skip processed payments

1 files changed, 9 insertions, 1 deletions

diff --git a/lib/payments.js b/lib/payments.js
index 6e2e3a99..5dc24c9b 100644
--- a/lib/payments.js
+++ b/lib/payments.js
@@ -115,7 +115,15 @@ export let credit = async (hash, amount, memo, ref, type = types.internal) => {
   let { id: uid, currency, username } = user;
 
   let rate = store.rates[currency];
-  if (Math.abs(invoice.rate / rate - 1) < 0.01) rate = invoice.rate;
+
+  let equivalentRate =
+    invoice.rate * (store.rates[currency] / store.rates[invoice.currency]);
+
+  if (Math.abs(invoice.rate / store.rates[invoice.currency] - 1) < 0.01) {
+    rate = equivalentRate;
+  } else {
+    warn("rate slipped", hash, invoice.rate, equivalentRate);
+  }
 
   let p = {
     hash,