creation_sourcecode: // SPDX-License-Identifier: MIT
  pragma solidity ^0.8.0;
  
  library SafeMath {
      function tryAdd(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              uint256 c = a + b;
              if (c < a) return (false, 0);
              return (true, c);
          }
      }
  
      function trySub(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              if (b > a) return (false, 0);
              return (true, a - b);
          }
      }
  
      function tryMul(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              if (a == 0) return (true, 0);
              uint256 c = a * b;
              if (c / a != b) return (false, 0);
              return (true, c);
          }
      }
  
      function tryDiv(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              if (b == 0) return (false, 0);
              return (true, a / b);
          }
      }
  
      function tryMod(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              if (b == 0) return (false, 0);
              return (true, a % b);
          }
      }
  
      function add(uint256 a, uint256 b) internal pure returns (uint256) {
          return a + b;
      }
  
      function sub(uint256 a, uint256 b) internal pure returns (uint256) {
          return a - b;
      }
  
      function mul(uint256 a, uint256 b) internal pure returns (uint256) {
          return a * b;
      }
  
      function div(uint256 a, uint256 b) internal pure returns (uint256) {
          return a / b;
      }
  
      function mod(uint256 a, uint256 b) internal pure returns (uint256) {
          return a % b;
      }
  
      function sub(
          uint256 a,
          uint256 b,
          string memory errorMessage
      ) internal pure returns (uint256) {
          unchecked {
              require(b <= a, errorMessage);
              return a - b;
          }
      }
  
      function div(
          uint256 a,
          uint256 b,
          string memory errorMessage
      ) internal pure returns (uint256) {
          unchecked {
              require(b > 0, errorMessage);
              return a / b;
          }
      }
  
      function mod(
          uint256 a,
          uint256 b,
          string memory errorMessage
      ) internal pure returns (uint256) {
          unchecked {
              require(b > 0, errorMessage);
              return a % b;
          }
      }
  }
  
  pragma solidity ^0.8.0;
  
  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
      );
  }
  
  pragma solidity ^0.8.0;
  
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  
      function _msgData() internal view virtual returns (bytes calldata) {
          return msg.data;
      }
  }
  
  pragma solidity ^0.8.0;
  
  abstract contract Ownable is Context {
      address private _owner;
  
      event OwnershipTransferred(
          address indexed previousOwner,
          address indexed newOwner
      );
  
      constructor() {
          _transferOwnership(_msgSender());
      }
  
      function owner() public view virtual returns (address) {
          return _owner;
      }
  
      modifier onlyOwner() {
          require(owner() == _msgSender(), "Ownable: caller is not the owner");
          _;
      }
  
      function renounceOwnership() public virtual onlyOwner {
          _transferOwnership(address(0));
      }
  
      function transferOwnership(address newOwner) public virtual onlyOwner {
          require(
              newOwner != address(0),
              "Ownable: new owner is the zero address"
          );
          _transferOwnership(newOwner);
      }
  
      function _transferOwnership(address newOwner) internal virtual {
          address oldOwner = _owner;
          _owner = newOwner;
          emit OwnershipTransferred(oldOwner, newOwner);
      }
  }
  
  pragma solidity ^0.8.0;
  
  contract OwnerWithdrawable is Ownable {
      using SafeMath for uint256;
      using SafeERC20 for IERC20;
  
      receive() external payable {}
  
      fallback() external payable {}
  
      function withdraw(address token, uint256 amt) public onlyOwner {
          IERC20(token).safeTransfer(msg.sender, amt);
      }
  
      function withdrawAll(address token) public onlyOwner {
          uint256 amt = IERC20(token).balanceOf(address(this));
          withdraw(token, amt);
      }
  
      function withdrawCurrency(uint256 amt) public onlyOwner {
          payable(msg.sender).transfer(amt);
      }
  
      // function deposit(address token, uint256 amt) public onlyOwner {
      //     uint256 allowance = IERC20(token).allowance(msg.sender, address(this));
      //     require(allowance >= amt, "Check the token allowance");
      //     IERC20(token).transferFrom(owner(), address(this), amt);
      // }
  }
  
  pragma solidity ^0.8.0;
  
  library Address {
      function isContract(address account) internal view returns (bool) {
          uint256 size;
          assembly {
              size := extcodesize(account)
          }
          return size > 0;
      }
  
      function sendValue(address payable recipient, uint256 amount) internal {
          require(
              address(this).balance >= amount,
              "Address: insufficient balance"
          );
  
          (bool success, ) = recipient.call{value: amount}("");
          require(
              success,
              "Address: unable to send value, recipient may have reverted"
          );
      }
  
      function functionCall(
          address target,
          bytes memory data
      ) internal returns (bytes memory) {
          return functionCall(target, data, "Address: low-level call failed");
      }
  
      function functionCall(
          address target,
          bytes memory data,
          string memory errorMessage
      ) internal returns (bytes memory) {
          return functionCallWithValue(target, data, 0, errorMessage);
      }
  
      function functionCallWithValue(
          address target,
          bytes memory data,
          uint256 value
      ) internal returns (bytes memory) {
          return
              functionCallWithValue(
                  target,
                  data,
                  value,
                  "Address: low-level call with value failed"
              );
      }
  
      function functionCallWithValue(
          address target,
          bytes memory data,
          uint256 value,
          string memory errorMessage
      ) internal returns (bytes memory) {
          require(
              address(this).balance >= value,
              "Address: insufficient balance for call"
          );
          require(isContract(target), "Address: call to non-contract");
  
