creation_sourcecode: // SPDX-License-Identifier: MIT
  
  pragma solidity ^0.8.0;
  
  /**
   * @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 amount of tokens in existence.
       */
      function totalSupply() external view returns (uint256);
  
      /**
       * @dev Returns the amount of tokens owned by `account`.
       */
      function balanceOf(address account) external view returns (uint256);
  
      /**
       * @dev Moves `amount` 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 amount) 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 `amount` 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 amount) external returns (bool);
  
      /**
       * @dev Moves `amount` tokens from `from` to `to` using the
       * allowance mechanism. `amount` 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 amount
      ) external returns (bool);
  }
  
  /**
   * @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;
      }
  }
  
  /**
   * @dev Contract module which provides a basic access control mechanism, where
   * there is an account (an owner) that can be granted exclusive access to
   * specific functions.
   *
   * By default, the owner account will be the one that deploys the contract. This
   * can later be changed with {transferOwnership}.
   *
   * This module is used through inheritance. It will make available the modifier
   * `onlyOwner`, which can be applied to your functions to restrict their use to
   * the owner.
   */
  abstract contract Ownable is Context {
      address private _owner;
  
      event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
  
      /**
       * @dev Initializes the contract setting the deployer as the initial owner.
       */
      constructor() {
          _transferOwnership(_msgSender());
      }
  
      /**
       * @dev Throws if called by any account other than the owner.
       */
      modifier onlyOwner() {
          _checkOwner();
          _;
      }
  
      /**
       * @dev Returns the address of the current owner.
       */
      function owner() public view virtual returns (address) {
          return _owner;
      }
  
      /**
       * @dev Throws if the sender is not the owner.
       */
      function _checkOwner() internal view virtual {
          require(owner() == _msgSender(), "Ownable: caller is not the owner");
      }
  
      /**
       * @dev Leaves the contract without owner. It will not be possible to call
       * `onlyOwner` functions anymore. Can only be called by the current owner.
       *
       * NOTE: Renouncing ownership will leave the contract without an owner,
       * thereby removing any functionality that is only available to the owner.
       */
      function renounceOwnership() public virtual onlyOwner {
          _transferOwnership(address(0));
      }
  
      /**
       * @dev Transfers ownership of the contract to a new account (`newOwner`).
       * Can only be called by the current owner.
       */
      function transferOwnership(address newOwner) public virtual onlyOwner {
          require(newOwner != address(0), "Ownable: new owner is the zero address");
          _transferOwnership(newOwner);
      }
  
      /**
       * @dev Transfers ownership of the contract to a new account (`newOwner`).
       * Internal function without access restriction.
       */
      function _transferOwnership(address newOwner) internal virtual {
          address oldOwner = _owner;
          _owner = newOwner;
          emit OwnershipTransferred(oldOwner, newOwner);
      }
  }
  
  library TransferHelper {
      function safeApprove(
          address token,
          address to,
          uint256 value
      ) internal {
          // bytes4(keccak256(bytes('approve(address,uint256)')));
          (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
          require(
              success && (data.length == 0 || abi.decode(data, (bool))),
              'TransferHelper::safeApprove: approve failed'
          );
      }
  
      function safeTransfer(
          address token,
          address to,
          uint256 value
      ) internal {
          // bytes4(keccak256(bytes('transfer(address,uint256)')));
          (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
          require(
              success && (data.length == 0 || abi.decode(data, (bool))),
              'TransferHelper::safeTransfer: transfer failed'
          );
      }
  
      function safeTransferFrom(
          address token,
          address from,
          address to,
          uint256 value
      ) internal {
          // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
          (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
          require(
              success && (data.length == 0 || abi.decode(data, (bool))),
              'TransferHelper::transferFrom: transferFrom failed'
          );
      }
  
      function safeTransferETH(address to, uint256 value) internal {
          (bool success, ) = to.call{value: value}(new bytes(0));
          require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
      }
  }
  
  /**
   * @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;
  
      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
          require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
  
