Files
CHOMPStation2/tgui/packages/tgui-panel/chat/renderer.tsx
2025-03-02 17:22:34 +01:00

936 lines
28 KiB
TypeScript

/**
* @file
* @copyright 2020 Aleksej Komarov
* @license MIT
*/
import { createRoot } from 'react-dom/client';
import { createLogger } from 'tgui/logging';
import { Tooltip } from 'tgui-core/components';
import { EventEmitter } from 'tgui-core/events';
import { classes } from 'tgui-core/react';
import { exportToDisk } from './chatExport';
import {
IMAGE_RETRY_DELAY,
IMAGE_RETRY_LIMIT,
IMAGE_RETRY_MESSAGE_AGE,
MESSAGE_PRUNE_INTERVAL,
MESSAGE_TYPE_INTERNAL,
MESSAGE_TYPE_UNKNOWN,
MESSAGE_TYPES,
} from './constants';
import {
adminPageOnly,
canPageAcceptType,
canStoreType,
createMessage,
isSameMessage,
serializeMessage,
typeIsImportant,
} from './model';
import { highlightNode, linkifyNode } from './replaceInTextNode';
import type { message, Page } from './types';
const logger = createLogger('chatRenderer');
// We consider this as the smallest possible scroll offset
// that is still trackable.
const SCROLL_TRACKING_TOLERANCE = 24;
// List of injectable component names to the actual type
export const TGUI_CHAT_COMPONENTS = {
Tooltip,
};
// List of injectable attibute names mapped to their proper prop
// We need this because attibutes don't support lowercase names
export const TGUI_CHAT_ATTRIBUTES_TO_PROPS = {
position: 'position',
content: 'content',
};
const findNearestScrollableParent = (startingNode: HTMLElement) => {
const body = document.body;
let node = startingNode;
while (node && node !== body) {
// This definitely has a vertical scrollbar, because it reduces
// scrollWidth of the element. Might not work if element uses
// overflow: hidden.
if (node.scrollWidth < node.offsetWidth) {
return node;
}
node = node.parentNode as HTMLElement;
}
return window;
};
const createHighlightNode = (text: string, color: string): HTMLElement => {
const node = document.createElement('span');
node.className = 'Chat__highlight';
node.setAttribute('style', 'background-color:' + color);
node.textContent = text;
return node;
};
export const createMessageNode = (): HTMLElement => {
const node = document.createElement('div');
node.className = 'ChatMessage';
return node;
};
const interleaveMessage = (
node: HTMLElement,
interleave: boolean,
color: string,
): HTMLElement => {
if (interleave) {
node.setAttribute('style', 'background-color:' + color);
node.setAttribute('display', 'block');
} else {
node.removeAttribute('style');
node.removeAttribute('display');
}
return node;
};
const stripNewLineFlood = (text: string): string => {
text = text.replace(/((\n)\2{2})\2+/g, '$1');
return text;
};
const createReconnectedNode = (): HTMLElement => {
const node = document.createElement('div');
node.className = 'Chat__reconnected';
return node;
};
const getChatTimestamp = (message: message): string => {
let stamp = '';
if (message.createdAt) {
const dateTime = new Date(message.createdAt);
stamp =
'[' +
dateTime.toLocaleTimeString([], {
hour: '2-digit',
minute: '2-digit',
}) +
']&nbsp;';
}
return stamp;
};
const handleImageError = (e: ErrorEvent) => {
setTimeout(() => {
/** @type {HTMLImageElement} */
const node = e.target as HTMLImageElement;
if (!node) {
return;
}
const attempts =
parseInt(node.getAttribute('data-reload-n') || '', 10) || 0;
if (attempts >= IMAGE_RETRY_LIMIT) {
// logger.error(`failed to load an image after ${attempts} attempts`);
return;
}
const src = node.src;
node.src = '';
node.src = src + '#' + attempts;
node.setAttribute('data-reload-n', (attempts + 1).toString());
}, IMAGE_RETRY_DELAY);
};
/**
* Assigns a "times-repeated" badge to the message.
