From 95d5b78542d06246e2a97727864b3401df1b8f28 Mon Sep 17 00:00:00 2001
From: pokkst <pokkst@protonmail.com>
Date: Thu, 22 Sep 2022 17:13:19 -0500
Subject: [PATCH] Add code comments

---
 .../java/net/mynero/wallet/service/MoneroHandlerThread.java  | 1 +
 app/src/main/java/net/mynero/wallet/service/UTXOService.java | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/net/mynero/wallet/service/MoneroHandlerThread.java b/app/src/main/java/net/mynero/wallet/service/MoneroHandlerThread.java
index a69ff7f..d3b02a4 100644
--- a/app/src/main/java/net/mynero/wallet/service/MoneroHandlerThread.java
+++ b/app/src/main/java/net/mynero/wallet/service/MoneroHandlerThread.java
@@ -125,6 +125,7 @@ public class MoneroHandlerThread extends Thread implements WalletListener {
         long amount = sendAll ? Wallet.SWEEP_ALL : Wallet.getAmountFromString(amountStr);
         ArrayList<String> preferredInputs;
         if(selectedUtxos.isEmpty()) {
+            // no inputs manually selected, we are sending from home screen most likely, or user somehow broke the app
             preferredInputs = UTXOService.getInstance().selectUtxos(amount, sendAll);
         } else {
             preferredInputs = selectedUtxos;
diff --git a/app/src/main/java/net/mynero/wallet/service/UTXOService.java b/app/src/main/java/net/mynero/wallet/service/UTXOService.java
index da4b06b..b288cf1 100644
--- a/app/src/main/java/net/mynero/wallet/service/UTXOService.java
+++ b/app/src/main/java/net/mynero/wallet/service/UTXOService.java
@@ -39,12 +39,15 @@ public class UTXOService extends ServiceBase {
         List<CoinsInfo> utxos = getUtxos();
         long amountSelected = 0;
         Collections.shuffle(utxos);
+        //loop through each utxo
         for (CoinsInfo coinsInfo : utxos) {
-            if(!coinsInfo.isSpent()) {
+            if(!coinsInfo.isSpent()) { //filter out spent outputs
                 if (sendAll) {
+                    // if send all, add all utxos and set amount to send all
                     selectedUtxos.add(coinsInfo.getKeyImage());
                     amountSelected = Wallet.SWEEP_ALL;
                 } else {
+                    //if amount selected is still less than amount needed, and the utxos tx hash hasn't already been seen, add utxo
                     if (amountSelected <= amount && !seenTxs.contains(coinsInfo.getHash())) {
                         selectedUtxos.add(coinsInfo.getKeyImage());
                         // we don't want to spend multiple utxos from the same transaction, so we prevent that from happening here.