v4: conversational teacher with context memory

script.js

@@ -275,6 +275,7 @@ const levelsData = {
 // Текущее состояние
 let currentLevel = null;
 let chatSessionId = null;
+let chatHistory = []; // История переписки для контекста
 
 // DOM элементы
 const levelsSection = document.getElementById('levels-section');
@@ -438,6 +439,12 @@ function toggleChat() {
   teacherChat.classList.toggle('hidden');
   if (!teacherChat.classList.contains('hidden')) {
     chatInput.focus();
+    // Если чат открыли впервые - приветствуем
+    if (chatHistory.length === 0) {
+      setTimeout(() => {
+        addMessage('Hi there! 👋 I\'m your English teacher! Let\'s have a conversation! Tell me about yourself - where are you from?', 'teacher');
+      }, 500);
+    }
   }
 }
 
@@ -448,26 +455,39 @@ async function sendMessage() {
   // Добавляем сообщение студента
   addMessage(text, 'student');
   chatInput.value = '';
+  sendBtn.disabled = true;
 
   // Показываем индикатор набора
   showTypingIndicator();
 
   try {
+    // Небольшая задержка для естественности
+    await new Promise(resolve => setTimeout(resolve, 600));
+    
     // Получаем ответ от ИИ
     const response = await askTeacher(text);
     hideTypingIndicator();
     addMessage(response, 'teacher');
   } catch (error) {
     hideTypingIndicator();
-    addMessage('Извини, я временно недоступен. Попробуй ещё раз!', 'teacher');
+    addMessage('Hmm, I had trouble processing that. Try rephrasing? 😊', 'teacher');
     console.error('Teacher error:', error);
   }
+  
+  sendBtn.disabled = false;
+  chatInput.focus();
 }
 
 function addMessage(text, type) {
   const messageDiv = document.createElement('div');
   messageDiv.className = `message ${type}`;
-  messageDiv.innerHTML = `<div class="message-bubble">${text}</div>`;
+  
+  // Добавляем аватарки
+  const avatar = type === 'teacher' ? '👨‍🏫' : '👤';
+  messageDiv.innerHTML = `
+    <div class="message-avatar">${avatar}</div>
+    <div class="message-bubble">${text}</div>
+  `;
   chatMessages.appendChild(messageDiv);
   chatMessages.scrollTop = chatMessages.scrollHeight;
 }
@@ -494,135 +514,295 @@ function hideTypingIndicator() {
   if (typing) typing.remove();
 }
 
