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

81 lines
2.1 KiB
TypeScript

import type { ChatMessage } from '@/types';
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());
}