// Julep Chat Widget with Streaming Support (function() { 'use strict'; console.log('[Julep Widget] Loading...'); // Configuration const PROXY_URL = 'https://julep-chat-proxy.vercel.app/api/chat'; // State let sessionId = null; let isOpen = false; // Helper function to create element with attributes function createElement(tag, attrs = {}, innerHTML = '') { const el = document.createElement(tag); Object.entries(attrs).forEach(([key, value]) => { if (key === 'style') { el.style.cssText = value; } else if (key === 'className') { el.className = value; } else { el.setAttribute(key, value); } }); if (innerHTML) el.innerHTML = innerHTML; return el; } // Create and inject styles const styles = createElement('style', {}, ` @import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap'); /* CSS Variables for theming */ :root { --julep-bg-primary: #ffffff; --julep-bg-secondary: #f8f9fb; --julep-bg-tertiary: #f8fafb; --julep-text-primary: #1a202c; --julep-text-secondary: #4a5568; --julep-border: #e2e8f0; --julep-shadow: rgba(0,0,0,0.12); --julep-input-bg: #ffffff; --julep-code-bg: #1e293b; --julep-code-text: #e2e8f0; } /* Dark mode variables */ #julep-chat-widget[data-theme="dark"] { --julep-bg-primary: #1a1a1a; --julep-bg-secondary: #0f0f0f; --julep-bg-tertiary: #252525; --julep-text-primary: #e2e8f0; --julep-text-secondary: #a0aec0; --julep-border: #2d3748; --julep-shadow: rgba(0,0,0,0.4); --julep-input-bg: #252525; --julep-code-bg: #0f0f0f; --julep-code-text: #e2e8f0; } #julep-toggle-btn { position: fixed !important; bottom: 24px !important; right: 24px !important; width: 64px !important; height: 64px !important; background: linear-gradient(135deg, #004E64 0%, #00A5CF 100%) !important; border: none !important; border-radius: 50% !important; cursor: pointer !important; box-shadow: 0 4px 20px rgba(0, 78, 100, 0.3) !important; z-index: 99999 !important; display: flex !important; align-items: center !important; justify-content: center !important; transition: all 0.3s ease !important; } #julep-toggle-btn:hover { transform: translateY(-2px) !important; box-shadow: 0 6px 30px rgba(0, 78, 100, 0.4) !important; background: linear-gradient(135deg, #003847 0%, #0091b8 100%) !important; } #julep-toggle-btn svg { width: 28px !important; height: 28px !important; } #julep-chat-widget { position: fixed !important; bottom: 100px !important; right: 24px !important; width: 480px !important; height: 680px !important; background: var(--julep-bg-primary) !important; border-radius: 16px !important; box-shadow: 0 10px 40px var(--julep-shadow) !important; z-index: 99998 !important; display: none !important; flex-direction: column !important; font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important; overflow: hidden !important; transition: all 0.3s ease !important; border: 1px solid var(--julep-border) !important; } #julep-chat-widget.open { display: flex !important; } /* Expanded mode */ #julep-chat-widget.expanded { width: 600px !important; height: 780px !important; } @media (max-width: 768px) { #julep-chat-widget { width: calc(100vw - 40px) !important; height: calc(100vh - 140px) !important; right: 20px !important; bottom: 80px !important; } #julep-chat-widget.expanded { width: calc(100vw - 40px) !important; height: calc(100vh - 140px) !important; } } #julep-chat-header { background: linear-gradient(135deg, #004E64 0%, #00A5CF 100%) !important; color: white !important; padding: 20px 24px !important; display: flex !important; justify-content: space-between !important; align-items: center !important; font-weight: 600 !important; font-size: 17px !important; letter-spacing: -0.02em !important; } #julep-header-buttons { display: flex !important; align-items: center !important; gap: 8px !important; } #julep-close-btn { background: rgba(255, 255, 255, 0.15) !important; border: none !important; color: white !important; font-size: 24px !important; cursor: pointer !important; width: 34px !important; height: 34px !important; border-radius: 8px !important; display: flex !important; align-items: center !important; justify-content: center !important; transition: all 0.2s ease !important; } #julep-close-btn:hover { background: rgba(255, 255, 255, 0.25) !important; } /* Expand button styling */ #julep-expand-btn { background: rgba(255, 255, 255, 0.15) !important; border: none !important; color: white !important; font-size: 18px !important; cursor: pointer !important; width: 