add useful event info

Author: Rahul Maganti

evm/src/NttManager.sol

@@ -557,7 +557,7 @@ contract NttManager is
             recipientChain, priceQuotes, instructions, enabledTransceivers, encodedNttManagerPayload
         );
 
-        emit TransferSent(recipient, _nttUntrim(amount), recipientChain, seq);
+        emit TransferSent(recipient, _nttUntrim(amount), msg.value, recipientChain, seq);
 
         // return the sequence number
         return sequence;

evm/src/WormholeTransceiver.sol

@@ -41,6 +41,12 @@ contract WormholeTransceiver is Transceiver, IWormholeTransceiver, IWormholeRece
         bool shouldSkipRelayerSend;
     }
 
+    enum RelayingType {
+        Standard,
+        Special,
+        Manual
+    }
+
     /// =============== STORAGE ===============================================
 
     bytes32 private constant WORMHOLE_CONSUMED_VAAS_SLOT =
@@ -216,14 +222,19 @@ contract WormholeTransceiver is Transceiver, IWormholeTransceiver, IWormholeRece
                 0,
                 GAS_LIMIT
             );
+
+            emit RelayingInfo(uint8(RelayingType.Standard), deliveryPayment);
         } else if (!weIns.shouldSkipRelayerSend && isSpecialRelayingEnabled(recipientChain)) {
             uint64 sequence =
                 wormhole.publishMessage(0, encodedTransceiverPayload, consistencyLevel);
             specialRelayer.requestDelivery{value: deliveryPayment}(
                 getNttManagerToken(), recipientChain, 0, sequence
             );
+
+            emit RelayingInfo(uint8(RelayingType.Special), deliveryPayment);
         } else {
             wormhole.publishMessage(0, encodedTransceiverPayload, consistencyLevel);
+            emit RelayingInfo(uint8(RelayingType.Manual), deliveryPayment);
         }
 
         emit SendTransceiverMessage(recipientChain, transceiverMessage);

evm/src/interfaces/INttManagerEvents.sol

@@ -6,13 +6,14 @@ import "../libraries/TrimmedAmount.sol";
 interface INttManagerEvents {
     /// @notice Emitted when a message is sent from the nttManager.
     /// @dev Topic0
-    ///      0x71ec1d4b53baa86365b6523ea136c9fe0f72c36c721e7e28e9efac2c23b39d98.
+    ///      0x9716fe52fe4e02cf924ae28f19f5748ef59877c6496041b986fbad3dae6a8ecf
     /// @param recipient The recipient of the message.
     /// @param amount The amount transferred.
+    /// @param fee The amount of ether sent along with the tx to cover the delivery fee.
     /// @param recipientChain The chain ID of the recipient.
     /// @param msgSequence The unique sequence ID of the message.
     event TransferSent(
-        bytes32 recipient, uint256 amount, uint16 recipientChain, uint64 msgSequence
+        bytes32 recipient, uint256 amount, uint256 fee, uint16 recipientChain, uint64 msgSequence
     );
 
     /// @notice Emitted when the peer contract is updated.
@@ -66,5 +67,5 @@ interface INttManagerEvents {
     /// @dev Topic0
     ///      0x504e6efe18ab9eed10dc6501a417f5b12a2f7f2b1593aed9b89f9bce3cf29a91.
     /// @param digest The digest of the message.
-    event TransferRedeemed(bytes32 digest);
+    event TransferRedeemed(bytes32 indexed digest);
 }

evm/src/interfaces/IWormholeTransceiver.sol

@@ -12,6 +12,7 @@ interface IWormholeTransceiver {
     event SendTransceiverMessage(
         uint16 recipientChain, TransceiverStructs.TransceiverMessage message
     );
+    event RelayingInfo(uint8 relayingType, uint256 deliveryPayment);
     event SetWormholePeer(uint16 chainId, bytes32 peerContract);
     event SetIsWormholeRelayingEnabled(uint16 chainId, bool isRelayingEnabled);
     event SetIsSpecialRelayingEnabled(uint16 chainId, bool isRelayingEnabled);