*/
const updateMessageBadge = (message: message) => {
const { node, times } = message;
if (!node || !times || typeof node === 'string') {
// Nothing to update
return;
}
const foundBadge = (node as HTMLElement).querySelector('.Chat__badge');
const badge = foundBadge || document.createElement('div');
badge.textContent = times.toString();
badge.className = classes(['Chat__badge', 'Chat__badge--animate']);
requestAnimationFrame(() => {
badge.className = 'Chat__badge';
});
if (!foundBadge) {
node.appendChild(badge);
}
};
class ChatRenderer {
loaded: boolean;
rootNode: HTMLElement | null;
queue: message[];
messages: message[];
archivedMessages: message[];
visibleMessages: message[];
page: Page | null;
events: EventEmitter;
prependTimestamps: boolean;
visibleMessageLimit: number;
combineMessageLimit: number;
combineIntervalLimit: number;
persistentMessageLimit: number;
logLimit: number;
logEnable: boolean;
roundId: null | number;
storedTypes: Record<string, string>;
interleave: boolean;
interleaveEnabled: boolean;
interleaveColor: string;
hideImportantInAdminTab: boolean;
scrollNode: HTMLElement | null;
scrollTracking: boolean;
handleScroll: (type: any) => void;
ensureScrollTracking: () => void;
highlightParsers:
| {
highlightWords: string;
highlightRegex: RegExp;
highlightColor: string;
highlightWholeMessage: boolean;
highlightBlacklist: string;
blacklistregex: RegExp;
}[]
| null;
databaseBackendEnabled: boolean;
constructor() {
/** @type {HTMLElement} */
this.loaded = false;
/** @type {HTMLElement} */
this.rootNode = null;
this.queue = [];
this.messages = [];
this.archivedMessages = [];
this.visibleMessages = [];
this.page = null;
this.events = new EventEmitter();
// Adjustables
this.prependTimestamps = false;
this.visibleMessageLimit = 2500;
this.combineMessageLimit = 5;
this.combineIntervalLimit = 5;
this.logLimit = 0;
this.logEnable = true;
this.roundId = null;
this.storedTypes = {};
this.interleave = false;
this.interleaveEnabled = false;
this.interleaveColor = '#909090';
this.hideImportantInAdminTab = false;
this.databaseBackendEnabled = false;
// Scroll handler
/** @type {HTMLElement} */
this.scrollNode = null;
this.scrollTracking = true;
this.handleScroll = (type) => {
const node = this.scrollNode;
if (node) {
const height = node.scrollHeight;
const bottom = node.scrollTop + node.offsetHeight;
const scrollTracking =
Math.abs(height - bottom) < SCROLL_TRACKING_TOLERANCE;
if (scrollTracking !== this.scrollTracking) {
this.scrollTracking = scrollTracking;
this.events.emit('scrollTrackingChanged', scrollTracking);
logger.debug('tracking', this.scrollTracking);
}
}
};
this.ensureScrollTracking = () => {
if (this.scrollTracking) {
this.scrollToBottom();
}
};
// Periodic message pruning
setInterval(() => this.pruneMessages(), MESSAGE_PRUNE_INTERVAL);
}
isReady() {
return this.loaded && this.rootNode && this.page;
}
mount(node) {
// Mount existing root node on top of the new node
if (this.rootNode) {
node.appendChild(this.rootNode);
}
// Initialize the root node
else {
this.rootNode = node;
}
// Find scrollable parent
if (this.rootNode) {
this.scrollNode = findNearestScrollableParent(
this.rootNode,
) as HTMLElement;
}
if (this.scrollNode) {
this.scrollNode.addEventListener('scroll', this.handleScroll);
}
setTimeout(() => {
this.scrollToBottom();
});
// Flush the queue
this.tryFlushQueue();
}
onStateLoaded() {
this.loaded = true;
this.tryFlushQueue();
}
tryFlushQueue(doArchive = false) {
if (this.isReady() && this.queue.length > 0) {
this.processBatch(this.queue, { doArchive: doArchive });
this.queue = [];
}
}
assignStyle(style = {}) {
for (let key of Object.keys(style)) {
if (this.rootNode) {
this.rootNode.style.setProperty(key, style[key]);
}
}
}
setHighlight(highlightSettings, highlightSettingById) {
this.highlightParsers = null;
if (!highlightSettings) {
return;
