// File: GLIQUID.sol



// SPDX-License-Identifier: MIT 
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//              ▀                                                     
// https://t.me/glitchproto
// https://twitter.com/protocolglitch
// https://discord.gg/jyehnJHW9q
// GLIQUID Token for the GLITCH Protocol
//
pragma solidity ^0.8.0;

import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/token/ERC20/ERC20.sol";
import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/utils/ReentrancyGuard.sol";
import "https://raw.githubusercontent.com/smartcontractkit/chainlink/develop/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/utils/Pausable.sol";
import "./GLIQUIDITY.sol";

library SafeMath {

  function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
    if (a == 0) {
      return 0;
    }
    c = a * b;
    assert(c / a == b);
    return c;
  }

  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    return a / b;
  }

  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    assert(b <= a);
    return a - b;
  }

  function add(uint256 a, uint256 b) internal pure returns (uint256 c) {
    c = a + b;
    assert(c >= a);
    return c;
  }
}

contract GLIQUID is ERC20, ReentrancyGuard, Pausable {
    using SafeMath for uint256;

    struct TokenData {
        address tokenAddress;
        address chainlinkFeed;
    }

    mapping(address => TokenData) public tokens;
    address[] public tokenAddresses;
    address public owner;
    GLIQUIDITY public gliquidity;
    
    modifier onlyGLIQUIDITY() {
        require(msg.sender == address(gliquidity), "Not authorized");
        _;
    }

    modifier onlyOwner() {
        require(msg.sender == owner, "Not authorized");
        _;
    }

    function pause() external onlyOwner {
        _pause();
    }

    function unpause() external onlyOwner {
        _unpause();
    }

    function addToken(address _tokenAddress, address _chainlinkFeed) public onlyOwner {
        require(tokens[_tokenAddress].tokenAddress == address(0), "Token already added");
        tokens[_tokenAddress] = TokenData(_tokenAddress, _chainlinkFeed);
        tokenAddresses.push(_tokenAddress);
    }

    constructor() ERC20("GLIQUID Token", "GLIQUID") {
        owner = msg.sender;
        // Initialize with Chainlink price feed addresses for each token
        addToken(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2, 0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419); // WETH with ETH/USD Price Feed
        addToken(0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48, 0x8fFfFfd4AfB6115b954Bd326cbe7B4BA576818f6); // USDC with USDC/USD Price Feed
        addToken(0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599, 0xF4030086522a5bEEa4988F8cA5B36dbC97BeE88c); // WBTC with BTC/USD Price Feed
        addToken(0x6B175474E89094C44Da98b954EedeAC495271d0F, 0xAed0c38402a5d19df6E4c03F4E2DceD6e29c1ee9); // DAI with DAI/USD Price Feed 
        addToken(0xdAC17F958D2ee523a2206206994597C13D831ec7, 0x3E7d1eAB13ad0104d2750B8863b489D65364e32D); // USDT with USDT/USD Price Feed
    }

    function getTokenAddresses() external view returns (address[] memory) {
        return tokenAddresses;
    }

    function isTokenSupported(address token) external view returns (bool) {
        for (uint i = 0; i < tokenAddresses.length; i++) {
            if (tokenAddresses[i] == token) {
                return true;
            }
        }
        return false;
    }

    function updateTokenFeedAddress(address _tokenAddress, address _newFeedAddress) external onlyOwner {
        require(_tokenAddress != address(0) && _newFeedAddress != address(0), "Invalid address");
        
        require(tokens[_tokenAddress].tokenAddress != address(0), "Token not recognized");
        
        tokens[_tokenAddress].chainlinkFeed = _newFeedAddress;
    }

    function getTokenValueInPool(address _tokenAddress) public view returns (uint256) {
        uint256 tokenDecimals = IExtendedERC20(_tokenAddress).decimals();
        uint256 tokenBalance = IERC20(_tokenAddress).balanceOf(address(gliquidity));
        
