From 24e1b8f4ef7dda406f94ecf77cfbfc73b94d046c Mon Sep 17 00:00:00 2001
From: Denozordec <shatskiy.blog@gmail.com>
Date: Mon, 23 Mar 2026 23:05:34 +0700
Subject: [PATCH] =?UTF-8?q?fix(currency):=20=D0=B3=D0=BB=D0=BE=D0=B1=D0=B0?=
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Made-with: Cursor
---
 src/lib/utils.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/lib/utils.js b/src/lib/utils.js
index 61a3231..227cd0b 100644
--- a/src/lib/utils.js
+++ b/src/lib/utils.js
@@ -342,11 +342,15 @@ export function convertWithProviderRate(amount, currency, provider, appSettings,
   }
 
   const converted = convertCurrency(safeAmount, fromCurrency, appBase, ratesData)
-  const didConvert = Math.abs(converted - safeAmount) > 0.0001 || fromCurrency === appBase
+  // При сумме 0 convertCurrency даёт 0 = исходной сумме — нельзя отличить «успех» от сбоя.
+  // Проверяем конвертацию 1 единицы: при отсутствии курсов convertCurrency возвращает 1 без изменений.
+  const oneConverted = convertCurrency(1, fromCurrency, appBase, ratesData)
+  const globalRatesWork =
+    Number.isFinite(oneConverted) && Math.abs(oneConverted - 1) > 1e-8
   return {
     value: converted,
     currency: appBase,
-    source: didConvert ? 'global' : 'no-rates',
+    source: globalRatesWork ? 'global' : 'no-rates',
   }
 }