// File: contracts/Interfaces/IDistro.sol



pragma solidity =0.8.6;

interface IDistro {
    /**
     * @dev Emitted when someone makes a claim of tokens
     */
    event Claim(address indexed grantee, uint256 amount);
    /**
     * @dev Emitted when the DISTRIBUTOR allocate an amount to a grantee
     */
    event Allocate(
        address indexed distributor,
        address indexed grantee,
        uint256 amount
    );
    /**
     * @dev Emitted when the DEFAULT_ADMIN assign an amount to a DISTRIBUTOR
     */
    event Assign(
        address indexed admin,
        address indexed distributor,
        uint256 amount
    );
    /**
     * @dev Emitted when someone change their reception address
     */
    event ChangeAddress(address indexed oldAddress, address indexed newAddress);

    /**
     * @dev Emitted when a new startTime is set
     */
    event StartTimeChanged(uint256 newStartTime, uint256 newCliffTime);

    /**
     * @dev Returns the total amount of tokens will be streamed
     */
    function totalTokens() external view returns (uint256);

    /**
     * Function that allows the DEFAULT_ADMIN_ROLE to assign set a new startTime if it hasn't started yet
     * @param newStartTime new startTime
     *
     * Emits a {StartTimeChanged} event.
     *
     */
    function setStartTime(uint256 newStartTime) external;

    /**
     * Function that allows the DEFAULT_ADMIN_ROLE to assign tokens to an address who later can distribute them.
     * @dev It is required that the DISTRIBUTOR_ROLE is already held by the address to which an amount will be assigned
     * @param distributor the address, generally a smart contract, that will determine who gets how many tokens
     * @param amount Total amount of tokens to assign to that address for distributing
     */
    function assign(address distributor, uint256 amount) external;

    /**
     * Function to claim tokens for a specific address. It uses the current timestamp
     */
    function claim() external;

    /**
     * Function that allows to the distributor address to allocate some amount of tokens to a specific recipient
     * @dev Needs to be initialized: Nobody has the DEFAULT_ADMIN_ROLE and all available tokens have been assigned
     * @param recipient of token allocation
     * @param amount allocated amount
     * @param claim whether claim after allocate
     */
    function allocate(
        address recipient,
        uint256 amount,
        bool claim
    ) external;

    /**
     * Function that allows to the distributor address to allocate some amounts of tokens to specific recipients
     * @dev Needs to be initialized: Nobody has the DEFAULT_ADMIN_ROLE and all available tokens have been assigned
     * @param recipients of token allocation
     * @param amounts allocated amount
     */
    function allocateMany(address[] memory recipients, uint256[] memory amounts)
        external;

    function sendGIVbacks(address[] memory recipients, uint256[] memory amounts)
        external;

    /**
     * Function that allows a recipient to change its address
     * @dev The change can only be made to an address that has not previously received an allocation &
     * the distributor cannot change its address
     */
    function changeAddress(address newAddress) external;

    /**
     * Function to get the current timestamp from the block
     */
    function getTimestamp() external view returns (uint256);

    /**
     * Function to get the total unlocked tokes at some moment
     */
    function globallyClaimableAt(uint256 timestamp)
        external
        view
        returns (uint256);

    /**
     * Function to get the unlocked tokes at some moment for a specific address
     */
    function claimableAt(address recipient, uint256 timestamp)
        external
        view
        returns (uint256);

    /**
     * Function to get the unlocked tokens for a specific address. It uses the current timestamp
     */
    function claimableNow(address recipient) external view returns (uint256);

    function cancelAllocation(address prevRecipient, address newRecipient)
        external;
}

// File: openzeppelin-contracts-upgradable-v4/proxy/utils/Initializable.sol



pragma solidity ^0.8.0;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        require(_initializing || !_initialized, "Initializable: contract is already initialized");

        bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }
}

// File: openzeppelin-contracts-upgradable-v4/utils/ContextUpgradeable.sol



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 ContextUpgradeable is Initializable {
    function __Context_init() internal initializer {
        __Context_init_unchained();
    }

    function __Context_init_unchained() internal initializer {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
    uint256[50] private __gap;
}

// File: openzeppelin-contracts-upgradable-v4/access/OwnableUpgradeable.sol



pragma solidity ^0.8.0;



/**
 * @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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal initializer {
        __Context_init_unchained();
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal initializer {
        _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);
    }
    uint256[49] private __gap;
}

// File: openzeppelin-contracts-v4/token/ERC20/IERC20.sol



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: contracts/Tokens/UniswapV3RewardToken.sol



pragma solidity 0.8.6;




contract UniswapV3RewardToken is IERC20, OwnableUpgradeable {
    uint256 public initialBalance;

    string public constant name = "Giveth Uniswap V3 Reward Token";
    string public constant symbol = "GUR";
    uint8 public constant decimals = 18;

    IDistro public tokenDistro;
    address public uniswapV3Staker;
    uint256 public override totalSupply;

    event RewardPaid(address indexed user, uint256 reward);

    function initialize(IDistro _tokenDistribution, address _uniswapV3Staker)
        public
        initializer
    {
        __Ownable_init();
        tokenDistro = _tokenDistribution;
        uniswapV3Staker = _uniswapV3Staker;
    }

    function balanceOf(address account) public view override returns (uint256) {
        if (account == uniswapV3Staker) return totalSupply;
        return 0;
    }

    function approve(address spender, uint256 value)
        external
        override
        returns (bool)
    {
        return true;
    }

    function transfer(address to, uint256 value)
        external
        override
        returns (bool)
    {
        require(
            msg.sender == uniswapV3Staker,
            "GivethUniswapV3Reward:transfer:ONLY_STAKER"
        );

        totalSupply = totalSupply - value;
        tokenDistro.allocate(to, value, true);

        emit RewardPaid(to, value);
        return true;
    }

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external override returns (bool) {
        require(
            from == owner(),
            "GivethUniswapV3Reward:transferFrom:ONLY_OWNER_CAN_ADD_INCENTIVES"
        );

        // Only uniswapV3Staker can do the transferFrom
        require(
            msg.sender == uniswapV3Staker,
            "GivethUniswapV3Reward:transferFrom:ONLY_STAKER"
        );

        // Only to uniswapV3Staker is allowed
        require(
            to == uniswapV3Staker,
            "GivethUniswapV3Reward:transferFrom:ONLY_TO_STAKER"
        );

        totalSupply = totalSupply + value;

        emit Transfer(address(0), to, value);
        return true;
    }

    function allowance(address owner, address spender)
        external
        view
        override
        returns (uint256)
    {
        if (spender == uniswapV3Staker) return type(uint256).max;
        return 0;
    }
}
{"success": true, "error": null, "results": {}}