
        if (amount == 0) {
            amount = IERC20(duelToken).balanceOf(address(this));
        }
        IERC20(duelToken).transfer(_msgSender(), amount);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/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.
 *
 * The initial owner is set to the address provided by the deployer. 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;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

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

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);

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

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.20;

/**
 * @dev These functions deal with verification of Merkle Tree proofs.
 *
 * The tree and the proofs can be generated using our
 * https://github.com/OpenZeppelin/merkle-tree[JavaScript library].
 * You will find a quickstart guide in the readme.
 *
 * WARNING: You should avoid using leaf values that are 64 bytes long prior to
 * hashing, or use a hash function other than keccak256 for hashing leaves.
 * This is because the concatenation of a sorted pair of internal nodes in
 * the Merkle tree could be reinterpreted as a leaf value.
 * OpenZeppelin's JavaScript library generates Merkle trees that are safe
 * against this attack out of the box.
 */
library MerkleProof {
    /**
     *@dev The multiproof provided is not valid.
     */
    error MerkleProofInvalidMultiproof();

    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Calldata version of {verify}
     */
    function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        return processProofCalldata(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Calldata version of {processProof}
     */
    function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a Merkle tree defined by
     * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
     *
     * CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
     */
    function multiProofVerify(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProof(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Calldata version of {multiProofVerify}
     *
     * CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
     */
    function multiProofVerifyCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProofCalldata(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
     * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
     * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
     * respectively.
     *
     * CAUTION: Not all Merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
     * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
     * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
     */
    function processMultiProof(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the Merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 proofLen = proof.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        if (leavesLen + proofLen != totalHashes + 1) {
            revert MerkleProofInvalidMultiproof();
        }

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i]
                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
                : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            if (proofPos != proofLen) {
                revert MerkleProofInvalidMultiproof();
            }
            unchecked {
                return hashes[totalHashes - 1];
            }
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Calldata version of {processMultiProof}.
     *
     * CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
     */
    function processMultiProofCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the Merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 proofLen = proof.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        if (leavesLen + proofLen != totalHashes + 1) {
            revert MerkleProofInvalidMultiproof();
        }

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i]
                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
                : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            if (proofPos != proofLen) {
                revert MerkleProofInvalidMultiproof();
            }
            unchecked {
                return hashes[totalHashes - 1];
            }
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Sorts the pair (a, b) and hashes the result.
     */
    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
        return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
    }

    /**
     * @dev Implementation of keccak256(abi.encode(a, b)) that doesn't allocate or expand memory.
     */
    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200,
    "details": {
      "yul": false
    }
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"_duelToken","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"wallet","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint32","name":"periodDays","type":"uint32"}],"name":"Staked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"wallet","type":"address"},{"components":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"startTime","type":"uint256"},{"internalType":"uint32","name":"durationDays","type":"uint32"},{"internalType":"bytes32","name":"lastClaimedCheckpoint","type":"bytes32"}],"indexed":false,"internalType":"struct DUELStaking.Stake","name":"stakeInfo","type":"tuple"}],"name":"Unstaked","type":"event"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"allStakers","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"allStakersLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"wallets","type":"address[]"}],"name":"batchV1Transition","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"index","type":"uint16"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes32[]","name":"merkleProof","type":"bytes32[]"}],"name":"claimStake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"currentCheckpoint","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"duelToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"wallet","type":"address"},{"internalType":"uint8","name":"index","type":"uint8"}],"name":"getStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint32","name":"","type":"uint32"},{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"wallet","type":"address"}],"name":"getStakesLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"lastClaimedCheckpoint","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newContract","type":"address"}],"name":"setDuelToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract DUELStakingV1","name":"newContract","type":"address"}],"name":"setStakesV1","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"wallet","type":"address"}],"name":"singleV1Transition","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint32","name":"periodDays","type":"uint32"}],"name":"stakeDUEL","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"wallet","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint32","name":"periodDays","type":"uint32"}],"name":"stakeFor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stakesV1","outputs":[{"internalType":"contract DUELStakingV1","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"index","type":"uint16"}],"name":"unstake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"wallet","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"},{"internalType":"uint256","name":"_newAmount","type":"uint256"},{"internalType":"uint256","name":"_newStartTime","type":"uint256"},{"internalType":"uint32","name":"_newDurationDays","type":"uint32"},{"internalType":"bytes32","name":"_newLastClaimed","type":"bytes32"}],"name":"updateStake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"newCheckpoint","type":"bytes32"}],"name":"updateStakeCheckpoint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"v1transferred","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"walletStakes","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"startTime","type":"uint256"},{"internalType":"uint32","name":"durationDays","type":"uint32"},{"internalType":"bytes32","name":"lastClaimedCheckpoint","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawDUEL","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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000000000000000000000000943af2ece93118b973c95c2f698ee9d15002e604

-----Decoded View---------------
Arg [0] : _duelToken (address): 0x943Af2ece93118B973c95c2F698EE9D15002e604

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000943af2ece93118b973c95c2f698ee9d15002e604