From b94295a14f9b0174d0f762d44e56870805557cb8 Mon Sep 17 00:00:00 2001
From: michael1011 <me@michael1011.at>
Date: Wed, 27 Dec 2023 11:59:33 +0100
Subject: [PATCH] fix: refunds on invoice payment failure (#406)

---
 src/components/Refund.tsx |  2 +-
 src/helper.js             | 22 +++++++++++++++++++++-
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/components/Refund.tsx b/src/components/Refund.tsx
index aff5007a..ee2a0b89 100644
--- a/src/components/Refund.tsx
+++ b/src/components/Refund.tsx
@@ -44,7 +44,7 @@ const Refund = ({ swap }: { swap: Accessor<Record<string, any>> }) => {
             />
             <button
                 class="btn"
-                disabled={valid()}
+                disabled={!valid()}
                 onclick={() => refund(swap(), t)}>
                 {t("refund")}
             </button>
diff --git a/src/helper.js b/src/helper.js
index b9994b10..5ad9c46c 100644
--- a/src/helper.js
+++ b/src/helper.js
@@ -197,7 +197,27 @@ export async function refund(swap, t) {
     log.info("refunding swap: ", swap.id);
     let [_, fees] = await Promise.all([setup(), getfeeestimation(swap)]);
 
-    const txToRefund = transactionToRefund();
+    let txToRefund = transactionToRefund();
+
+    if (txToRefund === null) {
+        txToRefund = await new Promise((resolve, reject) => {
+            fetcher(
+                "/getswaptransaction",
+                (res) => {
+                    log.debug(`got swap transaction for ${swap.id}`);
+                    resolve(res);
+                },
+                {
+                    id: swap.id,
+                },
+                () => {
+                    log.warn(`no swap transaction for: ${swap.id}`);
+                    reject();
+                },
+            );
+        });
+    }
+
     const Transaction = getTransaction(asset_name);
     const constructRefundTransaction =
         getConstructRefundTransaction(asset_name);