-// Готовые ответы для статической версии (без сервера)
+// Готовые ответы для статической версии (без сервера) - РАЗГОВОРНЫЙ РЕЖИМ
 const teacherResponses = {
   greetings: {
-    keywords: ['hello', 'hi', 'привет', 'здравствуй', 'good morning', 'good afternoon'],
+    keywords: ['hello', 'hi', 'привет', 'здравствуй', 'good morning', 'good afternoon', 'hey'],
     answers: [
-      'Hello! Great to see you! How can I help you with English today?',
+      'Hello! Great to see you! 😊 How are you today? Tell me in English!',
-      'Hi there! Ready to practice English? What would you like to work on?',
+      'Hi there! Ready to practice English? What have you been doing lately?',
-      'Hello! I\'m your English teacher. Ask me anything about grammar, vocabulary, or let\'s just chat!'
+      'Hello! I\'m your English teacher. Nice to meet you! What\'s your name?',
-    ]
+      'Hey! How\'s it going? Did you do anything interesting today?'
+    ],
+    followUp: 'Tell me about yourself! Where are you from? What do you like to do?'
   },
   thanks: {
-    keywords: ['thank', 'спасибо', 'thanks'],
+    keywords: ['thank', 'спасибо', 'thanks', 'благодарю'],
     answers: [
-      'You\'re welcome! Keep up the good work! 👍',
+      'You\'re welcome! 😊 You\'re making great progress! Keep it up!',
-      'Anytime! That\'s what I\'m here for! 😊',
+      'Anytime! That\'s what I\'m here for! Do you have more questions?',
-      'No problem! Feel free to ask more questions!'
+      'No problem! I\'m happy to help! What else would you like to learn?'
+    ]
+  },
+  howAreYou: {
+    keywords: ['how are you', 'как дела', 'how\'s it going', 'how are things'],
+    answers: [
+      'I\'m great, thank you for asking! 😊 I\'m here helping students learn English. How about you? How was your day?',
+      'Doing well! Excited to practice English with you! What about you? Anything new?'
+    ]
+  },
+  name: {
+    keywords: ['what is your name', 'как тебя зовут', 'your name', 'кто ты'],
+    answers: [
+      'I\'m your virtual English teacher! You can call me Teacher. 😊 What\'s YOUR name?',
+      'I\'m your English learning companion! But I\'d love to know YOUR name. What should I call you?'
     ]
   },
   help: {
-    keywords: ['help', 'помощь', 'помоги', 'explain', 'объясни'],
+    keywords: ['help', 'помощь', 'помоги', 'explain', 'объясни', 'assist'],
     answers: [
-      'I can help you with: grammar rules, vocabulary, pronunciation tips, or just conversation practice. What do you need?',
+      'I\'d love to help! 🎯 I can: check your sentences, explain grammar, teach new words, or just chat. What do you prefer?',
-      'Sure! I can explain grammar, check your sentences, or suggest words. What topic interests you?'
+      'Of course! What\'s troubling you? Grammar? Vocabulary? Or maybe you want conversation practice?'
     ]
   },
   grammar: {
     keywords: ['grammar', 'грамматик', 'rule', 'правило', 'tense', 'время'],
     answers: [
-      'Grammar is important! The key is practice. Start with Present Simple - it\'s the most common tense. Example: "I work every day." Want me to explain more?',
+      'Grammar time! 📚 Let me explain simply. Which tense confuses you? Present, Past, or Future?',
-      'English grammar has 12 tenses, but you only need 5-6 for daily conversation. Which tense would you like to learn?'
+      'Great question! Grammar is like puzzle pieces. Once you get the pattern, it clicks! What specifically?'
     ]
   },
   vocabulary: {
-    keywords: ['word', 'слово', 'vocabulary', 'translate', 'перевод', 'meaning'],
+    keywords: ['word', 'слово', 'vocabulary', 'translate', 'перевод', 'meaning', 'значит'],
     answers: [
-      'Great question! Building vocabulary takes time. Try learning 5-10 new words daily and use them in sentences. What word interests you?',
+      'Vocabulary is key! 🔑 Tell me the word you want to know, or I can teach you a new one!',
-      'I can help with translations! Just tell me the word you want to know.'
+      'I love teaching new words! What topic interests you? Food? Travel? Work? Emotions?'
     ]
   },
   practice: {
-    keywords: ['practice', 'практик', 'speak', 'говорить', 'chat', 'болтать'],
+    keywords: ['practice', 'практик', 'speak', 'говорить', 'chat', 'болтать', 'conversation'],
     answers: [
-      'Let\'s practice! Tell me about your day in English. Don\'t worry about mistakes - I\'ll help you correct them!',
+      'Awesome! Let\'s chat! 💬 Tell me - what did you do yesterday? Use past tense!',
-      'Great! Let\'s have a conversation. What topics interest you? Hobbies, work, travel, movies?'
+      'Perfect! I love conversations! So... what are your hobbies? What do you enjoy doing?'
     ]
   },
   mistake: {
-    keywords: ['mistake', 'ошибка', 'wrong', 'correct', 'правильно'],
