update for config layout

Author: PatrickAlphaC

script/HelperConfig.s.sol

@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.24;
+
+import { Script } from "forge-std/Script.sol";
+
+contract HelperConfig is Script {
+    /*//////////////////////////////////////////////////////////////
+                                 ERRORS
+    //////////////////////////////////////////////////////////////*/
+    error HelperConfig__InvalidChainId();
+
+    /*//////////////////////////////////////////////////////////////
+                                 TYPES
+    //////////////////////////////////////////////////////////////*/
+    struct NetworkConfig {
+        address someVar;
+    }
+
+    /*//////////////////////////////////////////////////////////////
+                            STATE VARIABLES
+    //////////////////////////////////////////////////////////////*/
+    uint256 constant ETH_MAINNET_CHAIN_ID = 1;
+    uint256 constant ETH_SEPOLIA_CHAIN_ID = 11_155_111;
+
+    uint256 constant ZKSYNC_MAINNET_CHAIN_ID = 324;
+    uint256 constant ZKSYNC_SEPOLIA_CHAIN_ID = 300;
+
+    uint256 constant POLYGON_MAINNET_CHAIN_ID = 137;
+    uint256 constant POLYGON_MUMBAI_CHAIN_ID = 80_001;
+
+    // Local network state variables
+    NetworkConfig public localNetworkConfig;
+    mapping(uint256 chainId => NetworkConfig) public networkConfigs;
+
+    /*//////////////////////////////////////////////////////////////
+                               FUNCTIONS
+    //////////////////////////////////////////////////////////////*/
+    constructor() {
+        networkConfigs[ETH_MAINNET_CHAIN_ID] = getEthMainnetConfig();
+        networkConfigs[ETH_SEPOLIA_CHAIN_ID] = getZkSyncSepoliaConfig();
+        networkConfigs[ZKSYNC_MAINNET_CHAIN_ID] = getZkSyncConfig();
+        networkConfigs[ZKSYNC_SEPOLIA_CHAIN_ID] = getZkSyncSepoliaConfig();
+        networkConfigs[POLYGON_MAINNET_CHAIN_ID] = getPolygonMainnetConfig();
+        networkConfigs[POLYGON_MUMBAI_CHAIN_ID] = getPolygonMumbaiConfig();
+    }
+
+    function getConfigByChainId(uint256 chainId) public returns (NetworkConfig memory) {
+        if (networkConfigs[chainId].someVar != address(0)) {
+            return networkConfigs[chainId];
+        } else {
+            return getOrCreateAnvilEthConfig();
+        }
+    }
+
+    function getActiveNetworkConfig() public returns (NetworkConfig memory) {
+        return getConfigByChainId(block.chainid);
+    }
+
+    /*//////////////////////////////////////////////////////////////
+                                CONFIGS
+    //////////////////////////////////////////////////////////////*/
+    function getEthMainnetConfig() public pure returns (NetworkConfig memory) {
+        return NetworkConfig({ someVar: address(1) });
+    }
+
+    function getZkSyncConfig() public pure returns (NetworkConfig memory) {
+        return NetworkConfig({ someVar: address(1) });
+    }
+
+    function getZkSyncSepoliaConfig() public pure returns (NetworkConfig memory) {
+        return NetworkConfig({ someVar: address(1) });
+    }
+
+    function getPolygonMainnetConfig() public pure returns (NetworkConfig memory) {
+        return NetworkConfig({ someVar: address(1) });
+    }
+
+    function getPolygonMumbaiConfig() public pure returns (NetworkConfig memory) {
+        return NetworkConfig({ someVar: address(1) });
+    }
+
+    /*//////////////////////////////////////////////////////////////
+                              LOCAL CONFIG
+    //////////////////////////////////////////////////////////////*/
+    function getOrCreateAnvilEthConfig() public returns (NetworkConfig memory) {
+        if (localNetworkConfig.someVar != address(0)) {
+            return localNetworkConfig;
+        }
+
+        _deployMocks();
+
+        localNetworkConfig = NetworkConfig({ someVar: address(1) });
+        return localNetworkConfig;
+    }
+
+    /*
+     * Add your mocks, deploy and return them here for your local anvil network
+     */
+    function _deployMocks() internal { }
+}