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// --- State ---
let sessionId = null;
let models = [];
let currentModel = null;
const REQUEST_LIMIT = 3;
const REQUEST_WINDOW_MS = 30 * 1000; // 1 minute
let requestTimestamps = [];
// --- DOM Elements ---
const modal = document.getElementById('modal');
const apiKeyInput = document.getElementById('apiKeyInput');
const loginBtn = document.getElementById('loginBtn');
const loginError = document.getElementById('loginError');
const app = document.getElementById('app');
const chatContainer = document.getElementById('chatContainer');
const toolToggle = document.getElementById('toolToggle');
const inputForm = document.getElementById('inputForm');
const userInput = document.getElementById('userInput');
const modelSelect = document.getElementById('modelSelect');
const logoutBtn = document.getElementById('logoutBtn');
const typingIndicator = document.getElementById('typingIndicator');
let toolUse = true;
// --- Helpers ---
function canSendRequest() {
const now = Date.now();
// Remove timestamps older than 1 minute
requestTimestamps = requestTimestamps.filter(ts => now - ts < REQUEST_WINDOW_MS);
return requestTimestamps.length < REQUEST_LIMIT;
}
function recordRequest() {
requestTimestamps.push(Date.now());
}
function scrollToBottom() {
chatContainer.scrollTop = chatContainer.scrollHeight;
}
function addMessage(text, sender) {
const msgDiv = document.createElement('div');
msgDiv.className = 'message ' + sender;
const bubble = document.createElement('div');
bubble.className = 'bubble';
bubble.textContent = text;
msgDiv.appendChild(bubble);
chatContainer.appendChild(msgDiv);
scrollToBottom();
}
function setTyping(isTyping) {
typingIndicator.classList.toggle('hidden', !isTyping);
scrollToBottom();
}
function showError(msg) {
loginError.textContent = msg || '';
}
toolToggle.addEventListener('change', function() {
toolUse = toolToggle.checked;
});
// --- Auth & Model Selection ---
loginBtn.onclick = async function () {
const apiKey = apiKeyInput.value.trim();
if (!apiKey) { showError('API key required.'); return; }
loginBtn.disabled = true;
showError('');
try {
const res = await fetch('/init', {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({api_key: apiKey})
});
const data = await res.json();
if (!data.success) { showError(data.error || 'Login failed.'); loginBtn.disabled = false; return; }
sessionId = data.session_id;
models = data.models || [];
// Populate model dropdown
modelSelect.innerHTML = '';
models.forEach(m => {
const opt = document.createElement('option');
opt.value = m;
opt.textContent = m;
modelSelect.appendChild(opt);
});
currentModel = models[0];
modelSelect.value = currentModel;
// Show app, hide modal
modal.classList.add('hidden');
app.classList.remove('hidden');
chatContainer.innerHTML = '';
userInput.focus();
} catch (e) {
showError('Network error.');
loginBtn.disabled = false;
}
};
modelSelect.onchange = function () {
currentModel = modelSelect.value;
};
// --- Chat Logic ---
inputForm.onsubmit = async function (e) {
e.preventDefault();
const text = userInput.value.trim();
if (!text) return;
if (!canSendRequest()) {
addMessage('[Rate limit] Please wait: only 4 requests per minute allowed.', 'bot');
return;
}
recordRequest();
addMessage(text, 'user');
userInput.value = '';
setTyping(true);
try {
const res = await fetch('/chat', {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({
session_id: sessionId,
query: text,
tool_use: toolUse, // <-- Use the toggle value here
model: currentModel
})
});
const data = await res.json();
setTyping(false);
if (data.error) {
addMessage('[Error] ' + data.error, 'bot');
return;
}
addMessage(data.output, 'bot');
} catch (e) {
setTyping(false);
addMessage('[Network error]', 'bot');
}
};
// --- Logout Logic ---
logoutBtn.onclick = async function () {
await logoutAndReset();
};
async function logoutAndReset() {
if (sessionId) {
try {
await fetch('/logout', {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({session_id: sessionId})
});
} catch {}
sessionId = null;
models = [];
currentModel = null;
}
app.classList.add('hidden');
modal.classList.remove('hidden');
apiKeyInput.value = '';
chatContainer.innerHTML = '';
showError('');
loginBtn.disabled = false;
}
// --- Auto logout on exit ---
window.addEventListener('beforeunload', logoutAndReset);
// --- UX: Enter key in modal input triggers login ---
apiKeyInput.addEventListener('keyup', function(e) {
if (e.key === 'Enter') loginBtn.click();
});
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