// 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
pragma solidity ^0.8.26;

import "lib/openzeppelin-contracts/contracts/access/Ownable.sol";

contract GdnRegistry is Ownable {
    struct Label {
        address owner;
        uint256 expiry;
    }

    mapping(string => Label) private labels;
    address public registrar;

    uint256 public totalLabels;

    event LabelRegistered(
        string indexed label,
        address indexed owner,
        uint256 expiry
    );
    event LabelRenewed(string indexed label, uint256 newExpiry);

    constructor(address ownerAddress) Ownable(ownerAddress) {}

    modifier onlyRegistrar() {
        require(msg.sender == registrar, "Only registrar can call this");
        _;
    }

    function setRegistrar(address registrarAddress) external onlyOwner {
        registrar = registrarAddress;
    }

    function setLabel(
        string memory label,
        address labelOwner,
        uint256 expiry
    ) external onlyRegistrar {
        Label memory currentLabel = labels[label];
        bool isNewLabel = currentLabel.owner == address(0);
        bool isExpiredLabel = !isNewLabel &&
            currentLabel.expiry < block.timestamp;

        if (isNewLabel) {
            totalLabels++;
            emit LabelRegistered(label, labelOwner, expiry);
        } else if (isExpiredLabel) {
            if (currentLabel.owner == labelOwner) {
                emit LabelRenewed(label, expiry);
            } else {
                emit LabelRegistered(label, labelOwner, expiry);
            }
        } else {
            emit LabelRenewed(label, expiry);
        }

        labels[label] = Label({owner: labelOwner, expiry: expiry});
    }

    function getLabelInfo(
        string memory label
    ) external view returns (address, uint256) {
        Label memory labelInfo = labels[label];
        return (labelInfo.owner, labelInfo.expiry);
    }

    function isLabelAvailable(string memory label) public view returns (bool) {
        Label memory labelInfo = labels[label];
        if (labelInfo.owner == address(0)) {
            return true; // Label is available if it has no owner
        }
        if (labelInfo.expiry < block.timestamp) {
            return true; // Label is available if it has expired
        }
        return false; // Label is not available
    }
}

// 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);
    }
}

{
  "compilationTarget": {
    "src/GdnRegistry.sol": "GdnRegistry"
  },
  "evmVersion": "paris",
  "libraries": {
    "src/TokenIdCodec.sol:TokenIdCodec": "0x6cda10441e223f7133c852b0ad35aeff3091513b"
  },
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": [
    ":@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    ":ds-test/=lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/src/",
    ":erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    ":forge-std/=lib/forge-std/src/",
    ":openzeppelin-contracts/=lib/openzeppelin-contracts/"
  ]
}