        uint256 tokenPrice = getTokenPriceUSD(_tokenAddress);
        
        return tokenBalance.mul(tokenPrice).div(10 ** tokenDecimals);
    }

    function getWeight(address _tokenAddress) public view returns (uint256) {
        uint256 tokenValueInPool = getTokenValueInPool(_tokenAddress);

        uint256 totalValue = getTotalValueInPool();

        if (totalValue == 0) {
            return 0;
        }

        if (tokenValueInPool == 0) {
            return 0;
        }

        return tokenValueInPool.mul(1e18).div(totalValue);
    }

    function getTotalValueInPool() public view returns (uint256) {
        uint256 totalValue = 0;
        for (uint256 i = 0; i < tokenAddresses.length; i++) {
            address tokenAddress = tokenAddresses[i];
            
            uint256 tokenValue = getTokenValueInPool(tokenAddress);
            
            totalValue = totalValue.add(tokenValue);
        }
        return totalValue;
    }

    function getTokenPriceUSD(address _tokenAddress) public view returns (uint256) {
        AggregatorV3Interface priceFeed = AggregatorV3Interface(tokens[_tokenAddress].chainlinkFeed);
        (, int price,,,) = priceFeed.latestRoundData();
        uint8 decimals = priceFeed.decimals();
        return uint256(price).mul(10 ** 18).div(10 ** decimals);
    }

    function getPrice() public view returns (uint256) {
        uint256 gliquidSupply = totalSupply();

        if (gliquidSupply == 0) {
            return 0;
        }

        uint256 totalValue = 0;

        for (uint256 i = 0; i < tokenAddresses.length; i++) {
            address tokenAddress = tokenAddresses[i];
            uint256 tokenDecimals = IExtendedERC20(tokenAddress).decimals();
            uint256 tokenBalance = IERC20(tokenAddress).balanceOf(address(gliquidity));
        
            uint256 scaledTokenBalance;
            if (tokenDecimals < 18) {
                scaledTokenBalance = tokenBalance.mul(10 ** (18 - tokenDecimals));
            } else {
                scaledTokenBalance = tokenBalance;
            }

            uint256 tokenPrice = getTokenPriceUSD(tokenAddress);
            totalValue = totalValue.add(scaledTokenBalance.mul(tokenPrice));
        }

        return totalValue.div(gliquidSupply);
    }

    function setGLIQUIDITY(address _gliquidity) external onlyOwner {
        gliquidity = GLIQUIDITY(_gliquidity);
    }

    function mint(address to, uint256 amount) external onlyGLIQUIDITY {
        _mint(to, amount);
    }

    function burn(address from, uint256 amount) external onlyGLIQUIDITY {
        _burn(from, amount);
    }

    function transfer(address, uint256) public virtual override whenNotPaused returns (bool) {
        revert("Function disabled. Use transferAll instead.");
    }

    function transferFrom(address, address, uint256) public virtual override whenNotPaused returns (bool) {
        revert("Function disabled. Use transferAll instead.");
    }

    function transferAll(address recipient) public whenNotPaused returns (bool) {
        uint256 amount = balanceOf(msg.sender);
        require(amount > 0, "You have no GLIQUID tokens to transfer");
        gliquidity.gclaim(msg.sender);
        gliquidity.handleTransfer(msg.sender, recipient);
        super.transfer(recipient, amount);

        return true;
    }
}
// File: GLIQUIDITY.sol



// SPDX-License-Identifier: MIT 
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//              ▀                                                                        ███    ███                                                         ▀         
// https://t.me/glitchproto
// https://twitter.com/protocolglitch
// https://discord.gg/jyehnJHW9q
// GLITCH Protocol is a decentralized protocol that allows users to swap between any two tokens on the Ethereum blockchain in a trustless manner.
//
pragma solidity ^0.8.0;

import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/token/ERC20/IERC20.sol";
import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/utils/ReentrancyGuard.sol";
import "https://raw.githubusercontent.com/smartcontractkit/chainlink/develop/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/utils/Pausable.sol";
import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/token/ERC20/utils/SafeERC20.sol";

import "./GLIQUID.sol";
import "./FeeManager.sol";

interface IExtendedERC20 is IERC20 {
    function decimals() external view returns (uint8);
}

contract GLIQUIDITY is ReentrancyGuard, Pausable {
    using SafeMath for uint256;
    using SafeERC20 for IERC20;
    
