feat: implement AI-driven learning content generation service and interactive student dashboard

src/components/admin/ContentManager.jsx

@@ -34,7 +34,7 @@ const ContentManager = () => {
   const handleRegenerate = async (topic) => {
     setTopicState(topic.id, { loading: 'regenerating', error: null, success: null });
     try {
-      await generateLearningContent(topic, true);
+      await generateLearningContent(topic, true, 'all');
       setTopicState(topic.id, { loading: null, success: 'Content regenerated.' });
       refresh();
     } catch (e) {

src/components/ui/LearningContentViewer.jsx

@@ -20,8 +20,17 @@ const MODES = [
   { key: 'infographic',  icon: BarChart2,    label: 'Infographic' },
 ];
 
-const LearningContentViewer = ({ content, topic, initialMode = 'article' }) => {
-  const [activeMode, setActiveMode] = useState(initialMode);
+const LearningContentViewer = ({ content, topic, initialMode = 'article', onGenerate, isLoading }) => {
+  const populatedModes = MODES.filter(m => m.key === 'podcast' ? !!content?.podcastScript : !!content?.[m.key]);
+  const defaultMode = populatedModes.length > 0 ? populatedModes[0].key : initialMode;
+  const [activeMode, setActiveMode] = useState(defaultMode);
+
+  // If content populates while we are on an empty tab, keep the tab active
+  useEffect(() => {
+    if (content && populatedModes.length === 1 && !populatedModes.find(m => m.key === activeMode)) {
+      setActiveMode(populatedModes[0].key);
+    }
+  }, [content]);
 
   if (!content || !topic) return null;
 
@@ -54,10 +63,26 @@ const LearningContentViewer = ({ content, topic, initialMode = 'article' }) => {
           exit={{ opacity: 0, y: -10 }}
           transition={{ duration: 0.2 }}
         >
-          {activeMode === 'article'     && <ArticleView content={content.article} />}
-          {activeMode === 'slides'      && <SlidesView slides={content.slides} />}
-          {activeMode === 'podcast'     && <PodcastView script={content.podcastScript} topicLabel={topic.label} />}
-          {activeMode === 'infographic' && <InfographicView data={content.infographic} topicLabel={topic.label} />}
+          {(() => {
+            const isPopulated = activeMode === 'podcast' ? !!content?.podcastScript : !!content?.[activeMode];
+            if (!isPopulated) {
+              return (
+                <Card className="border border-bg-warm text-center py-16">
+                  <p className="text-fg-muted mb-6">This content has not been generated yet.</p>
+                  {onGenerate && (
+                    <Button onClick={() => onGenerate(activeMode)} disabled={isLoading}>
+                      Generate {MODES.find(m => m.key === activeMode)?.label}
+                    </Button>
+                  )}
+                </Card>
+              );
+            }
+            if (activeMode === 'article') return <ArticleView content={content.article} />;
+            if (activeMode === 'slides') return <SlidesView slides={content.slides} />;
+            if (activeMode === 'podcast') return <PodcastView script={content.podcastScript} topicLabel={topic.label} />;
+            if (activeMode === 'infographic') return <InfographicView data={content.infographic} topicLabel={topic.label} />;
+            return null;
+          })()}
         </motion.div>
       </AnimatePresence>
     </div>

src/lib/learningService.js

@@ -6,7 +6,7 @@ You write training material for employees based on knowledge topics.
 Always write in clear, professional English.
 ALWAYS return valid JSON only — no markdown code blocks, no extra text.`;
 
