feat: persiste chaves de IA no banco de dados e adiciona suporte ao Claude

manager/components/Exams.tsx

@@ -21,13 +21,11 @@ const Exams: React.FC<ExamsProps> = ({ data, updateData }) => {
   const { showAlert, showConfirm } = useDialog();
 
   const [showAIConfigModal, setShowAIConfigModal] = useState(false);
-  const [aiConfig, setAIConfig] = useState<{ provider: 'gemini' | 'openai'; apiKey: string }>(() => {
-    try {
-      const saved = localStorage.getItem('edumanager_ai_config');
-      return saved ? JSON.parse(saved) : { provider: 'gemini', apiKey: '' };
-    } catch {
-      return { provider: 'gemini', apiKey: '' };
-    }
+  const [aiForm, setAiForm] = useState({
+    activeProvider: data.aiConfig?.activeProvider || 'gemini',
+    geminiKey: data.aiConfig?.geminiKey ? '********' : '',
+    openaiKey: data.aiConfig?.openaiKey ? '********' : '',
+    claudeKey: data.aiConfig?.claudeKey ? '********' : ''
   });
 
   const [isGeneratingAI, setIsGeneratingAI] = useState(false);
@@ -35,12 +33,32 @@ const Exams: React.FC<ExamsProps> = ({ data, updateData }) => {
   const [aiQuantity, setAiQuantity] = useState(5);
   const [aiDifficulty, setAiDifficulty] = useState('medium');
 
-  const handleSaveAIConfig = (provider: 'gemini' | 'openai', apiKey: string) => {
-    const newConfig = { provider, apiKey };
-    setAIConfig(newConfig);
-    localStorage.setItem('edumanager_ai_config', JSON.stringify(newConfig));
+  const handleOpenAIConfig = () => {
+    setAiForm({
+      activeProvider: data.aiConfig?.activeProvider || 'gemini',
+      geminiKey: data.aiConfig?.geminiKey ? '********' : '',
+      openaiKey: data.aiConfig?.openaiKey ? '********' : '',
+      claudeKey: data.aiConfig?.claudeKey ? '********' : ''
+    });
+    setShowAIConfigModal(true);
+  };
+
+  const handleSaveAIConfig = async () => {
+    const newConfig = {
+      activeProvider: aiForm.activeProvider,
+      geminiKey: aiForm.geminiKey === '********' ? (data.aiConfig?.geminiKey || '') : aiForm.geminiKey,
+      openaiKey: aiForm.openaiKey === '********' ? (data.aiConfig?.openaiKey || '') : aiForm.openaiKey,
+      claudeKey: aiForm.claudeKey === '********' ? (data.aiConfig?.claudeKey || '') : aiForm.claudeKey
+    };
+
+    try {
+      updateData({ aiConfig: newConfig });
       setShowAIConfigModal(false);
-    showAlert('Sucesso', 'Configurações de IA salvas com sucesso!', 'success');
+      showAlert('Sucesso', 'Configurações de IA salvas com sucesso no banco de dados!', 'success');
+    } catch (e) {
+      console.error(e);
+      showAlert('Erro', 'Falha ao salvar configurações de IA.', 'error');
+    }
   };
 
   const [dbClasses, setDbClasses] = useState<any[]>(data?.classes || []);
@@ -250,10 +268,18 @@ const Exams: React.FC<ExamsProps> = ({ data, updateData }) => {
   };
 
   const handleGenerateQuestionsAI = async (quantityOverride?: number) => {
-    if (!aiConfig.apiKey) {
-      showAlert('IA não configurada', 'Por favor, configure sua API Key clicando no botão "Configurar IA" no cabeçalho da página.', 'warning');
+    const activeProvider = data.aiConfig?.activeProvider || 'gemini';
+    const hasKey = !!(
+      (activeProvider === 'gemini' && data.aiConfig?.geminiKey) ||
+      (activeProvider === 'openai' && data.aiConfig?.openaiKey) ||
+      (activeProvider === 'claude' && data.aiConfig?.claudeKey)
+    );
+
+    if (!hasKey) {
+      showAlert('IA não configurada', 'Por favor, configure a chave de API do seu provedor ativo clicando no botão "Configurar IA" no cabeçalho.', 'warning');
       return;
     }
+
     if (!aiTopic.trim()) {
       showAlert('Atenção', 'Informe o tema ou assunto das questões a serem geradas.', 'warning');
       return;
@@ -267,8 +293,6 @@ const Exams: React.FC<ExamsProps> = ({ data, updateData }) => {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({
-          apiKey: aiConfig.apiKey,
-          provider: aiConfig.provider,
           topic: aiTopic,
           quantity: qty,
           difficulty: aiDifficulty
@@ -310,10 +334,18 @@ const Exams: React.FC<ExamsProps> = ({ data, updateData }) => {
   };
 
