import _redis, { RedisClient } from 'redis';
import dotenv from 'dotenv';
import { promisify } from 'util';

dotenv.config();

export class Redis {
  redis: RedisClient;
  hdel: (hash: string, field: string) => Promise<any>;
  hget: (hash: string, field: string) => Promise<string>;
  hgetall: (key: string) => Promise<object>;
  hset: (hash: string, field: string, value: any) => Promise<any>;
  quit: () => Promise<void>;
  set: (
    key: string,
    value: any,
    mode?: string,
    duration?: number
  ) => Promise<any>;
  get: (key: string) => Promise<string>;
  del: (key: string) => Promise<number>;

  constructor() {
    this.redis = _redis.createClient({
      url: process.env.REDIS_URL,
    });
    this.hdel = promisify(this.redis.hdel).bind(this.redis);
    this.hget = promisify(this.redis.hget).bind(this.redis);
    this.hgetall = promisify(this.redis.hgetall).bind(this.redis);
    this.hset = promisify(this.redis.hset).bind(this.redis);
    this.set = promisify(this.redis.set).bind(this.redis);
    this.get = promisify(this.redis.get).bind(this.redis);
    this.del = promisify(this.redis.del).bind(this.redis);
    this.quit = promisify(this.redis.quit).bind(this.redis);
  }
}

export const redisClient = new Redis();