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// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.10;

import "../openzeppelin/contracts/AccessControl.sol";

/// @title A simple on-chain price oracle mechanism
/// @author github.com/drbh
/// @notice Offchain clients can update the prices in this contract. The public can read prices
contract NFTFloorOracle is AccessControl {
    bytes32 public constant UPDATER_ROLE = keccak256("UPDATER_ROLE");

	struct OracleConfig {
		uint128 twapPeriod;
	}

	struct PriceInformation {
		/// @dev last reported floor price
		uint128 twap;
		uint64 lastUpdateTime;
	}

	/// @dev address of the NFT contract -> price information
	mapping (address => PriceInformation) priceMap;

	/// @dev storage for oracle configurations
	OracleConfig config;

	/// @notice Allow contract creator to set admin and first updater
	/// @param admin The admin who can change roles
	/// @param updaters The inital updaters
	constructor(address admin, address[] memory updaters) {
        _setupRole(DEFAULT_ADMIN_ROLE, admin);

		for (uint i=0; i < updaters.length; i++) {
			_setupRole(UPDATER_ROLE, updaters[i]);
		}
	}

	/// @notice Allows owner to set new price on PriceInformation and updates the
	/// internal TWAP cumulativePrice.
	/// @param token The nft contracts to set a floor price for
	/// @param twap The last floor twap
	function setPrice(address token, uint128 twap) onlyRole(UPDATER_ROLE) public {
		/// @dev get storage ref for gas savings
		PriceInformation storage priceMapEntry = priceMap[token];

		/// @dev set values
		priceMapEntry.twap = twap;
		priceMapEntry.lastUpdateTime = uint64(block.timestamp);
	}

	/// @notice Allows owner to set new price on PriceInformation and updates the
	/// internal TWAP cumulativePrice.
	/// @param tokens The nft contract to set a floor price for
	function setMultiplePrices(address[] calldata tokens, uint128[] calldata twaps) onlyRole(UPDATER_ROLE) public {
		require(tokens.length == twaps.length, "Tokens and price length differ");
		for(uint i; i<tokens.length; i++) {
			setPrice(tokens[i], twaps[i]);
		}
	}

	/// @notice Allows owner to update oracle configs
	/// @param twapPeriod The period of the time weighted average price
	function setConfig(uint128 twapPeriod) onlyRole(UPDATER_ROLE) public {
		config.twapPeriod = twapPeriod;
	}

	/// @param token The nft contract
	/// @return twap The most recent twap on chain
	function getTwap(address token) view public returns(uint128 twap) {
		return priceMap[token].twap;
	}

	/// @param token The nft contract
	/// @return timestamp The timestamp of the last update for an asset
	function getLastUpdateTime(address token) view public returns(uint128 timestamp) {
		return priceMap[token].lastUpdateTime;
	}
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

import './IAccessControl.sol';
import './Context.sol';
import './Strings.sol';
import './ERC165.sol';

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
  struct RoleData {
    mapping(address => bool) members;
    bytes32 adminRole;
  }

  mapping(bytes32 => RoleData) private _roles;

  bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

  /**
   * @dev Modifier that checks that an account has a specific role. Reverts
   * with a standardized message including the required role.
   *
   * The format of the revert reason is given by the following regular expression:
   *
   *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
   *
   * _Available since v4.1._
   */
  modifier onlyRole(bytes32 role) {
    _checkRole(role, _msgSender());
    _;
  }

  /**
   * @dev See {IERC165-supportsInterface}.
   */
  function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
    return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
  }

  /**
   * @dev Returns `true` if `account` has been granted `role`.
   */
  function hasRole(bytes32 role, address account) public view override returns (bool) {
    return _roles[role].members[account];
  }

  /**
   * @dev Revert with a standard message if `account` is missing `role`.
   *
   * The format of the revert reason is given by the following regular expression:
   *
   *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
   */
  function _checkRole(bytes32 role, address account) internal view {
    if (!hasRole(role, account)) {
      revert(
        string(
          abi.encodePacked(
            'AccessControl: account ',
            Strings.toHexString(uint160(account), 20),
            ' is missing role ',
            Strings.toHexString(uint256(role), 32)
          )
        )
      );
    }
  }

