fix: set channelIds as destination

Author: reednaa

src/apps/polymer/vIBCEscrow.sol

@@ -118,9 +118,6 @@ contract IncentivizedPolymerEscrow is APolymerEscrow, IbcReceiverBase, IbcReceiv
 
     //--- IBC Packet Callbacks ---//
 
-    // packet.srcPortAddr is the IncentivizedPolymerEscrow address on the source chain.
-    // packet.destPortAddr is the address of this contract.
-    // channelId: the channel id from the running chain's perspective, which can be used to identify the counterparty chain.
     function onRecvPacket(IbcPacket calldata packet)
         external override
         onlyIbcDispatcher
@@ -129,12 +126,12 @@ contract IncentivizedPolymerEscrow is APolymerEscrow, IbcReceiverBase, IbcReceiv
         uint256 gasLimit = gasleft();
         bytes32 feeRecipitent = bytes32(uint256(uint160(tx.origin)));
 
-        // Collect the implementation identifier we added. Remember, this is trusted IFF packet.src.channelId is trusted.
+        // Collect the implementation identifier we added. Remember, this is trusted IFF packet.dest.channelId is trusted.
         // sourceImplementationIdentifier has already been defined by the channel on channel creation.
         bytes memory sourceImplementationIdentifier = packet.data[POLYMER_SENDER_IDENTIFIER_START:POLYMER_SENDER_IDENTIFIER_END];
 
         bytes memory receiveAck = _handleMessage(
-            packet.src.channelId,
+            packet.dest.channelId,
             sourceImplementationIdentifier,
             packet.data[POLYMER_PACKAGE_PAYLOAD_START: ],
             feeRecipitent,
@@ -155,18 +152,18 @@ contract IncentivizedPolymerEscrow is APolymerEscrow, IbcReceiverBase, IbcReceiv
         uint256 gasLimit = gasleft();
         bytes32 feeRecipitent = bytes32(uint256(uint160(tx.origin)));
 
-        // Collect the implementation identifier we added. Remember, this is trusted IFF packet.src.channelId is trusted.
+        // Collect the implementation identifier we added. Remember, this is trusted IFF packet.dest.channelId is trusted.
         bytes memory destinationImplementationIdentifier = ack.data[POLYMER_SENDER_IDENTIFIER_START:POLYMER_SENDER_IDENTIFIER_END];
 
         // Get the payload by removing the implementation identifier.
         bytes calldata rawMessage = ack.data[POLYMER_PACKAGE_PAYLOAD_START:];
 
         // Set a verificaiton context so we can recover the ack.
         isVerifiedMessageHash[keccak256(rawMessage)] = VerifiedMessageHashContext({
-            chainIdentifier: packet.src.channelId,
+            chainIdentifier: packet.dest.channelId,
             implementationIdentifier: destinationImplementationIdentifier
         });
-        _handleAck(packet.src.channelId, destinationImplementationIdentifier, rawMessage, feeRecipitent, gasLimit);
+        _handleAck(packet.dest.channelId, destinationImplementationIdentifier, rawMessage, feeRecipitent, gasLimit);
     }
 
     function onTimeoutPacket(IbcPacket calldata packet) external override onlyIbcDispatcher{
@@ -178,7 +175,7 @@ contract IncentivizedPolymerEscrow is APolymerEscrow, IbcReceiverBase, IbcReceiv
         bytes32 messageIdentifier = bytes32(rawMessage[MESSAGE_IDENTIFIER_START:MESSAGE_IDENTIFIER_END]);
         address fromApplication = address(uint160(bytes20(rawMessage[FROM_APPLICATION_START_EVM:FROM_APPLICATION_END])));
         _handleTimeout(
-            packet.src.channelId, messageIdentifier, fromApplication, rawMessage[CTX0_MESSAGE_START:], feeRecipitent, gasLimit
+            packet.dest.channelId, messageIdentifier, fromApplication, rawMessage[CTX0_MESSAGE_START:], feeRecipitent, gasLimit
         );
     }