// File: contracts/WRLD_Name_Service_Registrar.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import "./IWNS_Passes.sol";
import "./IWRLD_Name_Service_Registry.sol";
import "./StringUtils.sol";

contract WRLD_Name_Service_Registrar is Ownable, ReentrancyGuard {
  using StringUtils for *;

  /**
   * @dev @iamarkdev was here
   * */

  IERC20 immutable wrld;
  IWNS_Passes immutable whitelist;
  IWRLD_Name_Service_Registry immutable registry;

  uint256 private constant YEAR_SECONDS = 31536000;
  uint256 private constant PREREGISTRATION_PASS_TYPE_ID = 2;

  bool public registrationEnabled = false;

  uint256[5] public annualWrldPrices = [ 1e70, 1e70, 20000 ether, 2000 ether, 500 ether ]; // $WRLD, 1 char to 5 chars

  address private approvedWithdrawer;

  constructor(address _registry, address _wrld, address _whitelist) {
    registry = IWRLD_Name_Service_Registry(_registry);
    wrld = IERC20(_wrld);
    whitelist = IWNS_Passes(_whitelist);
  }

  /****************
   * Registration *
   ****************/

  function registerWithPass(string[] calldata _names) external nonReentrant {
    bool senderIsOwner = msg.sender == owner();

    if (!senderIsOwner) {
      whitelist.burnTypeForOwnerAddress(PREREGISTRATION_PASS_TYPE_ID, _names.length, msg.sender);
    }

    uint16[] memory registrationYears = new uint16[](_names.length);

    for (uint256 i = 0; i < _names.length; i++) {
      registrationYears[i] = 1;

      if (!senderIsOwner) {
        require(getRegistrationPrice(_names[i]) < 1000000 ether, "Name not available for sale");
      }
    }

    _register(_names, registrationYears, true);
  }

  function register(string[] calldata _names, uint16[] calldata _registrationYears) external nonReentrant {
    require(registrationEnabled, "Registration is not enabled.");

    _register(_names, _registrationYears, false);
  }

  function _register(string[] calldata _names, uint16[] memory _registrationYears, bool _free) private {
    require(_names.length == _registrationYears.length, "Arg size mismatched");

    uint256 sumPrice = 0;

    for (uint256 i = 0; i < _names.length; i++) {
      sumPrice += _registrationYears[i] * getRegistrationPrice(_names[i]);
    }

    registry.register(msg.sender, _names, _registrationYears);

    if (!_free) {
      wrld.transferFrom(msg.sender, address(this), sumPrice);
    }
  }

  function getRegistrationPrice(string calldata _name) public view returns (uint price) {
    uint len = _name.strlen();
    if (len > 0 && len <= 5) {
      price = annualWrldPrices[len-1];
    } else if (len > 5) {
      price = annualWrldPrices[4];
    } else {
      revert("Invalid name");
    }
  }

  /*************
   * Extension *
   *************/

  function extendRegistration(string[] calldata _names, uint16[] calldata _additionalYears) external nonReentrant {
    require(_names.length == _additionalYears.length, "Arg size mismatched");

    uint256 sumPrice = 0;

    for (uint256 i = 0; i < _names.length; i++) {
      sumPrice += _additionalYears[i] * getRegistrationPrice(_names[i]);
    }

    registry.extendRegistration(_names, _additionalYears);

    wrld.transferFrom(msg.sender, address(this), sumPrice);
  }

  /*********
   * Owner *
   *********/

  function setAnnualWrldPrices(uint256[] memory _annualWrldPrices) external onlyOwner {
    annualWrldPrices[0] = _annualWrldPrices[0];
    annualWrldPrices[1] = _annualWrldPrices[1];
    annualWrldPrices[2] = _annualWrldPrices[2];
    annualWrldPrices[3] = _annualWrldPrices[3];
    annualWrldPrices[4] = _annualWrldPrices[4];
  }

  function setApprovedWithdrawer(address _approvedWithdrawer) external onlyOwner {
    approvedWithdrawer = _approvedWithdrawer;
  }

  function enableRegistration() external onlyOwner {
    registrationEnabled = true;
  }

  /**************
   * Withdrawal *
   **************/

  function withdrawWrld(address toAddress) external {
    require(msg.sender == owner() || msg.sender == approvedWithdrawer, "Not approved to withdraw");

    wrld.transfer(toAddress, wrld.balanceOf(address(this)));
  }
}

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

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() {
        _transferOwnership(_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 {
        _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 {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _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);
    }
}

// File: @openzeppelin/contracts/security/ReentrancyGuard.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);

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

// File: contracts/IWNS_Passes.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.2;

import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";

interface IWNS_Passes is IERC1155 {
  function burnTypeBulk(uint256 _typeId, address[] calldata owners) external;
  function burnTypeForOwnerAddress(uint256 _typeId, uint256 _quantity, address _typeOwnerAddress) external returns (bool);
  function mintTypeToAddress(uint256 _typeId, uint256 _quantity, address _toAddress) external returns (bool);
  function bulkSafeTransfer(uint256 _typeId, uint256 _quantityPerRecipient, address[] calldata recipients) external;
}

