From 4d2b3c67141dcd1d258fe13a2659fe3388b32412 Mon Sep 17 00:00:00 2001
From: Morty <70688412+yiweichi@users.noreply.github.com>
Date: Wed, 14 Aug 2024 03:30:52 +0800
Subject: [PATCH] fix: emit DepositWrappedToken event (#23)

---
 docker/templates/bridge-history-config.json         |  3 ++-
 scripts/deterministic/GenerateConfigs.s.sol         |  1 +
 src/alternative-gas-token/L1WrappedTokenGateway.sol | 12 ++++++++++++
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/docker/templates/bridge-history-config.json b/docker/templates/bridge-history-config.json
index 73291d8..66de7d2 100644
--- a/docker/templates/bridge-history-config.json
+++ b/docker/templates/bridge-history-config.json
@@ -19,7 +19,8 @@
     "LIDOGatewayAddr": "0x0000000000000000000000000000000000000000",
     "DAIGatewayAddr": "0x0000000000000000000000000000000000000000",
     "PufferGatewayAddr": "0x0000000000000000000000000000000000000000",
-		"GasTokenGatewayAddr": null
+		"GasTokenGatewayAddr": null,
+    "WrappedTokenGatewayAddr": null
   },
   "L2": {
     "confirmation": 0,
diff --git a/scripts/deterministic/GenerateConfigs.s.sol b/scripts/deterministic/GenerateConfigs.s.sol
index fcc47eb..bcc8946 100644
--- a/scripts/deterministic/GenerateConfigs.s.sol
+++ b/scripts/deterministic/GenerateConfigs.s.sol
@@ -187,6 +187,7 @@ contract GenerateBridgeHistoryConfig is DeployScroll {
         vm.writeJson(vm.toString(L1_ERC721_GATEWAY_PROXY_ADDR), BRIDGE_HISTORY_CONFIG_PATH, ".L1.ERC721GatewayAddr");
         vm.writeJson(vm.toString(L1_ERC1155_GATEWAY_PROXY_ADDR), BRIDGE_HISTORY_CONFIG_PATH, ".L1.ERC1155GatewayAddr");
         vm.writeJson(vm.toString(L1_GAS_TOKEN_GATEWAY_PROXY_ADDR), BRIDGE_HISTORY_CONFIG_PATH, ".L1.GasTokenGatewayAddr");
+        vm.writeJson(vm.toString(L1_WRAPPED_TOKEN_GATEWAY_ADDR), BRIDGE_HISTORY_CONFIG_PATH, ".L1.WrappedTokenGatewayAddr");
 
         // L2 contracts
         vm.writeJson(vm.toString(L2_MESSAGE_QUEUE_ADDR), BRIDGE_HISTORY_CONFIG_PATH, ".L2.MessageQueueAddr");
diff --git a/src/alternative-gas-token/L1WrappedTokenGateway.sol b/src/alternative-gas-token/L1WrappedTokenGateway.sol
index 21ccca9..065a00f 100644
--- a/src/alternative-gas-token/L1WrappedTokenGateway.sol
+++ b/src/alternative-gas-token/L1WrappedTokenGateway.sol
@@ -12,6 +12,16 @@ import {IWETH} from "../interfaces/IWETH.sol";
 contract L1WrappedTokenGateway {
     using SafeERC20 for IERC20;
 
+    /**********
+     * Events *
+     **********/
+
+    /// @notice Emitted when someone wrap ETH to WETH and then deposit WETH from L1 to L2.
+    /// @param from The address of sender in L1.
+    /// @param to The address of recipient in L2.
+    /// @param amount The amount of ETH will be deposited from L1 to L2.
+    event DepositWrappedToken(address indexed from, address indexed to, uint256 amount);
+
     /*********
      * Error *
      *********/
@@ -79,6 +89,8 @@ contract L1WrappedTokenGateway {
         IL1ERC20Gateway(gateway).depositERC20{value: msg.value - _amount}(WETH, _to, _amount, SAFE_GAS_LIMIT);
         sender = DEFAULT_SENDER;
 
+        emit DepositWrappedToken(msg.sender, _to, _amount);
+
         // refund exceed fee
         uint256 balance = address(this).balance;
         if (balance > 0) {