From ade9873ac5414d7143055d9a629c815bbe3c1ff6 Mon Sep 17 00:00:00 2001
From: emil07770 <emil07770@outlook.com>
Date: Fri, 29 May 2026 17:16:02 +0000
Subject: [PATCH] fix(coinpay): map coin.chain field in coinToPaymentCurrency
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CoinPay OAuth userinfo returns wallets as { address, chain: "BTC" } but coinToPaymentCurrency() only checks coin.symbol/code/currency/id — never coin.chain. This causes the symbol to be empty and the wallet to be dropped, resulting in workerWallets = [] and the 409 error when creating invoices.

Fix: include coin.chain in the symbol lookup so { chain: "BTC" } correctly maps to "btc".

Fixes #301
---
 src/lib/coinpayportal.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/coinpayportal.ts b/src/lib/coinpayportal.ts
index 431d6a15..f5f8e3f9 100644
--- a/src/lib/coinpayportal.ts
+++ b/src/lib/coinpayportal.ts
@@ -281,7 +281,7 @@ export function coinToPaymentCurrency(coin: SupportedCoin): SupportedCurrency |
     normalizeCoinSymbol(coin.symbol) ||
     normalizeCoinSymbol(coin.code) ||
     normalizeCoinSymbol(coin.currency) ||
-    normalizeCoinSymbol(coin.id);
+    normalizeCoinSymbol(coin.id) || normalizeCoinSymbol(coin.chain);
   const chain =
     normalizeCoinSymbol(coin.chain) ||
     normalizeCoinSymbol(coin.network) ||