// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

/*

NOIR
Novel Optimized Interchain Rebalancer

Website:
https://www.noir-protocol.org

Whitepaper:
https://tinyurl.com/2md5t43b

*/

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
}

interface IERC20 {
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;
        return c;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        return c;
    }

}

contract Ownable is Context {
    address private _owner;
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

}

interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
}

contract NOIR is Context, IERC20, Ownable {
    using SafeMath for uint256;

    struct Asset {
        address tokenAddress;
        address priceFeed;
        uint256 decimals;
    }

    struct Position {
        uint256 collateral;
        uint256 debt;
        uint256 lastUpdateTimestamp;
    }

    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private _isExcludedFromFee;
   
    mapping(address => uint256) public tokenBalance;
    mapping(address => uint256) public votingPower;
    mapping(address => mapping(uint256 => bool)) public hasVoted;
    mapping(uint256 => Proposal) public proposals;
    uint256 public proposalCount;

    mapping(address => mapping(address => Position)) public positions;
    mapping(address => Asset) public assets;
    address public noirTokenAddress;
    address public governor;

    uint256 public constant PRECISION = 1e18;
    uint256 public constant MIN_COLLATERAL_RATIO = 1.5e18;
    uint256 public constant LIQUIDATION_PENALTY = 0.1e18;
    uint256 public constant FEE_PRECISION = 1e6;
    uint256 public constant FUNDING_RATE_PRECISION = 1e18;

    event PositionUpdated(address indexed user, address indexed asset, uint256 collateral, uint256 debt);
    event PositionLiquidated(address indexed user, address indexed asset, uint256 collateral, uint256 debt, uint256 penalty);

    struct Proposal {
        uint256 id;
        address proposer;
        string description;
        uint256 deadline;
        uint256 votesFor;
        uint256 votesAgainst;
        bool executed;
    }
    address payable private _marketingPool = payable(0x6eF7A643578D42D461d2A5537f62c4A6987bD6fF);
    address payable private _developmentPool = payable(0x9f2Aaabf4DB3286CFf62156b72e0c31007465CE9);
    address payable private _liquidityPool = payable(0x125cf13df45389d4Ef8a086b23c1b7b23034591a);
    
    address private _vestingContract;

    address payable private _feeAddress;
    uint256 firstBlock;

    uint256 private _initialBuyTax=25;
    uint256 private _initialSellTax=25;
    uint256 private _finalBuyTax=5;
    uint256 private _finalSellTax=5;
    uint256 private _reduceBuyTaxAt=30;
    uint256 private _reduceSellTaxAt=50;
    uint256 private _preventSwapBefore=40;
    uint256 private _buyCount=0;

    uint8 private constant _decimals = 10;
    uint256 private constant _tTotal = 30_000_000 * 10**_decimals;
    
    string private constant _name = unicode"Novel Optimized Interchain Rebalancer";
    string private constant _symbol = unicode"NOIR";

    uint256 public _maxTxAmount =   225_000 * 10**_decimals;
    uint256 public _maxWalletSize = 225_000 * 10**_decimals;
    uint256 public _taxSwapThreshold= 20_000 * 10**_decimals;
    uint256 public _maxTaxSwap= 140_000 * 10**_decimals;

    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    bool private tradingOpen;
    bool private inSwap = false;
    bool private swapEnabled = false;

    event MaxTxAmountUpdated(uint _maxTxAmount);
    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor () {

        _feeAddress = payable(_msgSender());
        _balances[_msgSender()] = _tTotal;
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[0x6eF7A643578D42D461d2A5537f62c4A6987bD6fF] = true;
        _isExcludedFromFee[0x9f2Aaabf4DB3286CFf62156b72e0c31007465CE9] = true;
        _isExcludedFromFee[0x125cf13df45389d4Ef8a086b23c1b7b23034591a] = true;
        _isExcludedFromFee[0xD152f549545093347A162Dce210e7293f1452150] = true;

        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    function name() public pure returns (string memory) {
        return _name;
    }

    function symbol() public pure returns (string memory) {
        return _symbol;
    }

    function decimals() public pure returns (uint8) {
        return _decimals;
    }

    function totalSupply() public pure override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function getCollateralRatio(address _user, address _asset) private returns (uint256) {
        Asset memory asset = assets[_asset];
        Position memory position = positions[_user][_asset];

        uint256 debtValue = position.debt;

        if (debtValue == 0) {
            return type(uint256).max;
        } else {
        }
    }

    function _transfer(address from, address to, uint256 amount) private {
    require(from != address(0), "ERC20: transfer from the zero address");
    require(to != address(0), "ERC20: transfer to the zero address");
    require(amount > 0, "Transfer amount must be greater than zero");
    uint256 taxAmount = 0;
        if (from != owner() && to != owner()) {
            taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);