   const handleRegenerateQuestionAI = async (qIndex: number) => {
-    if (!aiConfig.apiKey) {
-      showAlert('IA não configurada', 'Por favor, configure sua API Key clicando no botão "Configurar IA" no cabeçalho da página.', 'warning');
+    const activeProvider = data.aiConfig?.activeProvider || 'gemini';
+    const hasKey = !!(
+      (activeProvider === 'gemini' && data.aiConfig?.geminiKey) ||
+      (activeProvider === 'openai' && data.aiConfig?.openaiKey) ||
+      (activeProvider === 'claude' && data.aiConfig?.claudeKey)
+    );
+
+    if (!hasKey) {
+      showAlert('IA não configurada', 'Por favor, configure a chave de API do seu provedor ativo clicando no botão "Configurar IA" no cabeçalho.', 'warning');
       return;
     }
+
     const topic = aiTopic.trim() || editingExam?.title || 'Conhecimentos Gerais';
 
     setIsGeneratingAI(true);
@@ -322,8 +354,6 @@ const Exams: React.FC<ExamsProps> = ({ data, updateData }) => {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({
-          apiKey: aiConfig.apiKey,
-          provider: aiConfig.provider,
           topic: topic,
           quantity: 1,
           difficulty: aiDifficulty
@@ -519,6 +549,12 @@ const Exams: React.FC<ExamsProps> = ({ data, updateData }) => {
   };
 
   if (currentView === 'builder' && editingExam) {
+    const activeProvider = data.aiConfig?.activeProvider || 'gemini';
+    const hasAPIKey = !!(
+      (activeProvider === 'gemini' && data.aiConfig?.geminiKey) ||
+      (activeProvider === 'openai' && data.aiConfig?.openaiKey) ||
+      (activeProvider === 'claude' && data.aiConfig?.claudeKey)
+    );
     return (
       <div className="p-8 max-w-4xl mx-auto animate-in fade-in duration-500 pb-32">
         <div className="flex items-center gap-4 mb-8">
@@ -643,7 +679,7 @@ const Exams: React.FC<ExamsProps> = ({ data, updateData }) => {
               </h3>
               <p className="text-slate-500 text-sm mt-1 font-medium">Use nossa inteligência artificial para criar questões completas instantaneamente.</p>
             </div>
-            {!aiConfig.apiKey && (
+            {!hasAPIKey && (
               <span className="inline-flex items-center gap-1.5 px-3 py-1.5 bg-amber-50 text-amber-700 rounded-lg text-xs font-bold border border-amber-200">
                 <AlertTriangle size={14} /> IA não configurada
               </span>
@@ -688,10 +724,10 @@ const Exams: React.FC<ExamsProps> = ({ data, updateData }) => {
           </div>
 
           <div className="flex flex-col sm:flex-row gap-4 mt-6 pt-6 border-t border-slate-100 justify-end">
-            {!aiConfig.apiKey ? (
+            {!hasAPIKey ? (
               <button
                 type="button"
-                onClick={() => setShowAIConfigModal(true)}
+                onClick={handleOpenAIConfig}
                 className="flex items-center justify-center gap-2 px-6 py-3 bg-indigo-50 text-indigo-700 rounded-xl font-bold hover:bg-indigo-100 transition-all text-sm"
               >
                 <Sparkles size={18} />
@@ -924,7 +960,7 @@ const Exams: React.FC<ExamsProps> = ({ data, updateData }) => {
             />
           </div>
           <button
-            onClick={() => setShowAIConfigModal(true)}
+            onClick={handleOpenAIConfig}
             className="flex items-center justify-center gap-2 px-4 py-3 bg-slate-100 text-slate-700 rounded-xl font-bold hover:bg-slate-200 transition-all border border-slate-200"
             title="Configurar Chaves de IA"
           >
@@ -1154,41 +1190,63 @@ const Exams: React.FC<ExamsProps> = ({ data, updateData }) => {
 