    GLIQUID public gliquidToken;
    FeeManager public feeManager;

    address public devAddress;
    address public owner;
    bool public isBootstrapped = false;

    uint256 public FEE = 25;
    uint256 public OFEE = 35;
    uint256 constant ONE_DAY = 86400;

    uint256 public constant TOLERANCE = 100;

    struct FeeSnapshot {
        uint256 totalFees;
        uint256 totalSupply;
    }

    mapping(address => mapping(address => FeeSnapshot)) public userSnapshots;

    mapping(address => FeeSnapshot) public globalSnapshots;

    mapping(address => mapping(address => uint256)) public feesOwed;

    mapping(address => uint256) public dailyTokenVolumes; 
    uint256 public lastVolumeUpdateTime;

    mapping(address => bool) public isLiquidityProvider;

    uint256 public dailyFeesCollected; 
    uint256 public lastFeesUpdateTime; 

    event TokenSwapped(address indexed trader, address tokenIn, address tokenOut, uint256 amountIn, uint256 amountOut);
    event LiquidityAdded(address indexed provider, uint256 gliquidMinted);
    event LiquidityRemoved(address indexed provider, uint256 gliquidBurned);
    event FeesClaimed(address indexed user, address indexed token, uint256 amount);

    modifier onlyOwner() {
        require(msg.sender == owner, "Not authorized");
        _;
    }

    function pause() external onlyOwner {
        _pause();
    }

    function unpause() external onlyOwner {
        _unpause();
    }

    constructor(address _gliquidToken, address _feeManager, address _devAddress) {
        gliquidToken = GLIQUID(_gliquidToken);
        feeManager = FeeManager(_feeManager);
        devAddress = _devAddress;
        owner = msg.sender;
    }

    function setDevAddress(address _devAddress) external onlyOwner {
        devAddress = _devAddress;
    }

    function updateFees(uint256 fee) internal {
        if (block.timestamp.sub(lastFeesUpdateTime) >= ONE_DAY) {
            dailyFeesCollected = fee;
            lastFeesUpdateTime = block.timestamp;
        } else {
            dailyFeesCollected = dailyFeesCollected.add(fee);
        }
    }

    function updateUserSnapshot(address user, address token) private {
        uint256 totalFees = feeManager.getTotalFees(token);
        uint256 totalSupply = gliquidToken.totalSupply();
        userSnapshots[user][token] = FeeSnapshot(totalFees, totalSupply);
    }

    function updateGlobalSnapshot(address token) private {
        uint256 totalFees = feeManager.getTotalFees(token);
        uint256 totalSupply = gliquidToken.totalSupply();
        globalSnapshots[token] = FeeSnapshot(totalFees, totalSupply);
    }

    function updateAllUserSnapshots(address user) private {
        address[] memory tokens = gliquidToken.getTokenAddresses();

        for (uint256 i = 0; i < tokens.length; i++) {
            updateUserSnapshot(user, tokens[i]);
        }
    }

    function updateAllGlobalSnapshots() private {
        address[] memory tokens = gliquidToken.getTokenAddresses();

        for (uint256 i = 0; i < tokens.length; i++) {
            updateGlobalSnapshot(tokens[i]);
        }
    }

    function calculateAPR() public view returns (uint256) {
        uint256 totalLiquidity = gliquidToken.getTotalValueInPool();