          // 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;
      }
  }
  
  contract RevenueSharingAccura is Ownable, ReentrancyGuard {
  
      struct Detail {
          uint256 amountWETH;
          uint256 amountACC;
      }
  
      bool public isPaused;
      address public WETH;
      address public ACC;
      address[] private listParticipate;
      mapping (address => Detail) public detailParticipate;
  
      event Paused(address account);
      event Unpaused(address account);
      event Unparticipate(address indexed account);
  
      constructor(address _WETH, address _ACC) {
          WETH = _WETH;
          ACC = _ACC;
          TransferHelper.safeApprove(_WETH, address(this), type(uint256).max);
          TransferHelper.safeApprove(_ACC, address(this), type(uint256).max);
      }
  
      modifier mustNotPaused() {
          require(!isPaused, "Unparticipate function is paused");
          _;
      }
  
      modifier mustPaused() {
          require(isPaused, "Unparticipate function is not paused");
          _;
      }
  
      function addParticipates(
          address[] memory _participate, 
          uint256[] memory _amountWETH, 
          uint256[] memory _amountACC
      ) external onlyOwner {
          require(_participate.length == _amountWETH.length, "Array Length do not match");
          require(_participate.length == _amountACC.length, "Array Length do not match");
          require(_participate.length <= 100, "Array Length is too much");
          uint256 amountWETH;
          uint256 amountACC;
  
          for(uint256 i = 0; i < _participate.length; i++) {
              address participate = _participate[i];
              Detail memory detail = detailParticipate[participate];
              require(detail.amountWETH == 0, "This participate is already exist");
              require(detail.amountACC == 0, "This participate is already exist");
              detail.amountWETH = _amountWETH[i];
              detail.amountACC = _amountACC[i];
              detailParticipate[participate] = detail;
              amountWETH += _amountWETH[i];
              amountACC += _amountACC[i];
              listParticipate.push(participate);
          }
  
          //TransferHelper.safeTransferFrom(WETH, msg.sender, address(this), amountWETH);
          //TransferHelper.safeTransferFrom(ACC, msg.sender, address(this), amountACC);
      }
  
      function editParticipate(
          address _participate, 
          uint256 _amountWETH, 
          uint256 _amountACC
      ) external onlyOwner {
          Detail memory detail = detailParticipate[_participate];
          require(detail.amountWETH != 0 && detail.amountACC != 0, "This participate is not exist");
          //if (detail.amountWETH < _amountWETH) TransferHelper.safeTransferFrom(WETH, msg.sender, address(this), _amountWETH - detail.amountWETH);
          //if (detail.amountACC < _amountACC) TransferHelper.safeTransferFrom(ACC, msg.sender, address(this), _amountACC - detail.amountACC);
          detail.amountWETH = _amountWETH;
          detail.amountACC = _amountACC;
          detailParticipate[_participate] = detail;
      }
  
      function viewParticipate(uint256 _page) public view returns (address[] memory) {
          require(_page > 0, "Page input is invalid");
          uint256 startIndex = 100 * (_page - 1);
          uint256 endIndex = (100 * _page) - 1;
          uint256 length;
          require(startIndex < listParticipate.length, "Page is not exist");
          if (endIndex < listParticipate.length) length = 100;
          else length = listParticipate.length;
          address[] memory _listParticipate = new address[](length);
          for (uint256 i = 0; i < length; i++) {
              _listParticipate[i] = listParticipate[startIndex + i];
          }
          return _listParticipate;
      }
  
      function unparticipate() public nonReentrant mustNotPaused {
          Detail memory detail = detailParticipate[msg.sender];
          require(detail.amountWETH != 0 && detail.amountACC != 0, "This participate is not exist or already claim");
          TransferHelper.safeTransferFrom(WETH, address(this), msg.sender, detail.amountWETH);
          TransferHelper.safeTransferFrom(ACC, address(this), msg.sender, detail.amountACC);
          detail.amountWETH = 0;
          detail.amountACC = 0;
          detailParticipate[msg.sender] = detail;
          emit Unparticipate(msg.sender);
      }
  
      function pause() external onlyOwner {
          isPaused = true;
          emit Paused(msg.sender);
      }
  
      function unpause() external onlyOwner {
          isPaused = false;
          emit Unpaused(msg.sender);
      }
  
      function withdraw(uint256 _amountWETH, uint256 _amountACC) external onlyOwner {
          TransferHelper.safeTransferFrom(WETH, address(this), msg.sender, _amountWETH);
          TransferHelper.safeTransferFrom(ACC, address(this), msg.sender, _amountACC);
      }
  }