Create script.js

script.js

@@ -0,0 +1,147 @@
+let conversations = JSON.parse(localStorage.getItem('gemini_history')) || {};
+let currentChatId = null;
+
+function toggleSidebar() {
+    const sidebar = document.getElementById('sidebar');
+    sidebar.classList.toggle('closed');
+}
+
+function renderHistory() {
+    const list = document.getElementById('historyList');
+    list.innerHTML = '';
+    Object.keys(conversations).sort((a,b) => b-a).forEach(id => {
+        const item = document.createElement('div');
+        item.className = 'history-item';
+        if(id === currentChatId) item.style.backgroundColor = "#282a2c";
+        item.innerHTML = `
+            <span onclick="loadChat('${id}')" style="flex:1; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;">${conversations[id].title}</span>
+            <button class="delete-chat-btn" onclick="deleteChat('${id}', event)">✕</button>
+        `;
+        list.appendChild(item);
+    });
+}
+
+function startNewChat() {
+    currentChatId = 'chat_' + Date.now();
+    conversations[currentChatId] = { title: "New Chat", messages: [] };
+    saveToLocalStorage();
+    renderHistory();
+    
+    document.getElementById('welcomeScreen').style.display = 'block';
+    document.getElementById('chatMessages').style.display = 'none';
+    document.getElementById('chatMessages').innerHTML = '';
+    
+    if(window.innerWidth <= 768) toggleSidebar();
+}
+
+function loadChat(id) {
+    currentChatId = id;
+    renderHistory();
+    
+    document.getElementById('welcomeScreen').style.display = 'none';
+    const msgDiv = document.getElementById('chatMessages');
+    msgDiv.style.display = 'flex';
+    msgDiv.innerHTML = '';
+    
+    conversations[id].messages.forEach(msg => {
+        appendBubble(msg.role, msg.text);
+    });
+    
+    if(window.innerWidth <= 768) toggleSidebar();
+}
+
+function deleteChat(id, event) {
+    event.stopPropagation();
+    delete conversations[id];
+    saveToLocalStorage();
+    renderHistory();
+    if (currentChatId === id) {
+        currentChatId = null;
+        document.getElementById('welcomeScreen').style.display = 'block';
+        document.getElementById('chatMessages').style.display = 'none';
+    }
+}
+
+function appendBubble(role, text) {
+    const container = document.getElementById('chatMessages');
+    const bubble = document.createElement('div');
+    bubble.className = `chat-bubble ${role}`;
+    
+    const avatar = role === 'user' ? '👤' : '✨';
+    bubble.innerHTML = `
+        <div class="bubble-avatar">${avatar}</div>
+        <div class="bubble-text">${text}</div>
+    `;
+    container.appendChild(bubble);
+    const chatContainer = document.getElementById('chatContainer');
+    chatContainer.scrollTop = chatContainer.scrollHeight;
+}
+
+function useSuggestion(text) {
+    document.getElementById('userInput').value = text;
+    sendMessage();
+}
+
+async function sendMessage() {
+    const input = document.getElementById('userInput');
+    const text = input.value.trim();
+    if (!text) return;
+
+    if (!currentChatId) {
+        currentChatId = 'chat_' + Date.now();
+        conversations[currentChatId] = { title: text.substring(0, 24), messages: [] };
+    }
+
+    // স্ক্রিন পরিবর্তন
+    document.getElementById('welcomeScreen').style.display = 'none';
+    document.getElementById('chatMessages').style.display = 'flex';
+
+    // ইউজার মেসেজ রেন্ডার ও সেভ
+    appendBubble('user', text);
+    conversations[currentChatId].messages.push({ role: 'user', text: text });
+    
+    if(conversations[currentChatId].title === "New Chat") {
+        conversations[currentChatId].title = text.substring(0, 24);
+    }
+    
+    input.value = '';
+    saveToLocalStorage();
+    renderHistory();
+
+    // লোডিং ইন্ডিকেটর শো করা
+    appendBubble('bot', 'Thinking...');
+    const lastBubble = document.getElementById('chatMessages').lastChild.querySelector('.bubble-text');
+
+    try {
+        // সরাসরি Gradio /predict endpoint এ পোস্ট রিকোয়েস্ট পাঠানো
+        const response = await fetch("/call/predict", {
+            method: "POST",
+            headers: { "Content-Type": "application/json" },
+            body: JSON.stringify({ data: [text] })
+        });
+        const resJson = await response.json();
+        const reply = resJson.data[0];
+
+        // লোডিং টেক্সট সরিয়ে বটের আসল উত্তর বসানো
+        lastBubble.innerText = reply;
+        conversations[currentChatId].messages.push({ role: 'bot', text: reply });
+        saveToLocalStorage();
+    } catch (e) {
+        lastBubble.innerText = "Error: Could not connect to Gemini backend.";
+    }
+}
+
+function handleKeyPress(e) {
+    if (e.key === 'Enter') sendMessage();
+}
+
+function saveToLocalStorage() {
+    localStorage.setItem('gemini_history', JSON.stringify(conversations));
+}
+
+// ইনিশিয়াল লোড
+setTimeout(() => {
+    renderHistory();
+    // মোবাইল স্ক্রিনে ডিফল্ট সাইডবার বন্ধ রাখা
+    if(window.innerWidth <= 768) document.getElementById('sidebar').classList.add('closed');
+}, 300);