34px !important; height: 34px !important; border-radius: 8px !important; display: flex !important; align-items: center !important; justify-content: center !important; transition: all 0.2s ease !important; margin-right: 8px !important; } #julep-expand-btn:hover { background: rgba(255, 255, 255, 0.25) !important; } #julep-messages { flex: 1 !important; overflow-y: auto !important; padding: 24px !important; background: var(--julep-bg-secondary) !important; } .julep-message { margin-bottom: 16px !important; padding: 12px 16px !important; border-radius: 12px !important; max-width: 85% !important; font-size: 14px !important; line-height: 1.5 !important; position: relative !important; } .julep-message-copy { position: absolute !important; top: 8px !important; right: 8px !important; background: transparent !important; border: none !important; cursor: pointer !important; opacity: 0 !important; transition: opacity 0.2s ease !important; padding: 4px !important; border-radius: 4px !important; } .julep-message:hover .julep-message-copy { opacity: 0.6 !important; } .julep-message-copy:hover { opacity: 1 !important; background: rgba(0, 0, 0, 0.1) !important; } .julep-user .julep-message-copy { color: white !important; } .julep-assistant .julep-message-copy { color: var(--julep-text-primary) !important; } .julep-user { background: linear-gradient(135deg, #004E64 0%, #00A5CF 100%) !important; color: white !important; margin-left: auto !important; border-bottom-right-radius: 4px !important; box-shadow: 0 2px 8px rgba(0, 78, 100, 0.2) !important; } .julep-assistant { background: var(--julep-bg-tertiary) !important; color: var(--julep-text-primary) !important; border: 1px solid var(--julep-border) !important; box-shadow: 0 1px 3px var(--julep-shadow) !important; } .julep-message pre { background: var(--julep-code-bg) !important; color: var(--julep-code-text) !important; padding: 12px !important; border-radius: 8px !important; overflow-x: auto !important; margin: 8px 0 !important; border: 1px solid var(--julep-border) !important; position: relative !important; } .julep-code-copy { position: absolute !important; top: 8px !important; right: 8px !important; background: rgba(255, 255, 255, 0.1) !important; border: 1px solid rgba(255, 255, 255, 0.2) !important; border-radius: 6px !important; padding: 4px 8px !important; cursor: pointer !important; font-size: 12px !important; color: var(--julep-code-text) !important; opacity: 0 !important; transition: all 0.2s ease !important; } .julep-message pre:hover .julep-code-copy { opacity: 1 !important; } .julep-code-copy:hover { background: rgba(255, 255, 255, 0.2) !important; } .julep-code-copy.copied { background: #25A18E !important; border-color: #25A18E !important; } .julep-message code { background: var(--julep-code-bg) !important; color: #00A5CF !important; padding: 2px 4px !important; border-radius: 4px !important; font-family: monospace !important; } .julep-message pre code { background: none !important; color: inherit !important; padding: 0 !important; } .julep-message h1, .julep-message h2, .julep-message h3, .julep-message h4, .julep-message h5, .julep-message h6 { margin: 12px 0 8px 0 !important; font-weight: 600 !important; line-height: 1.4 !important; } .julep-message h1 { font-size: 20px !important; } .julep-message h2 { font-size: 18px !important; } .julep-message h3 { font-size: 16px !important; } .julep-message h4 { font-size: 15px !important; } .julep-message h5 { font-size: 14px !important; } .julep-message h6 { font-size: 13px !important; } .julep-message ul, .julep-message ol { margin: 8px 0 !important; padding-left: 20px !important; } .julep-message li { margin: 4px 0 !important; line-height: 1.5 !important; } .julep-message a { color: #00A5CF !important; text-decoration: none !important; border-bottom: 1px solid transparent !important; transition: border-color 0.2s !important; } .julep-message a:hover { border-bottom-color: #00A5CF !important; color: #0091b8 !important; } #julep-input-container { padding: 20px !important; background: var(--julep-bg-primary) !important; border-top: 1px solid var(--julep-border) !important; display: flex !important; gap: 12px !important; } #julep-input { flex: 1 !important; padding: 13px 18px !important; border: 2px solid var(--julep-border) !important; border-radius: 12px !important; font-size: 14px !important; outline: none !important; transition: all 0.2s ease !important; background: var(--julep-input-bg) !important; color: var(--julep-text-primary) !important; } #julep-input:focus { border-color: #00A5CF !important; box-shadow: 0 0 0 3px rgba(0, 165, 207, 0.1) !important; } #julep-input::placeholder { color: var(--julep-text-secondary) !important; } #julep-send-btn { padding: 13px 24px !important; background: linear-gradient(135deg, #004E64 0%, #00A5CF 100%) !important; color: white !important; border: none !important; border-radius: 12px !important; cursor: pointer !important; font-size: 14px !important; font-weight: 500 !important; transition: all 0.2s ease !important; box-shadow: 0 2px 8px rgba(0, 78, 100, 0.2) !important; } #julep-send-btn:hover { transform: translateY(-1px) !important; box-shadow: 0 4px 12px rgba(0, 78, 100, 0.3) !important; background: linear-gradient(135deg, #003847 0%, #0091b8 100%) !important; } #julep-send-btn:active { transform: translateY(0) !important; } .julep-loading { display: inline-flex !important; gap: 4px !important; } .julep-loading span { width: 6px !important; height: 6px !important; background: #00A5CF !important; border-radius: 50% !important; animation: julep-bounce 1.4s ease-in-out infinite both !important; } .julep-loading span:nth-child(2) { animation-delay: 0.16s !important; } .julep-loading span:nth-child(3) { animation-delay: 0.32s !important; } @keyframes julep-bounce { 0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; } 40% { transform: scale(1); opacity: 1; } } `); // Create widget elements const toggleBtn = createElement('button', { id: 'julep-toggle-btn', type: 'button' }, ''); const widget = createElement('div', { id: 'julep-chat-widget' }); const header = createElement('div', { id: 'julep-chat-header' }); const headerTitle = createElement('span', {}, 'Julep Assistant'); const headerButtons = createElement('div', { id: 'julep-header-buttons' }); const expandBtn = createElement('button', { id: 'julep-expand-btn', type: 'button' }, '⤢'); const closeBtn = createElement('button', { id: 'julep-close-btn', type: 'button' }, '×'); headerButtons.appendChild(expandBtn); headerButtons.appendChild(closeBtn); header.appendChild(headerTitle); header.appendChild(headerButtons); const messagesDiv = createElement('div', { id: 'julep-messages' }); const inputContainer = createElement('div', { id: 'julep-input-container' }); const input = createElement('input', { id: 'julep-input', type: 'text', placeholder: 'Ask about Julep...' }); const sendBtn = createElement('button', { id: 'julep-send-btn', type: 'button' }, 'Send'); inputContainer.appendChild(input); inputContainer.appendChild(sendBtn); widget.appendChild(header); widget.appendChild(messagesDiv); widget.appendChild(inputContainer); // Helper functions function copyToClipboard(text) { if (navigator.clipboard && navigator.clipboard.writeText) { navigator.clipboard.writeText(text).catch(err => { console.error('[Julep Widget] Failed to copy:', err); }); } else { // Fallback for older browsers const textarea = document.createElement('textarea'); textarea.value = text; textarea.style.position = 'fixed'; textarea.style.opacity = '0'; document.body.appendChild(textarea); textarea.select(); document.execCommand('copy'); document.body.removeChild(textarea); } } // Global function for code copy buttons window.copyJulepCode = function(codeId) { const codeElement = document.getElementById(codeId); if (codeElement) { const code = codeElement.querySelector('code').textContent; copyToClipboard(code); const copyBtn = codeElement.querySelector('.julep-code-copy'); copyBtn.textContent = 'Copied!'; copyBtn.classList.add('copied'); setTimeout(() => { copyBtn.textContent = 'Copy'; copyBtn.classList.remove('copied'); }, 2000); } }; function parseMarkdown(text) { // First, extract and store code blocks to protect them const codeBlocks = []; let html = text.replace(/```(\w+)?\n([\s\S]*?)```/g, (match, lang, code) => { const index = codeBlocks.length; codeBlocks.push({ lang: lang || 'plaintext', code: code.trim() }); return `__CODEBLOCK_${index}__`; }); // Extract inline code const inlineCode = []; html = html.replace(/`([^`]+)`/g, (match, code) => { const index = inlineCode.length; inlineCode.push(code); return `__INLINECODE_${index}__`; }); // Now escape HTML html = html.replace(/[&<>"']/g, (m) => ({ '&': '&', '<': '<', '>': '>', '"': '"', "'": ''' })[m]); // Process markdown // Headers html = html.replace(/^#{6}\s+(.+)$/gm, '

