From 517065e5bd34f7e1d5c27ce8c86476cd0810636a Mon Sep 17 00:00:00 2001
From: Adam Soltys <asoltys@gmail.com>
Date: Tue, 23 Jan 2024 12:51:20 -0800
Subject: return ourfee minus covered credits

---
 index.js           | 1 +
 lib/db.js          | 2 +-
 lib/payments.js    | 6 +++---
 routes/payments.js | 7 ++++++-
 4 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/index.js b/index.js
index 48246f42..9cbd373f 100644
--- a/index.js
+++ b/index.js
@@ -63,6 +63,7 @@ app.get("/fund/:name/withdraw", payments.withdraw);
 app.post("/take", auth, payments.take);
 app.post("/print", auth, payments.print);
 app.post("/send/:lnaddress/:amount", auth, payments.lnaddress);
+app.post("/gateway", payments.gateway);
 
 app.get("/encode", lnurl.encode);
 app.get("/decode", lnurl.decode);
diff --git a/lib/db.js b/lib/db.js
index 10c54f02..20fc2cd2 100644
--- a/lib/db.js
+++ b/lib/db.js
@@ -24,7 +24,7 @@ end
 redis.call('decrby', creditKey, tostring(math.floor(covered)))
 redis.call('decrby', balanceKey, tostring(math.floor(amount + tip + fee + ourfee)))
 
-return {ok = 'ok'}
+return {ok = ourfee}
 `;
 
 let debit = defineScript({
diff --git a/lib/payments.js b/lib/payments.js
index 796ad18b..8da04b38 100644
--- a/lib/payments.js
+++ b/lib/payments.js
@@ -72,7 +72,7 @@ export let debit = async ({
     ? Math.round(amount * config.fee)
     : 0;
 
-  let r = await db.debit(
+    let r = await db.debit(
     `balance:${uid}`,
     `credit:${type}:${uid}`,
     amount || 0,
@@ -81,7 +81,7 @@ export let debit = async ({
     ourfee || 0,
   );
 
-  if (r !== "ok") fail("Problem debiting account");
+  if (!r || r.err) fail("Problem debiting account");
 
   let id = v4();
   let p = {
@@ -89,7 +89,7 @@ export let debit = async ({
     amount: -amount,
     fee,
     hash,
-    ourfee,
+      ourfee: r.ourfee,
     memo,
     iid,
     uid,
diff --git a/routes/payments.js b/routes/payments.js
index 768307c0..6e0f1159 100644
--- a/routes/payments.js
+++ b/routes/payments.js
@@ -327,7 +327,7 @@ export default {
         type === types.liquid ? await node.blindRawTransaction(hex) : hex,
       );
 
-        ({ txid } = await node.decodeRawTransaction(signed));
+      ({ txid } = await node.decodeRawTransaction(signed));
 
       let r = await node.testMempoolAccept([signed]);
       if (!r[0].allowed) fail("transaction rejected");
@@ -463,4 +463,9 @@ export default {
       bail(res, e.message);
     }
   },
+
+  async gateway({ body: { short_channel_id, webhook } }, res) {
+    await s(short_channel_id, webhook);
+    res.send({ ok: true });
+  },
 };
-- 
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