fixes

abi/IPool.json

@@ -334,7 +334,7 @@
   },
   {
     "inputs": [],
-    "name": "receiveMEV",
+    "name": "receiveFees",
     "outputs": [],
     "stateMutability": "payable",
     "type": "function"

abi/IRewardEthToken.json

@@ -324,19 +324,6 @@
     "stateMutability": "view",
     "type": "function"
   },
-  {
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "_poolTips",
-        "type": "address"
-      }
-    ],
-    "name": "setPoolMEV",
-    "outputs": [],
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
   {
     "inputs": [
       {

abi/Pool.json

@@ -649,7 +649,7 @@
   },
   {
     "inputs": [],
-    "name": "receiveMEV",
+    "name": "receiveFees",
     "outputs": [],
     "stateMutability": "payable",
     "type": "function"

abi/RewardEthToken.json

@@ -850,19 +850,6 @@
     "stateMutability": "view",
     "type": "function"
   },
-  {
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "_poolMEV",
-        "type": "address"
-      }
-    ],
-    "name": "setPoolMEV",
-    "outputs": [],
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
   {
     "inputs": [
       {

contracts/interfaces/IFeesEscrow.sol

@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+
+pragma solidity 0.7.5;
+
+/**
+ * @dev Interface of the FeesEscrow contract.
+ */
+interface IFeesEscrow {
+    /**
+    * @dev Event for tracking fees withdrawals to Pool contract.
+    * @param amount - the number of fees.
+    */
+    event FeesTransferred(uint256 amount);
+
+    /**
+    * @dev Function is used to transfer accumulated rewards to .
+    * Can only be executed by the account with admin role.
+    */
+    function transferToPool() external returns (uint256);
+}

contracts/interfaces/IPool.sol

@@ -154,7 +154,10 @@ interface IPool {
     */
     function validatorRegistration() external view returns (IDepositContract);
 
-    function receiveMEV() external payable;
+    /**
+    * @dev Function for receiving native tokens without minting sETH.
+    */
+    function receiveFees() external payable;
 
     /**
     * @dev Function for staking ether to the pool to the different tokens' recipient.

contracts/interfaces/IRewardEthToken.sol

@@ -76,12 +76,6 @@ interface IRewardEthToken is IERC20Upgradeable {
     */
     function setProtocolFeeRecipient(address recipient) external;
 
-    /**
-    * @dev Function for changing the poolMEV's address.
-    * @param _poolTips - new protocol fee recipient's address.
-    */
-    function setPoolMEV(address _poolTips) external;
-
     /**
     * @dev Function for getting protocol fee. The percentage fee users pay from their reward for using the pool service.
     */

contracts/pool/PoolMEV.sol → contracts/pool/FeesEscrow.sol

@@ -5,9 +5,9 @@ pragma solidity 0.7.5;
 import "@openzeppelin/contracts/access/Ownable.sol";
 import "@openzeppelin/contracts/utils/Context.sol";
 import "../interfaces/IPool.sol";
-import "../interfaces/IPoolMEV.sol";
+import "../interfaces/IFeesEscrow.sol";
 
-contract PoolMEV is IPoolMEV, Ownable {
+contract FeesEscrow is IFeesEscrow, Ownable {
     address public pool;
 
     constructor(address _pool) Ownable() {
@@ -19,17 +19,15 @@ contract PoolMEV is IPoolMEV, Ownable {
         _;
     }
 
-    function setPool(address _pool) onlyOwner external override {
-        pool = _pool;
-    }
-
-    function transferToPool() public override {
+    function transferToPool() public override returns (uint256) {
         uint256 balance = address(this).balance;
-        require(balance > 0, "PoolMEV: zero balance");
+        require(balance > 0, "FeesEscrow: zero balance");
+
+        IPool(pool).receiveFees{value: balance}();
 
-        IPool(pool).receiveMEV{value: balance}();
+        emit FeesTransferred(balance);
 
-        emit MEVTransferred(pool, balance);
+        return balance;
     }
 
     receive() external payable {}

contracts/pool/Pool.sol

@@ -111,9 +111,9 @@ contract Pool is IPool, OwnablePausableUpgradeable {
     }
 
     /**
-     * @dev See {IPool-stakeOnBehalf}.
+     * @dev See {IPool-receiveFees}.
      */
-    function receiveMEV() public payable override {}
+    function receiveFees() public payable override {}
 
     /**
     * @dev Function for staking ETH using transfer.

contracts/tokens/RewardEthToken.sol

@@ -9,7 +9,7 @@ import "../interfaces/IStakedEthToken.sol";
 import "../interfaces/IRewardEthToken.sol";
 import "../interfaces/IMerkleDistributor.sol";
 import "../interfaces/IOracles.sol";
-import "../interfaces/IPoolMEV.sol";
+import "../interfaces/IFeesEscrow.sol";
 import "./ERC20PermitUpgradeable.sol";
 
 /**
@@ -28,8 +28,8 @@ contract RewardEthToken is IRewardEthToken, OwnablePausableUpgradeable, ERC20Per
     // @dev Address of the Oracles contract.
     address private oracles;
 
-    // @dev Address of the PoolMEV contract.
-    address private poolMEV;
+    // @dev Address of the FeesEscrow contract.
+    address private feesEscrow;
 
     // @dev Maps account address to its reward checkpoint.
     mapping(address => Checkpoint) public override checkpoints;
@@ -92,13 +92,6 @@ contract RewardEthToken is IRewardEthToken, OwnablePausableUpgradeable, ERC20Per
         emit ProtocolFeeRecipientUpdated(recipient);
     }
 
-    /**
-     * @dev See {IRewardEthToken-setPoolMEV}.
-     */
-    function setPoolMEV(address _poolMEV) external onlyAdmin override {
-        poolMEV = _poolMEV;
-    }
-
     /**
      * @dev See {IRewardEthToken-setProtocolFee}.
      */
@@ -224,8 +217,8 @@ contract RewardEthToken is IRewardEthToken, OwnablePausableUpgradeable, ERC20Per
     function updateTotalRewards(uint256 newTotalRewards) external override {
         require(msg.sender == oracles, "RewardEthToken: access denied");
 
-        uint256 periodRewards = newTotalRewards.sub(totalRewards).add(poolMEV.balance);
-        IPoolMEV(poolMEV).transferToPool();
+        uint256 feesAmount = IFeesEscrow(feesEscrow).transferToPool();
+        uint256 periodRewards = newTotalRewards.sub(totalRewards).add(feesAmount);
 
         if (periodRewards == 0) {
             lastUpdateBlockNumber = block.number;