  /**
   * @dev Returns the admin role that controls `role`. See {grantRole} and
   * {revokeRole}.
   *
   * To change a role's admin, use {_setRoleAdmin}.
   */
  function getRoleAdmin(bytes32 role) public view override returns (bytes32) {
    return _roles[role].adminRole;
  }

  /**
   * @dev Grants `role` to `account`.
   *
   * If `account` had not been already granted `role`, emits a {RoleGranted}
   * event.
   *
   * Requirements:
   *
   * - the caller must have ``role``'s admin role.
   */
  function grantRole(bytes32 role, address account)
    public
    virtual
    override
    onlyRole(getRoleAdmin(role))
  {
    _grantRole(role, account);
  }

  /**
   * @dev Revokes `role` from `account`.
   *
   * If `account` had been granted `role`, emits a {RoleRevoked} event.
   *
   * Requirements:
   *
   * - the caller must have ``role``'s admin role.
   */
  function revokeRole(bytes32 role, address account)
    public
    virtual
    override
    onlyRole(getRoleAdmin(role))
  {
    _revokeRole(role, account);
  }

  /**
   * @dev Revokes `role` from the calling account.
   *
   * Roles are often managed via {grantRole} and {revokeRole}: this function's
   * purpose is to provide a mechanism for accounts to lose their privileges
   * if they are compromised (such as when a trusted device is misplaced).
   *
   * If the calling account had been granted `role`, emits a {RoleRevoked}
   * event.
   *
   * Requirements:
   *
   * - the caller must be `account`.
   */
  function renounceRole(bytes32 role, address account) public virtual override {
    require(account == _msgSender(), 'AccessControl: can only renounce roles for self');

    _revokeRole(role, account);
  }

  /**
   * @dev Grants `role` to `account`.
   *
   * If `account` had not been already granted `role`, emits a {RoleGranted}
   * event. Note that unlike {grantRole}, this function doesn't perform any
   * checks on the calling account.
   *
   * [WARNING]
   * ====
   * This function should only be called from the constructor when setting
   * up the initial roles for the system.
   *
   * Using this function in any other way is effectively circumventing the admin
   * system imposed by {AccessControl}.
   * ====
   */
  function _setupRole(bytes32 role, address account) internal virtual {
    _grantRole(role, account);
  }

  /**
   * @dev Sets `adminRole` as ``role``'s admin role.
   *
   * Emits a {RoleAdminChanged} event.
   */
  function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
    bytes32 previousAdminRole = getRoleAdmin(role);
    _roles[role].adminRole = adminRole;
    emit RoleAdminChanged(role, previousAdminRole, adminRole);
  }

  function _grantRole(bytes32 role, address account) private {
    if (!hasRole(role, account)) {
      _roles[role].members[account] = true;
      emit RoleGranted(role, account, _msgSender());
    }
  }

  function _revokeRole(bytes32 role, address account) private {
    if (hasRole(role, account)) {
      _roles[role].members[account] = false;
      emit RoleRevoked(role, account, _msgSender());
    }
  }
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
  /**
   * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
   *
   * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
   * {RoleAdminChanged} not being emitted signaling this.
   *
   * _Available since v3.1._
   */
  event RoleAdminChanged(
    bytes32 indexed role,
    bytes32 indexed previousAdminRole,
    bytes32 indexed newAdminRole
  );

  /**
   * @dev Emitted when `account` is granted `role`.
   *
   * `sender` is the account that originated the contract call, an admin role
   * bearer except when using {AccessControl-_setupRole}.
   */
  event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

  /**
   * @dev Emitted when `account` is revoked `role`.
   *
   * `sender` is the account that originated the contract call:
   *   - if using `revokeRole`, it is the admin role bearer
   *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
   */
  event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

  /**
   * @dev Returns `true` if `account` has been granted `role`.
   */
  function hasRole(bytes32 role, address account) external view returns (bool);