             <div className="space-y-5">
               <div>
-                <label className="block text-sm font-bold text-slate-700 mb-2">Provedor de IA</label>
+                <label className="block text-sm font-bold text-slate-700 mb-2">Provedor de IA Ativo</label>
                 <select
-                  value={aiConfig.provider}
-                  onChange={e => setAIConfig({ ...aiConfig, provider: e.target.value as any })}
-                  className="w-full px-4 py-3 bg-slate-50 border border-slate-200 rounded-xl focus:ring-2 focus:ring-indigo-500 focus:outline-none transition-all font-bold text-slate-700"
+                  value={aiForm.activeProvider}
+                  onChange={e => setAiForm({ ...aiForm, activeProvider: e.target.value as any })}
+                  className="w-full px-4 py-3 bg-slate-50 border border-slate-200 rounded-xl focus:ring-2 focus:ring-indigo-500 focus:outline-none transition-all font-bold text-slate-700 text-sm"
                 >
-                  <option value="gemini">Google Gemini (Recomendado)</option>
+                  <option value="gemini">Google Gemini</option>
                   <option value="openai">OpenAI (ChatGPT)</option>
+                  <option value="claude">Anthropic Claude</option>
                 </select>
               </div>
 
               <div>
-                <label className="block text-sm font-bold text-slate-700 mb-2">Chave de API (API Key)</label>
+                <label className="block text-sm font-bold text-slate-700 mb-2">Chave Google Gemini</label>
                 <input
                   type="password"
-                  value={aiConfig.apiKey}
-                  onChange={e => setAIConfig({ ...aiConfig, apiKey: e.target.value })}
-                  placeholder={aiConfig.provider === 'gemini' ? 'AIzaSy...' : 'sk-...'}
-                  className="w-full px-4 py-3 bg-slate-50 border border-slate-200 rounded-xl focus:ring-2 focus:ring-indigo-500 focus:outline-none transition-all font-medium text-slate-800"
+                  value={aiForm.geminiKey}
+                  onChange={e => setAiForm({ ...aiForm, geminiKey: e.target.value })}
+                  placeholder="Cole a chave do Gemini (AIzaSy...)"
+                  className="w-full px-4 py-3 bg-slate-50 border border-slate-200 rounded-xl focus:ring-2 focus:ring-indigo-500 focus:outline-none transition-all font-medium text-slate-800 text-sm"
                 />
-                <p className="text-[11px] text-slate-500 mt-2 font-medium">
-                  Sua chave é armazenada de forma segura apenas localmente no seu navegador.
-                </p>
               </div>
 
-              <div className="flex gap-3 pt-4">
+              <div>
+                <label className="block text-sm font-bold text-slate-700 mb-2">Chave OpenAI GPT</label>
+                <input
+                  type="password"
+                  value={aiForm.openaiKey}
+                  onChange={e => setAiForm({ ...aiForm, openaiKey: e.target.value })}
+                  placeholder="Cole a chave da OpenAI (sk-...)"
+                  className="w-full px-4 py-3 bg-slate-50 border border-slate-200 rounded-xl focus:ring-2 focus:ring-indigo-500 focus:outline-none transition-all font-medium text-slate-800 text-sm"
+                />
+              </div>
+
+              <div>
+                <label className="block text-sm font-bold text-slate-700 mb-2">Chave Anthropic Claude</label>
+                <input
+                  type="password"
+                  value={aiForm.claudeKey}
+                  onChange={e => setAiForm({ ...aiForm, claudeKey: e.target.value })}
+                  placeholder="Cole a chave do Claude (sk-ant-...)"
+                  className="w-full px-4 py-3 bg-slate-50 border border-slate-200 rounded-xl focus:ring-2 focus:ring-indigo-500 focus:outline-none transition-all font-medium text-slate-800 text-sm"
+                />
+              </div>
+
+              <div className="flex gap-3 pt-4 border-t border-slate-100">
                 <button
+                  type="button"
                   onClick={() => setShowAIConfigModal(false)}
-                  className="flex-1 px-6 py-3 bg-slate-100 text-slate-600 rounded-xl font-bold hover:bg-slate-200 transition-all"
+                  className="flex-1 px-6 py-3 bg-slate-100 text-slate-600 rounded-xl font-bold hover:bg-slate-200 transition-all text-sm"
                 >
                   Cancelar
                 </button>
                 <button
-                  onClick={() => handleSaveAIConfig(aiConfig.provider, aiConfig.apiKey)}
-                  className="flex-1 px-6 py-3 bg-indigo-600 text-white rounded-xl font-bold hover:bg-indigo-700 transition-all shadow-lg shadow-indigo-100"
+                  type="button"
+                  onClick={handleSaveAIConfig}
+                  className="flex-1 px-6 py-3 bg-indigo-600 text-white rounded-xl font-bold hover:bg-indigo-700 transition-all shadow-lg shadow-indigo-100 text-sm"
                 >
                   Salvar
                 </button>

manager/server.selfhosted.js

@@ -1261,11 +1261,8 @@ app.post('/api/provas/:id/questoes', async (req, res) => {
 });
 
 app.post('/api/ai/generate-questions', async (req, res) => {
-  const { apiKey, provider, topic, quantity, difficulty } = req.body;
+  const { topic, quantity, difficulty } = req.body;
 
