From 76a07315f3206c66b720171f07debae7b60c3d05 Mon Sep 17 00:00:00 2001
From: ncois <nat.coisne@gmail.com>
Date: Thu, 16 Nov 2023 18:36:49 +0100
Subject: [PATCH] Fix P2PK balance display in address page

---
 contributors/ncois.txt                        |  3 ++
 .../transactions-list.component.ts            | 46 +++++++++++++++----
 2 files changed, 40 insertions(+), 9 deletions(-)
 create mode 100644 contributors/ncois.txt

diff --git a/contributors/ncois.txt b/contributors/ncois.txt
new file mode 100644
index 000000000..04a436613
--- /dev/null
+++ b/contributors/ncois.txt
@@ -0,0 +1,3 @@
+I hereby accept the terms of the Contributor License Agreement in the CONTRIBUTING.md file of the mempool/mempool git repository as of November 16, 2023.
+
+Signed: ncois
diff --git a/frontend/src/app/components/transactions-list/transactions-list.component.ts b/frontend/src/app/components/transactions-list/transactions-list.component.ts
index d066d3583..da9bdfe04 100644
--- a/frontend/src/app/components/transactions-list/transactions-list.component.ts
+++ b/frontend/src/app/components/transactions-list/transactions-list.component.ts
@@ -156,17 +156,45 @@ export class TransactionsListComponent implements OnInit, OnChanges {
         }
 
         if (this.address) {
-          const addressIn = tx.vout
-            .filter((v: Vout) => v.scriptpubkey_address === this.address)
-            .map((v: Vout) => v.value || 0)
-            .reduce((a: number, b: number) => a + b, 0);
+          const isP2PKUncompressed = this.address.length === 130;
+          const isP2PKCompressed = this.address.length === 66;
+          if (isP2PKCompressed) {
+            const addressIn = tx.vout
+              .filter((v: Vout) => v.scriptpubkey === '21' + this.address + 'ac')
+              .map((v: Vout) => v.value || 0)
+              .reduce((a: number, b: number) => a + b, 0);
 
-          const addressOut = tx.vin
-            .filter((v: Vin) => v.prevout && v.prevout.scriptpubkey_address === this.address)
-            .map((v: Vin) => v.prevout.value || 0)
-            .reduce((a: number, b: number) => a + b, 0);
+            const addressOut = tx.vin
+              .filter((v: Vin) => v.prevout && v.prevout.scriptpubkey === '21' + this.address + 'ac')
+              .map((v: Vin) => v.prevout.value || 0)
+              .reduce((a: number, b: number) => a + b, 0);
 
-          tx['addressValue'] = addressIn - addressOut;
+            tx['addressValue'] = addressIn - addressOut;
+          } else if (isP2PKUncompressed) {
+            const addressIn = tx.vout
+              .filter((v: Vout) => v.scriptpubkey === '41' + this.address + 'ac')
+              .map((v: Vout) => v.value || 0)
+              .reduce((a: number, b: number) => a + b, 0);
+
+            const addressOut = tx.vin
+              .filter((v: Vin) => v.prevout && v.prevout.scriptpubkey === '41' + this.address + 'ac')
+              .map((v: Vin) => v.prevout.value || 0)
+              .reduce((a: number, b: number) => a + b, 0);
+
+            tx['addressValue'] = addressIn - addressOut;
+          } else {
+            const addressIn = tx.vout
+              .filter((v: Vout) => v.scriptpubkey_address === this.address)
+              .map((v: Vout) => v.value || 0)
+              .reduce((a: number, b: number) => a + b, 0);
+
+            const addressOut = tx.vin
+              .filter((v: Vin) => v.prevout && v.prevout.scriptpubkey_address === this.address)
+              .map((v: Vin) => v.prevout.value || 0)
+              .reduce((a: number, b: number) => a + b, 0);
+
+            tx['addressValue'] = addressIn - addressOut;
+          }
         }
 
         this.priceService.getBlockPrice$(tx.status.block_time).pipe(