prompt-plus-plus-mcp/dist/cache.js

Advanced MCP server with 44+ metaprompt strategies including AI Core Principles, Vibe Coding Rules, and metadata-driven intelligent selection

import { logger } from './logger.js';
export class Cache {
    cache = new Map();
    defaultTtl;
    constructor(defaultTtl = 300000) {
        this.defaultTtl = defaultTtl;
    }
    set(key, data, ttl) {
        const entry = {
            data,
            timestamp: Date.now(),
            ttl: ttl || this.defaultTtl
        };
        this.cache.set(key, entry);
        logger.debug(`Cache set: ${key}`, { ttl: entry.ttl });
    }
    get(key) {
        const entry = this.cache.get(key);
        if (!entry) {
            logger.debug(`Cache miss: ${key}`);
            return null;
        }
        const now = Date.now();
        const age = now - entry.timestamp;
        if (entry.ttl && age > entry.ttl) {
            this.cache.delete(key);
            logger.debug(`Cache expired: ${key}`, { age, ttl: entry.ttl });
            return null;
        }
        logger.debug(`Cache hit: ${key}`, { age });
        return entry.data;
    }
    has(key) {
        const entry = this.cache.get(key);
        if (!entry)
            return false;
        const now = Date.now();
        const age = now - entry.timestamp;
        if (entry.ttl && age > entry.ttl) {
            this.cache.delete(key);
            return false;
        }
        return true;
    }
    delete(key) {
        const result = this.cache.delete(key);
        if (result) {
            logger.debug(`Cache deleted: ${key}`);
        }
        return result;
    }
    clear() {
        this.cache.clear();
        logger.debug('Cache cleared');
    }
    size() {
        return this.cache.size;
    }
    // Clean up expired entries
    cleanup() {
        const now = Date.now();
        let cleaned = 0;
        for (const [key, entry] of this.cache.entries()) {
            const age = now - entry.timestamp;
            if (entry.ttl && age > entry.ttl) {
                this.cache.delete(key);
                cleaned++;
            }
        }
        if (cleaned > 0) {
            logger.debug(`Cache cleanup: ${cleaned} entries removed`);
        }
        return cleaned;
    }
}
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