}
highlightSettings.map((id) => {
const setting = highlightSettingById[id];
const text = setting.highlightText;
const blacklist = setting.blacklistText;
const highlightColor = setting.highlightColor;
const highlightBlacklist = setting.highlightBlacklist;
const highlightWholeMessage = setting.highlightWholeMessage;
const matchWord = setting.matchWord;
const matchCase = setting.matchCase;
const allowedRegex = /^[a-z0-9_\-$/^[\s\]\\]+$/gi;
const regexEscapeCharacters = /[!#$%^&*)(+=.<>{}[\]:;'"|~`_\-\\/]/g;
const lines = String(text)
.split(',')
.map((str) => str.trim())
.filter(
(str) =>
// Must be longer than one character
str &&
str.length > 1 &&
// Must be alphanumeric (with some punctuation)
allowedRegex.test(str) &&
// Reset lastIndex so it does not mess up the next word
((allowedRegex.lastIndex = 0) || true),
);
let highlightWords;
let highlightRegex;
// Nothing to match, reset highlighting
if (lines.length === 0) {
return;
}
const blacklistLines = String(blacklist)
.split(',')
.map((str) => str.trim())
.filter(
(str) =>
// Must be longer than one character
str &&
str.length > 1 &&
// Must be alphanumeric (with some punctuation)
allowedRegex.test(str) &&
// Reset lastIndex so it does not mess up the next word
((allowedRegex.lastIndex = 0) || true),
);
let blacklistWords;
let blacklistregex;
if (highlightBlacklist && blacklistLines.length > 0) {
let blacklistRegexExpressions: string[] = [];
for (let line of blacklistLines) {
// Regex expression syntax is /[exp]/
if (line.charAt(0) === '/' && line.charAt(line.length - 1) === '/') {
const expr = line.substring(1, line.length - 1);
// Check if this is more than one character
if (/^(\[.*\]|\\.|.)$/.test(expr)) {
continue;
}
blacklistRegexExpressions.push(expr);
} else {
// Lazy init
if (!blacklistWords) {
blacklistWords = [];
}
// We're not going to let regex characters fuck up our RegEx operation.
line = line.replace(regexEscapeCharacters, '\\$&');
blacklistWords.push('^\\s*' + line);
blacklistWords.push('^\\[\\d+:\\d+\\]\\s*' + line);
}
}
const regexStrBL = blacklistWords.join('|');
const flagsBL = 'i';
// We wrap this in a try-catch to ensure that broken regex doesn't break
// the entire chat.
try {
blacklistregex = new RegExp('(' + regexStrBL + ')', flagsBL);
} catch {
// We just reset it if it's invalid.
blacklistregex = null;
}
}
let regexExpressions: string[] = [];
// Organize each highlight entry into regex expressions and words
for (let line of lines) {
// Regex expression syntax is /[exp]/
if (line.charAt(0) === '/' && line.charAt(line.length - 1) === '/') {
const expr = line.substring(1, line.length - 1);
// Check if this is more than one character
if (/^(\[.*\]|\\.|.)$/.test(expr)) {
continue;
}
regexExpressions.push(expr);
} else {
// Lazy init
if (!highlightWords) {
highlightWords = [];
}
// We're not going to let regex characters fuck up our RegEx operation.
line = line.replace(regexEscapeCharacters, '\\$&');
highlightWords.push(line);
}
}
const regexStr = regexExpressions.join('|');
const flags = 'g' + (matchCase ? '' : 'i');
// We wrap this in a try-catch to ensure that broken regex doesn't break
// the entire chat.
try {
// setting regex overrides matchword
if (regexStr) {
highlightRegex = new RegExp('(' + regexStr + ')', flags);
} else {
const pattern = `${matchWord ? '\\b' : ''}(${highlightWords.join(
'|',
)})${matchWord ? '\\b' : ''}`;
highlightRegex = new RegExp(pattern, flags);
}
} catch {
// We just reset it if it's invalid.
highlightRegex = null;
}
// Lazy init
if (!this.highlightParsers) {
this.highlightParsers = [];
}
this.highlightParsers.push({
highlightWords,
highlightRegex,
highlightColor,
highlightWholeMessage,
highlightBlacklist,
blacklistregex,
});
});
}
scrollToBottom() {
// scrollHeight is always bigger than scrollTop and is
// automatically clamped to the valid range.
