From 3f1abae01c56955400aab7c507468f6f06333b11 Mon Sep 17 00:00:00 2001
From: TheHolyRoger <theholyroger@theholyroger.com>
Date: Sat, 29 Aug 2020 14:25:09 +0100
Subject: [PATCH] Add `last_txs` to `getaddress` API

---
 app.js          | 50 ++++++++++++++++++++++++++++++++++++++-----------
 lib/database.js |  2 +-
 2 files changed, 40 insertions(+), 12 deletions(-)

diff --git a/app.js b/app.js
index ad979653f..f4ddf7e9a 100644
--- a/app.js
+++ b/app.js
@@ -60,17 +60,45 @@ app.use('/ext/getmoneysupply', function(req,res){
 
 app.use('/ext/getaddress/:hash', function(req,res){
   db.get_address(req.params.hash, function(address){
-    if (address) {
-      var a_ext = {
-        address: address.a_id,
-        sent: (address.sent / 100000000),
-        received: (address.received / 100000000),
-        balance: (address.balance / 100000000).toString().replace(/(^-+)/mg, ''),
-      };
-      res.send(a_ext);
-    } else {
-      res.send({ error: 'address not found.', hash: req.params.hash})
-    }
+    db.get_address_txs_ajax(req.params.hash, 0, settings.txcount, function(txs, count){
+      if (address) {
+        var last_txs = [];
+        for(i=0; i<txs.length; i++){
+          if(typeof txs[i].txid !== "undefined") {
+            var out = 0,
+            vin = 0,
+            tx_type = 'vout',
+            row = {};
+            txs[i].vout.forEach(function (r) {
+              if (r.addresses == req.params.hash) {
+                out += r.amount;
+              }
+            });
+            txs[i].vin.forEach(function (s) {
+              if (s.addresses == req.params.hash) {
+                vin += s.amount;
+              }
+            });
+            if (vin > out) {
+              tx_type = 'vin';
+            }
+            row['addresses'] = txs[i].txid;
+            row['type'] = tx_type;
+            last_txs.push(row);
+          }
+        }
+        var a_ext = {
+          address: address.a_id,
+          sent: (address.sent / 100000000),
+          received: (address.received / 100000000),
+          balance: (address.balance / 100000000).toString().replace(/(^-+)/mg, ''),
+          last_txs: last_txs,
+        };
+        res.send(a_ext);
+      } else {
+        res.send({ error: 'address not found.', hash: req.params.hash})
+      }
+    });
   });
 });
 
diff --git a/lib/database.js b/lib/database.js
index 4b772380b..0492f7411 100644
--- a/lib/database.js
+++ b/lib/database.js
@@ -417,7 +417,7 @@ module.exports = {
               } else {
                 var txs = [];
                 var count = address_tx.length;
-                var running_balance = balance_sum[0].balance;
+                var running_balance = balance_sum.length > 0 ? balance_sum[0].balance : 0;
 
                 var txs = [];