import Redis from 'ioredis';

const globalForRedis = globalThis as unknown as { redis?: Redis };

const redis =
  globalForRedis.redis ??
  new Redis({
    host: process.env.REDIS_HOST ?? 'localhost',
    port: parseInt(process.env.REDIS_PORT ?? '6379'),
    password: process.env.REDIS_PASSWORD,
    lazyConnect: true,
    retryStrategy(times) {
      if (times > 10) {
        console.error('[redis] Max retries exceeded, will retry in 30s');
        return 30000;
      }
      return Math.min(times * 200, 2000);
    },
    maxRetriesPerRequest: 3,
  });

redis.on('error', (err) => {
  console.error('[redis] Connection error:', err.message);
});

redis.on('connect', () => {
  console.log('[redis] Connected');
});

if (process.env.NODE_ENV !== 'production') globalForRedis.redis = redis;

export { redis };