-  if (!apiKey) {
-    return res.status(400).json({ error: 'API Key não informada' });
-  }
   if (!topic) {
     return res.status(400).json({ error: 'Tema não informado' });
   }
@@ -1273,6 +1270,19 @@ app.post('/api/ai/generate-questions', async (req, res) => {
   const limitQty = Math.min(Math.max(Number(quantity) || 1, 1), 20);
 
   try {
+    const appData = await getSchoolData();
+    const aiConfig = appData.aiConfig || {};
+    const provider = aiConfig.activeProvider || 'gemini';
+    
+    let apiKey = '';
+    if (provider === 'gemini') apiKey = aiConfig.geminiKey;
+    else if (provider === 'openai') apiKey = aiConfig.openaiKey;
+    else if (provider === 'claude') apiKey = aiConfig.claudeKey;
+
+    if (!apiKey) {
+      return res.status(400).json({ error: `Chave de API não configurada para o provedor ${provider.toUpperCase()} no painel da escola.` });
+    }
+
     if (provider === 'openai') {
       const payload = {
         model: 'gpt-4o-mini',
@@ -1329,6 +1339,64 @@ Exemplo de formato esperado:
       const questions = parsed.questions || parsed || [];
       return res.json({ questions });
 
+    } else if (provider === 'claude') {
+      const payload = {
+        model: 'claude-3-5-sonnet-20241022',
+        max_tokens: 4096,
+        system: `Você é um gerador de questões escolares de múltipla escolha para provas de alunos.
+Retorne APENAS um array de objetos JSON estruturado (sem blocos de código markdown como \`\`\`json ou texto explicativo extra).
+Cada questão do array deve conter obrigatoriamente:
+- "text": o enunciado da questão.
+- "options": um array com exatamente 4 opções de resposta.
+- "correctOptionIndex": o índice da opção correta (de 0 a 3).
+
+Exemplo de formato esperado:
+[
+  {
+    "text": "Qual é a principal função do processador?",
+    "options": ["Processar dados", "Armazenar arquivos", "Exibir imagens", "Conectar à internet"],
+    "correctOptionIndex": 0
+  }
+]`,
+        messages: [
+          {
+            role: 'user',
+            content: `Gere exatamente ${limitQty} questões escolares de múltipla escolha sobre o tema "${topic}" com nível de dificuldade "${difficulty}" em Português do Brasil.`
+          }
+        ]
+      };
+
+      const response = await fetch('https://api.anthropic.com/v1/messages', {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+          'x-api-key': apiKey,
+          'anthropic-version': '2023-06-01'
+        },
+        body: JSON.stringify(payload)
+      });
+
+      if (!response.ok) {
+        const errorText = await response.text();
+        throw new Error(`Claude API retornou erro: ${response.status} - ${errorText}`);
+      }
+
+      const resJson = await response.json();
+      let contentText = resJson.content?.[0]?.text || '';
+      contentText = contentText.trim();
+      if (contentText.startsWith('```json')) {
+        contentText = contentText.substring(7);
+      } else if (contentText.startsWith('```')) {
+        contentText = contentText.substring(3);
+      }
+      if (contentText.endsWith('```')) {
+        contentText = contentText.substring(0, contentText.length - 3);
+      }
+      contentText = contentText.trim();
+
+      const questions = JSON.parse(contentText);
+      return res.json({ questions });
+
     } else {
       // Provedor padrão: Google Gemini
       const geminiUrl = `https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash:generateContent?key=${apiKey}`;

manager/types.ts

@@ -297,6 +297,13 @@ export interface PreMatriculaInscricao {
   createdAt: string;
 }
 
+export interface AIConfig {
+  activeProvider: 'gemini' | 'openai' | 'claude';
+  geminiKey?: string;
+  openaiKey?: string;
+  claudeKey?: string;
+}
+
 export interface SchoolData {
   users: User[];
   courses: Course[];
@@ -327,6 +334,7 @@ export interface SchoolData {
     instanceName: string;
     apiKey: string;
   };
+  aiConfig?: AIConfig;
   messageTemplates?: {
     boletoGerado: string;
     pagamentoConfirmado: string;