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// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '@openzeppelin/contracts/access/Ownable.sol';
import './interfaces/IOFT.sol';

// Proxy contract to correctly interac with ProxtOFT
contract ZooDAOProxyEth is Ownable {
	address private _commissionReceiver;
	uint256 private _commissionAmountInNative;
	address public token;
	IOFT private proxyOft;

	event CommissionAmountUpdated(uint256 oldCommissionAmount, uint256 newCommissionAmount);

	event CommissionReceiverUpdated(address oldCommissionReceiver, address newCommissionReceiver);

	event BridgeWithCommission(uint256 amount, uint256 amountWithoutCommission, uint256 commission);

	constructor(
		address token_,
		address proxyOft_,
		address commisionReceiver_,
		uint256 commissionAmountInNative_
	) {
		_commissionReceiver = commisionReceiver_;
		_commissionAmountInNative = commissionAmountInNative_;

		token = token_;
		proxyOft = IOFT(proxyOft_);
	}

	function estimateSendFee(
		uint16 _dstChainId,
		bytes calldata _toAddress,
		uint256 _amount,
		bool _useZro,
		bytes calldata _adapterParams
	) public view returns (uint256 nativeFee, uint256 zroFee) {
		(nativeFee, zroFee) = proxyOft.estimateSendFee(_dstChainId, _toAddress, _amount, _useZro, _adapterParams);
		nativeFee += _commissionAmountInNative;
	}

	function sendFrom(
		address,
		uint16 _dstChainId,
		bytes calldata _toAddress,
		uint256 _amount,
		address payable _refundAddress,
		address _zroPaymentAddress,
		bytes calldata _adapterParams
	) public payable {
		require(IERC20(token).transferFrom(msg.sender, address(this), _amount));
		require(IERC20(token).approve(address(proxyOft), _amount));

		uint256 newValue = deductCommissionInNative();
		proxyOft.sendFrom{value: newValue}(
			address(this),
			_dstChainId,
			_toAddress,
			_amount,
			_refundAddress,
			_zroPaymentAddress,
			_adapterParams
		);
	}

	function deductCommissionInNative() internal returns (uint256 newFeeAmount) {
		(bool success, ) = _commissionReceiver.call{value: _commissionAmountInNative}('');
		require(success, 'Fee is too low. Get fee amount from estimateSendFee()');

		emit BridgeWithCommission(msg.value, msg.value - _commissionAmountInNative, _commissionAmountInNative);

		return msg.value - _commissionAmountInNative;
	}

	function updateCommissionAmount(uint256 commissionAmountInNative_) external onlyOwner {
		uint256 oldCommissionAmountInNative = _commissionAmountInNative;
		_commissionAmountInNative = commissionAmountInNative_;

		emit CommissionAmountUpdated(oldCommissionAmountInNative, _commissionAmountInNative);
	}

	function updateCommissionReceiver(address commisionReceiver_) external onlyOwner {
		address oldCommissionReceiver = _commissionReceiver;
		_commissionReceiver = commisionReceiver_;

		emit CommissionReceiverUpdated(oldCommissionReceiver, _commissionReceiver);
	}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @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);
    }
}

// SPDX-License-Identifier: MIT

interface IOFT {
	function estimateSendFee(
		uint16 _dstChainId,
		bytes calldata _toAddress,
		uint256 _amount,
		bool _useZro,
		bytes calldata _adapterParams
	) external view returns (uint256 nativeFee, uint256 zroFee);

	function sendFrom(
		address _from,
		uint16 _dstChainId,
		bytes calldata _toAddress,
		uint256 _amount,
		address payable _refundAddress,
		address _zroPaymentAddress,
		bytes calldata _adapterParams
	) external payable;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @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;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"token_","type":"address"},{"internalType":"address","name":"proxyOft_","type":"address"},{"internalType":"address","name":"commisionReceiver_","type":"address"},{"internalType":"uint256","name":"commissionAmountInNative_","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountWithoutCommission","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"commission","type":"uint256"}],"name":"BridgeWithCommission","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"oldCommissionAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newCommissionAmount","type":"uint256"}],"name":"CommissionAmountUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldCommissionReceiver","type":"address"},{"indexed":false,"internalType":"address","name":"newCommissionReceiver","type":"address"}],"name":"CommissionReceiverUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"internalType":"bytes","name":"_toAddress","type":"bytes"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bool","name":"_useZro","type":"bool"},{"internalType":"bytes","name":"_adapterParams","type":"bytes"}],"name":"estimateSendFee","outputs":[{"internalType":"uint256","name":"nativeFee","type":"uint256"},{"internalType":"uint256","name":"zroFee","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"internalType":"bytes","name":"_toAddress","type":"bytes"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address payable","name":"_refundAddress","type":"address"},{"internalType":"address","name":"_zroPaymentAddress","type":"address"},{"internalType":"bytes","name":"_adapterParams","type":"bytes"}],"name":"sendFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"commissionAmountInNative_","type":"uint256"}],"name":"updateCommissionAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"commisionReceiver_","type":"address"}],"name":"updateCommissionReceiver","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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00000000000000000000000009f098b155d561fc9f7bccc97038b7e3d20baf740000000000000000000000008bbcce0a963a7ccca5f3b3be1a268e9f97c682ab000000000000000000000000084eaef922d6976f412df50fba8b23b49f07398500000000000000000000000000000000000000000000000000093cafac6a8000

-----Decoded View---------------
Arg [0] : token_ (address): 0x09F098B155D561Fc9F7BcCc97038b7e3d20bAF74
Arg [1] : proxyOft_ (address): 0x8BbCCe0a963a7cCcA5f3B3Be1a268e9f97C682Ab
Arg [2] : commisionReceiver_ (address): 0x084eaEF922d6976F412DF50FBA8b23b49f073985
Arg [3] : commissionAmountInNative_ (uint256): 2600000000000000

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 00000000000000000000000009f098b155d561fc9f7bccc97038b7e3d20baf74
Arg [1] : 0000000000000000000000008bbcce0a963a7ccca5f3b3be1a268e9f97c682ab
Arg [2] : 000000000000000000000000084eaef922d6976f412df50fba8b23b49f073985
Arg [3] : 00000000000000000000000000000000000000000000000000093cafac6a8000