// File: @openzeppelin/contracts/access/Ownable.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../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.
 *
 * 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.
 */
abstract 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() {
        _setOwner(_msgSender());
    }

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

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

    /**
     * @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);
}

// File: @openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// File: @openzeppelin/contracts/utils/Address.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: @openzeppelin/contracts/utils/Context.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @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;
    }
}

// File: contracts/errors/Token.sol



// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

/**
 * @title TokenErrors
 * @author Non-Fungible Technologies, Inc.
 *
 * This file contains all custom errors for the token and distribution contracts.
 * All errors are prefixed by  "AT_" for ArcadeToken. Errors located in one place
 * to make it possible to holistically look at all the failure cases.
 */

/**
 * @notice Error thrown when token has already been sent to a specific party.
 */
error AT_AlreadySent();

/**
 * @notice Thrown when a proposed start time for minting is in the past.
 *
 * @param proposedStartTime       The proposed start time for minting.
 * @param currentTime             The current blocks timestamp.
 */
error AT_InvalidMintStart(uint256 proposedStartTime, uint256 currentTime);

/**
 * @notice Thrown when mint function is called prior to the mint start time.
 *
 * @param mintingAllowedAfter     The time when the next mint is allowed.
 * @param currentTime             The current blocks timestamp.
 */
error AT_MintingNotStarted(uint256 mintingAllowedAfter, uint256 currentTime);

/**
 * @notice Thrown when a non-minter address calls setMinter function.
 *
 * @param minter                  The tokens current minter address.
 */
error AT_MinterNotCaller(address minter);

/**
 * @notice Thrown when a zero amount of token is passed to the mint function.
 */
error AT_ZeroMintAmount();

/**
 * @notice Thrown when amount to mint exceeds to annual maximum of 2% the total supply.
 *
 * @param totalSupply             The current total supply of tokens.
 * @param mintCapAmount           The maximum number of tokens that can be minted.
 * @param amount                  The amount of tokens to mint.
 */
error AT_MintingCapExceeded(uint256 totalSupply, uint256 mintCapAmount, uint256 amount);

/**
 * @notice Zero address passed in where not allowed.
 *
 * @param addressType                The name of the parameter for which a zero
 *                                   address was provided.
 */
error AT_ZeroAddress(string addressType);

/**
 * @notice Thrown when the distributor contract already has a token set in state.
 */
error AT_TokenAlreadySet();

// File: contracts/interfaces/IArcadeToken.sol



// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IArcadeToken is IERC20 {
    function setMinter(address _newMinter) external;

    function mint(address _to, uint256 _amount) external;
}

// File: contracts/token/ArcadeTokenDistributor.sol



// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

import "../interfaces/IArcadeToken.sol";

import { AT_AlreadySent, AT_ZeroAddress, AT_TokenAlreadySet } from "../errors/Token.sol";

/**
 * @title Arcade Token Distributor
 * @author Non-Fungible Technologies, Inc.
 *
 * A contract that is responsible for distributing Arcade Tokens (ARCD). Each recipient address
 * is provided at the time of the distribution function call. Once each distribution function has
 * been called, the corresponding flag is set to true and the function cannot be called again. Once
 * all of the flags are set to true, the Arcade Token Distributor contract is no longer needed
 * and should not hold any tokens.
 */
contract ArcadeTokenDistributor is Ownable {
    using SafeERC20 for IArcadeToken;

    // ============================================= STATE =============================================

    /// @notice The Arcade Token contract to be used in token distribution.
    IArcadeToken public arcadeToken;

    /// @notice 25.499484% of initial distribution is for the governance treasury
    uint256 public constant governanceTreasuryAmount = 25_499_484 ether;
    /// @notice A flag to indicate if the governance treasury has already been transferred to
    bool public governanceTreasurySent;

    /// @notice 10% of initial distribution is for the foundation treasury
    uint256 public constant foundationTreasuryAmount = 10_000_000 ether;
    /// @notice A flag to indicate if the foundation treasury has already been transferred to
    bool public foundationTreasurySent;

    /// @notice 1.081284% of initial distribution is for the token development partner
    uint256 public constant devPartnerAmount = 1_081_284 ether;
    /// @notice A flag to indicate if the token development partner has already been transferred to.
    bool public devPartnerSent;

    /// @notice 9% of initial distribution is for the community rewards pool
    uint256 public constant communityRewardsAmount = 9_000_000 ether;
    /// @notice A flag to indicate if the community rewards pool has already been transferred to
    bool public communityRewardsSent;

    /// @notice 6% of initial distribution is for the community airdrop contract
    uint256 public constant communityAirdropAmount = 6_000_000 ether;
    /// @notice A flag to indicate if the community airdrop contract has already been transferred to
    bool public communityAirdropSent;

    /// @notice 15.54647% of initial distribution is for the Arcade team vesting
    uint256 public constant vestingTeamAmount = 15_546_470 ether;
    /// @notice A flag to indicate if the Arcade team vesting have already been transferred to
    bool public vestingTeamSent;

    /// @notice 33.872762% of initial distribution is for Arcade's launch partner vesting
    uint256 public constant vestingPartnerAmount = 32_872_762 ether;
    /// @notice A flag to indicate if Arcade's launch partner vesting has already been transferred to
    bool public vestingPartnerSent;

    // ============================================ EVENTS ==============================================

    /// @notice Emitted when Arcade Tokens are distributed to any recipient address
    event Distribute(address token, address recipient, uint256 amount);

