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

import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "../interfaces/IUniswapV2Router02.sol";
import "../interfaces/IUniswapV2Pair.sol";
import "../interfaces/IBurnToken.sol";
import "../interfaces/IToken.sol";
import "../interfaces/IManager.sol";

contract LPCreator is ReentrancyGuard {
    IManager private Manager;
    IBurnToken private BurnToken;
    IUniswapV2Pair private Pair;
    IToken private Token;
    IUniswapV2Router02 private router; // Uniswap V2 Router

    uint256 public totalLPCreated;
    uint256 private accETHRewardPerToken;
    uint256 private accTokenRewardPerToken;

    struct UserInfos {
        uint256 lpQty;
        uint256 tokenDebt;
        uint256 ethDebt;
    }

    mapping(address => UserInfos) public userInfos;

    /*------------------------------------*
                  CONSTRUCTOR
    *------------------------------------*/

    constructor(address _manager) {
        Manager = IManager(_manager);
        router = IUniswapV2Router02(0xCf5d764c542e77b6eBDe2f4c292fAF7487d3E296);
    }

    /*------------------------------------*
                    MODIFIERS
    *------------------------------------*/

    modifier onlyOwner() {
        require(msg.sender == Manager.owner(), "Not authorized");
        _;
    }

    /*------------------------------------*
                    SETTERS
    *------------------------------------*/

    function setManager(address _manager) external onlyOwner {
        Manager = IManager(_manager);
    }

    function setRouter(address _router) external onlyOwner {
        router = IUniswapV2Router02(_router);
    }

    function setPair(address _pair) external onlyOwner {
        Pair = IUniswapV2Pair(_pair);
    }

    function addETHRewards() external payable onlyOwner {
        accETHRewardPerToken += (msg.value * 1e18) / totalLPCreated;
    }

    function addTokenRewards(uint256 amount) external onlyOwner {
        accTokenRewardPerToken += (amount * 1e18) / totalLPCreated;
    }

    function update() external onlyOwner {
        BurnToken = IBurnToken(_getContract("Burn"));
        Token = IToken(_getContract("Token"));
        Token.approve(address(router), type(uint256).max);
    }

    /*------------------------------------*
                    FUNCTIONS
    *------------------------------------*/

    function addLp() external payable nonReentrant {
        uint256 amountWETH = msg.value;
        uint256 tokenAmount = getTokenRequired(amountWETH);

        require(
            BurnToken.getLpPower(msg.sender) >= tokenAmount,
            "Insufficient LP Power"
        );

        Token.transferFrom(msg.sender, address(this), tokenAmount);
        (uint256 realAmount, uint256 realETH, uint256 lpReceived) = router
            .addLiquidityETH{value: amountWETH}(
            address(Token),
            tokenAmount,
            0,
            0,
            address(this),
            block.timestamp + 10 minutes
        );

        BurnToken.manageLPPower(msg.sender, realAmount);
        UserInfos storage _userInfo = userInfos[msg.sender];
        _userInfo.lpQty += lpReceived;
        _userInfo.tokenDebt = (_userInfo.lpQty * accTokenRewardPerToken) / 1e18;
        _userInfo.ethDebt = (_userInfo.lpQty * accETHRewardPerToken) / 1e18;
        totalLPCreated += lpReceived;

        uint256 excessToken = tokenAmount - realAmount;
        if (excessToken > 1e9) {
            Token.transfer(msg.sender, excessToken);
        }

        uint256 excessETH = msg.value - realETH;
        if (excessETH > 1e9) {
            (bool tmpSuccess, ) = payable(msg.sender).call{
                value: excessETH,
                gas: 30000
            }("");
            require(tmpSuccess, "Transfer failed");
        }
    }

    function claim() external nonReentrant {
        _claim(msg.sender);
    }

    /*------------------------------------*
                    INTERNAL
    *------------------------------------*/

    function _claim(address sender) private {
        (uint256 tokenRewards, uint256 ethRewards) = getPendingRewards(sender);

        if (tokenRewards > 0) {
            Token.transfer(sender, tokenRewards);
        }
        if (ethRewards > 0) {
            bool tmpSuccess1;
            (tmpSuccess1, ) = payable(sender).call{
                value: ethRewards,
                gas: 500000
            }("");

            require(tmpSuccess1, "Transfer failed");
        }
    }

    /*------------------------------------*
                    GETTERS
    *------------------------------------*/

    /**
     * @dev Get LP value in ETH of an account
     * @param account Account address
     */
    function getLPValue(address account) external view returns (uint256) {
        (uint112 reserveETH, , ) = Pair.getReserves();
        uint256 pairSupply = Pair.totalSupply();

        return (userInfos[account].lpQty * reserveETH) / pairSupply;
    }

    function getPendingRewards(
        address account
    ) public view returns (uint256, uint256) {
        UserInfos memory _userInfo = userInfos[account];
        return (
            (_userInfo.lpQty * accTokenRewardPerToken) / 1e18,
            (_userInfo.lpQty * accETHRewardPerToken) / 1e18
        );
    }

    function getTokenRequired(uint256 ETHAmount) public view returns (uint256) {
        (uint256 reserveToken, uint256 reserveWETH, ) = Pair.getReserves();
        return router.quote(ETHAmount, reserveWETH, reserveToken);
    }

    /*------------------------------------*
                    UTILS
    *------------------------------------*/

    function _getContract(string memory name) internal view returns (address) {
        return Manager.getContract(name);
    }

    function withdrawERC20(address token, uint256 amount) external onlyOwner {
        IToken(token).transfer(msg.sender, amount);
    }

    function withdrawETH(uint256 amount) external onlyOwner {
        bool tmpSuccess1;
        (tmpSuccess1, ) = payable(msg.sender).call{value: amount, gas: 5000000}(
            ""
        );

        require(tmpSuccess1, "Transfer failed");
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @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;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    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() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

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

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

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IBurnToken is IERC20 {
    function mint(address account, uint256 amount) external;
    function manageLPPower(address sender, uint256 amount) external;
    function getLpPower(address account) external view returns (uint256);
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.20;

interface IManager {
    function getContract(string memory name) external view returns (address);
    function owner() external view returns (address);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.24;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IToken is IERC20 {
    function mint(address to, uint256 value) external;
    function burnFrom(address account, uint256 value) external;
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;

interface IUniswapV2Pair {
    function totalSupply() external view returns (uint);
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2;

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);

    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

[{"inputs":[{"internalType":"address","name":"_manager","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ReentrancyGuardReentrantCall","type":"error"},{"inputs":[],"name":"addETHRewards","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"addLp","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"addTokenRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getLPValue","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getPendingRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"ETHAmount","type":"uint256"}],"name":"getTokenRequired","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_manager","type":"address"}],"name":"setManager","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_pair","type":"address"}],"name":"setPair","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_router","type":"address"}],"name":"setRouter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalLPCreated","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"update","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"userInfos","outputs":[{"internalType":"uint256","name":"lpQty","type":"uint256"},{"internalType":"uint256","name":"tokenDebt","type":"uint256"},{"internalType":"uint256","name":"ethDebt","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawETH","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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