feat: chat history persistence via localStorage (#13)
Tracks Gitea issue perplexity/the-matrix #4. ## Storage helpers (ui.js) - loadChatHistory(agentId) — reads matrix:chat:<agentId> from localStorage, returns [] on missing/corrupt data - saveChatHistory(agentId, messages) — writes capped array (slice -100) to localStorage; silently ignores QuotaExceededError - In-memory chatHistory map per agentId populated from both helpers - Storage keys: matrix:chat:alpha, matrix:chat:beta, matrix:chat:gamma, matrix:chat:delta, matrix:chat:sys ## Timestamps - appendChatMessage now stamps each message with Date.now() - formatTimestamp(ts) formats as HH:MM for display - Rendered as <span class="chat-ts">[HH:MM]</span> before the agent name - Timestamp stored in persisted message object for sort-on-restore ## Restore on load - loadAllHistories() called from initUI() combines all five stores (4 agents + sys), sorts by timestamp, renders last MAX_CHAT_ENTRIES (12) into panel - No flash: history is populated synchronously before first rAF tick ## Persist on receive (websocket.js) - appendChatMessage for chat messages: passes def.id as agentId (4th param) - logEvent (SYS messages): passes 'sys' as agentId - No changes to WS connect/message/reconnect logic ## Clear button (index.html + ui.js) - #chat-clear-btn: fixed position, outside #ui-overlay, pointer-events:all so it remains clickable while the overlay is pointer-events:none - Positioned bottom-right, left of OFFLINE/CONNECTED indicator - On click: removes all five localStorage keys, clears DOM, resets chatEntries - Hover brightens from dim green to full #00ff41 glow for discoverability ## Deviation from spec - Task assumed per-agent panels with selectAgent(). Current UI has one shared global panel. Per-agent storage is implemented exactly as specified; restore on load shows combined last-12 across all agents (best fit for single panel). Clear wipes all stored histories (no per-agent panel to scope it to). ## Verified - npm run build exits 0, 14 modules, no new warnings
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alexpaynex
@@ -24,7 +24,6 @@
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color: #00ff41; font-size: 11px; line-height: 1.8;
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text-shadow: 0 0 6px #00ff41; max-width: 240px;
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}
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#status-panel .label { color: #007722; }
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#chat-panel {
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position: fixed; bottom: 16px; left: 16px; right: 16px;
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max-height: 180px; overflow-y: auto;
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@@ -34,11 +33,24 @@
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}
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.chat-entry { opacity: 0.8; }
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.chat-entry .agent-name { color: #00ff88; font-weight: bold; }
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.chat-ts { color: #004d18; font-size: 10px; }
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#connection-status {
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position: fixed; bottom: 16px; right: 16px;
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font-size: 11px; color: #555;
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pointer-events: none;
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}
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#connection-status.connected { color: #00ff41; text-shadow: 0 0 6px #00ff41; }
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#chat-clear-btn {
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position: fixed; bottom: 16px; right: 110px;
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font-family: 'Courier New', monospace;
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font-size: 10px; color: #004d18;
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background: transparent; border: 1px solid #004d18;
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padding: 2px 6px; cursor: pointer;
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pointer-events: all; z-index: 20;
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text-shadow: none;
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transition: color 0.2s, border-color 0.2s;
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}
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#chat-clear-btn:hover { color: #00ff41; border-color: #00ff41; }
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</style>
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</head>
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<body>
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@@ -55,6 +67,7 @@
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<div id="chat-panel"></div>
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<div id="connection-status">OFFLINE</div>
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</div>
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<button id="chat-clear-btn" title="Clear chat history">CLEAR</button>
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<script type="module" src="./js/main.js"></script>
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</body>
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</html>
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@@ -1,18 +1,96 @@
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import { getAgentDefs } from './agents.js';
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import { colorToCss } from './agent-defs.js';
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import { AGENT_DEFS, colorToCss } from './agent-defs.js';
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const $agentCount = document.getElementById('agent-count');
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const $activeJobs = document.getElementById('active-jobs');
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const $fps = document.getElementById('fps');
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const $agentList = document.getElementById('agent-list');
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const $connStatus = document.getElementById('connection-status');
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const $chatPanel = document.getElementById('chat-panel');
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const $agentCount = document.getElementById('agent-count');
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const $activeJobs = document.getElementById('active-jobs');
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const $fps = document.getElementById('fps');
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const $agentList = document.getElementById('agent-list');
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const $connStatus = document.getElementById('connection-status');
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const $chatPanel = document.getElementById('chat-panel');
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const $clearBtn = document.getElementById('chat-clear-btn');
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const MAX_CHAT_ENTRIES = 12;
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const MAX_STORED = 100;
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const STORAGE_PREFIX = 'matrix:chat:';
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const chatEntries = [];
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const chatHistory = {};
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function storageKey(agentId) {
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return STORAGE_PREFIX + agentId;
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}
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export function loadChatHistory(agentId) {
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try {
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const raw = localStorage.getItem(storageKey(agentId));
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return raw ? JSON.parse(raw) : [];
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} catch {
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return [];
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}
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}
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export function saveChatHistory(agentId, messages) {
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try {
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localStorage.setItem(storageKey(agentId), JSON.stringify(messages.slice(-MAX_STORED)));
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} catch {