        if (totalLiquidity == 0) {
            return 0;
        }

        uint256 annualizedFees = dailyFeesCollected.mul(365);
        return (annualizedFees.mul(100).mul(1e18)).div(totalLiquidity);
    }

    function _getTokenValueUSD(address token, uint256 amount) internal view returns (uint256) {
        uint256 tokenPrice = gliquidToken.getTokenPriceUSD(token);

        uint256 normalizedAmount = amount;
        if (IExtendedERC20(token).decimals() < 18) {
            normalizedAmount = amount.mul(10 ** (18 - IExtendedERC20(token).decimals()));
        } else if (IExtendedERC20(token).decimals() > 18) {
            normalizedAmount = amount.div(10 ** (IExtendedERC20(token).decimals() - 18));
        }

        return normalizedAmount.mul(tokenPrice).div(10 ** 18);
    }
    
    function getClaimableAmount(address user, address token) public view returns (uint256) {
        FeeSnapshot memory userSnapshot = userSnapshots[user][token];
        FeeSnapshot memory globalSnapshot = globalSnapshots[token];

        uint256 feesOwedUserToken = feesOwed[user][token];

        if (userSnapshot.totalSupply == 0) {
            return feesOwedUserToken;
        }

        uint256 totalTokenFee = globalSnapshot.totalFees > userSnapshot.totalFees ? globalSnapshot.totalFees - userSnapshot.totalFees : 0;

        if (totalTokenFee == 0) {
            return feesOwedUserToken;
        }

        uint256 currentTotalSupply = gliquidToken.totalSupply();
        uint256 userBalance = gliquidToken.balanceOf(user);
        
        if (userBalance == 0) {
            return feesOwedUserToken;
        }

        uint256 userProportion = userBalance.mul(1e18).div(currentTotalSupply); 
       
        uint256 adjustedUserProportion = userProportion; 

        uint256 userShare = (totalTokenFee * adjustedUserProportion) / 1e18;

        return userShare.add(feesOwedUserToken);
    }

    function getAllClaimableAmounts(address user) public view returns (address[] memory, uint256[] memory) {
        address[] memory supportedTokens = gliquidToken.getTokenAddresses(); // This function should return all supported tokens.
        uint256[] memory userShares = new uint256[](supportedTokens.length);

        for (uint256 i = 0; i < supportedTokens.length; i++) {
            address token = supportedTokens[i];
            userShares[i] = getClaimableAmount(user, token);
        }

        return (supportedTokens, userShares);
    }

    function claim() external nonReentrant whenNotPaused {
        require(isLiquidityProvider[msg.sender], "You must be a liquidity provider to claim fees.");

        address[] memory _tokenAddresses = gliquidToken.getTokenAddresses();
        bool hasClaimedAny = false;

        for (uint256 i = 0; i < _tokenAddresses.length; i++) {
            address tokenAddress = _tokenAddresses[i];
            uint256 claimableAmount = getClaimableAmount(msg.sender, tokenAddress);

            if (claimableAmount == 0) continue;

            uint256 contractBalance = IERC20(tokenAddress).balanceOf(address(feeManager));
            require(contractBalance >= claimableAmount, "Not enough tokens in the contract to cover the claim");

            feeManager.withdrawFees(tokenAddress, claimableAmount, msg.sender);

            updateUserSnapshot(msg.sender, tokenAddress);

            feesOwed[msg.sender][tokenAddress] = 0;

            hasClaimedAny = true;

            emit FeesClaimed(msg.sender, tokenAddress, claimableAmount);
        }

        if(hasClaimedAny) {
            updateAllGlobalSnapshots();
        }

        require(hasClaimedAny, "No fees available to claim");
    }

    function liquidclaim(address sender) internal {
        address[] memory _tokenAddresses = gliquidToken.getTokenAddresses();
        bool hasClaimedAny = false;

        for (uint256 i = 0; i < _tokenAddresses.length; i++) {
            address tokenAddress = _tokenAddresses[i];
            uint256 claimableAmount = getClaimableAmount(sender, tokenAddress);

