From f1389aa4a1e104e1380da3342f79b0cde6dd5c75 Mon Sep 17 00:00:00 2001
From: Adam Soltys <asoltys@gmail.com>
Date: Mon, 4 Mar 2024 20:35:08 -0800
Subject: payment checking lock

---
 lib/payments.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/payments.js b/lib/payments.js
index 2d1bf6c0..5958bc14 100644
--- a/lib/payments.js
+++ b/lib/payments.js
@@ -439,6 +439,7 @@ let getMaxFee = (n) =>
               : n * 0.01,
   );
 
+let checking = {};
 export let sendLightning = async ({ user, pr, amount, maxfee, memo }) => {
   let p;
   let hash = pr;
@@ -481,14 +482,18 @@ export let sendLightning = async ({ user, pr, amount, maxfee, memo }) => {
     });
 
     let check = async () => {
+      if (checking(pr)) return;
+      checking[pr] = true;
+
       try {
         let { pays } = await ln.listpays(pr);
 
-        let recordExists = !!(await g(`payment:${p.id}`));
+        let recordExists = !!(await g(`payment:${pr}`));
         let paymentFailed =
           !pays.length || pays.every((p) => p.status === "failed");
 
         if (recordExists && paymentFailed) {
+          await db.del(`payment:${pr}`);
           await db.del(`payment:${p.id}`);
 
           let ourfee = p.ourfee || 0;
@@ -503,6 +508,8 @@ export let sendLightning = async ({ user, pr, amount, maxfee, memo }) => {
       } catch (e) {
         err("Failed to reverse payment", r);
       }
+
+        checking[pr] = false;
     };
 
     let interval = setInterval(check, 5000);
-- 
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