' + (n === 0 ? 'No questions remaining today' : n + ' question' + (n === 1 ? '' : 's') + ' remaining today'); msgs.appendChild(el); msgs.scrollTop = msgs.scrollHeight; } function addTyping() { var bubble = createBotBubble(); bubble.classList.add('nai-typing'); bubble.innerHTML = ''; return bubble.parentElement; } /* ── Send ────────────────────────────────────────────────────── */ var MAX_LEN = 100; function send() { var question = input.value.trim(); if (!question || sendBtn.disabled) return; if (question.length > MAX_LEN) { addMsg('Your question is too long. Please keep it under ' + MAX_LEN + ' characters.', 'bot error'); return; } hideSuggestions(); input.value = ''; input.style.height = 'auto'; sendBtn.disabled = true; addMsg(question, 'user'); var typingEl = addTyping(); markedReady.then(function () { fetch(BACKEND + '/api/chat', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ question: question }), }) .then(function (res) { var remaining = res.headers.get('X-Questions-Remaining'); var remainingN = remaining !== null ? parseInt(remaining, 10) : null; if (remainingN !== null) { disclaimer.textContent = remainingN === 0 ? 'You have used all 10 questions for today. Come back tomorrow!' : 'AI-generated answers from Nomba docs. ' + remainingN + ' question' + (remainingN === 1 ? '' : 's') + ' remaining today.'; } if (res.status === 429) { typingEl.remove(); addMsg('You have reached your 10 questions per day limit. Please try again tomorrow.', 'bot error'); sendBtn.disabled = false; input.focus(); return Promise.reject(null); } if (!res.ok) throw new Error('Server error ' + res.status); typingEl.remove(); var botEl = createBotBubble(); var reader = res.body.getReader(); var decoder = new TextDecoder(); var sseBuffer = ''; var fullText = ''; function read() { reader.read().then(function (chunk) { if (chunk.done) { sendBtn.disabled = false; input.focus(); if (remainingN !== null) addQuotaBadge(remainingN); return; } sseBuffer += decoder.decode(chunk.value, { stream: true }); var lines = sseBuffer.split('\n'); sseBuffer = lines.pop(); lines.forEach(function (line) { if (!line.startsWith('data: ')) return; var payload = line.slice(6); if (payload === '[DONE]') return; try { var parsed = JSON.parse(payload); if (parsed.text) { fullText += parsed.text; botEl.innerHTML = renderMd(fullText); msgs.scrollTop = msgs.scrollHeight; } } catch (_) {} }); read(); }); } read(); }) .catch(function (err) { if (err === null) return; typingEl.remove(); addMsg('Something went wrong. Please try again.', 'bot error'); sendBtn.disabled = false; input.focus(); }); }); } })();

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