    // ======================================== DISTRIBUTION OPS ========================================

    /**
     * @notice Transfers a predetermined amount of Arcade Tokens to the governance treasury.
     *
     * @param _governanceTreasury                The address of the Arcade governance treasury.
     */
    function toGovernanceTreasury(address _governanceTreasury) external onlyOwner whenTokenSet {
        if (governanceTreasurySent) revert AT_AlreadySent();
        if (_governanceTreasury == address(0)) revert AT_ZeroAddress("govTreasury");

        governanceTreasurySent = true;

        arcadeToken.safeTransfer(_governanceTreasury, governanceTreasuryAmount);

        emit Distribute(address(arcadeToken), _governanceTreasury, governanceTreasuryAmount);
    }

    /**
     * @notice Transfers a predetermined amount of Arcade Tokens to the foundation treasury.
     *
     * @param _foundationTreasury      The address of the foundation treasury.
     */
    function toFoundationTreasury(address _foundationTreasury) external onlyOwner whenTokenSet {
        if (foundationTreasurySent) revert AT_AlreadySent();
        if (_foundationTreasury == address(0)) revert AT_ZeroAddress("foundationTreasury");

        foundationTreasurySent = true;

        arcadeToken.safeTransfer(_foundationTreasury, foundationTreasuryAmount);

        emit Distribute(address(arcadeToken), _foundationTreasury, foundationTreasuryAmount);
    }

    /**
     * @notice Transfers a predetermined amount of Arcade Tokens to token's development partner.
     *
     * @param _devPartner              The address of the token's development partner.
     */
    function toDevPartner(address _devPartner) external onlyOwner whenTokenSet {
        if (devPartnerSent) revert AT_AlreadySent();
        if (_devPartner == address(0)) revert AT_ZeroAddress("devPartner");

        devPartnerSent = true;

        arcadeToken.safeTransfer(_devPartner, devPartnerAmount);

        emit Distribute(address(arcadeToken), _devPartner, devPartnerAmount);
    }

    /**
     * @notice Transfers a predetermined amount of Arcade Tokens to the community rewards pool.
     *
     * @param _communityRewards        The address of the community rewards pool.
     */
    function toCommunityRewards(address _communityRewards) external onlyOwner whenTokenSet {
        if (communityRewardsSent) revert AT_AlreadySent();
        if (_communityRewards == address(0)) revert AT_ZeroAddress("communityRewards");

        communityRewardsSent = true;

        arcadeToken.safeTransfer(_communityRewards, communityRewardsAmount);

        emit Distribute(address(arcadeToken), _communityRewards, communityRewardsAmount);
    }

    /**
     * @notice Transfers a predetermined amount of Arcade Tokens to the community airdrop contract.
     *
     * @param _communityAirdrop        The address of the community airdrop contract.
     */
    function toCommunityAirdrop(address _communityAirdrop) external onlyOwner whenTokenSet {
        if (communityAirdropSent) revert AT_AlreadySent();
        if (_communityAirdrop == address(0)) revert AT_ZeroAddress("communityAirdrop");

        communityAirdropSent = true;

        arcadeToken.safeTransfer(_communityAirdrop, communityAirdropAmount);

        emit Distribute(address(arcadeToken), _communityAirdrop, communityAirdropAmount);
    }

    /**
     * @notice Transfers a predetermined amount of Arcade Tokens to a recipient address
     *         which is responsible for distributing Arcade Tokens to the Arcade team.
     *
     * @param _vestingTeam             Address responsible for distributing vesting rewards.
     */
    function toTeamVesting(address _vestingTeam) external onlyOwner whenTokenSet {
        if (vestingTeamSent) revert AT_AlreadySent();
        if (_vestingTeam == address(0)) revert AT_ZeroAddress("vestingTeam");

        vestingTeamSent = true;

        arcadeToken.safeTransfer(_vestingTeam, vestingTeamAmount);

        emit Distribute(address(arcadeToken), _vestingTeam, vestingTeamAmount);
    }

    /**
     * @notice Transfers a predetermined amount of Arcade Tokens to a recipient address
     *         which is responsible for distributing Arcade Tokens to our Launch Partners.
     *
     * @param _vestingPartner          Address responsible for distributing vesting rewards.
     */
    function toPartnerVesting(address _vestingPartner) external onlyOwner whenTokenSet {
        if (vestingPartnerSent) revert AT_AlreadySent();
        if (_vestingPartner == address(0)) revert AT_ZeroAddress("vestingPartner");

        vestingPartnerSent = true;

        arcadeToken.safeTransfer(_vestingPartner, vestingPartnerAmount);

        emit Distribute(address(arcadeToken), _vestingPartner, vestingPartnerAmount);
    }

    // ============================================ ADMIN OPS ===========================================

    /**
     * @notice Sets the Arcade Token contract address, to be used in token distribution. The token
     *         contract address can only be set once.
     *
     * @param _arcadeToken             The Arcade Token contract.
     */
    function setToken(IArcadeToken _arcadeToken) external onlyOwner {
        if (address(_arcadeToken) == address(0)) revert AT_ZeroAddress("arcadeToken");
        if (address(arcadeToken) != address(0)) revert AT_TokenAlreadySet();

        arcadeToken = _arcadeToken;
    }

    // ============================================ HELPERS ============================================

    /** @notice Check to ensure that the Arcade Token contract address has been set
     *          before calling a withdraw function.
     */
    modifier whenTokenSet() {
        if (address(arcadeToken) == address(0)) revert AT_ZeroAddress("arcadeToken");
        _;
    }
}