feat: sugar factory registry

brownie-config.yaml

@@ -7,3 +7,5 @@ networks:
       mnemonic: brownie
       fork: https://optimism-mainnet.wallet.coinbase.com
       evm_version: shanghai
+dependencies:
+    - openzeppelin/[email protected] 

contracts/helpers/FactoryRegistry.sol

@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: BUSL-1.1
+pragma solidity >=0.8.19 <0.9.0;
+
+import {Ownable} from "openzeppelin/[email protected]/contracts/access/Ownable.sol";
+import {EnumerableSet} from "openzeppelin/[email protected]/contracts/utils/structs/EnumerableSet.sol";
+
+/// @title Sugar Factory Registry
+/// @author @velodrome.finance
+/// @notice Sugar Factory Registry to keep track of leaf pool factories
+contract FactoryRegistry is Ownable {
+    using EnumerableSet for EnumerableSet.AddressSet;
+
+    /// @dev Array of poolFactories
+    EnumerableSet.AddressSet private _poolFactories;
+
+    constructor() Ownable(msg.sender) {}
+
+    function approve(address poolFactory) external onlyOwner {
+        require(!_poolFactories.contains(poolFactory), "AE");
+        _poolFactories.add(poolFactory);
+    }
+
+    function unapprove(address poolFactory) external onlyOwner {
+        require(_poolFactories.contains(poolFactory), "NE");
+        _poolFactories.remove(poolFactory);
+    }
+
+    function factoriesToPoolFactory(address poolFactory) external pure returns (address, address) {
+        return (address(0), poolFactory);
+    }
+
+    function poolFactories() external view returns (address[] memory) {
+        return _poolFactories.values();
+    }
+}

scripts/deployFactoryRegistry.s.sol

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: BUSL-1.1
+pragma solidity >=0.8.19 <0.9.0;
+
+import "forge-std/Script.sol";
+import "contracts/helpers/FactoryRegistry.sol";
+
+contract DeployFactoryRegistry is Script {
+
+    uint256 public deployPrivateKey = vm.envUint("PRIVATE_KEY_DEPLOY");
+    address public deployerAddress = vm.addr(deployPrivateKey);
+
+    function run() public {
+
+        vm.startBroadcast(deployerAddress);
+
+        FactoryRegistry factoryRegistry = new FactoryRegistry();
+
+        vm.stopBroadcast();
+        console.log("FactoryRegistry deployed at: ", address(factoryRegistry));
+
+    }
+}