// File: contracts/IWRLD_Name_Service_Registry.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

interface IWRLD_Name_Service_Registry is IERC165 {
  function register(address _registerer, string[] calldata _names, uint16[] memory _registrationYears) external;
  function extendRegistration(string[] calldata _names, uint16[] calldata _additionalYears) external;

  function getNameTokenId(string calldata _name) external view returns (uint256);

  event NameRegistered(string indexed idxName, string name, uint16 registrationYears);
  event NameRegistrationExtended(string indexed idxName, string name, uint16 additionalYears);
  event NameControllerUpdated(string indexed idxName, string name, address controller);

  event ResolverStringRecordUpdated(string indexed idxName, string name, string record, string value, string typeOf, uint256 ttl, address resolver);
  event ResolverAddressRecordUpdated(string indexed idxName, string name, string record, address value, uint256 ttl, address resolver);
  event ResolverUintRecordUpdated(string indexed idxName, string name, string record, uint256 value, uint256 ttl, address resolver);
  event ResolverIntRecordUpdated(string indexed idxName, string name, string record, int256 value, uint256 ttl, address resolver);

  event ResolverStringEntryUpdated(address indexed setter, string indexed idxName, string indexed idxEntry, string name, string entry, string value);
  event ResolverAddressEntryUpdated(address indexed setter, string indexed idxName, string indexed idxEntry, string name, string entry, address value);
  event ResolverUintEntryUpdated(address indexed setter, string indexed idxName, string indexed idxEntry, string name, string entry, uint256 value);
  event ResolverIntEntryUpdated(address indexed setter, string indexed idxName, string indexed idxEntry, string name, string entry, int256 value);
}

// File: contracts/StringUtils.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

library StringUtils {
    /**
     * @dev Returns the length of a given string
     *
     * @param s The string to measure the length of
     * @return The length of the input string
     */
    function strlen(string memory s) internal pure returns (uint256) {
        uint len;
        uint i = 0;
        uint bytelength = bytes(s).length;
        for (len = 0; i < bytelength; len++) {
            bytes1 b = bytes(s)[i];
            if (b < 0x80) {
                i += 1;
            } else if (b < 0xE0) {
                i += 2;
            } else if (b < 0xF0) {
                i += 3;
            } else if (b < 0xF8) {
                i += 4;
            } else if (b < 0xFC) {
                i += 5;
            } else {
                i += 6;
            }
        }
        return len;
    }

    /**
     * @dev Checks the string for RFC3986 reserved characters.
     *      Includes a few more extra chars for security. Specifically, percent encoding is not allowed.
     *
     * @param s The string to check
     * @return T/F
     */
    function validateUriCharset(string memory s) internal pure returns (bool) {
        uint len;
        uint i = 0;
        uint bytelength = bytes(s).length;
        bytes1 b0 = bytes(s)[0];
        if (b0==0x2d||b0==0x5f||b0==0x7e) {  // not allowed: - _ ~
            return false;
        }
        for (len = 0; i < bytelength; len++) {
            bytes1 b = bytes(s)[i];
            if (b < 0x80) {
                i += 1;
                if (b<0x2d||b==0x2e||b==0x2f||(b>=0x3a&&b<=0x40)||b==0x5b||b==0x5c||b==0x5d||b==0x5e||b==0x60||b==0x7b||b==0x7c||b==0x7d||b==0x7f) {
                    return false;
                }
            } else if (b < 0xE0) {
                i += 2;
            } else if (b < 0xF0) {
                i += 3;
            } else if (b < 0xF8) {
                i += 4;
            } else if (b < 0xFC) {
                i += 5;
            } else {
                i += 6;
            }
        }
        return true;
    }

    /**
     * @dev Apply UTS-46 normalization to a string. (implementation deviates from the standard)
     *
     * @param s The string to normalize
     * @return T/F
     */
    function UTS46Normalize(string memory s) internal pure returns (string memory) {
        uint len;
        uint i = 0;
        uint bytelength = bytes(s).length;
        bytes1 b0 = bytes(s)[0];

        if (b0==0x2d||b0==0x5f||b0==0x7e) {  // not allowed in first position: - _ ~
            revert("invalid charset");
        }
        for (len = 0; i < bytelength; len++) {
            bytes1 b = bytes(s)[i];
            if (b < 0x80) {
                if (b<0x2d||b==0x2e||b==0x2f||(b>=0x3a&&b<=0x40)||b==0x5b||b==0x5c||b==0x5d||b==0x5e||b==0x60||b==0x7b||b==0x7c||b==0x7d||b==0x7f) {
                    revert("invalid charset");
                }
                if (b>=0x41&&b<=0x5a) {
                    bytes(s)[i] = bytes1(uint8(b) + 32);
                }
                i += 1;
            } else if (b < 0xE0) {
                i += 2;
            } else if (b < 0xF0) {
                i += 3;
            } else if (b < 0xF8) {
                i += 4;
            } else if (b < 0xFC) {
                i += 5;
            } else {
                i += 6;
            }
        }
        return s;
    }
}

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.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 Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// File: @openzeppelin/contracts/token/ERC1155/IERC1155.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC1155 compliant contract, as defined in the
 * https://eips.ethereum.org/EIPS/eip-1155[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155 is IERC165 {
    /**
     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
     */
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);

    /**
     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
     * transfers.
     */
    event TransferBatch(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256[] ids,
        uint256[] values
    );

    /**
     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
     * `approved`.
     */
    event ApprovalForAll(address indexed account, address indexed operator, bool approved);

    /**
     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
     *
     * If an {URI} event was emitted for `id`, the standard
     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
     * returned by {IERC1155MetadataURI-uri}.
     */
    event URI(string value, uint256 indexed id);

    /**
     * @dev Returns the amount of tokens of token type `id` owned by `account`.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) external view returns (uint256);

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
        external
        view
        returns (uint256[] memory);

    /**
     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
     *
     * Emits an {ApprovalForAll} event.
     *
     * Requirements:
     *
     * - `operator` cannot be the caller.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address account, address operator) external view returns (bool);

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes calldata data
    ) external;

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata amounts,
        bytes calldata data
    ) external;
}

// File: @openzeppelin/contracts/utils/introspection/IERC165.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @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);
}