  /**
   * @dev Returns the admin role that controls `role`. See {grantRole} and
   * {revokeRole}.
   *
   * To change a role's admin, use {AccessControl-_setRoleAdmin}.
   */
  function getRoleAdmin(bytes32 role) external view returns (bytes32);

  /**
   * @dev Grants `role` to `account`.
   *
   * If `account` had not been already granted `role`, emits a {RoleGranted}
   * event.
   *
   * Requirements:
   *
   * - the caller must have ``role``'s admin role.
   */
  function grantRole(bytes32 role, address account) external;

  /**
   * @dev Revokes `role` from `account`.
   *
   * If `account` had been granted `role`, emits a {RoleRevoked} event.
   *
   * Requirements:
   *
   * - the caller must have ``role``'s admin role.
   */
  function revokeRole(bytes32 role, address account) external;

  /**
   * @dev Revokes `role` from the calling account.
   *
   * Roles are often managed via {grantRole} and {revokeRole}: this function's
   * purpose is to provide a mechanism for accounts to lose their privileges
   * if they are compromised (such as when a trusted device is misplaced).
   *
   * If the calling account had been granted `role`, emits a {RoleRevoked}
   * event.
   *
   * Requirements:
   *
   * - the caller must be `account`.
   */
  function renounceRole(bytes32 role, address account) external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.10;

/*
 * @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 GSN 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 payable) {
    return payable(msg.sender);
  }

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

// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

/**
 * @dev String operations.
 */
library Strings {
  bytes16 private constant _HEX_SYMBOLS = '0123456789abcdef';

  /**
   * @dev Converts a `uint256` to its ASCII `string` decimal representation.
   */
  function toString(uint256 value) internal pure returns (string memory) {
    // Inspired by OraclizeAPI's implementation - MIT licence
    // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

    if (value == 0) {
      return '0';
    }
    uint256 temp = value;
    uint256 digits;
    while (temp != 0) {
      digits++;
      temp /= 10;
    }
    bytes memory buffer = new bytes(digits);
    while (value != 0) {
      digits -= 1;
      buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
      value /= 10;
    }
    return string(buffer);
  }

  /**
   * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
   */
  function toHexString(uint256 value) internal pure returns (string memory) {
    if (value == 0) {
      return '0x00';
    }
    uint256 temp = value;
    uint256 length = 0;
    while (temp != 0) {
      length++;
      temp >>= 8;
    }
    return toHexString(value, length);
  }

  /**
   * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
   */
  function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
    bytes memory buffer = new bytes(2 * length + 2);
    buffer[0] = '0';
    buffer[1] = 'x';
    for (uint256 i = 2 * length + 1; i > 1; --i) {
      buffer[i] = _HEX_SYMBOLS[value & 0xf];
      value >>= 4;
    }
    require(value == 0, 'Strings: hex length insufficient');
    return string(buffer);
  }
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

import './IERC165.sol';

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
  /**
   * @dev See {IERC165-supportsInterface}.
   */
  function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
    return interfaceId == type(IERC165).interfaceId;
  }
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
  /**
   * @dev Returns true if this contract implements the interface defined by
   * `interfaceId`. See the corresponding
   * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
   * to learn more about how these ids are created.
   *
   * This function call must use less than 30 000 gas.
   */
  function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 100000
  },
  "evmVersion": "london",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

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00000000000000000000000067a7e7576ea8e4d78cb402b219951375a0a2c14e000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000010000000000000000000000009abbd826e721f3a3379d9ecf4381869cc8262114

-----Decoded View---------------
Arg [0] : admin (address): 0x67a7E7576eA8e4d78CB402b219951375A0A2C14e
Arg [1] : updaters (address[]): 0x9abBD826e721F3A3379d9ECf4381869cc8262114

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 00000000000000000000000067a7e7576ea8e4d78cb402b219951375a0a2c14e
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000001
Arg [3] : 0000000000000000000000009abbd826e721f3a3379d9ecf4381869cc8262114