import { Logger, Provider } from '@nestjs/common';
import Redis from 'ioredis';

export const VALKEY = Symbol('VALKEY');

export const ValkeyProvider: Provider = {
  provide: VALKEY,
  useFactory: (): Redis => {
    const url = process.env.VALKEY_URL || 'redis://valkey:6379';
    const logger = new Logger('Valkey');
    const client = new Redis(url, {
      lazyConnect: false,
      maxRetriesPerRequest: 3,
    });
    client.on('connect', () => logger.log(`connected ${url}`));
    client.on('error', (err) => logger.warn(`error: ${err.message}`));
    return client;
  },
};