$1

'); html = html.replace(/^#{5}\s+(.+)$/gm, '

$1

'); html = html.replace(/^#{4}\s+(.+)$/gm, '

$1

'); html = html.replace(/^#{3}\s+(.+)$/gm, '

$1

'); html = html.replace(/^#{2}\s+(.+)$/gm, '

$1

'); html = html.replace(/^#{1}\s+(.+)$/gm, '

$1

'); // Bold and italic html = html.replace(/\*\*\*(.+?)\*\*\*/g, '$1'); html = html.replace(/\*\*(.+?)\*\*/g, '$1'); html = html.replace(/\*(.+?)\*/g, '$1'); // Lists html = html.replace(/^\* (.+)$/gm, '

'); html = html.replace(/^\- (.+)$/gm, '

'); html = html.replace(/^\d+\. (.+)$/gm, '

'); // Links html = html.replace(/\[([^\]]+)\]$([^)]+)$/g, '$1'); // Line breaks html = html.replace(/\n/g, '
'); // Restore code blocks with proper escaping and copy button codeBlocks.forEach((block, index) => { const escapedCode = block.code.replace(/[&<>"']/g, (m) => ({ '&': '&', '<': '<', '>': '>', '"': '"', "'": ''' })[m]); const codeId = `code-${Date.now()}-${index}`; html = html.replace(`__CODEBLOCK_${index}__`, `

${escapedCode}

` ); }); // Restore inline code inlineCode.forEach((code, index) => { const escapedCode = code.replace(/[&<>"']/g, (m) => ({ '&': '&', '<': '<', '>': '>', '"': '"', "'": ''' })[m]); html = html.replace(`__INLINECODE_${index}__`, `${escapedCode}`); }); // Clean up extra line breaks around block elements html = html.replace(/
(<[hpd])/g, '$1'); html = html.replace(/(<\/[hpd][^>]*>)
/g, '$1'); return html; } function addMessage(text, sender) { const messageDiv = createElement('div', { className: 'julep-message julep-' + sender }); // Add message content messageDiv.innerHTML = parseMarkdown(text); // Add copy button for message const copyBtn = createElement('button', { className: 'julep-message-copy', title: 'Copy message' }, ``); copyBtn.onclick = function() { copyToClipboard(text); copyBtn.innerHTML = '✓'; setTimeout(() => { copyBtn.innerHTML = ``; }, 2000); }; messageDiv.appendChild(copyBtn); messagesDiv.appendChild(messageDiv); messagesDiv.scrollTop = messagesDiv.scrollHeight; return messageDiv; } async function createSession() { try { const response = await fetch(PROXY_URL, { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ action: 'createSession' }) }); if (!response.ok) throw new Error('Failed to create session'); const data = await response.json(); sessionId = data.id; console.log('[Julep Widget] Session created:', sessionId); } catch (error) { console.error('[Julep Widget] Session creation failed:', error); addMessage('Sorry, I could not connect to the service. Please try again later.', 'assistant'); } } async function sendMessage() { const message = input.value.trim(); if (!message) return; if (!sessionId) { await createSession(); if (!sessionId) return; } addMessage(message, 'user'); input.value = ''; const loadingDiv = document.createElement('div'); loadingDiv.className = 'julep-message julep-assistant'; loadingDiv.innerHTML = '

