perf: smart Contract Performance Improvement ⚡

contracts/DataTypes.sol

@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.9;
+
+library DataTypes {
+    struct Deposit {
+        /// @dev Remaining tokens available.
+        uint256 remaining;
+        /// @dev Premium paid in ETH for priority.
+        uint256 premium;
+        /// @dev The PIX account for the seller receive transactions.
+        string pixTarget;
+        address seller;
+        /// @dev ERC20 stable token address.
+        address token;
+        /// @dev Could be invalidated by the seller.
+        bool valid;
+    }
+
+    struct Lock {
+        uint256 depositID;
+        /// @dev Amount to be paid for relayer.
+        uint256 relayerPremium; 
+        /// @dev Amount to be tranfered via PIX.
+        uint256 amount;  
+        /// @dev If not paid at this block will be expired.
+        uint256 expirationBlock; 
+        /// @dev Where goes the tokens when validated.
+        address targetAddress;
+        /// @dev Relayer address that facilitated this transaction.
+        address relayerAddress;
+    }
+}