            if (claimableAmount == 0) continue; 

            uint256 contractBalance = IERC20(tokenAddress).balanceOf(address(feeManager));
            require(contractBalance >= claimableAmount, "Not enough tokens in the contract to cover the claim");

            feeManager.withdrawFees(tokenAddress, claimableAmount, sender);

            updateUserSnapshot(sender, tokenAddress);

            feesOwed[sender][tokenAddress] = 0;

            hasClaimedAny = true;

            emit FeesClaimed(sender, tokenAddress, claimableAmount);
        }

        if(hasClaimedAny) {
            updateAllGlobalSnapshots();
        }
    }

    function gclaim(address sender) external nonReentrant whenNotPaused {
        require(msg.sender == address(gliquidToken), "Only GLIQUID token can call this");
        require(isLiquidityProvider[sender], "You must be a liquidity provider to claim fees.");

        address[] memory _tokenAddresses = gliquidToken.getTokenAddresses();
        bool hasClaimedAny = false;

        for (uint256 i = 0; i < _tokenAddresses.length; i++) {
            address tokenAddress = _tokenAddresses[i];
            uint256 claimableAmount = getClaimableAmount(sender, tokenAddress);

            if (claimableAmount == 0) continue;

            uint256 contractBalance = IERC20(tokenAddress).balanceOf(address(this));
            require(contractBalance >= claimableAmount, "Not enough tokens in the contract to cover the claim");

            feeManager.withdrawFees(tokenAddress, claimableAmount, sender);

            updateUserSnapshot(sender, tokenAddress);

            feesOwed[sender][tokenAddress] = 0;

            hasClaimedAny = true;

            emit FeesClaimed(sender, tokenAddress, claimableAmount);
        }

        if(hasClaimedAny) {
            updateAllGlobalSnapshots();
        }

        require(hasClaimedAny, "No fees available to claim"); 
    }

    function handleTransfer(address from, address to) external nonReentrant whenNotPaused {
        require(msg.sender == address(gliquidToken), "Only GLIQUID token can call this");

        isLiquidityProvider[from] = false;

        isLiquidityProvider[to] = true;
    }

    function bootstrapLiquidity(address token, uint256 amount, uint256 gliquidAmount) external onlyOwner {
        require(!isBootstrapped, "Already bootstrapped");

        IERC20(token).safeTransferFrom(msg.sender, address(this), amount);
        gliquidToken.mint(msg.sender, gliquidAmount);

        if (!isLiquidityProvider[msg.sender]) {
            isLiquidityProvider[msg.sender] = true;
        }

        isBootstrapped = true;
        emit LiquidityAdded(msg.sender, gliquidAmount);
    }


    function addLiquidity(address token, uint256 amount) external nonReentrant whenNotPaused {
        require(gliquidToken.isTokenSupported(token), "Token not supported");

        uint256 tokenValueUSD = _getTokenValueUSD(token, amount);
        uint256 gliquidPrice = gliquidToken.getPrice();
        require(gliquidPrice > 0, "GLIQUID price is zero");
        uint256 gliquidMinted = tokenValueUSD.mul(gliquidPrice).div(1e18);

        liquidclaim(msg.sender);

        IERC20(token).safeTransferFrom(msg.sender, address(this), amount);

        gliquidToken.mint(msg.sender, gliquidMinted);

        if (!isLiquidityProvider[msg.sender]) {
            isLiquidityProvider[msg.sender] = true;
        }

        updateAllUserSnapshots(msg.sender);

        updateAllGlobalSnapshots();

        emit LiquidityAdded(msg.sender, gliquidMinted);
    }

    function _distributeRemovalFees(uint256 amountIn, address tokenIn, uint256 feePercentage) internal returns (uint256 amountAfterFees) {
        uint256 feeAmount = amountIn.mul(feePercentage).div(10000);
        uint256 devFee = feeAmount.mul(30).div(100);
        uint256 lpFee = feeAmount.mul(70).div(100);

        uint256 feeInUSD = _getTokenValueUSD(tokenIn, feeAmount);