if (this.scrollNode) {
this.scrollNode.scrollTop = this.scrollNode.scrollHeight;
}
}
setVisualChatLimits(
visibleMessageLimit: number,
combineMessageLimit: number,
combineIntervalLimit: number,
logEnable: boolean,
logLimit: number,
storedTypes: Record<string, string>,
roundId: number | null,
prependTimestamps: boolean,
hideImportantInAdminTab: boolean,
interleaveEnabled: boolean,
interleaveColor: string,
databaseBackendEnabled: boolean,
) {
this.visibleMessageLimit = visibleMessageLimit;
this.combineMessageLimit = combineMessageLimit;
this.combineIntervalLimit = combineIntervalLimit;
this.logEnable = logEnable;
this.logLimit = logLimit;
this.storedTypes = storedTypes;
this.roundId = roundId;
this.prependTimestamps = prependTimestamps;
this.hideImportantInAdminTab = hideImportantInAdminTab;
this.interleaveEnabled = interleaveEnabled;
this.interleaveColor = interleaveColor;
this.databaseBackendEnabled = databaseBackendEnabled;
}
changePage(page: Page) {
if (!this.isReady()) {
this.page = page;
this.tryFlushQueue();
return;
}
this.page = page;
// Fast clear of the root node
if (this.rootNode) {
this.rootNode.textContent = '';
}
this.visibleMessages = [];
// Re-add message nodes
const fragment = document.createDocumentFragment();
let node;
for (let message of this.messages) {
if (
canPageAcceptType(page, message.type) &&
!(
adminPageOnly(page) &&
typeIsImportant(message.type) &&
this.hideImportantInAdminTab
)
) {
node = message.node;
node = interleaveMessage(
node,
this.interleaveEnabled && this.interleave,
this.interleaveColor,
);
this.interleave = !this.interleave;
fragment.appendChild(node);
this.visibleMessages.push(message);
}
}
if (node && this.rootNode) {
this.rootNode.appendChild(fragment);
node.scrollIntoView();
}
}
getCombinableMessage(predicate: message) {
const now = Date.now();
const len = this.visibleMessages.length;
const from = len - 1;
const to = Math.max(0, len - this.combineMessageLimit);
for (let i = from; i >= to; i--) {
const message = this.visibleMessages[i];
const matches =
// Is not an internal message
!message.type.startsWith(MESSAGE_TYPE_INTERNAL) &&
// Text payload must fully match
isSameMessage(message, predicate) &&
// Must land within the specified time window
now < message.createdAt + this.combineIntervalLimit * 1000;
if (matches) {
return message;
}
}
return null;
}
processBatch(
batch: message[],
options: {
prepend?: boolean;
notifyListeners?: boolean;
doArchive?: boolean;
} = {},
) {
const { prepend, notifyListeners = true, doArchive = false } = options;
const now = Date.now();
// Queue up messages until chat is ready
if (!this.isReady()) {
if (prepend) {
this.queue = [...batch, ...this.queue];
} else {
this.queue = [...this.queue, ...batch];
}
return;
}
// Insert messages
const fragment = document.createDocumentFragment();
const countByType = {};
let node;
for (let payload of batch) {
const message = createMessage(payload);
// Combine messages
const combinable = this.getCombinableMessage(message);
if (combinable) {
combinable.times = (combinable.times || 1) + 1;
updateMessageBadge(combinable);
continue;
}
// Reuse message node
if (message.node) {
node = message.node;
}
// Reconnected
else if (message.type === 'internal/reconnected') {
node = createReconnectedNode();
}
// Create message node
else {
node = createMessageNode();
// Payload is plain text
if (message.text) {
message.text = stripNewLineFlood(message.text); // Do not allow more than 3 new lines in a row
node.textContent = this.prependTimestamps
? getChatTimestamp(message) + message.text
: message.text;
}
// Payload is HTML
else if (message.html) {
message.html = stripNewLineFlood(message.html); // Do not allow more than 3 new lines in a row
