const logger = require('../../modules/colorfulLogger');

class CacheManager {
    constructor() {
        this.cache = new Map();
        logger.info('CacheManager initialized.');
    }

    get(key) {
        const cachedItem = this.cache.get(key);
        if (!cachedItem) {
            logger.debug(`Cache MISS for key: ${key}`);
            return null;
        }

        if (cachedItem.expire && Date.now() > cachedItem.expire) {
            logger.info(`Cache EXPIRED for key: ${key}`);
            this.cache.delete(key);
            return null;
        }

        logger.debug(`Cache HIT for key: ${key}`);
        return cachedItem.value;
    }

    set(key, value, ttl = 0) {
        logger.debug(`Caching data for key: ${key} with TTL: ${ttl}ms`);
        this.cache.set(key, {
            value: value,
            expire: ttl > 0 ? Date.now() + ttl : null,
        });
    }

    has(key) {
        return this.cache.has(key);
    }

    delete(key) {
        logger.debug(`Deleting cache for key: ${key}`);
        return this.cache.delete(key);
    }

    flush() {
        logger.info('Flushing all caches.');
        this.cache.clear();
    }

    get size() {
        return this.cache.size;
    }
}

const cacheManager = new CacheManager();
module.exports = cacheManager;