+    keywords: ['mistake', 'ошибка', 'wrong', 'correct', 'правильно', 'right'],
     answers: [
-      'Mistakes are how we learn! Don\'t be afraid to make them. Even native speakers make mistakes!',
+      'Mistakes are GOLD! ✨ They show you\'re trying! Tell me what you\'re unsure about.',
-      'Good catch! Let me explain the rule so you remember it better.'
+      'Don\'t worry about mistakes - they\'re part of learning! Even natives make them! Let\'s figure it out together.'
     ]
   },
   goodbye: {
-    keywords: ['bye', 'goodbye', 'пока', 'до свидания', 'see you'],
+    keywords: ['bye', 'goodbye', 'пока', 'до свидания', 'see you', 'gotta go', 'must go'],
     answers: [
-      'Goodbye! Keep practicing and you\'ll improve fast! See you next time! 👋',
+      'Bye! 🌟 You did great today! Come back soon for more practice!',
-      'Bye! Great job today! Come back when you want to practice more!'
+      'See you later! Keep thinking in English! See you next time! 👋',
+      'Goodbye! Remember - consistency is key! Practice a little every day! 💪'
     ]
   },
   encouragement: {
-    keywords: ['hard', 'трудно', 'difficult', 'can\'t', 'не могу', 'impossible'],
+    keywords: ['hard', 'трудно', 'difficult', 'can\'t', 'не могу', 'impossible', 'suck', 'bad at'],
     answers: [
-      'Learning English takes time, but you\'re doing great! Every day you\'re getting better. Keep going! 💪',
+      'Hey, listen - learning a language is HARD! 🎯 But you know what? You\'re capable! Every mistake makes you stronger!',
-      'I understand it can be challenging. Break it into small steps. What specifically is difficult? I\'ll help!'
+      'I get it, some days are tougher. But look how far you\'ve come! Want to take a break and chat about something fun?',
+      'Don\'t be so hard on yourself! Even fluent speakers started from zero. You\'ve got this! 💪 What\'s specifically difficult?'
     ]
   },
   level: {
     keywords: ['level', 'уровень', 'beginner', 'intermediate', 'advanced'],
     answers: [
-      'Choose your level from the cards above! Each level has theory, vocabulary, and exercises. Start where you feel comfortable.',
+      'Levels are just guides! 📍 Start where you feel comfy. You can always move up or review. Which feels right?',
-      'Don\'t worry too much about levels. Just start practicing and you\'ll naturally progress!'
+      'Don\'t stress about levels! Just pick one and start. The exercises will tell you if it\'s too easy or hard!'
+    ]
+  },
+  hobbies: {
+    keywords: ['hobby', 'хобби', 'interest', 'like to do', 'enjoy', 'love doing'],
+    answers: [
+      'Hobbies are the best! 🎨 Mine is... well, teaching English! 😄 What do YOU enjoy? Sports? Music? Reading?',
+      'I\'d love to hear about your hobbies! What gets you excited? What do you do in free time?'
+    ]
+  },
+  weather: {
+    keywords: ['weather', 'погода', 'sunny', 'rain', 'cold', 'hot', 'snow'],
+    answers: [
+      'Weather talk - classic English topic! ☀️🌧️ What\'s the weather like where you are? I\'m curious!',
+      'Ah, the British love talking about weather! 😄 Is it sunny? Rainy? Perfect weather for studying English!'
+    ]
+  },
+  family: {
+    keywords: ['family', 'семья', 'mother', 'father', 'sister', 'brother', 'parents'],
+    answers: [
+      'Family is important! 👨‍👩‍👧‍👦 Tell me about yours! Do you have siblings? What are your parents like?',
+      'I\'d love to hear about your family! Are you close with them? Do they speak English too?'
+    ]
+  },
+  work: {
+    keywords: ['work', 'работа', 'job', 'study', 'учеба', 'university', 'school'],
+    answers: [
+      'Work/study keeps us busy! 💼📚 What do you do? What\'s your favorite part about it?',
+      'Interesting! What field are you in? Or what are you studying? I\'m all ears!'
+    ]
+  },
+  yes: {
+    keywords: ['yes', 'да', 'yeah', 'yep', 'sure', 'of course', 'конечно'],
+    answers: [
+      'Great! 😊 So, tell me more! I\'m listening!',
+      'Awesome! Keep going! What else?',
+      'Perfect! You\'re doing well! Continue!'
+    ]
+  },
+  no: {
+    keywords: ['no', 'нет', 'nope', 'don\'t', 'не'],
+    answers: [
+      'That\'s okay! 😊 Maybe another time. What WOULD you like to talk about?',
+      'No problem! Everyone has different preferences. What interests you more?'
+    ]
+  },
+  why: {
+    keywords: ['why', 'почему', 'wherefore'],
+    answers: [
+      'Good question! 🤔 "Why" questions are great for learning! Let me explain...',
+      'Why indeed! Curiosity is the key to learning! Let\'s figure this out together.'
+    ]
+  },
+  what: {
+    keywords: ['what', 'что', 'какой', 'which'],
+    answers: [
+      'Hmm, let me think... 🤔 What do YOU think? Try to answer in English!',
+      'Great question! Let me help you figure it out. What\'s your guess?'
     ]
   }
 };
 
