Log balances for UtxoAdded Events

contracts/satoshi-bridge/src/btc_light_client/deposit.rs

@@ -223,6 +223,9 @@ impl Contract {
         if is_success {
             Event::UtxoAdded {
                 utxo_storage_keys: vec![pending_utxo_info.utxo_storage_key.clone()],
+                balances: Some(vec![U128::from(<u64 as Into<u128>>::into(
+                    pending_utxo_info.utxo.balance,
+                ))]),
             }
             .emit();
             self.internal_set_utxo(&pending_utxo_info.utxo_storage_key, pending_utxo_info.utxo);

contracts/satoshi-bridge/src/event.rs

@@ -84,6 +84,7 @@ pub enum Event<'a> {
     },
     UtxoAdded {
         utxo_storage_keys: Vec<String>,
+        balances: Option<Vec<U128>>,
     },
     UtxoRemoved {
         utxo_storage_keys: Vec<String>,

contracts/satoshi-bridge/src/nbtc/burn.rs

@@ -81,6 +81,7 @@ impl Contract {
                 .expect("Deserialization tx_bytes failed");
             let withdraw_change_script_pubkey = config.get_change_script_pubkey();
             let mut utxo_storage_keys = vec![];
+            let mut balances = vec![];
             for (index, output) in transaction.output().into_iter().enumerate() {
                 if withdraw_change_script_pubkey == output.script_pubkey {
                     let utxo = UTXO {
@@ -93,6 +94,7 @@ impl Contract {
                         tx_id.clone(),
                         u32::try_from(index).unwrap_or_else(|_| env::panic_str("Index overflow")),
                     );
+                    balances.push(U128::from(<u64 as Into<u128>>::into(utxo.balance)));
                     self.internal_set_utxo(&utxo_storage_key, utxo);
                     utxo_storage_keys.push(utxo_storage_key);
                 }
@@ -138,7 +140,11 @@ impl Contract {
                 self.internal_transfer_nbtc(&btc_pending_info.account_id, refund);
             }
             self.internal_remove_btc_pending_info(&tx_id);
-            Event::UtxoAdded { utxo_storage_keys }.emit();
+            Event::UtxoAdded {
+                utxo_storage_keys,
+                balances: Some(balances),
+            }
+            .emit();
         } else {
             self.internal_unwrap_mut_btc_pending_info(&tx_id)
                 .to_pending_verify_stage();
@@ -163,6 +169,7 @@ impl Contract {
             let config = self.internal_config();
             let withdraw_change_script_pubkey = config.get_change_script_pubkey();
             let mut utxo_storage_keys = vec![];
+            let mut balances: Vec<U128> = vec![];
             for (index, output) in transaction.output().into_iter().enumerate() {
                 if withdraw_change_script_pubkey == output.script_pubkey {
                     let utxo = UTXO {
@@ -175,6 +182,8 @@ impl Contract {
                         tx_id.clone(),
                         u32::try_from(index).unwrap_or_else(|_| env::panic_str("Index overflow")),
                     );
+
+                    balances.push(U128::from(<u64 as Into<u128>>::into(utxo.balance)));
                     self.internal_set_utxo(&utxo_storage_key, utxo);
                     utxo_storage_keys.push(utxo_storage_key);
                 }
@@ -205,7 +214,11 @@ impl Contract {
                 self.data_mut().rbf_txs.remove(&tx_id);
             }
             self.internal_remove_btc_pending_info(&tx_id);
-            Event::UtxoAdded { utxo_storage_keys }.emit();
+            Event::UtxoAdded {
+                utxo_storage_keys,
+                balances: Some(balances),
+            }
+            .emit();
         } else {
             self.internal_unwrap_mut_btc_pending_info(&tx_id)
                 .to_pending_verify_stage();

contracts/satoshi-bridge/src/nbtc/mint.rs

@@ -62,6 +62,9 @@ impl Contract {
             }
             Event::UtxoAdded {
                 utxo_storage_keys: vec![pending_utxo_info.utxo_storage_key.clone()],
+                balances: Some(vec![U128::from(<u64 as Into<u128>>::into(
+                    pending_utxo_info.utxo.balance,
+                ))]),
             }
             .emit();
             self.internal_set_utxo(&pending_utxo_info.utxo_storage_key, pending_utxo_info.utxo);