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



// SPDX-License-Identifier: MIT

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() {
        _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);
    }
}

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



// SPDX-License-Identifier: MIT

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: contracts/L1/deployment/AddressDictator.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import { Lib_AddressManager } from "../../libraries/resolver/Lib_AddressManager.sol";

/**
 * @title AddressDictator
 * @dev The AddressDictator (glory to Arstotzka) is a contract that allows us to safely manipulate
 *      many different addresses in the AddressManager without transferring ownership of the
 *      AddressManager to a hot wallet or hardware wallet.
 */
contract AddressDictator {
    /*********
     * Types *
     *********/

    struct NamedAddress {
        string name;
        address addr;
    }

    /*************
     * Variables *
     *************/

    Lib_AddressManager public manager;
    address public finalOwner;
    NamedAddress[] namedAddresses;

    /***************
     * Constructor *
     ***************/

    /**
     * @param _manager Address of the AddressManager contract.
     * @param _finalOwner Address to transfer AddressManager ownership to afterwards.
     * @param _names Array of names to associate an address with.
     * @param _addresses Array of addresses to associate with the name.
     */
    constructor(
        Lib_AddressManager _manager,
        address _finalOwner,
        string[] memory _names,
        address[] memory _addresses
    ) {
        manager = _manager;
        finalOwner = _finalOwner;
        require(
            _names.length == _addresses.length,
            "AddressDictator: Must provide an equal number of names and addresses."
        );
        for (uint256 i = 0; i < _names.length; i++) {
            namedAddresses.push(NamedAddress({ name: _names[i], addr: _addresses[i] }));
        }
    }

    /********************
     * Public Functions *
     ********************/

    /**
     * Called to finalize the transfer, this function is callable by anyone, but will only result in
     * an upgrade if this contract is the owner Address Manager.
     */
    function setAddresses() external {
        for (uint256 i = 0; i < namedAddresses.length; i++) {
            manager.setAddress(namedAddresses[i].name, namedAddresses[i].addr);
        }
        // note that this will revert if _finalOwner == currentOwner
        manager.transferOwnership(finalOwner);
    }

    /**
     * Transfers ownership of this contract to the finalOwner.
     * Only callable by the Final Owner, which is intended to be our multisig.
     * This function shouldn't be necessary, but it gives a sense of reassurance that we can recover
     * if something really surprising goes wrong.
     */
    function returnOwnership() external {
        require(msg.sender == finalOwner, "AddressDictator: only callable by finalOwner");
        manager.transferOwnership(finalOwner);
    }

    /******************
     * View Functions *
     ******************/

    /**
     * Returns the full namedAddresses array.
     */
    function getNamedAddresses() external view returns (NamedAddress[] memory) {
        return namedAddresses;
    }
}

// File: contracts/libraries/resolver/Lib_AddressManager.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

/* External Imports */
import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";

/**
 * @title Lib_AddressManager
 */
contract Lib_AddressManager is Ownable {
    /**********
     * Events *
     **********/

    event AddressSet(string indexed _name, address _newAddress, address _oldAddress);

    /*************
     * Variables *
     *************/

    mapping(bytes32 => address) private addresses;

    /********************
     * Public Functions *
     ********************/

    /**
     * Changes the address associated with a particular name.
     * @param _name String name to associate an address with.
     * @param _address Address to associate with the name.
     */
    function setAddress(string memory _name, address _address) external onlyOwner {
        bytes32 nameHash = _getNameHash(_name);
        address oldAddress = addresses[nameHash];
        addresses[nameHash] = _address;

        emit AddressSet(_name, _address, oldAddress);
    }

    /**
     * Retrieves the address associated with a given name.
     * @param _name Name to retrieve an address for.
     * @return Address associated with the given name.
     */
    function getAddress(string memory _name) external view returns (address) {
        return addresses[_getNameHash(_name)];
    }

    /**********************
     * Internal Functions *
     **********************/

    /**
     * Computes the hash of a name.
     * @param _name Name to compute a hash for.
     * @return Hash of the given name.
     */
    function _getNameHash(string memory _name) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked(_name));
    }
}