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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

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

/// @title Leaderboard
/// @notice Leaderboard entries for the Race Grid blockchain racing game.
contract Leaderboard is Ownable {
    /// @notice The results for each race.
    struct Result {
        address player;
        uint256 time;
        uint256 date;
    }

    /// @notice The list of results.
    Result[] private results;

    /// @notice Initialize the contract with the caller as owner.
    constructor() Ownable(msg.sender) {}

    /// @notice Add new entry to the leaderboard.
    /// @param player The address of the player.
    /// @param time The duration of the race.
    // For hackathon or testnets it's okay to leave this open. For mainnet needs to be `onlyOwner`.
    function updateLeaderboard(address player, uint256 time) external {
        results.push(Result({player: player, time: time, date: block.timestamp}));
    }

    /// @notice Retrieve leaderboard results.
    /// @param startIndex The start index, inclusive.
    /// @param endIndex The end index, exclusive.
    /// @return The array with the paginated results.
    /// @dev Using pagination to avoid OOG. Client is responsible for aggregation and sorting.
    function getResultsPaginated(uint256 startIndex, uint256 endIndex) external view returns (Result[] memory) {
        Result[] memory resultsCopy = results;
        Result[] memory paginatedResults = new Result[](endIndex - startIndex);
        uint256 paginatedResultsIndex;
        for (uint256 i = startIndex; i < endIndex; ++i) {
            paginatedResults[paginatedResultsIndex] = resultsCopy[i];
            ++paginatedResultsIndex;
        }
        return paginatedResults;
    }

    /// @notice Delete one entry from the leaderboard.
    /// @param targetIndex The index to delete.
    /// @dev Mainly used for testing.
    function deleteLeaderboardEntry(uint256 targetIndex) external onlyOwner {
        Result[] memory resultsCopy = results;
        uint256 lastIndex = results.length - 1;
        if (targetIndex != lastIndex) {
            Result memory lastItem = resultsCopy[targetIndex];
            results[lastIndex] = resultsCopy[targetIndex];
            results[targetIndex] = lastItem;
        }
        results.pop();
    }

    /// @notice Delete the entire leaderboard.
    /// @dev Mainly used for testing.
    function deleteLeaderboard() external onlyOwner {
        delete results;
    }

    /// @notice Retrive leaderboard length.
    /// @dev Can to be used when calling with pagination.
    function getResultsLength() external view returns (uint256) {
        return results.length;
    }
}

// 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;
    }
}

{
  "remappings": [
    "forge-std/=dependencies/forge-std-1.9.3/src/",
    "@openzeppelin/contracts-upgradeable/=dependencies/@openzeppelin-contracts-upgradeable-5.0.2/",
    "@openzeppelin/contracts/=dependencies/@openzeppelin-contracts-5.0.2/",
    "openzeppelin-foundry-upgrades/=dependencies/openzeppelin-foundry-upgrades-0.3.6/src/",
    "solidity-stringutils/=dependencies/openzeppelin-foundry-upgrades-0.3.6/lib/solidity-stringutils/",
    "@openzeppelin-contracts-5.0.2/=dependencies/@openzeppelin-contracts-5.0.2/",
    "@openzeppelin-contracts-upgradeable-5.0.2/=dependencies/@openzeppelin-contracts-upgradeable-5.0.2/",
    "ds-test/=dependencies/openzeppelin-foundry-upgrades-0.3.6/lib/solidity-stringutils/lib/ds-test/src/",
    "forge-std-1.9.3/=dependencies/forge-std-1.9.3/src/",
    "forge-std/=dependencies/openzeppelin-foundry-upgrades-0.3.6/lib/forge-std/src/",
    "openzeppelin-foundry-upgrades-0.3.6/=dependencies/openzeppelin-foundry-upgrades-0.3.6/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": false,
  "libraries": {}
}

[{"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":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[],"name":"deleteLeaderboard","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"targetIndex","type":"uint256"}],"name":"deleteLeaderboardEntry","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getResultsLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"startIndex","type":"uint256"},{"internalType":"uint256","name":"endIndex","type":"uint256"}],"name":"getResultsPaginated","outputs":[{"components":[{"internalType":"address","name":"player","type":"address"},{"internalType":"uint256","name":"time","type":"uint256"},{"internalType":"uint256","name":"date","type":"uint256"}],"internalType":"struct Leaderboard.Result[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"player","type":"address"},{"internalType":"uint256","name":"time","type":"uint256"}],"name":"updateLeaderboard","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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