Fix: Prevent recurring quiz title suffixes and improve dashboard widget loading

backend/app/modules/quiz/router.py

@@ -189,9 +189,9 @@ async def save_score(
             
             # --- Remediation Logic ---
             # 1. If this IS a remediation quiz (detected by topic), close old pending errors
-            # Robust check: case insensitive, check for 'remedia'
+            # Robust check: case insensitive, check for 'remedia' or 'correct'
             topic_lower = score_data.topic.lower()
-            if "remedia" in topic_lower:
+            if "remedia" in topic_lower or "correct" in topic_lower:
                 # Mark pending items for this revision/topic as REVIEWED
                 # We assume that taking the quiz counts as reviewing them.
                 # If they fail again, the code below (step 2) will add new items.
@@ -531,9 +531,9 @@ async def generate_remediation_quiz(
         
         # Force topic to indicate remediation/revision for reliable detection downstream
         topic_lower = quiz_content.get("topic", "").lower()
-        if "remedia" not in topic_lower and "révision" not in topic_lower:
+        if "remedia" not in topic_lower and "correct" not in topic_lower:
             original_topic = quiz_content.get("topic", "Révision")
-            quiz_content["topic"] = f"{original_topic} (Révision)"
+            quiz_content["topic"] = f"{original_topic} (Correction)"
 
         # Inject revision_id if present so it persists through the quiz lifecycle
         if revision_id:
@@ -572,7 +572,7 @@ async def get_mastery_stats(
         for s in scores:
             if not s.topic: continue
             # Normalize topic
-            clean_topic = s.topic.replace(" (Remediation)", "").replace(" (Remédiation)", "").replace(" (Révision)", "").strip()
+            clean_topic = s.topic.replace(" (Remediation)", "").replace(" (Correction)", "").replace(" (Remédiation)", "").replace(" (Révision)", "").strip()
             
             if clean_topic not in topic_map:
                 topic_map[clean_topic] = []
@@ -595,7 +595,7 @@ async def get_mastery_stats(
             if not e.topic: continue
             # Also clean topic for errors if needed, or rely on exact match? 
             # Ideally errors should also be grouped by clean topic.
-            t_key = e.topic.replace(" (Remediation)", "").replace(" (Remédiation)", "").replace(" (Révision)", "").strip()
+            t_key = e.topic.replace(" (Remediation)", "").replace(" (Correction)", "").replace(" (Remédiation)", "").replace(" (Révision)", "").strip()
             error_counts[t_key] = error_counts.get(t_key, 0) + 1
 
         for topic, topic_scores in topic_map.items():

backend/app/modules/quiz/service.py

@@ -138,7 +138,11 @@ async def generate_remediation_quiz_service(context_items: List[Dict[str, Any]],
     
     # Extract topics from context or questions to guide the LLM
     # This prevents it from thinking the topic is "Remediation"
-    topics_context = list(set([item['context'] or "General" for item in context_items if item['context']]))
+    def clean_topic_name(t):
+        if not t: return "General"
+        return t.replace(" (Remediation)", "").replace(" (Correction)", "").replace(" (Remédiation)", "").replace(" (Révision)", "").strip()
+
+    topics_context = list(set([clean_topic_name(item['context']) for item in context_items if item['context']]))
     joined_topics = ", ".join(topics_context)
 
     errors_desc = "\n".join([
@@ -163,7 +167,7 @@ async def generate_remediation_quiz_service(context_items: List[Dict[str, Any]],
     2. Identify the underlying concept for EACH failed question.
     3. Generate a NEW multiple-choice question to test that SAME concept, but phrased differently or using a different example.
     4. You MUST generate exactly one new question for every failed question provided in the input list. If there are 10 errors, generate 10 new questions.
-    5. The "topic" field in the JSON should be: "{joined_topics} (Remediation)".
+    5. The "topic" field in the JSON should be: "{joined_topics} (Correction)".
     6. **CRITICAL**: The questions must be about the SUBJECT MATTER ({joined_topics}). Do NOT generate questions about "remediation", "learning strategies", or "translation".
     7. **Language**: output MUST be in French.
     8. Provide a clear, helpful "explanation" for the correct answer.

frontend/src/features/dashboard/RecentRevisionsWidget.tsx

@@ -3,7 +3,7 @@ import { useNavigate } from 'react-router-dom';
 import { Play, BookOpen, ArrowRight, Book, AlertTriangle, X, Trash2, Sparkles, Lightbulb, Brain } from 'lucide-react';
 import { useAuth } from '../../stores/useAuth';
 import { api } from '../../lib/api';
-import { useEffect, useState } from 'react';
+import React, { useEffect, useState } from 'react';
 import { Skeleton } from '../../components/ui/Skeleton';
 import { AnimatePresence, motion } from 'framer-motion';
 
@@ -51,18 +51,24 @@ export const RecentRevisionsWidget = () => {
     });
 
     useEffect(() => {
-        if (!activeLearner) return;
+        if (!activeLearner?.id) {
+            setLoading(false);
+            return;
+        }
 
-        api.get<any>(`/quiz/stats/activity?learner_id=${activeLearner.id}`)
+        setLoading(true);
+        api.get<any>('/quiz/stats/activity', { params: { learner_id: activeLearner.id } })
             .then(res => {
                 const allRevisions = res.data.history
                     .flatMap((day: any) => day.items)
                     .filter((item: any) => item.type === 'REVISION');
                 setRevisions(allRevisions);
-                setLoading(false);
             })
-            .catch(() => setLoading(false));
-    }, [activeLearner]);
+            .catch((err) => {
+                console.error("Error fetching activity:", err);
+            })
+            .finally(() => setLoading(false));
+    }, [activeLearner?.id]);
 
     const getSubjectStyle = (subject?: string) => {
         if (subject === 'Mathématiques') return { color: 'text-blue-500', bg: 'bg-blue-50', icon: <BookOpen className="w-5 h-5" /> };
@@ -129,8 +135,30 @@ export const RecentRevisionsWidget = () => {
         }
     };
 
+    const renderEmptyState = () => (
+        <div className="bg-white dark:bg-slate-800 rounded-[2rem] p-8 shadow-xl shadow-indigo-100/20 dark:shadow-none border border-slate-100 dark:border-slate-700 text-center">
+            <div className="w-16 h-16 bg-slate-50 dark:bg-slate-700/50 rounded-2xl flex items-center justify-center mx-auto mb-4 text-3xl">
+                📚
+            </div>
+            <h3 className="font-black text-lg text-slate-800 dark:text-white mb-2">
+                Aucun cours récent
+            </h3>
+            <p className="text-slate-400 text-sm font-medium mb-6">
+                Commencez une révision pour la voir apparaître ici !
+            </p>
+            <motion.button
+                whileHover={{ scale: 1.05 }}
+                whileTap={{ scale: 0.95 }}
+                onClick={() => navigate('/upload')}
+                className="px-6 py-3 bg-indigo-600 text-white font-bold rounded-xl shadow-lg shadow-indigo-200 hover:bg-indigo-700 transition-all"
+            >
+                Ajouter un cours
+            </motion.button>
+        </div>
+    );
+
     if (loading) return <Skeleton className="h-48 w-full rounded-[2rem]" />;
-    if (revisions.length === 0) return null;
+    if (revisions.length === 0) return renderEmptyState();
 
     return (
         <>