feat: add minDepositAmount to TeleportrDeposit.sol

packages/contracts/contracts/L1/teleportr/TeleportrDeposit.sol

@@ -9,11 +9,13 @@ pragma solidity >=0.8.9;
  */
 contract TeleportrDeposit {
     address public owner;
+    uint256 public minDepositAmount;
     uint256 public maxDepositAmount;
     uint256 public maxBalance;
 
     // Events
     event OwnerSet(address indexed oldOwner, address indexed newOwner);
+    event MinDepositAmountSet(uint256 previousAmount, uint256 newAmount);
     event MaxDepositAmountSet(uint256 previousAmount, uint256 newAmount);
     event MaxBalanceSet(uint256 previousBalance, uint256 newBalance);
     event BalanceWithdrawn(address indexed owner, uint256 balance);
@@ -25,19 +27,26 @@ contract TeleportrDeposit {
         _;
     }
 
-    constructor(uint256 _maxDepositAmount, uint256 _maxBalance) {
+    constructor(
+        uint256 _minDepositAmount,
+        uint256 _maxDepositAmount,
+        uint256 _maxBalance
+    ) {
         owner = msg.sender;
+        minDepositAmount = _minDepositAmount;
         maxDepositAmount = _maxDepositAmount;
         maxBalance = _maxBalance;
         emit OwnerSet(address(0), msg.sender);
+        emit MinDepositAmountSet(0, _minDepositAmount);
         emit MaxDepositAmountSet(0, _maxDepositAmount);
         emit MaxBalanceSet(0, _maxBalance);
     }
 
-    // Receive function which reverts if the amount is greater than
-    // maxDepositAmount, or the amount would put the contract over its
-    // maxBalance.
+    // Receive function which reverts if the amount is outside the range
+    // [minDepositAmount, maxDepositAmount], or the amount would put the
+    // contract over its maxBalance.
     receive() external payable {
+        require(msg.value >= minDepositAmount, "Deposit amount is too small");
         require(msg.value <= maxDepositAmount, "Deposit amount is too big");
         require(address(this).balance <= maxBalance, "Contract max balance exceeded");
 
@@ -52,6 +61,11 @@ contract TeleportrDeposit {
     }
 
     // Setters
+    function setMinAmount(uint256 _minDepositAmount) external isOwner {
+        emit MinDepositAmountSet(minDepositAmount, _minDepositAmount);
+        minDepositAmount = _minDepositAmount;
+    }
+
     function setMaxAmount(uint256 _maxDepositAmount) external isOwner {
         emit MaxDepositAmountSet(maxDepositAmount, _maxDepositAmount);
         maxDepositAmount = _maxDepositAmount;