updated scripts to write and read from single json for one token

script/BaseData.s.sol

@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.24;
+
+import {Script} from "forge-std/Script.sol";
+
+contract BaseData is Script {
+    struct Addresses {
+        address OFT_DELEGATE;
+        address TOKEN_ADMIN;
+        address PROXY_ADMIN;
+        address LZ_ENDPOINT;
+    }
+
+    struct ChainIds {
+        uint256 mainnet;
+        uint256 base;
+        uint256 optimism;
+        uint256 arbitrum;
+        uint256 fraxtal;
+        uint256 holesky;
+        uint256 fraxtalTestnet;
+    }
+
+    mapping(bool => Addresses) private __addresses; // isTestnet => Actors
+
+    mapping(uint256 => uint32) private __chainIdToLzEID;
+
+    ChainIds private __chainIds = ChainIds({
+        mainnet: 1,
+        base: 8453,
+        optimism: 10,
+        arbitrum: 42161,
+        fraxtal: 252,
+        holesky: 17000,
+        fraxtalTestnet: 2522
+    });
+
+    function setUp() public virtual {
+        // mainnets
+        __addresses[true] = Addresses({
+            OFT_DELEGATE: 0xfcad670592a3b24869C0b51a6c6FDED4F95D6975, // yn security council
+            TOKEN_ADMIN: 0xfcad670592a3b24869C0b51a6c6FDED4F95D6975,
+            PROXY_ADMIN: 0xfcad670592a3b24869C0b51a6c6FDED4F95D6975,
+            LZ_ENDPOINT: 0x1a44076050125825900e736c501f859c50fE728c
+        });
+
+        // testnets
+        __addresses[false] = Addresses({
+            OFT_DELEGATE: 0x743b91CDB1C694D4F51bCDA3a4A59DcC0d02b913, // yn security council
+            TOKEN_ADMIN: 0x743b91CDB1C694D4F51bCDA3a4A59DcC0d02b913,
+            PROXY_ADMIN: 0x743b91CDB1C694D4F51bCDA3a4A59DcC0d02b913,
+            LZ_ENDPOINT: 0x6EDCE65403992e310A62460808c4b910D972f10f
+        });
+
+        // mainnets
+        __chainIdToLzEID[__chainIds.mainnet] = 30101;
+        __chainIdToLzEID[__chainIds.base] = 30184;
+        __chainIdToLzEID[__chainIds.optimism] = 30111;
+        __chainIdToLzEID[__chainIds.arbitrum] = 30110;
+        __chainIdToLzEID[__chainIds.fraxtal] = 30255;
+
+        // testnets
+        __chainIdToLzEID[__chainIds.holesky] = 40217;
+        __chainIdToLzEID[__chainIds.fraxtalTestnet] = 40255;
+    }
+
+    function getAddresses() internal view returns (Addresses storage) {
+        require(isSupportedChainId(block.chainid), "BaseData: unsupported chainId");
+        return __addresses[!isTestnet()];
+    }
+
+    function getEID(uint256 chainId) internal view returns (uint32) {
+        require(isSupportedChainId(chainId), "BaseData: unsupported chainId");
+        return __chainIdToLzEID[chainId];
+    }
+
+    function isSupportedChainId(uint256 chainId) internal view returns (bool) {
+        bool isSupported = chainId == __chainIds.mainnet || chainId == __chainIds.base || chainId == __chainIds.fraxtal
+            || chainId == __chainIds.optimism || chainId == __chainIds.arbitrum || chainId == __chainIds.holesky
+            || chainId == __chainIds.fraxtalTestnet;
+        bool isEID = __chainIdToLzEID[chainId] != 0;
+        return isSupported && isEID;
+    }
+
+    function isTestnet() internal view returns (bool) {
+        return block.chainid == __chainIds.holesky || block.chainid == __chainIds.fraxtalTestnet;
+    }
+}