import NodeCache from 'node-cache';
import { logger } from '../utils/logger.js';
// Cache TTLs in seconds
const CACHE_TTL = {
LISTAGEM: 15 * 60, // 15 minutes for listings
DETALHE: 60 * 60, // 1 hour for details
RELATORIO: 24 * 60 * 60 // 24 hours for reports
};
const cache = new NodeCache({
stdTTL: CACHE_TTL.LISTAGEM,
checkperiod: 120,
useClones: false
});
export type CacheType = 'LISTAGEM' | 'DETALHE' | 'RELATORIO';
export function getCached<T>(key: string): T | undefined {
const value = cache.get<T>(key);
if (value) {
logger.debug({ key }, 'Cache hit');
}
return value;
}
export function setCache<T>(key: string, value: T, type: CacheType = 'LISTAGEM'): void {
const ttl = CACHE_TTL[type];
cache.set(key, value, ttl);
logger.debug({ key, ttl }, 'Cache set');
}
export function invalidateCache(pattern?: string): void {
if (pattern) {
const keys = cache.keys().filter(k => k.includes(pattern));
keys.forEach(k => cache.del(k));
logger.debug({ pattern, count: keys.length }, 'Cache invalidated by pattern');
} else {
cache.flushAll();
logger.debug('Cache flushed');
}
}
export function getCacheStats() {
return cache.getStats();
}