        IERC20(tokenIn).safeTransfer(devAddress, devFee);
        
        IERC20(tokenIn).safeTransfer(address(feeManager), lpFee);
        feeManager.addFees(tokenIn, lpFee);

        updateFees(feeInUSD);

        return amountIn.sub(feeAmount);
    }

    function _getEquivalentTokenAmountForUSD(address token, uint256 usdAmount) internal view returns (uint256) {
        uint256 tokenDecimals = IExtendedERC20(token).decimals();
        uint256 tokenPriceUSD = gliquidToken.getTokenPriceUSD(token);

        uint256 precision = 10 ** 18;

        uint256 rawTokenAmount = usdAmount.mul(precision).div(tokenPriceUSD);

        if (tokenDecimals < 18) {
            return rawTokenAmount.div(10 ** (18 - tokenDecimals));
        } else if (tokenDecimals > 18) {
            return rawTokenAmount.mul(10 ** (tokenDecimals - 18));
        } else {
            return rawTokenAmount;
        }
    }

    function removeLiquidity(uint256 gliquidAmount, address tokenOut) external nonReentrant whenNotPaused {
        require(gliquidToken.balanceOf(msg.sender) >= gliquidAmount, "Not enough GLIQUID tokens");
        require(gliquidToken.isTokenSupported(tokenOut), "Token not supported");
        require(isLiquidityProvider[msg.sender], "You must be a liquidity provider to remove liquidity");
        
        uint256 gliquidDecimals = gliquidToken.decimals();
        uint256 gliquidValueUSD = gliquidAmount.mul(gliquidToken.getPrice()).div(10 ** gliquidDecimals);

        uint256 tokenOutAmount = _getEquivalentTokenAmountForUSD(tokenOut, gliquidValueUSD);

        uint256 amountAfterFees = _distributeRemovalFees(tokenOutAmount, tokenOut, OFEE);
        
        require(IERC20(tokenOut).balanceOf(address(this)) >= amountAfterFees, "Not enough tokenOut balance in pool");

        liquidclaim(msg.sender);

        updateAllUserSnapshots(msg.sender);

        IERC20(tokenOut).safeTransfer(msg.sender, amountAfterFees);

        gliquidToken.burn(msg.sender, gliquidAmount);
        
        if (gliquidToken.balanceOf(msg.sender) == 0) {
            isLiquidityProvider[msg.sender] = false;
        }

        updateAllGlobalSnapshots();

        emit LiquidityRemoved(msg.sender, gliquidAmount);
    }

    function _distributeSwapFees(uint256 amountIn, address tokenIn) internal returns (uint256 amountAfterFees) {
        (uint256 feeAmount, uint256 devFee, uint256 lpFee) = calculateFees(amountIn);

        uint256 feeInUSD = _getTokenValueUSD(tokenIn, feeAmount);

        IERC20(tokenIn).safeTransferFrom(msg.sender, devAddress, devFee);

        IERC20(tokenIn).safeTransferFrom(msg.sender, address(feeManager), lpFee);
        feeManager.addFees(tokenIn, lpFee);

        updateFees(feeInUSD);

        return amountIn.sub(feeAmount);
    }

    function swap(address tokenIn, address tokenOut, uint256 amountIn, uint256 deadline) external nonReentrant whenNotPaused {
        require(block.timestamp <= deadline, "Transaction expired");
        require(tokenIn != tokenOut, "Input and output tokens can't be the same");
        require(gliquidToken.isTokenSupported(tokenIn) && gliquidToken.isTokenSupported(tokenOut), "Token not supported");

        uint256 amountOut = getAmountOut(amountIn, tokenIn, tokenOut);