node.innerHTML = this.prependTimestamps
? getChatTimestamp(message) + message.html
: message.html;
} else {
logger.error('Error: message is missing text payload', message);
}
// Get all nodes in this message that want to be rendered like jsx
const nodes = node.querySelectorAll('[data-component]');
for (let i = 0; i < nodes.length; i++) {
const childNode = nodes[i];
const targetName = childNode.getAttribute('data-component');
// Let's pull out the attibute info we need
let outputProps = {};
for (let j = 0; j < childNode.attributes.length; j++) {
const attribute = childNode.attributes[j];
let working_value = attribute.nodeValue;
// We can't do the "if it has no value it's truthy" trick
// Because getAttribute returns "", not null. Hate IE
if (working_value === '$true') {
working_value = true;
} else if (working_value === '$false') {
working_value = false;
} else if (!isNaN(working_value)) {
const parsed_float = parseFloat(working_value);
if (!isNaN(parsed_float)) {
working_value = parsed_float;
}
}
let canon_name = attribute.nodeName.replace('data-', '');
// html attributes don't support upper case chars, so we need to map
canon_name = TGUI_CHAT_ATTRIBUTES_TO_PROPS[canon_name];
outputProps[canon_name] = working_value;
}
const oldHtml = { __html: childNode.innerHTML };
while (childNode.firstChild) {
childNode.removeChild(childNode.firstChild);
}
const Element = TGUI_CHAT_COMPONENTS[targetName];
const reactRoot = createRoot(childNode);
/* eslint-disable react/no-danger */
reactRoot.render(
<Element {...outputProps}>
<span dangerouslySetInnerHTML={oldHtml} />
</Element>,
childNode,
);
/* eslint-enable react/no-danger */
}
// Highlight text
if (!message.avoidHighlighting && this.highlightParsers) {
this.highlightParsers.map((parser) => {
if (
!(
parser.highlightBlacklist &&
parser.blacklistregex &&
parser.blacklistregex.test(node.textContent)
)
) {
const highlighted = highlightNode(
node,
parser.highlightRegex,
parser.highlightWords,
(text) => createHighlightNode(text, parser.highlightColor),
);
if (highlighted && parser.highlightWholeMessage) {
node.className += ' ChatMessage--highlighted';
}
}
});
}
// Linkify text
const linkifyNodes = node.querySelectorAll('.linkify');
for (let i = 0; i < linkifyNodes.length; ++i) {
linkifyNode(linkifyNodes[i]);
}
// Assign an image error handler
if (now < message.createdAt + IMAGE_RETRY_MESSAGE_AGE) {
const imgNodes = node.querySelectorAll('img');
for (let i = 0; i < imgNodes.length; i++) {
const imgNode = imgNodes[i];
imgNode.addEventListener('error', handleImageError);
}
}
}
// Store the node in the message
message.node = node;
// Query all possible selectors to find out the message type
if (!message.type) {
const typeDef = MESSAGE_TYPES.find(
(typeDef) => typeDef.selector && node.querySelector(typeDef.selector),
);
message.type = typeDef?.type || MESSAGE_TYPE_UNKNOWN;
}
updateMessageBadge(message);
if (!countByType[message.type]) {
countByType[message.type] = 0;
}
countByType[message.type] += 1;
// TODO: Detect duplicates
this.messages.push(message);
if (
doArchive &&
this.logEnable &&
!this.databaseBackendEnabled &&
this.storedTypes &&
canStoreType(this.storedTypes, message.type)
) {
message.roundId = this.roundId;
if (
this.logLimit > 0 &&
this.archivedMessages.length >= this.logLimit + 1
) {
this.archivedMessages = this.archivedMessages.slice(
-(this.logLimit - 1),
);
} else if (
this.logLimit > 0 &&
this.archivedMessages.length >= this.logLimit
) {
this.archivedMessages.shift();
}
this.archivedMessages.push(serializeMessage(message, true)); // TODO: Actually having a better message archiving maybe for exports?
