65 lines
1.6 KiB
TypeScript
65 lines
1.6 KiB
TypeScript
/**
|
|
* In-memory cache of sent message IDs per chat.
|
|
* Used to identify bot's own messages for reaction filtering ("own" mode).
|
|
*/
|
|
|
|
const TTL_MS = 24 * 60 * 60 * 1000; // 24 hours
|
|
|
|
type CacheEntry = {
|
|
messageIds: Set<number>;
|
|
timestamps: Map<number, number>;
|
|
};
|
|
|
|
const sentMessages = new Map<string, CacheEntry>();
|
|
|
|
function getChatKey(chatId: number | string): string {
|
|
return String(chatId);
|
|
}
|
|
|
|
function cleanupExpired(entry: CacheEntry): void {
|
|
const now = Date.now();
|
|
for (const [msgId, timestamp] of entry.timestamps) {
|
|
if (now - timestamp > TTL_MS) {
|
|
entry.messageIds.delete(msgId);
|
|
entry.timestamps.delete(msgId);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Record a message ID as sent by the bot.
|
|
*/
|
|
export function recordSentMessage(chatId: number | string, messageId: number): void {
|
|
const key = getChatKey(chatId);
|
|
let entry = sentMessages.get(key);
|
|
if (!entry) {
|
|
entry = { messageIds: new Set(), timestamps: new Map() };
|
|
sentMessages.set(key, entry);
|
|
}
|
|
entry.messageIds.add(messageId);
|
|
entry.timestamps.set(messageId, Date.now());
|
|
// Periodic cleanup
|
|
if (entry.messageIds.size > 100) {
|
|
cleanupExpired(entry);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check if a message was sent by the bot.
|
|
*/
|
|
export function wasSentByBot(chatId: number | string, messageId: number): boolean {
|
|
const key = getChatKey(chatId);
|
|
const entry = sentMessages.get(key);
|
|
if (!entry) return false;
|
|
// Clean up expired entries on read
|
|
cleanupExpired(entry);
|
|
return entry.messageIds.has(messageId);
|
|
}
|
|
|
|
/**
|
|
* Clear all cached entries (for testing).
|
|
*/
|
|
export function clearSentMessageCache(): void {
|
|
sentMessages.clear();
|
|
}
|