'; messagesDiv.appendChild(loadingDiv); messagesDiv.scrollTop = messagesDiv.scrollHeight; try { const response = await fetch(PROXY_URL, { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ action: 'sendMessage', sessionId: sessionId, message: message }) }); if (!response.ok) throw new Error('Failed to send message'); // Handle streaming const reader = response.body.getReader(); const decoder = new TextDecoder(); let buffer = ''; let fullContent = ''; loadingDiv.innerHTML = ''; while (true) { const { done, value } = await reader.read(); if (done) break; const chunk = decoder.decode(value, { stream: true }); buffer += chunk; const lines = buffer.split('\n'); buffer = lines.pop() || ''; for (const line of lines) { if (line.startsWith('data: ')) { const data = line.slice(6); if (data === '[DONE]') break; try { const parsed = JSON.parse(data); if (parsed.choices?.[0]?.delta?.content) { fullContent += parsed.choices[0].delta.content; loadingDiv.innerHTML = parseMarkdown(fullContent); messagesDiv.scrollTop = messagesDiv.scrollHeight; } } catch (e) { // Skip invalid JSON } } } } if (!fullContent) { loadingDiv.innerHTML = 'Sorry, I received an empty response.'; } } catch (error) { console.error('[Julep Widget] Message send failed:', error); loadingDiv.innerHTML = 'Sorry, I encountered an error. Please try again.'; } } // Event handlers toggleBtn.onclick = async function() { console.log('[Julep Widget] Toggle clicked'); isOpen = !isOpen; if (isOpen) { widget.classList.add('open'); if (!sessionId) { addMessage('Hello! I\'m here to help you with Julep. What would you like to know?', 'assistant'); await createSession(); } } else { widget.classList.remove('open'); } }; closeBtn.onclick = function() { console.log('[Julep Widget] Close clicked'); isOpen = false; widget.classList.remove('open'); }; expandBtn.onclick = function() { console.log('[Julep Widget] Expand clicked'); widget.classList.toggle('expanded'); expandBtn.textContent = widget.classList.contains('expanded') ? '⤡' : '⤢'; }; sendBtn.onclick = sendMessage; input.onkeypress = function(e) { if (e.key === 'Enter') sendMessage(); }; // Theme detection function function detectTheme() { // Check for Mintlify's theme - they use 'dark' class on html element const htmlElement = document.documentElement; const isDark = htmlElement.classList.contains('dark'); // Apply theme to widget widget.setAttribute('data-theme', isDark ? 'dark' : 'light'); console.log('[Julep Widget] Theme detected:', isDark ? 'dark' : 'light'); // Debug: log what we're checking console.log('[Julep Widget] HTML classes:', htmlElement.className); } // Initialize widget function init() { console.log('[Julep Widget] Initializing...'); // Inject styles if (!document.getElementById('julep-widget-styles')) { styles.id = 'julep-widget-styles'; document.head.appendChild(styles); } // Add elements to body if (!document.getElementById('julep-toggle-btn')) { document.body.appendChild(toggleBtn); document.body.appendChild(widget); console.log('[Julep Widget] Widget added to page'); } // Detect initial theme detectTheme(); // Watch for theme changes const observer = new MutationObserver(() => { detectTheme(); }); observer.observe(document.documentElement, { attributes: true, attributeFilter: ['class', 'data-theme'] }); // Also watch for system theme changes window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', detectTheme); } // Wait for DOM if (document.readyState === 'loading') { document.addEventListener('DOMContentLoaded', init); } else { setTimeout(init, 100); } })();

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