}
if (
this.page &&
canPageAcceptType(this.page, message.type) &&
!(
adminPageOnly(this.page) &&
typeIsImportant(message.type) &&
this.hideImportantInAdminTab
)
) {
node = interleaveMessage(
node,
this.interleaveEnabled && this.interleave,
this.interleaveColor,
);
this.interleave = !this.interleave;
fragment.appendChild(node);
this.visibleMessages.push(message);
}
}
if (node && this.rootNode) {
const firstChild = this.rootNode.childNodes[0];
if (prepend && firstChild) {
this.rootNode.insertBefore(fragment, firstChild);
} else {
this.rootNode.appendChild(fragment);
}
if (this.scrollTracking) {
setTimeout(() => this.scrollToBottom());
}
}
// Notify listeners that we have processed the batch
if (notifyListeners) {
this.events.emit('batchProcessed', countByType);
}
}
pruneMessages() {
if (!this.isReady()) {
return;
}
// Delay pruning because user is currently interacting
// with chat history
if (!this.scrollTracking) {
logger.debug('pruning delayed');
return;
}
// Visible messages
{
const messages = this.visibleMessages;
const fromIndex = Math.max(0, messages.length - this.visibleMessageLimit);
if (fromIndex > 0) {
this.visibleMessages = messages.slice(fromIndex);
for (let i = 0; i < fromIndex; i++) {
const message = messages[i];
if (this.rootNode && message.node) {
this.rootNode.removeChild(message.node as Node);
}
// Mark this message as pruned
message.node = 'pruned';
}
// Remove pruned messages from the message array
this.messages = this.messages.filter(
(message) => message.node !== 'pruned',
);
logger.log(`pruned ${fromIndex} visible messages`);
}
}
// All messages
{
const fromIndex = Math.max(
0,
this.messages.length - this.persistentMessageLimit,
);
if (fromIndex > 0) {
this.messages = this.messages.slice(fromIndex);
logger.log(`pruned ${fromIndex} stored messages`);
}
}
}
rebuildChat(rebuildLimit: number) {
if (!this.isReady()) {
return;
}
// Make a copy of messages
const fromIndex = Math.max(0, this.messages.length - rebuildLimit);
const messages = this.messages.slice(fromIndex);
// Remove existing nodes
for (let message of messages) {
message.node = undefined;
}
// Fast clear of the root node
if (this.rootNode) {
this.rootNode.textContent = '';
}
this.messages = [];
this.visibleMessages = [];
// Repopulate the chat log
this.processBatch(messages, {
notifyListeners: false,
});
}
saveToDisk(
logLineCount: number = 0,
startLine: number = 0,
endLine: number = 0,
startRound: number = 0,
endRound: number = 0,
) {
// Compile currently loaded stylesheets as CSS text
let cssText = '';
const styleSheets = document.styleSheets;
for (let i = 0; i < styleSheets.length; i++) {
const cssRules = styleSheets[i].cssRules;
for (let i = 0; i < cssRules.length; i++) {
const rule = cssRules[i];
if (rule && typeof rule.cssText === 'string') {
cssText += rule.cssText + '\n';
}
}
}
cssText += 'body, html { background-color: #141414 }\n';
// Compile chat log as HTML text
if (this.databaseBackendEnabled) {
exportToDisk(
cssText,
startRound,
endRound,
this.prependTimestamps,
this.page,
);
} else {
// Fetch from chat storage
let messagesHtml = '';
let tmpMsgArray: message[] = [];
if (startLine || endLine) {
if (!endLine) {
tmpMsgArray = this.archivedMessages.slice(startLine);
} else {
tmpMsgArray = this.archivedMessages.slice(startLine, endLine);
}
if (logLineCount > 0) {
tmpMsgArray = tmpMsgArray.slice(-logLineCount);
}
} else if (logLineCount > 0) {
tmpMsgArray = this.archivedMessages.slice(-logLineCount);
} else {
tmpMsgArray = this.archivedMessages;
}
// for (let message of this.visibleMessages) { // TODO: Actually having a better message archiving maybe for exports?
for (let message of tmpMsgArray) {
// Filter messages according to active tab for export
if (this.page && canPageAcceptType(this.page, message.type)) {
messagesHtml += message.html + '\n';
}
// if (message.node) {
// messagesHtml += message.node.outerHTML + '\n';
// }
}
// Create a page
const pageHtml =
'<!doctype html>\n' +
'<html>\n' +
'<head>\n' +
'<title>SS13 Chat Log</title>\n' +
'<style>\n' +
cssText +
'</style>\n' +
'</head>\n' +
'<body>\n' +
'<div class="Chat">\n' +
messagesHtml +
'</div>\n' +
'</body>\n' +
'</html>\n';
// Create and send a nice blob
const blob = new Blob([pageHtml], { type: 'text/plain' });
const timestamp = new Date()
.toISOString()
.substring(0, 19)
.replace(/[-:]/g, '')
.replace('T', '-');
Byond.saveBlob(blob, `ss13-chatlog-${timestamp}.html`, '.html');
}
}
purgeMessageArchive() {
this.archivedMessages = [];
}
getStoredMessages() {
return this.archivedMessages.length;
}
}
type ChatWindow = Window &
typeof globalThis & {
__chatRenderer__: ChatRenderer;
};
// Make chat renderer global so that we can continue using the same
// instance after hot code replacement.
const chatWindow = window as ChatWindow;
if (!chatWindow.__chatRenderer__) {
chatWindow.__chatRenderer__ = new ChatRenderer();
}
/** @type {ChatRenderer} */
export const chatRenderer = chatWindow.__chatRenderer__;