 const fallbackAnswers = [
-  'Interesting! Tell me more about it in English. Practice makes perfect! 😊',
+  'Interesting! 😊 Tell me more! I\'m curious about your thoughts!',
-  'I see! Can you give me an example sentence? I\'ll help you check it.',
+  'I see! Can you give me an example? That helps me understand better!',
-  'That\'s a great topic! What specific aspect would you like to discuss?',
+  'That\'s a great topic! What specifically interests you about it?',
-  'Good question! Let me think... Actually, the best way to learn is through practice. Try making a sentence with this!',
+  'Hmm, tell me more! Try to use English - I\'ll help if you get stuck! 💬',
-  'Hmm, I\'m not sure I understand completely. Can you rephrase that? Or ask me something more specific about English.'
+  'Nice! So... what else? Ask me something or tell me about your day!',
+  'Got it! 🎯 Now, here\'s a question for YOU: [asks question about the topic]'
 ];
 
+// Вопросы для поддержания разговора
+const conversationStarters = [
+  'So, what did you do today?',
+  'What\'s your favorite hobby? Why do you like it?',
+  'Do you have any plans for the weekend?',
+  'What\'s your favorite movie? Tell me about it!',
+  'Do you prefer coffee or tea? Why?',
+  'What\'s the best place you\'ve ever visited?',
+  'Do you have any pets? Tell me about them!',
+  'What\'s your favorite food? Can you describe it?',
+  'Do you like music? What kind?',
+  'What\'s something you\'re proud of?'
+];
+
+function getFollowUpQuestion() {
+  return conversationStarters[Math.floor(Math.random() * conversationStarters.length)];
+}
+
 function getStaticResponse(message) {
   const lower = message.toLowerCase();
   
+  // Сохраняем в историю
+  chatHistory.push({ role: 'user', content: message });
+  if (chatHistory.length > 10) chatHistory.shift(); // Храним последние 10 сообщений
+  
   // Ищем совпадения по ключевым словам
   for (const [category, data] of Object.entries(teacherResponses)) {
     if (data.keywords.some(kw => lower.includes(kw))) {
       const answers = data.answers;
-      return answers[Math.floor(Math.random() * answers.length)];
+      let response = answers[Math.floor(Math.random() * answers.length)];
+      
+      // Добавляем follow-up вопрос для продолжения разговора
+      if (data.followUp && Math.random() > 0.5) {
+        response += ' ' + data.followUp;
+      } else if (Math.random() > 0.6) {
+        response += ' ' + getFollowUpQuestion();
+      }
+      
+      return response;
     }
   }
   
   // Определяем язык
   const isRussian = /[а-яА-ЯёЁ]/.test(message);
   
+  // Проверяем последние сообщения в истории
+  const lastUserMessage = chatHistory.filter(m => m.role === 'user').slice(-2, -1)[0];
+  const lastTeacherMessage = chatHistory.filter(m => m.role === 'assistant').slice(-1)[0];
+  
   if (isRussian) {
+    // Ответы на русском с английскими вставками
     const ruResponses = [
-      'Отличный вопрос! Попробуй задать его на английском - я помогу с переводом и грамматикой.',
+      'Отлично! 😊 Теперь попробуй сказать это на английском! Я помогу.',
-      'Интересно! Расскажи подробнее. Не бойся делать ошибки - я помогу их исправить.',
+      'Интересно! Расскажи подробнее на английском. Не бойся ошибок!',
-      'Хорошо! Давай обсудим это. Какой аспект тебя интересует?',
+      'Хороший вопрос! Как ты думаешь, какой будет ответ? Попробуй угадать!',
-      'Вопрос понятен! Лучший способ выучить - практиковаться. Попробуй составить предложение на эту тему!',
+      'Понятно! А что ты думаешь об этом? Tell me in English!',
-      'Я тут, чтобы помочь! Спроси что-то конкретное о грамматике, словах или давай поболтаем на английском.'
+      'Я тебя понимаю! Давай попробуем сказать это по-английски вместе!'
     ];
-    return ruResponses[Math.floor(Math.random() * ruResponses.length)];
+    
+    let response = ruResponses[Math.floor(Math.random() * ruResponses.length)];
+    
+    // Добавляем вопрос для продолжения
+    if (Math.random() > 0.5) {
+      const ruQuestions = [
+        'А как ты это скажешь на английском?',
+        'Что ты думаешь об этом?',
+        'Расскажи подробнее!',
+        'А что было потом?',
+        'Почему ты так решил?'
+      ];
+      response += ' ' + ruQuestions[Math.floor(Math.random() * ruQuestions.length)];
+    }
+    
+    return response;
   }
   
