From 008f38c0d27b53c89857b8e27b95c80f808b8c9b Mon Sep 17 00:00:00 2001
From: Maxim Dolgolyov <maxim.dolgolyov@gmail.com>
Date: Tue, 2 Jun 2026 13:05:39 +0300
Subject: [PATCH] =?UTF-8?q?fix(flashcards):=20=D0=BE=D0=B1=D1=80=D0=B0?=
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- пустые поля -> тост-подсказка + фокус (раньше клик молчал)
- ошибка POST показывается тостом (раньше глоталась .catch)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 frontend/flashcards.html | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/frontend/flashcards.html b/frontend/flashcards.html
index 8377a4e..9078d8c 100644
--- a/frontend/flashcards.html
+++ b/frontend/flashcards.html
@@ -802,14 +802,24 @@ async function persistCardOrder() {
 }
 
 async function addCard() {
-  if (!_curDeck) return;
+  if (!_curDeck) { LS.toast('Сначала откройте колоду', 'error'); return; }
   const front = document.getElementById('new-card-front').value.trim();
   const back  = document.getElementById('new-card-back').value.trim();
-  if (!front && !back && !_newImg.front && !_newImg.back) return;
-  const card = await LS.api(`/api/flashcards/decks/${_curDeck.id}/cards`, {
-    method: 'POST',
-    body: JSON.stringify({ front, back, front_image: _newImg.front, back_image: _newImg.back })
-  }).catch(()=>null);
+  if (!front && !back && !_newImg.front && !_newImg.back) {
+    LS.toast('Введите вопрос или ответ карточки');
+    document.getElementById('new-card-front').focus();
+    return;
+  }
+  let card;
+  try {
+    card = await LS.api(`/api/flashcards/decks/${_curDeck.id}/cards`, {
+      method: 'POST',
+      body: JSON.stringify({ front, back, front_image: _newImg.front, back_image: _newImg.back })
+    });
+  } catch (e) {
+    LS.toast('Не удалось добавить карточку: ' + (e && e.message || 'ошибка'), 'error');
+    return;
+  }
   if (!card) return;
   _cards.push(card);
   document.getElementById('new-card-front').value = '';