        handleSwapTransfers(tokenIn, tokenOut, amountIn, amountOut);

        updateAllGlobalSnapshots();
        
        emit TokenSwapped(msg.sender, tokenIn, tokenOut, amountIn, amountOut);
    }

    function calculateFees(uint256 amountIn) internal view returns (uint256 feeAmount, uint256 devFee, uint256 lpFee) {
        feeAmount = amountIn.mul(FEE).div(10000);
        devFee = feeAmount.mul(30).div(100);
        lpFee = feeAmount.mul(70).div(100);

        return (feeAmount, devFee, lpFee);
    }

    function getAllDailyVolumeUSD() external view returns (uint256) {
        address[] memory supportedTokens = gliquidToken.getTokenAddresses();

        uint256 totalVolumeUSD = 0;

        for (uint256 i = 0; i < supportedTokens.length; i++) {
            totalVolumeUSD += _getTokenValueUSD(supportedTokens[i], dailyTokenVolumes[supportedTokens[i]]);
        }

        return totalVolumeUSD;
    }

    function getDailyTokenVolume(address token) external view returns (uint256) {
        return dailyTokenVolumes[token];
    }

    function updateDailyVolume(address tokenIn, address tokenOut, uint256 amountIn, uint256 amountOut) internal {
        uint256 currentTime = block.timestamp;

        if (currentTime - lastVolumeUpdateTime >= 1 days) {
            resetDailyVolume();
            lastVolumeUpdateTime = currentTime;
        }

        dailyTokenVolumes[tokenIn] += amountIn;

        dailyTokenVolumes[tokenOut] += amountOut;
    }

    function resetDailyVolume() internal {
        address[] memory supportedTokens = gliquidToken.getTokenAddresses();

        for (uint256 i = 0; i < supportedTokens.length; i++) {
            dailyTokenVolumes[supportedTokens[i]] = 0;
        }
    }

    function handleSwapTransfers(address tokenIn, address tokenOut, uint256 amountIn, uint256 amountOut) internal {
        require(IERC20(tokenOut).balanceOf(address(this)) >= amountOut, "Not enough tokenOut in pool");

        updateDailyVolume(tokenIn, tokenOut, amountIn, amountOut);

        uint256 amountAfterFees = _distributeSwapFees(amountIn, tokenIn);

        IERC20(tokenIn).safeTransferFrom(msg.sender, address(this), amountAfterFees);
        
        IERC20(tokenOut).safeTransfer(msg.sender, amountOut);
    }

    function getAmountOut(uint256 amountIn, address tokenIn, address tokenOut) public view returns (uint256) {
        uint256 valueIn = _getTokenValueUSD(tokenIn, amountIn);

        uint256 feeAmount = (valueIn * FEE) / 10000;
        uint256 valueInAfterFee = valueIn.sub(feeAmount);

        uint256 tokenOutPrice = gliquidToken.getTokenPriceUSD(tokenOut);
        require(tokenOutPrice > 0, "Token out price is zero");

        uint256 adjustedValueInAfterFee = valueInAfterFee.mul(10**18);
        uint256 amountOut = adjustedValueInAfterFee.div(tokenOutPrice);

        uint8 tokenOutDecimals = IExtendedERC20(tokenOut).decimals();
        uint256 amountOutNormalized = amountOut;

        if (tokenOutDecimals < 18) {
            amountOutNormalized = amountOut.div(10 ** (18 - tokenOutDecimals));
        } else if (tokenOutDecimals > 18) {
            amountOutNormalized = amountOut.mul(10 ** (tokenOutDecimals - 18));
        }

        uint256 usdValueOut = _getTokenValueUSD(tokenOut, amountOutNormalized);
        uint256 difference = valueIn > usdValueOut ? valueIn - usdValueOut : usdValueOut - valueIn;
        require(difference <= valueIn.mul(TOLERANCE).div(10000), "USD value mismatch between tokens");

        return amountOutNormalized;
    }
}
// File: https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/utils/Pausable.sol



