From 639f6209486eef405acb8a753494d8402b3c3de0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=84=AD=E6=B2=9B=E8=BB=92?= <jettcheng1018@gmail.com>
Date: Thu, 25 Sep 2025 22:30:37 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=BE=A9=E5=8D=A1=E7=89=87?=
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- 移除ExtendedFlashcard接口中冗余的difficulty屬性
- 所有CEFR顯示統一使用difficultyLevel屬性
- 確保卡片右上角正確顯示CEFR等級 (A1, A2, B1, etc.)
- 完善接口註釋，避免屬性混淆

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
---
 frontend/app/learn/page.tsx | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/frontend/app/learn/page.tsx b/frontend/app/learn/page.tsx
index 4b85816..a129617 100644
--- a/frontend/app/learn/page.tsx
+++ b/frontend/app/learn/page.tsx
@@ -13,17 +13,17 @@ import { calculateCurrentMastery, getReviewTypesByDifficulty } from '@/lib/utils
 
 // 擴展的Flashcard接口，包含智能複習需要的欄位
 interface ExtendedFlashcard extends Omit<Flashcard, 'nextReviewDate'> {
-  userLevel?: number;        // 學習者程度 (1-100)
-  wordLevel?: number;        // 詞彙難度 (1-100)
+  userLevel?: number;        // 學習者程度 (1-100) - 向後兼容
+  wordLevel?: number;        // 詞彙難度 (1-100) - 向後兼容
   nextReviewDate?: string;   // 下次復習日期 (可選)
   currentInterval?: number;  // 當前間隔天數
   isOverdue?: boolean;       // 是否逾期
   overdueDays?: number;      // 逾期天數
   baseMasteryLevel?: number; // 基礎熟悉度
   lastReviewDate?: string;   // 最後復習日期
-  synonyms?: string[];       // 同義詞 (暫時保留mock格式)
-  difficulty?: string;       // CEFR等級 (暫時保留mock格式)
-  exampleImage?: string;     // 例句圖片 (暫時保留mock格式)
+  synonyms?: string[];       // 同義詞 (向後兼容)
+  exampleImage?: string;     // 例句圖片 (向後兼容)
+  // 注意：difficultyLevel已在基礎Flashcard接口中定義
 }
 
 export default function LearnPage() {
@@ -1042,7 +1042,7 @@ export default function LearnPage() {
                   詞彙選擇
                 </h2>
                 <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-                  {currentCard.difficulty}
+                  {currentCard.difficultyLevel}
                 </span>
               </div>
 
@@ -1155,7 +1155,7 @@ export default function LearnPage() {
                   例句填空
                 </h2>
                 <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-                  {currentCard.difficulty}
+                  {currentCard.difficultyLevel}
                 </span>
               </div>
 
@@ -1324,7 +1324,7 @@ export default function LearnPage() {
                   詞彙聽力 (暫時不上線)
                 </h2>
                 <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-                  {currentCard.difficulty}
+                  {currentCard.difficultyLevel}
                 </span>
               </div>
 
@@ -1435,7 +1435,7 @@ export default function LearnPage() {
                   例句口說
                 </h2>
                 <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-                  {currentCard.difficulty}
+                  {currentCard.difficultyLevel}
                 </span>
               </div>
 
@@ -1504,7 +1504,7 @@ export default function LearnPage() {
                   例句聽力
                 </h2>
                 <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-                  {currentCard.difficulty}
+                  {currentCard.difficultyLevel}
                 </span>
               </div>
 
@@ -1613,7 +1613,7 @@ export default function LearnPage() {
                   例句重組
                 </h2>
                 <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-                  {currentCard.difficulty}
+                  {currentCard.difficultyLevel}
                 </span>
               </div>