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/**
 * Copyright 2023 Circle Internet Group, Inc. All rights reserved.
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

pragma solidity 0.6.12;

import { MintController } from "./MintController.sol";

/**
 * @title MasterMinter
 * @notice MasterMinter uses multiple controllers to manage minters for a
 * contract that implements the MinterManagerInterface.
 * @dev MasterMinter inherits all its functionality from MintController.
 */
contract MasterMinter is MintController {
    constructor(address _minterManager) public MintController(_minterManager) {}
}

/**
 * Copyright 2023 Circle Internet Group, Inc. All rights reserved.
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

pragma solidity 0.6.12;

import { Controller } from "./Controller.sol";
import { MinterManagementInterface } from "./MinterManagementInterface.sol";
import { SafeMath } from "@openzeppelin/contracts/math/SafeMath.sol";

// solhint-disable func-name-mixedcase

/**
 * @title MintController
 * @dev The MintController contract manages minters for a contract that
 * implements the MinterManagerInterface. It lets the owner designate certain
 * addresses as controllers, and these controllers then manage the
 * minters by adding and removing minters, as well as modifying their minting
 * allowance. A controller may manage exactly one minter, but the same minter
 * address may be managed by multiple controllers.
 * MintController inherits from the Controller contract. It treats the
 * Controller workers as minters.
 */
contract MintController is Controller {
    using SafeMath for uint256;

    /**
     * @dev MintController calls the minterManager to execute/record minter
     * management tasks, as well as to query the status of a minter address.
     */
    MinterManagementInterface internal minterManager;

    event MinterManagerSet(
        address indexed _oldMinterManager,
        address indexed _newMinterManager
    );
    event MinterConfigured(
        address indexed _msgSender,
        address indexed _minter,
        uint256 _allowance
    );
    event MinterRemoved(address indexed _msgSender, address indexed _minter);
    event MinterAllowanceIncremented(
        address indexed _msgSender,
        address indexed _minter,
        uint256 _increment,
        uint256 _newAllowance
    );

    event MinterAllowanceDecremented(
        address indexed msgSender,
        address indexed minter,
        uint256 decrement,
        uint256 newAllowance
    );

    /**
     * @notice Initializes the minterManager.
     * @param _minterManager The address of the minterManager contract.
     */
    constructor(address _minterManager) public {
        minterManager = MinterManagementInterface(_minterManager);
    }

    /**
     * @notice gets the minterManager
     */
    function getMinterManager()
        external
        view
        returns (MinterManagementInterface)
    {
        return minterManager;
    }

    // onlyOwner functions

    /**
     * @notice Sets the minterManager.
     * @param _newMinterManager The address of the new minterManager contract.
     */
    function setMinterManager(address _newMinterManager) public onlyOwner {
        emit MinterManagerSet(address(minterManager), _newMinterManager);
        minterManager = MinterManagementInterface(_newMinterManager);
    }

    // onlyController functions

    /**
     * @notice Removes the controller's own minter.
     */
    function removeMinter() public onlyController returns (bool) {
        address minter = controllers[msg.sender];
        emit MinterRemoved(msg.sender, minter);
        return minterManager.removeMinter(minter);
    }

    /**
     * @notice Enables the minter and sets its allowance.
     * @param _newAllowance New allowance to be set for minter.
     */
    function configureMinter(uint256 _newAllowance)
        public
        onlyController
        returns (bool)
    {
        address minter = controllers[msg.sender];
        emit MinterConfigured(msg.sender, minter, _newAllowance);
        return internal_setMinterAllowance(minter, _newAllowance);
    }

    /**
     * @notice Increases the minter's allowance if and only if the minter is an
     * active minter.
     * @dev An minter is considered active if minterManager.isMinter(minter)
     * returns true.
     */
    function incrementMinterAllowance(uint256 _allowanceIncrement)
        public
        onlyController
        returns (bool)
    {
        require(
            _allowanceIncrement > 0,
            "Allowance increment must be greater than 0"
        );
        address minter = controllers[msg.sender];
        require(
            minterManager.isMinter(minter),
            "Can only increment allowance for minters in minterManager"
        );

        uint256 currentAllowance = minterManager.minterAllowance(minter);
        uint256 newAllowance = currentAllowance.add(_allowanceIncrement);

        emit MinterAllowanceIncremented(
            msg.sender,
            minter,
            _allowanceIncrement,
            newAllowance
        );

        return internal_setMinterAllowance(minter, newAllowance);
    }

    /**
     * @notice decreases the minter allowance if and only if the minter is
     * currently active. The controller can safely send a signed
     * decrementMinterAllowance() transaction to a minter and not worry
     * about it being used to undo a removeMinter() transaction.
     */
    function decrementMinterAllowance(uint256 _allowanceDecrement)
        public
        onlyController
        returns (bool)
    {
        require(
            _allowanceDecrement > 0,
            "Allowance decrement must be greater than 0"
        );
        address minter = controllers[msg.sender];
        require(
            minterManager.isMinter(minter),
            "Can only decrement allowance for minters in minterManager"
        );

        uint256 currentAllowance = minterManager.minterAllowance(minter);
        uint256 actualAllowanceDecrement = (
            currentAllowance > _allowanceDecrement
                ? _allowanceDecrement
                : currentAllowance
        );
        uint256 newAllowance = currentAllowance.sub(actualAllowanceDecrement);

        emit MinterAllowanceDecremented(
            msg.sender,
            minter,
            actualAllowanceDecrement,
            newAllowance
        );

        return internal_setMinterAllowance(minter, newAllowance);
    }

    // Internal functions

    /**
     * @notice Uses the MinterManagementInterface to enable the minter and
     * set its allowance.
     * @param _minter Minter to set new allowance of.
     * @param _newAllowance New allowance to be set for minter.
     */
    function internal_setMinterAllowance(address _minter, uint256 _newAllowance)
        internal
        returns (bool)
    {
        return minterManager.configureMinter(_minter, _newAllowance);
    }
}