-  // English fallback
+  // English fallback с поддержкой разговора
-  return fallbackAnswers[Math.floor(Math.random() * fallbackAnswers.length)];
+  let response = fallbackAnswers[Math.floor(Math.random() * fallbackAnswers.length)];
+  
+  // Если это длинное сообщение - задаём уточняющий вопрос
+  if (message.length > 30 || message.split(' ').length > 5) {
+    const followUps = [
+      ' Why do you think so?',
+      ' Tell me more!',
+      ' What happened next?',
+      ' How did that make you feel?',
+      ' Really? That\'s interesting! Go on!',
+      ' What do you mean by that?',
+      ' Can you give me an example?'
+    ];
+    response += followUps[Math.floor(Math.random() * followUps.length)];
+  }
+  
+  return response;
 }
 
 async function askTeacher(message) {
-  // Пробуем серверный ИИ (если есть)
+  // Сохраняем сообщение пользователя в историю
+  chatHistory.push({ role: 'user', content: message, timestamp: Date.now() });
+  
+  // Пробуем серверный ИИ (если есть) - с полной историей диалога
   try {
-    const levelContext = currentLevel ? `Current student level: ${currentLevel}. ` : '';
+    const levelContext = currentLevel ? `Student level: ${currentLevel}. ` : '';
+    
+    // Формируем контекст из истории
+    const conversationContext = chatHistory.slice(-8).map(m => 
+      `${m.role === 'user' ? 'Student' : 'Teacher'}: ${m.content}`
+    ).join('\n');
     
     const messages = [
       {
         role: 'system',
-        content: `You are a friendly and supportive English teacher. Your tasks:
+        content: `You are a friendly, conversational English teacher. Have a NATURAL conversation with the student.
-1. Communicate at the student's level
-2. Correct mistakes gently and explain grammar rules
-3. Help with vocabulary and constructions
-4. Encourage and motivate
-5. Answer grammar questions
 
-${levelContext}Respond briefly (2-4 sentences), in a friendly manner. If the student writes in Russian, respond in Russian with English examples. If in English, respond in English but you can add translations of difficult words.`
+${levelContext}
+YOUR STYLE:
+- Be warm, encouraging, and curious
+- Ask follow-up questions to keep conversation going
+- Show genuine interest in their life, opinions, experiences
+- Correct mistakes gently by rephrasing correctly
+- Use emoji occasionally 😊
+- Keep responses conversational (2-4 sentences)
+- If they write in Russian, respond in Russian with English examples
+- Always end with a question or invitation to share more
+
+RECENT CONVERSATION:
+${conversationContext}
+
+Now respond naturally to: "${message}"`
       },
       {
         role: 'user',
@@ -636,7 +816,7 @@ ${levelContext}Respond briefly (2-4 sentences), in a friendly manner. If the stu
         'Content-Type': 'application/json'
       },
       body: JSON.stringify({ messages }),
-      timeout: 5000
+      timeout: 8000
     });
 
     if (!response.ok) {
@@ -650,11 +830,19 @@ ${levelContext}Respond briefly (2-4 sentences), in a friendly manner. If the stu
       throw new Error('Empty AI response');
     }
 
+    // Сохраняем ответ учителя
+    chatHistory.push({ role: 'assistant', content: answer, timestamp: Date.now() });
+    
     return answer.replace(/\n/g, '<br>');
   } catch (error) {
-    // Фолбэк на статические ответы
+    // Фолбэк на статические ответы с разговорной логикой
     console.log('Using static responses:', error.message);
-    return getStaticResponse(message);
+    const response = getStaticResponse(message);
+    
+    // Сохраняем ответ в историю
+    chatHistory.push({ role: 'assistant', content: response, timestamp: Date.now() });
+    
+    return response;
   }
 }
 

style.css

@@ -175,21 +175,35 @@ body {
 .message {
   margin-bottom: 16px;
   display: flex;
+  align-items: flex-start;
+  gap: 10px;
 }
 
 .message.student {
   justify-content: flex-end;
+  flex-direction: row-reverse;
 }
 
 .message.teacher {
   justify-content: flex-start;
 }
 
+.message-avatar {
+  font-size: 24px;
+  flex-shrink: 0;
+  width: 32px;
+  height: 32px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
 .message-bubble {
   max-width: 80%;
   padding: 12px 16px;
   border-radius: 16px;
   line-height: 1.5;
+  word-wrap: break-word;
 }
 
 .message.teacher .message-bubble {