277 lines
8.8 KiB
JavaScript
277 lines
8.8 KiB
JavaScript
class LiveChatWidget {
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constructor() {
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this.ws = null;
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this.messagesContainer = document.getElementById('chat-messages');
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this.maxMessages = 50;
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this.autoScroll = true;
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this.reconnectAttempts = 0;
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this.maxReconnectAttempts = 10;
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this.platformIcons = {
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twitch: `<svg width="20" height="20" viewBox="0 0 24 24" fill="#9146FF"><path d="M11.571 4.714h1.715v5.143H11.57zm4.715 0H18v5.143h-1.714zM6 0L1.714 4.286v15.428h5.143V24l4.286-4.286h3.428L22.286 12V0zm14.571 11.143l-3.428 3.428h-3.429l-3 3v-3H6.857V1.714h13.714Z"/></svg>`,
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youtube: `<svg width="20" height="20" viewBox="0 0 24 24" fill="#FF0000"><path d="M23.498 6.186a3.016 3.016 0 0 0-2.122-2.136C19.505 3.545 12 3.545 12 3.545s-7.505 0-9.377.505A3.017 3.017 0 0 0 .502 6.186C0 8.07 0 12 0 12s0 3.93.502 5.814a3.016 3.016 0 0 0 2.122 2.136c1.871.505 9.376.505 9.376.505s7.505 0 9.377-.505a3.015 3.015 0 0 0 2.122-2.136C24 15.93 24 12 24 12s0-3.93-.502-5.814zM9.545 15.568V8.432L15.818 12l-6.273 3.568z"/></svg>`,
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};
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// Apply theme from URL query param
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const urlParams = new URLSearchParams(window.location.search);
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const theme = urlParams.get('theme');
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if (theme === 'light') {
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document.body.classList.add('theme-light');
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} else {
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document.body.classList.add('theme-dark');
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}
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// Direction: 'down' = newest at bottom (default), 'up' = newest at top
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this.direction = urlParams.get('direction') || 'down';
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if (this.direction === 'up') {
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document.body.classList.add('direction-up');
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}
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this.init();
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}
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init() {
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this.showStatus('Connecting to chat...', 'connecting');
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this.connect();
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// Handle scroll to detect manual scrolling
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this.messagesContainer.addEventListener('scroll', () => {
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const container = this.messagesContainer;
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const isAtBottom = container.scrollHeight - container.scrollTop <= container.clientHeight + 50;
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this.autoScroll = isAtBottom;
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});
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}
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connect() {
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const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
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const wsUrl = `${protocol}//${window.location.host}/ws`;
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this.ws = new WebSocket(wsUrl);
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this.ws.onopen = () => {
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console.log('Chat WebSocket connected');
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this.reconnectAttempts = 0;
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this.clearStatus();
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};
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this.ws.onmessage = (event) => {
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try {
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const data = JSON.parse(event.data);
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this.handleMessage(data);
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} catch (err) {
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console.error('Failed to parse message:', err);
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}
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};
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this.ws.onerror = (error) => {
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console.error('WebSocket error:', error);
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};
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this.ws.onclose = () => {
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console.log('Chat WebSocket disconnected');
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this.showStatus('Disconnected. Reconnecting...', 'error');
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this.reconnect();
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};
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}
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reconnect() {
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if (this.reconnectAttempts >= this.maxReconnectAttempts) {
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this.showStatus('Failed to connect. Please refresh.', 'error');
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return;
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}
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this.reconnectAttempts++;
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const delay = Math.min(1000 * Math.pow(2, this.reconnectAttempts), 30000);
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setTimeout(() => {
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console.log(`Reconnecting... (attempt ${this.reconnectAttempts})`);
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this.connect();
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}, delay);
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}
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handleMessage(data) {
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switch (data.type) {
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case 'chat_message':
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this.addChatMessage(data.data);
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break;
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case 'chat_history':
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// Initial history load (comes in oldest-to-newest order)
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if (data.data && Array.isArray(data.data)) {
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// For both directions, we add messages in order
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// The addChatMessage handles placement based on direction
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data.data.forEach(msg => this.addChatMessage(msg, false));
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if (this.direction === 'down') {
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this.scrollToBottom();
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}
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}
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break;
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default:
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// Ignore other message types
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break;
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}
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}
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addChatMessage(messageData, shouldAnimate = true) {
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const msgElement = this.createMessageElement(messageData);
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if (!shouldAnimate) {
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msgElement.style.animation = 'none';
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}
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if (this.direction === 'up') {
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// Direction UP: newest at bottom (anchored), older messages bubble upward
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// With flex-direction: column-reverse, prepending puts new message at visual bottom
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this.messagesContainer.insertBefore(msgElement, this.messagesContainer.firstChild);
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// Limit total messages (remove oldest = last child = visually at top)
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while (this.messagesContainer.children.length > this.maxMessages) {
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this.messagesContainer.removeChild(this.messagesContainer.lastChild);
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}
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} else {
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// Direction DOWN (default): newest at bottom, scroll down
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this.messagesContainer.appendChild(msgElement);
