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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/access/Ownable.sol";

contract DestraStorageNodeRegistry is Ownable {
    event NodeRegistered(
        address indexed owner,
        string peerId,
        string locationMultiAddr
    );
    event NodeDeregistered(address indexed owner, string peerId);
    event LocationUpdated(string peerId, string newLocation);
    event CheckpointRecorded(address indexed owner, string peerId, uint timestamp);

    struct Node {
        address owner;
        string peerId;
        uint registrationTime;
        string locationMultiAddr;
        uint lastCheckpoint;
    }

    mapping(string => Node) public storageNodes;

    constructor() Ownable(msg.sender) {}

    function registerNode(
        string memory _peerId,
        string memory _locationMultiAddr
    ) external {
        require(
            storageNodes[_peerId].owner == address(0),
            "Node already registered"
        );

        storageNodes[_peerId] = Node({
            owner: msg.sender,
            peerId: _peerId,
            registrationTime: block.timestamp,
            locationMultiAddr: _locationMultiAddr,
            lastCheckpoint: block.timestamp
        });
        emit NodeRegistered(msg.sender, _peerId, _locationMultiAddr);
    }

    function updateLocation(
        string memory _peerId,
        string memory _newLocation
    ) external {
        require(
            storageNodes[_peerId].owner == msg.sender,
            "You are not the owner of this peerId"
        );
        storageNodes[_peerId].locationMultiAddr = _newLocation;
        emit LocationUpdated(_peerId, _newLocation);
    }

    function deregisterNode(string memory _peerId) external {
        require(
            storageNodes[_peerId].owner == msg.sender,
            "Not the owner of this peerId"
        );

        delete storageNodes[_peerId];

        emit NodeDeregistered(msg.sender, _peerId);
    }

    function recordCheckpoint(string memory _peerId) external {
        require(
            storageNodes[_peerId].owner == msg.sender,
            "You are not the owner of this peerId"
        );

        storageNodes[_peerId].lastCheckpoint = block.timestamp;

        emit CheckpointRecorded(msg.sender, _peerId, block.timestamp);
    }
}

// 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);
    }
}

// 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;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"string","name":"peerId","type":"string"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"CheckpointRecorded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"peerId","type":"string"},{"indexed":false,"internalType":"string","name":"newLocation","type":"string"}],"name":"LocationUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"string","name":"peerId","type":"string"}],"name":"NodeDeregistered","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"string","name":"peerId","type":"string"},{"indexed":false,"internalType":"string","name":"locationMultiAddr","type":"string"}],"name":"NodeRegistered","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"string","name":"_peerId","type":"string"}],"name":"deregisterNode","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"_peerId","type":"string"}],"name":"recordCheckpoint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_peerId","type":"string"},{"internalType":"string","name":"_locationMultiAddr","type":"string"}],"name":"registerNode","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"","type":"string"}],"name":"storageNodes","outputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"string","name":"peerId","type":"string"},{"internalType":"uint256","name":"registrationTime","type":"uint256"},{"internalType":"string","name":"locationMultiAddr","type":"string"},{"internalType":"uint256","name":"lastCheckpoint","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_peerId","type":"string"},{"internalType":"string","name":"_newLocation","type":"string"}],"name":"updateLocation","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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