-const CONTENT_SCHEMA = `{
+const CONTENT_SCHEMA_ARTICLE = `{
   "article": {
     "title": "Article title",
     "intro": "Short intro of 1-2 sentences",
@@ -14,11 +14,20 @@ const CONTENT_SCHEMA = `{
       { "heading": "Section title", "body": "Section text of at least 3 sentences." }
     ],
     "keyTakeaways": ["Takeaway 1", "Takeaway 2", "Takeaway 3"]
-  },
+  }
+}`;
+
+const CONTENT_SCHEMA_SLIDES = `{
   "slides": [
     { "title": "Slide title", "bullets": ["Point 1", "Point 2", "Point 3"], "speakerNote": "Speaker note for this slide." }
-  ],
-  "podcastScript": "A natural spoken script of approx. 300 words summarizing the topic as a podcast episode.",
+  ]
+}`;
+
+const CONTENT_SCHEMA_PODCAST = `{
+  "podcastScript": "A natural spoken script of approx. 300 words summarizing the topic as a podcast episode."
+}`;
+
+const CONTENT_SCHEMA_INFOGRAPHIC = `{
   "infographic": {
     "headline": "A short, punchy headline summarizing the topic (max 8 words)",
     "tagline": "A subtitle of max 15 words",
@@ -33,6 +42,13 @@ const CONTENT_SCHEMA = `{
   }
 }`;
 
+const CONTENT_SCHEMA_ALL = `{
+  "article": ${CONTENT_SCHEMA_ARTICLE.replace(/^\{|\}$/g, '').trim()},
+  "slides": ${CONTENT_SCHEMA_SLIDES.replace(/^\{|\}$/g, '').trim()},
+  "podcastScript": "A natural spoken script of approx. 300 words summarizing the topic as a podcast episode.",
+  "infographic": ${CONTENT_SCHEMA_INFOGRAPHIC.replace(/^\{|\}$/g, '').trim()}
+}`;
+
 export async function getAssignedTopic(userId, weekNumber) {
   const topics = await db.getTopics();
   if (!topics || topics.length === 0) return null;
@@ -62,38 +78,64 @@ export async function getAllGeneratedContent() {
   return results.filter(item => item.hasContent);
 }
 
-export async function generateLearningContent(topic, force = false) {
+export async function generateLearningContent(topic, force = false, selectedType = 'article') {
+  let cached = null;
   if (!force) {
-    const cached = await db.getContent(topic.id);
+    cached = await db.getContent(topic.id);
     if (cached) {
-      console.log(`[Learn] Cache hit for topic: ${topic.id}`);
+      if (selectedType === 'podcast' && cached.podcastScript) {
+        console.log(`[Learn] Cache hit for topic: ${topic.id} (podcast)`);
+        return cached;
+      } else if (selectedType !== 'podcast' && cached[selectedType]) {
+        console.log(`[Learn] Cache hit for topic: ${topic.id} (${selectedType})`);
         return cached;
       }
     }
+  }
 
-  const prompt = `Generate a complete learning module for the following topic:
+  let schema = '';
+  let instructions = '';
+  if (selectedType === 'all') {
+    schema = CONTENT_SCHEMA_ALL;
+    instructions = 'Provide at least 3 article sections, 4 slides, 3 stats, and 3-5 steps in the infographic.';
+  } else if (selectedType === 'article') {
+    schema = CONTENT_SCHEMA_ARTICLE;
+    instructions = 'Provide at least 3 article sections.';
+  } else if (selectedType === 'slides') {
+    schema = CONTENT_SCHEMA_SLIDES;
+    instructions = 'Provide at least 4 slides.';
+  } else if (selectedType === 'podcast') {
+    schema = CONTENT_SCHEMA_PODCAST;
+    instructions = 'Provide a natural spoken script.';
+  } else if (selectedType === 'infographic') {
+    schema = CONTENT_SCHEMA_INFOGRAPHIC;
+    instructions = 'Provide at least 3 stats, and 3-5 steps in the infographic.';
+  }
+
+  const prompt = `Generate a learning module piece for the following topic:
 
 Label: ${topic.label}
 Type: ${topic.type}
 Description: ${topic.description}
 
 Return ONLY a JSON object with the following structure:
-${CONTENT_SCHEMA}
+${schema}
 
-Provide at least 3 article sections, 4 slides, 3 stats, and 3-5 steps in the infographic.`;
+${instructions}`;
 
   const responseText = await anthropicApi.generateContent(CONTENT_GENERATION_SYSTEM, prompt);
 