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// Limit total messages (remove oldest = first child = visually at top)
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while (this.messagesContainer.children.length > this.maxMessages) {
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this.messagesContainer.removeChild(this.messagesContainer.firstChild);
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}
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if (this.autoScroll) {
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this.scrollToBottom();
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}
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}
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}
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createMessageElement(data) {
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const msg = document.createElement('div');
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msg.className = `chat-message ${data.platform}`;
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msg.dataset.messageId = data.id;
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if (data.is_action) {
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msg.classList.add('action');
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}
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// Platform icon (optional)
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if (data.platform) {
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const iconDiv = document.createElement('div');
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iconDiv.className = 'platform-icon';
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iconDiv.innerHTML = this.platformIcons[data.platform] || '';
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msg.appendChild(iconDiv);
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}
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// Message content
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const content = document.createElement('div');
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content.className = 'message-content';
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// User info line
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const userInfo = document.createElement('div');
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userInfo.className = 'user-info';
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// Badges
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if (data.user.badges && data.user.badges.length > 0) {
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const badgesContainer = document.createElement('div');
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badgesContainer.className = 'user-badges';
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data.user.badges.forEach(badge => {
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const badgeEl = document.createElement('span');
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badgeEl.className = 'badge';
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badgeEl.title = badge.name;
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if (badge.icon_url) {
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badgeEl.innerHTML = `<img src="${badge.icon_url}" alt="${badge.name}">`;
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} else {
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// Simple text badge fallback
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badgeEl.textContent = badge.name.charAt(0).toUpperCase();
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}
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badgesContainer.appendChild(badgeEl);
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});
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userInfo.appendChild(badgesContainer);
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}
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// Username
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const username = document.createElement('span');
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username.className = 'username';
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username.textContent = data.user.display_name;
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if (data.user.color) {
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username.style.color = data.user.color;
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}
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userInfo.appendChild(username);
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// Timestamp (optional)
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const timestamp = document.createElement('span');
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timestamp.className = 'timestamp';
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timestamp.textContent = this.formatTime(data.timestamp);
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userInfo.appendChild(timestamp);
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content.appendChild(userInfo);
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// Message text with emotes
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const messageText = document.createElement('div');
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messageText.className = 'message-text';
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messageText.innerHTML = this.parseMessageWithEmotes(data.message, data.emotes);
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content.appendChild(messageText);
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msg.appendChild(content);
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return msg;
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}
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parseMessageWithEmotes(message, emotes) {
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if (!emotes || emotes.length === 0) {
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return this.escapeHtml(message);
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}
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// Build a map of emote codes to emote data
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const emoteMap = {};
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emotes.forEach(emote => {
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emoteMap[emote.code] = emote;
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});
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// Split message into words and replace emotes
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const words = message.split(' ');
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const result = words.map(word => {
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if (emoteMap[word]) {
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const emote = emoteMap[word];
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const animatedClass = emote.is_animated ? 'animated' : '';
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return `<img class="emote ${animatedClass}" src="${emote.url}" alt="${emote.code}" title="${emote.code} (${emote.provider})">`;
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}
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return this.escapeHtml(word);
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});
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return result.join(' ');
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}
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escapeHtml(text) {
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const div = document.createElement('div');
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div.textContent = text;
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return div.innerHTML;
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}
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formatTime(timestamp) {
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const date = new Date(timestamp);
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const hours = date.getHours().toString().padStart(2, '0');
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const minutes = date.getMinutes().toString().padStart(2, '0');
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return `${hours}:${minutes}`;
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}
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scrollToBottom() {
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this.messagesContainer.scrollTop = this.messagesContainer.scrollHeight;
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}
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showStatus(message, className = '') {
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this.messagesContainer.innerHTML = `<div class="status-message ${className}">${message}</div>`;
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}
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clearStatus() {
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const statusMsg = this.messagesContainer.querySelector('.status-message');
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if (statusMsg) {
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statusMsg.remove();
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}
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}
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}
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// Initialize when DOM is ready
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document.addEventListener('DOMContentLoaded', () => {
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new LiveChatWidget();
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});
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