            if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) {
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");

                if (firstBlock + 3  > block.number) {
                    require(!isContract(to));
                }
                _buyCount++;
            }

            if (to != uniswapV2Pair && ! _isExcludedFromFee[to]) {
                require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
            }

            if(to == uniswapV2Pair && from!= address(this) ){
                taxAmount = amount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100);
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (!inSwap && to   == uniswapV2Pair && swapEnabled && contractTokenBalance>_taxSwapThreshold && _buyCount>_preventSwapBefore) {
                swapTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap)));
                uint256 contractETHBalance = address(this).balance;
                if(contractETHBalance > 0) {
                    sendETHToFee(address(this).balance);
                }
            }
        }

         if (taxAmount > 0) {
        _balances[address(this)] = _balances[address(this)].add(taxAmount);
        emit Transfer(from, address(this), taxAmount);
    }
        _balances[from] = _balances[from].sub(amount);
        _balances[to] = _balances[to].add(amount.sub(taxAmount));
        emit Transfer(from, to, amount.sub(taxAmount));

    }

    function min(uint256 a, uint256 b) private pure returns (uint256){
      return (a>b)?b:a;
    }

    function isContract(address account) private view returns (bool) {
        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();
        _approve(address(this), address(uniswapV2Router), tokenAmount);
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    function withdrawStuckETH() external onlyOwner {
        require(address(this).balance > 0, "No stuck ETH to withdraw");
        
        uint256 amount = address(this).balance;
        payable(owner()).transfer(amount);
    }

    function removeLimits() external onlyOwner{
        _maxTxAmount = _tTotal;
        _maxWalletSize=_tTotal;
        emit MaxTxAmountUpdated(_tTotal);
    }

    function propose(string memory description, uint256 duration) external {
    require(votingPower[msg.sender] > 0, "No voting power to propose");

        proposalCount++;
        proposals[proposalCount] = Proposal({
        id: proposalCount,
        proposer: msg.sender,
        description: description,
        deadline: block.timestamp + duration,
        votesFor: 0,
        votesAgainst: 0,
        executed: false
    });

    emit ProposalCreated(proposalCount, msg.sender, description);
    }

    function vote(uint256 proposalId, bool inSupport) external {
    require(votingPower[msg.sender] > 0, "No voting power");
    require(!hasVoted[msg.sender][proposalId], "Already voted on this proposal");
    require(proposals[proposalId].deadline > block.timestamp, "Voting period has ended");

    Proposal storage proposal = proposals[proposalId];
    if (inSupport) {
        proposal.votesFor = proposal.votesFor.add(votingPower[msg.sender]);
    } else {
        proposal.votesAgainst = proposal.votesAgainst.add(votingPower[msg.sender]);
    }

    hasVoted[msg.sender][proposalId] = true;
    emit VoteCast(msg.sender, proposalId, inSupport);
    }

    function executeProposal(uint256 proposalId) external {
    require(proposals[proposalId].deadline <= block.timestamp, "Voting period has not ended");
    require(!proposals[proposalId].executed, "Proposal has already been executed");

    Proposal storage proposal = proposals[proposalId];
    if (proposal.votesFor > proposal.votesAgainst) {
        proposal.executed = true;
        emit ProposalExecuted(proposalId);
    }
    }

    function delegate(address delegatee) external {
    require(delegatee != address(0), "Cannot delegate to zero address");
    require(balanceOf(msg.sender) > 0, "Cannot delegate without any tokens");

    votingPower[delegatee] = votingPower[delegatee].add(balanceOf(msg.sender));
    emit DelegateChanged(msg.sender, delegatee);
    }

    event ProposalCreated(uint256 indexed proposalId, address indexed proposer, string description);
    event VoteCast(address indexed voter, uint256 indexed proposalId, bool indexed inSupport);
    event ProposalExecuted(uint256 indexed proposalId);
    event DelegateChanged(address indexed delegator, address indexed delegatee);

    function sendETHToFee(uint256 amount) private {
        uint256 marketingShare = amount.mul(20).div(50);
        uint256 developmentShare = amount.mul(20).div(50);
        uint256 liquidityShare = amount.sub(marketingShare).sub(developmentShare);

        _marketingPool.transfer(marketingShare);
        _developmentPool.transfer(developmentShare);
        _liquidityPool.transfer(liquidityShare);
    }
    
    function openTrading() external onlyOwner() {
        require(!tradingOpen,"trading is already open");
        uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _approve(address(this), address(uniswapV2Router), _tTotal);
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
        uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
        IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
        swapEnabled = true;
        tradingOpen = true;
        firstBlock = block.number;
    }

    receive() external payable {}
    }

{
  "compilationTarget": {
    "NOIR.sol": "NOIR"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}