feat: add default configs for Gateway and FHEVM

config/DefaultFHEVMConfig.sol

@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+pragma solidity ^0.8.24;
+
+import {FHEVMConfig, TFHE} from "../lib/TFHE.sol";
+
+/**
+ * @dev Address of the ACL contract from Zama for mock purposes.
+ */
+address constant ACL_MOCK = 0x339EcE85B9E11a3A3AA557582784a15d7F82AAf2;
+
+/**
+ * @dev Address of the TFHEExecutor contract from Zama for mock purposes.
+ */
+address constant TFHEEXECUTOR_MOCK = 0x596E6682c72946AF006B27C131793F2b62527A4b;
+
+/**
+ * @dev Address of the FHEPayment contract from Zama for mock purposes.
+ */
+address constant FHEPAYMENT_MOCK = 0x6d5A11aC509C707c00bc3A0a113ACcC26c532547;
+
+/**
+ * @dev Address of the KMSVerifier contract from Zama for mock purposes.
+ */
+address constant KMSVERIFIER_MOCK = 0x208De73316E44722e16f6dDFF40881A3e4F86104;
+
+/**
+ * @title   ZamaConfig.
+ * @notice  This library returns the TFHE config for different networks
+ *          with the contract addresses for
+ *          (1) ACL, (2) TFHEExecutor, (3) FHEPayment, (4) KMSVerifier,
+ *          which are deployed & maintained by Zama.
+ */
+library ZamaFHEVMConfig {
+    function getMockConfig() internal pure returns (FHEVMConfig.FHEVMConfigStruct memory) {
+        return
+            FHEVMConfig.FHEVMConfigStruct({
+                ACLAddress: ACL_MOCK,
+                TFHEExecutorAddress: TFHEEXECUTOR_MOCK,
+                FHEPaymentAddress: FHEPAYMENT_MOCK,
+                KMSVerifierAddress: KMSVERIFIER_MOCK
+            });
+    }
+
+    function getSepoliaConfig() internal pure returns (FHEVMConfig.FHEVMConfigStruct memory) {
+        /// TODO
+    }
+
+    function getMainnetConfig() internal pure returns (FHEVMConfig.FHEVMConfigStruct memory) {
+        /// TODO
+    }
+}
+
+/**
+ * @title   MockZamaFHEVMConfig.
+ * @dev     This contract can be inherited by a contract wishing to use these contracts on the mock
+ *          environment provided by Zama.
+ *          Other providers may offer similar contracts deployed at different addresses.
+ *          If you wish to use them, you should rely on the instructions provided by these providers.
+ */
+contract MockZamaFHEVMConfig {
+    constructor() {
+        TFHE.setFHEVM(ZamaFHEVMConfig.getMockConfig());
+    }
+}
+
+/**
+ * @title   SepoliaZamaFHEVMConfig.
+ * @dev     This contract can be inherited by a contract wishing to use the FHEVM contracts provided by Zama
+ *          on the Sepolia network.
+ *          Other providers may offer similar contracts deployed at different addresses.
+ *          If you wish to use them, you should rely on the instructions provided by these providers.
+ */
+contract SepoliaZamaFHEVMConfig {
+    constructor() {
+        TFHE.setFHEVM(ZamaFHEVMConfig.getSepoliaConfig());
+    }
+}
+
+/**
+ * @title   MainnetZamaFHEVMConfig.
+ * @dev     This contract can be inherited by a contract wishing to use the FHEVM contracts provided by Zama
+ *          on the Mainnet network.
+ *          Other providers may offer similar contracts deployed at different addresses.
+ *          If you wish to use them, you should rely on the instructions provided by these providers.
+ */
+contract MainnetZamaFHEVMConfig {
+    constructor() {
+        TFHE.setFHEVM(ZamaFHEVMConfig.getMainnetConfig());
+    }
+}

config/DefaultGatewayConfig.sol

@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+pragma solidity ^0.8.24;
+
+import {Gateway} from "../gateway/lib/Gateway.sol";
+
+/**
+ * @dev Address of the Gateway contract from Zama for mock purposes.
+ */
+address constant GATEWAY_MOCK = 0x096b4679d45fB675d4e2c1E4565009Cec99A12B1;
+
+/**
+ * @title   MockZamaGatewayConfig.
+ * @notice  This config contains the mock Gateway config with the address for the Gateway
+ *          contract deployed & maintained by Zama.
+ * @dev     This contract can be inherited by a contract wishing to use the Gateway service
+ *          provided by Zama.
+ *          Other providers may offer other Gateways deployed at different addresses.
+ *          If you wish to use them, you should rely on the instructions provided by these providers.
+ */
+contract MockZamaGatewayConfig {
+    constructor() {
+        Gateway.setGateway(GATEWAY_MOCK);
+    }
+}