/**
 * Copyright 2023 Circle Internet Group, Inc. All rights reserved.
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

pragma solidity 0.6.12;

import { Ownable } from "../v1/Ownable.sol";

/**
 * @title Controller
 * @notice Generic implementation of the owner-controller-worker model.
 * One owner manages many controllers. Each controller manages one worker.
 * Workers may be reused across different controllers.
 */
contract Controller is Ownable {
    /**
     * @dev A controller manages a single worker address.
     * controllers[controller] = worker
     */
    mapping(address => address) internal controllers;

    event ControllerConfigured(
        address indexed _controller,
        address indexed _worker
    );
    event ControllerRemoved(address indexed _controller);

    /**
     * @notice Ensures that caller is the controller of a non-zero worker
     * address.
     */
    modifier onlyController() {
        require(
            controllers[msg.sender] != address(0),
            "The value of controllers[msg.sender] must be non-zero"
        );
        _;
    }

    /**
     * @notice Gets the worker at address _controller.
     */
    function getWorker(address _controller) external view returns (address) {
        return controllers[_controller];
    }

    // onlyOwner functions

    /**
     * @notice Configure a controller with the given worker.
     * @param _controller The controller to be configured with a worker.
     * @param _worker The worker to be set for the newly configured controller.
     * _worker must not be a non-zero address. To disable a worker,
     * use removeController instead.
     */
    function configureController(address _controller, address _worker)
        public
        onlyOwner
    {
        require(
            _controller != address(0),
            "Controller must be a non-zero address"
        );
        require(_worker != address(0), "Worker must be a non-zero address");
        controllers[_controller] = _worker;
        emit ControllerConfigured(_controller, _worker);
    }

    /**
     * @notice disables a controller by setting its worker to address(0).
     * @param _controller The controller to disable.
     */
    function removeController(address _controller) public onlyOwner {
        require(
            _controller != address(0),
            "Controller must be a non-zero address"
        );
        require(
            controllers[_controller] != address(0),
            "Worker must be a non-zero address"
        );
        controllers[_controller] = address(0);
        emit ControllerRemoved(_controller);
    }
}

/**
 * Copyright 2023 Circle Internet Group, Inc. All rights reserved.
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

pragma solidity 0.6.12;

/**
 * @dev A contract that implements the MinterManagementInterface has external
 * functions for adding and removing minters and modifying their allowances.
 * An example is the FiatTokenV1 contract.
 */
interface MinterManagementInterface {
    function isMinter(address _account) external view returns (bool);

    function minterAllowance(address _minter) external view returns (uint256);

    function configureMinter(address _minter, uint256 _minterAllowedAmount)
        external
        returns (bool);

    function removeMinter(address _minter) external returns (bool);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @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, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, 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 (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @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) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @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) {
        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, reverting 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) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting 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) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * 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);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * 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);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * 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;
    }
}

/**
 * SPDX-License-Identifier: MIT
 *
 * Copyright (c) 2018 zOS Global Limited.
 * Copyright (c) 2018-2020 CENTRE SECZ
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

pragma solidity 0.6.12;

/**
 * @notice The Ownable contract has an owner address, and provides basic
 * authorization control functions
 * @dev Forked from https://github.com/OpenZeppelin/openzeppelin-labs/blob/3887ab77b8adafba4a26ace002f3a684c1a3388b/upgradeability_ownership/contracts/ownership/Ownable.sol
 * Modifications:
 * 1. Consolidate OwnableStorage into this contract (7/13/18)
 * 2. Reformat, conform to Solidity 0.6 syntax, and add error messages (5/13/20)
 * 3. Make public functions external (5/27/20)
 */
contract Ownable {
    // Owner of the contract
    address private _owner;

    /**
     * @dev Event to show ownership has been transferred
     * @param previousOwner representing the address of the previous owner
     * @param newOwner representing the address of the new owner
     */
    event OwnershipTransferred(address previousOwner, address newOwner);

    /**
     * @dev The constructor sets the original owner of the contract to the sender account.
     */
    constructor() public {
        setOwner(msg.sender);
    }

    /**
     * @dev Tells the address of the owner
     * @return the address of the owner
     */
    function owner() external view returns (address) {
        return _owner;
    }

    /**
     * @dev Sets a new owner address
     */
    function setOwner(address newOwner) internal {
        _owner = newOwner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(msg.sender == _owner, "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Allows the current owner to transfer control of the contract to a newOwner.
     * @param newOwner The address to transfer ownership to.
     */
    function transferOwnership(address newOwner) external onlyOwner {
        require(
            newOwner != address(0),
            "Ownable: new owner is the zero address"
        );
        emit OwnershipTransferred(_owner, newOwner);
        setOwner(newOwner);
    }
}

{
  "remappings": [
    "forge-std/=lib/forge-std/src/",
    "@openzeppelin/=node_modules/@openzeppelin/",
    "@ensdomains/=node_modules/@ensdomains/",
    "@solidity-parser/=node_modules/prettier-plugin-solidity/node_modules/@solidity-parser/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "eth-gas-reporter/=node_modules/eth-gas-reporter/",
    "hardhat/=node_modules/hardhat/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 10000000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "istanbul"
}

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000000000000000000000000b86cfb07e4cd95de740aa22edd12d5a637cc6520

-----Decoded View---------------
Arg [0] : _minterManager (address): 0xB86Cfb07E4cD95dE740aa22EdD12D5a637cC6520

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000b86cfb07e4cd95de740aa22edd12d5a637cc6520