Added more events to help frontend team to track withdrawal status (#931

)

## Describe your changes
Added more events to help frontend team to track withdrawal status.

pallets/thea-executor/src/lib.rs

@@ -197,6 +197,8 @@ pub mod pallet {
 		WithdrawalFeeSet(u8, u128),
 		/// Native Token Burn event
 		NativeTokenBurned(T::AccountId, u128),
+		/// Withdrawal Sent (Network, Withdrawal Id,Batch Outgoing Nonce, Withdrawal Index)
+		WithdrawalSent(Network, Vec<u8>, u64, u8),
 	}
 
 	// Errors inform users that something went wrong.
@@ -243,13 +245,22 @@ pub mod pallet {
 				<ReadyWithdrawals<T>>::iter_prefix(block_no.saturating_sub(1u8.into()));
 			let mut withdrawal_len = 0;
 			let mut network_len = 0;
-			for (network_id, withdrawal) in pending_withdrawals {
-				withdrawal_len += withdrawal.len();
+			for (network_id, withdrawals) in pending_withdrawals {
+				withdrawal_len += withdrawals.len();
+				let batch_nonce = T::Executor::get_outgoing_nonce(network_id);
+				for (index, withdrawal) in withdrawals.iter().enumerate() {
+					Self::deposit_event(Event::<T>::WithdrawalSent(
+						network_id,
+						withdrawal.id.clone(),
+						batch_nonce,
+						index as u8,
+					));
+				}
 				// This is fine as this trait is not supposed to fail
-				if T::Executor::execute_withdrawals(network_id, withdrawal.clone().encode())
+				if T::Executor::execute_withdrawals(network_id, withdrawals.clone().encode())
 					.is_err()
 				{
-					Self::deposit_event(Event::<T>::WithdrawalFailed(network_id, withdrawal))
+					Self::deposit_event(Event::<T>::WithdrawalFailed(network_id, withdrawals))
 				}
 				network_len += 1;
 			}

pallets/thea-message-handler/src/lib.rs

@@ -338,4 +338,9 @@ impl<T: Config> thea_primitives::TheaOutgoingExecutor for Pallet<T> {
 
 		Ok(())
 	}
+
+	fn get_outgoing_nonce(network: Network) -> u64 {
+		let nonce = <OutgoingNonce<T>>::get();
+		nonce.saturating_add(1)
+	}
 }

pallets/thea/src/lib.rs

@@ -880,4 +880,9 @@ impl<T: Config> thea_primitives::TheaOutgoingExecutor for Pallet<T> {
 		<OutgoingMessages<T>>::insert(network, payload.nonce, payload);
 		Ok(())
 	}
+
+	fn get_outgoing_nonce(network: Network) -> u64 {
+		let nonce = <OutgoingNonce<T>>::get(network);
+		nonce.saturating_add(1)
+	}
 }

primitives/thea/src/lib.rs

@@ -99,6 +99,7 @@ pub trait TheaIncomingExecutor {
 /// Thea outgoing message executor abstraction which should be implemented by the "Thea" pallet.
 pub trait TheaOutgoingExecutor {
 	fn execute_withdrawals(network: Network, withdrawals: Vec<u8>) -> DispatchResult;
+	fn get_outgoing_nonce(network: Network) -> u64;
 }
 
 impl TheaIncomingExecutor for () {