          (bool success, bytes memory returndata) = target.call{value: value}(
              data
          );
          return verifyCallResult(success, returndata, errorMessage);
      }
  
      function functionStaticCall(
          address target,
          bytes memory data
      ) internal view returns (bytes memory) {
          return
              functionStaticCall(
                  target,
                  data,
                  "Address: low-level static call failed"
              );
      }
  
      function functionStaticCall(
          address target,
          bytes memory data,
          string memory errorMessage
      ) internal view returns (bytes memory) {
          require(isContract(target), "Address: static call to non-contract");
  
          (bool success, bytes memory returndata) = target.staticcall(data);
          return verifyCallResult(success, returndata, errorMessage);
      }
  
      function functionDelegateCall(
          address target,
          bytes memory data
      ) internal returns (bytes memory) {
          return
              functionDelegateCall(
                  target,
                  data,
                  "Address: low-level delegate call failed"
              );
      }
  
      function functionDelegateCall(
          address target,
          bytes memory data,
          string memory errorMessage
      ) internal returns (bytes memory) {
          require(isContract(target), "Address: delegate call to non-contract");
  
          (bool success, bytes memory returndata) = target.delegatecall(data);
          return verifyCallResult(success, returndata, errorMessage);
      }
  
      function verifyCallResult(
          bool success,
          bytes memory returndata,
          string memory errorMessage
      ) internal pure returns (bytes memory) {
          if (success) {
              return returndata;
          } else {
              if (returndata.length > 0) {
                  assembly {
                      let returndata_size := mload(returndata)
                      revert(add(32, returndata), returndata_size)
                  }
              } else {
                  revert(errorMessage);
              }
          }
      }
  }
  
  pragma solidity ^0.8.0;
  
  library SafeERC20 {
      using Address for address;
  
      function safeTransfer(IERC20 token, address to, uint256 value) internal {
          _callOptionalReturn(
              token,
              abi.encodeWithSelector(token.transfer.selector, to, value)
          );
      }
  
      function safeTransferFrom(
          IERC20 token,
          address from,
          address to,
          uint256 value
      ) internal {
          _callOptionalReturn(
              token,
              abi.encodeWithSelector(token.transferFrom.selector, from, to, value)
          );
      }
  
      function safeApprove(
          IERC20 token,
          address spender,
          uint256 value
      ) internal {
          require(
              (value == 0) || (token.allowance(address(this), spender) == 0),
              "SafeERC20: approve from non-zero to non-zero allowance"
          );
          _callOptionalReturn(
              token,
              abi.encodeWithSelector(token.approve.selector, spender, value)
          );
      }
  
      function safeIncreaseAllowance(
          IERC20 token,
          address spender,
          uint256 value
      ) internal {
          uint256 newAllowance = token.allowance(address(this), spender) + value;
          _callOptionalReturn(
              token,
              abi.encodeWithSelector(
                  token.approve.selector,
                  spender,
                  newAllowance
              )
          );
      }
  
      function safeDecreaseAllowance(
          IERC20 token,
          address spender,
          uint256 value
      ) internal {
          unchecked {
              uint256 oldAllowance = token.allowance(address(this), spender);
              require(
                  oldAllowance >= value,
                  "SafeERC20: decreased allowance below zero"
              );
              uint256 newAllowance = oldAllowance - value;
              _callOptionalReturn(
                  token,
                  abi.encodeWithSelector(
                      token.approve.selector,
                      spender,
                      newAllowance
                  )
              );
          }
      }
  
      function _callOptionalReturn(IERC20 token, bytes memory data) private {
          bytes memory returndata = address(token).functionCall(
              data,
              "SafeERC20: low-level call failed"
          );
          if (returndata.length > 0) {
              require(
                  abi.decode(returndata, (bool)),
                  "SafeERC20: ERC20 operation did not succeed"
              );
          }
      }
  }
  
  pragma solidity ^0.8.0;
  
  interface IERC20Metadata is IERC20 {
      function name() external view returns (string memory);
  
      function symbol() external view returns (string memory);
  
      function decimals() external view returns (uint8);
  }
  
  pragma solidity ^0.8.0;
  
  contract LopeCoinSale is OwnerWithdrawable {
      using SafeMath for uint256;
      using SafeERC20 for IERC20;
      using SafeERC20 for IERC20Metadata;
  
      address private teamAddress;
  
      uint256 public rate;
  
      address public saleToken;
  
      uint public saleTokenDec;
  
      uint256 public totalTokensforSale;
  
      mapping(address => bool) public payableTokens;
  
      mapping(address => uint256) public tokenPrices;
  