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}
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}
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function formatTimestamp(ts) {
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const d = new Date(ts);
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const hh = String(d.getHours()).padStart(2, '0');
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const mm = String(d.getMinutes()).padStart(2, '0');
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return `${hh}:${mm}`;
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}
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function buildChatEntry(agentLabel, message, cssColor, timestamp) {
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const color = cssColor || '#00ff41';
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const entry = document.createElement('div');
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entry.className = 'chat-entry';
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const ts = timestamp ? `<span class="chat-ts">[${formatTimestamp(timestamp)}]</span> ` : '';
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entry.innerHTML = `${ts}<span class="agent-name" style="color:${color}">${agentLabel}</span>: ${escapeHtml(message)}`;
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return entry;
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}
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function loadAllHistories() {
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const all = [];
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const agentIds = [...AGENT_DEFS.map(d => d.id), 'sys'];
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for (const id of agentIds) {
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const msgs = loadChatHistory(id);
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chatHistory[id] = msgs;
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all.push(...msgs);
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}
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all.sort((a, b) => (a.timestamp || 0) - (b.timestamp || 0));
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for (const msg of all.slice(-MAX_CHAT_ENTRIES)) {
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const entry = buildChatEntry(msg.agentLabel, msg.text, msg.cssColor, msg.timestamp);
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chatEntries.push(entry);
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$chatPanel.appendChild(entry);
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}
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$chatPanel.scrollTop = $chatPanel.scrollHeight;
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}
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function clearAllHistories() {
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const agentIds = [...AGENT_DEFS.map(d => d.id), 'sys'];
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for (const id of agentIds) {
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localStorage.removeItem(storageKey(id));
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chatHistory[id] = [];
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}
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while ($chatPanel.firstChild) $chatPanel.removeChild($chatPanel.firstChild);
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chatEntries.length = 0;
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}
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export function initUI() {
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renderAgentList();
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loadAllHistories();
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if ($clearBtn) {
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$clearBtn.addEventListener('click', clearAllHistories);
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}
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}
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function renderAgentList() {
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@@ -55,16 +133,15 @@ export function updateUI({ fps, agentCount, jobCount, connectionState }) {
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}
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/**
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* Append a line to the chat panel.
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* @param {string} agentLabel — display name
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* @param {string} message — message text (HTML-escaped before insertion)
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* @param {string} cssColor — CSS color string, e.g. '#00ff88'
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* Append a message to the chat panel and optionally persist it.
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* @param {string} agentLabel — display name
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* @param {string} message — raw text (HTML-escaped before insertion)
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* @param {string} cssColor — CSS color string e.g. '#00ff88'
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* @param {string} [agentId] — storage key; omit to skip persistence
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*/
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export function appendChatMessage(agentLabel, message, cssColor) {
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const color = cssColor || '#00ff41';
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const entry = document.createElement('div');
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entry.className = 'chat-entry';
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entry.innerHTML = `<span class="agent-name" style="color:${color}">${agentLabel}</span>: ${escapeHtml(message)}`;
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export function appendChatMessage(agentLabel, message, cssColor, agentId) {
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const timestamp = Date.now();
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const entry = buildChatEntry(agentLabel, message, cssColor, timestamp);
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chatEntries.push(entry);
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if (chatEntries.length > MAX_CHAT_ENTRIES) {
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@@ -74,6 +151,12 @@ export function appendChatMessage(agentLabel, message, cssColor) {
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$chatPanel.appendChild(entry);
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$chatPanel.scrollTop = $chatPanel.scrollHeight;
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if (agentId) {
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if (!chatHistory[agentId]) chatHistory[agentId] = [];
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chatHistory[agentId].push({ agentLabel, text: message, cssColor, agentId, timestamp });
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saveChatHistory(agentId, chatHistory[agentId]);
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}
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}
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function escapeHtml(str) {
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@@ -91,7 +91,7 @@ function handleMessage(msg) {
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case 'chat': {
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const def = agentById[msg.agentId];
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if (def && msg.text) {
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appendChatMessage(def.label, msg.text, colorToCss(def.color));
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appendChatMessage(def.label, msg.text, colorToCss(def.color), def.id);
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}
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break;
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}
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@@ -103,7 +103,7 @@ function handleMessage(msg) {
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}
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function logEvent(text) {
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appendChatMessage('SYS', text, colorToCss(0x003300));
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appendChatMessage('SYS', text, colorToCss(0x003300), 'sys');
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}
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export function getConnectionState() {
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