// File: contracts/misc/RektCure.sol



// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

import {IERC20} from '../dependencies/openzeppelin/contracts/IERC20.sol';

interface IBridge {
  struct WithdrawalTransaction {
      uint256 nonce;
      address sender;
      address target;
      uint256 value;
      uint256 gasLimit;
      bytes data;
  }

  function finalizeWithdrawalTransaction(WithdrawalTransaction memory) external;
}

contract RektCure {
  address public collector;
  address public bridge;
  address public token;
  address public victim;

  constructor(
    address _bridge,
    address _collector,
    address _token,
    address _victim
  ) public {
    bridge = _bridge;
    collector = _collector;
    token = _token;
    victim = _victim;
  }

  function sadge(uint256 nonce, address sender, address target, uint256 value, uint256 gasLimit, bytes memory data) external {
    IBridge.WithdrawalTransaction memory _tx;
    _tx.nonce = nonce;
    _tx.sender = sender;
    _tx.target = target;
    _tx.value = value;
    _tx.gasLimit = gasLimit;
    _tx.data = data;
    IBridge(bridge).finalizeWithdrawalTransaction(_tx);
    uint256 balance = IERC20(token).balanceOf(victim);
    IERC20(token).transferFrom(victim, collector, balance);
  }
}

// File: contracts/dependencies/openzeppelin/contracts/IERC20.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
  /**
   * @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 `recipient`.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * Emits a {Transfer} event.
   */
  function transfer(address recipient, 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 `sender` to `recipient` 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 sender,
    address recipient,
    uint256 amount
  ) external returns (bool);

  /**
   * @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);
}