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

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    bool private _paused;

    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    /**
     * @dev The operation failed because the contract is paused.
     */
    error EnforcedPause();

    /**
     * @dev The operation failed because the contract is not paused.
     */
    error ExpectedPause();

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        if (paused()) {
            revert EnforcedPause();
        }
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        if (!paused()) {
            revert ExpectedPause();
        }
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// File: https://raw.githubusercontent.com/smartcontractkit/chainlink/develop/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface AggregatorV3Interface {
  function decimals() external view returns (uint8);

  function description() external view returns (string memory);

  function version() external view returns (uint256);

  function getRoundData(
    uint80 _roundId
  ) external view returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);

  function latestRoundData()
    external
    view
    returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);
}

// File: https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/utils/ReentrancyGuard.sol



// 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;
    }
}

// File: https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/token/ERC20/ERC20.sol



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

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 */
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    mapping(address account => uint256) private _balances;

    mapping(address account => mapping(address spender => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                _totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     * ```
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// File: https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/utils/Context.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (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;
    }
}

// File: https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/interfaces/draft-IERC6093.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

// File: https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/token/ERC20/extensions/IERC20Metadata.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// File: https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/token/ERC20/IERC20.sol



// 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);
}

// File: FeeManager.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/token/ERC20/IERC20.sol";
import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/utils/ReentrancyGuard.sol";
import "https://raw.githubusercontent.com/smartcontractkit/chainlink/develop/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/utils/Pausable.sol";
import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/token/ERC20/utils/SafeERC20.sol";

contract FeeManager {
    using SafeERC20 for IERC20;
    address public admin;
    address public owner;

    mapping(address => uint256) public collectedFees;

    event FeeDistributed(address indexed admin, address token, uint256 amount);
    event FeeWithdrawn(address indexed admin, address indexed user, address token, uint256 amount);

    constructor(address _admin) {
        require(_admin != address(0), "Invalid admin address");
        admin = _admin;
        owner = msg.sender;
    }

    modifier onlyOwner() {
        require(msg.sender == owner, "Not authorized");
        _;
    }

    modifier onlyAdmin() {
        require(msg.sender == admin, "Not authorized");
        _;
    }

    function updateAdmin(address newAdmin) external onlyAdmin {
        require(newAdmin != address(0), "Invalid admin address");
        admin = newAdmin;
    }

    function addFees(address token, uint256 amount) external onlyAdmin {
        // This function can be expanded with business logic as needed
        collectedFees[token] += amount;
        emit FeeDistributed(msg.sender, token, amount);
    }

    function withdrawFees(address token, uint256 amount, address recipient) external onlyAdmin {
        require(collectedFees[token] >= amount, "Not enough fees");
        require(recipient != address(0), "Cannot withdraw to the zero address");

        uint256 contractBalance = IERC20(token).balanceOf(address(this));
        require(contractBalance >= amount, "Insufficient contract balance");

        // Update the collected fees for the token
        collectedFees[token] -= amount;

        // Transfer the tokens to the recipient
        IERC20(token).safeTransfer(recipient, amount);

        emit FeeWithdrawn(msg.sender, recipient, token, amount);
    }

    function getTotalFees(address token) external view returns (uint256) {
        return collectedFees[token];
    }

    function withdrawTokens(address token, uint256 amount, address to) external onlyOwner {
        require(to != address(0), "Cannot withdraw to the zero address");
        uint256 balance = IERC20(token).balanceOf(address(this));
        require(balance >= amount, "Not enough tokens in the contract");

        IERC20(token).safeTransfer(to, amount);
    }
}

// File: https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/token/ERC20/utils/SafeERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev An operation with an ERC20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;
    }
}

// File: https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/utils/Address.sol



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

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert FailedInnerCall();
        }
    }
}

// File: https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/token/ERC20/extensions/IERC20Permit.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}