      bool public saleStatus;
  
      address[] public buyers;
      mapping(address => BuyerDetails) public buyersDetails;
  
      uint256 public totalBuyers;
      uint256 public totalTokensSold;
  
      struct BuyerDetails {
          uint amount;
          bool exists;
      }
  
      struct BuyerAmount {
          uint amount;
          address buyer;
      }
  
      constructor(address _teamAddress) {
          saleStatus = false;
          teamAddress = _teamAddress;
      }
  
      modifier saleEnabled() {
          require(saleStatus == true, "Presale: is not enabled");
          _;
      }
  
      modifier saleStoped() {
          require(saleStatus == false, "Presale: is not stopped");
          _;
      }
  
      function setSaleToken(
          uint256 _decimals,
          uint256 _totalTokensforSale,
          uint256 _rate,
          bool _saleStatus
      ) external onlyOwner {
          require(_rate != 0);
          rate = _rate;
          saleStatus = _saleStatus;
          saleTokenDec = _decimals;
          totalTokensforSale = _totalTokensforSale;
      }
  
      function stopSale() external onlyOwner saleEnabled {
          saleStatus = false;
      }
  
      function resumeSale() external onlyOwner saleStoped {
          saleStatus = true;
      }
  
      function addPayableTokens(
          address[] memory _tokens,
          uint256[] memory _prices
      ) external onlyOwner {
          require(
              _tokens.length == _prices.length,
              "Presale: tokens & prices arrays length mismatch"
          );
  
          for (uint256 i = 0; i < _tokens.length; i++) {
              require(_prices[i] != 0);
              payableTokens[_tokens[i]] = true;
              tokenPrices[_tokens[i]] = _prices[i];
          }
      }
  
      function payableTokenStatus(
          address _token,
          bool _status
      ) external onlyOwner {
          require(payableTokens[_token] != _status);
  
          payableTokens[_token] = _status;
      }
  
      function updateTokenRate(
          address[] memory _tokens,
          uint256[] memory _prices,
          uint256 _rate
      ) external onlyOwner {
          require(
              _tokens.length == _prices.length,
              "Presale: tokens & prices arrays length mismatch"
          );
  
          if (_rate != 0) {
              rate = _rate;
          }
  
          for (uint256 i = 0; i < _tokens.length; i += 1) {
              require(payableTokens[_tokens[i]] == true);
              require(_prices[i] != 0);
              tokenPrices[_tokens[i]] = _prices[i];
          }
      }
  
      function getTokenAmount(
          address token,
          uint256 amount
      ) public view returns (uint256) {
          uint256 amtOut;
          if (token != address(0)) {
              require(payableTokens[token] == true, "Presale: Token not allowed");
              uint256 price = tokenPrices[token];
              amtOut = amount.mul(10 ** saleTokenDec).div(price);
          } else {
              amtOut = amount.mul(10 ** saleTokenDec).div(rate);
          }
          return amtOut;
      }
  
      function transferETH() private {
          uint256 teamAmount = msg.value.mul(25).div(100);
  
          payable(teamAddress).transfer(teamAmount);
          payable(owner()).transfer(msg.value.sub(teamAmount));
      }
  
      function transferToken(address _token, uint256 _amount) private {
          uint256 teamAmount = _amount.mul(25).div(100);
  
          IERC20(_token).safeTransferFrom(msg.sender, teamAddress, teamAmount);
          IERC20(_token).safeTransferFrom(
              msg.sender,
              owner(),
              _amount.sub(teamAmount)
          );
      }
  
      function buyLopeCoin(
          address _token,
          uint256 _amount
      ) external payable saleEnabled {
          uint256 saleTokenAmt = _token != address(0)
              ? getTokenAmount(_token, _amount)
              : getTokenAmount(address(0), msg.value);
  
          require(saleTokenAmt != 0, "Presale: Amount is 0");
          require(
              (totalTokensSold + saleTokenAmt) < totalTokensforSale,
              "Presale: Not enough tokens to be sale"
          );
  
          if (_token != address(0)) {
              transferToken(_token, _amount);
          } else {
              transferETH();
          }
  
          totalTokensSold += saleTokenAmt;
  
          if (!buyersDetails[msg.sender].exists) {
              buyers.push(msg.sender);
              buyersDetails[msg.sender].exists = true;
              totalBuyers += 1;
          }
  
          buyersDetails[msg.sender].amount += saleTokenAmt;
      }
  
      function buyersAmountList(
          uint _from,
          uint _to
      ) external view returns (BuyerAmount[] memory) {
          require(_from < _to, "Presale: _from should be less than _to");
  
          uint to = _to > totalBuyers ? totalBuyers : _to;
          uint from = _from > totalBuyers ? totalBuyers : _from;
  
          BuyerAmount[] memory buyersAmt = new BuyerAmount[](to - from);
  
          for (uint i = from; i < to; i += 1) {
              buyersAmt[i].amount = buyersDetails[buyers[i]].amount;
              buyersAmt[i].buyer = buyers[i];
          }
  
          return buyersAmt;
      }
  }