Files
beaver_project/app-instance/frontend/lib/chat-messages.ts

124 lines
3.2 KiB
TypeScript

import type { ChatMessage } from '@/types';
const INVISIBLE_CONTENT_CHARS = /[\u200B-\u200D\uFEFF]/g;
export const CHAT_WAITING_REFRESH_INTERVAL_MS = 1500;
export const CHAT_IDLE_REFRESH_INTERVAL_MS = 5000;
export function getSessionRefreshIntervalMs({
isLoading,
isThinking,
documentHidden,
}: {
isLoading: boolean;
isThinking: boolean;
documentHidden: boolean;
}): number | null {
if (documentHidden) {
return null;
}
if (isLoading || isThinking) {
return CHAT_WAITING_REFRESH_INTERVAL_MS;
}
return CHAT_IDLE_REFRESH_INTERVAL_MS;
}
export function normalizedMessageText(content: unknown): string {
if (typeof content === 'string') {
return content.replace(INVISIBLE_CONTENT_CHARS, '').trim();
}
if (content == null) {
return '';
}
return String(content).replace(INVISIBLE_CONTENT_CHARS, '').trim();
}
export function hasVisibleChatContent(msg: ChatMessage): boolean {
if (normalizedMessageText(msg.content)) {
return true;
}
return Boolean(msg.attachments?.length);
}
export function shouldDisplayChatMessage(msg: ChatMessage): boolean {
return msg.role !== 'assistant' || hasVisibleChatContent(msg);
}
export function messageFingerprint(msg: ChatMessage): string {
const attachmentKey = (msg.attachments ?? [])
.map((a) => `${a.file_id ?? ''}:${a.name}:${a.content_type}:${a.size ?? ''}`)
.join('|');
return `${msg.role}::${String(msg.content)}::${attachmentKey}`;
}
export function mergeServerWithPendingUsers(serverMessages: ChatMessage[], localMessages: ChatMessage[]): ChatMessage[] {
const counts = new Map<string, number>();
for (const message of serverMessages) {
const key = messageFingerprint(message);
counts.set(key, (counts.get(key) ?? 0) + 1);
}
const pendingUsers: ChatMessage[] = [];
for (const message of localMessages) {
const key = messageFingerprint(message);
const count = counts.get(key) ?? 0;
if (count > 0) {
counts.set(key, count - 1);
continue;
}
if (message.role === 'user') {
pendingUsers.push(message);
}
}
return [...serverMessages, ...pendingUsers];
}
export function shouldMergePendingUsers(
serverMessages: ChatMessage[],
localMessages: ChatMessage[],
waitingForReply: boolean
): boolean {
if (waitingForReply) {
return true;
}
const lastLocal = localMessages[localMessages.length - 1];
if (lastLocal?.role !== 'user') {
return false;
}
const counts = new Map<string, number>();
for (const message of serverMessages) {
const key = messageFingerprint(message);
counts.set(key, (counts.get(key) ?? 0) + 1);
}
for (const message of localMessages) {
if (message.role !== 'user') {
continue;
}
const key = messageFingerprint(message);
const count = counts.get(key) ?? 0;
if (count > 0) {
counts.set(key, count - 1);
continue;
}
return true;
}
return false;
}
export function getTaskCardMessageIndexes(messages: ChatMessage[]): Set<number> {
const latestByTask = new Map<string, number>();
messages.forEach((message, index) => {
if (message.role !== 'assistant' || !message.task_id) {
return;
}
latestByTask.set(message.task_id, index);
});
return new Set(latestByTask.values());
}