-  let content;
+  let newContent;
   try {
     const jsonMatch = responseText.match(/\{[\s\S]*\}/);
-    content = JSON.parse(jsonMatch ? jsonMatch[0] : responseText);
+    newContent = JSON.parse(jsonMatch ? jsonMatch[0] : responseText);
   } catch (e) {
     throw new Error('AI could not generate valid learning content. Please try again.');
   }
 
-  await db.setContent(topic.id, content);
-  return content;
+  const mergedContent = { ...(cached || {}), ...newContent };
+  await db.setContent(topic.id, mergedContent);
+  return mergedContent;
 }
 
 export async function refineLearningContent(topic, refinementInstruction) {

src/pages/Leren.jsx

@@ -68,12 +68,12 @@ const Leren = () => {
     }
   };
 
-  const loadContent = async () => {
+  const loadContent = async (selectedType = 'article') => {
     if (!activeTopic) return;
     setIsLoading(true);
     setError(null);
     try {
-      const generated = await generateLearningContent(activeTopic);
+      const generated = await generateLearningContent(activeTopic, false, selectedType);
       setContent(generated);
     } catch (e) {
       setError(e.message);
@@ -220,8 +220,13 @@ const Leren = () => {
         {!content && !isLoading && (
           <Card className="border border-bg-warm text-center py-16">
             <BookOpen size={48} className="mx-auto text-teal/30 mb-4" />
-            <p className="text-fg-muted mb-6">Click the button to generate personalized AI learning content for this topic.</p>
-            <Button onClick={loadContent}>Generate Learning Content</Button>
+            <p className="text-fg-muted mb-6">Choose how you want to learn this topic.</p>
+            <div className="flex flex-wrap justify-center gap-4">
+              <Button onClick={() => loadContent('article')}>Article</Button>
+              <Button onClick={() => loadContent('slides')}>Slides</Button>
+              <Button onClick={() => loadContent('podcast')}>Podcast</Button>
+              <Button onClick={() => loadContent('infographic')}>Infographic</Button>
+            </div>
           </Card>
         )}
 
@@ -241,7 +246,7 @@ const Leren = () => {
           </Card>
         )}
 
-        {content && <LearningContentViewer content={content} topic={activeTopic} />}
+        {content && <LearningContentViewer content={content} topic={activeTopic} onGenerate={loadContent} isLoading={isLoading} />}
 
         {content && (
           <div className="mt-10 pt-6 border-t border-bg-warm flex justify-end">

src/store/AppContext.jsx

@@ -6,7 +6,7 @@ const AppContext = createContext();
 const initialState = {
   currentUser: null,
   users: [],
-  weekNumber: 1,
+  weekNumber: getWeekNumber(new Date()),
   isLoading: true
 };
 
@@ -16,7 +16,7 @@ function appReducer(state, action) {
       return {
         ...state,
         users: action.payload.users,
-        weekNumber: action.payload.weekNumber,
+        weekNumber: action.payload.weekNumber || state.weekNumber,
         isLoading: false
       };
     case 'LOGIN':
@@ -30,6 +30,13 @@ function appReducer(state, action) {
   }
 }
 
+function getWeekNumber(d) {
+  d = new Date(Date.UTC(d.getFullYear(), d.getMonth(), d.getDate()));
+  d.setUTCDate(d.getUTCDate() + 4 - (d.getUTCDay()||7));
+  const yearStart = new Date(Date.UTC(d.getUTCFullYear(),0,1));
+  return Math.ceil(( ( (d - yearStart) / 86400000) + 1)/7);
+}
+
 export function AppProvider({ children }) {
   const [state, dispatch] = useReducer(appReducer, initialState);
 
@@ -47,7 +54,7 @@ export function AppProvider({ children }) {
         }
       }
 
-      const storedWeek = Number(await db.getSetting('admin:current_week', 1));
+      const storedWeek = getWeekNumber(new Date());
 
       const sessionUserId = sessionStorage.getItem('respellion_session');
       if (sessionUserId) {