require('dotenv').config();
const debug = require('debug')('soundbirder:cache');
const redis = require('redis');
[redisHost, redisPort] = [process.env.REDIS_HOST, process.env.REDIS_PORT];
const redisClient = redis.createClient(redisPort, redisHost);

(async () => {
    redisClient.connect();
})();

function cacheResponse(request, response) {
    debug("Caching response", request);
    redisClient.set(request, JSON.stringify(response));
}

async function getCached(request) {
    debug("Getting cached response", request);
    const cached = await redisClient.get(request);
    if (cached) {
        return JSON.parse(cached);
    }
    return null;
}

module.exports = {
    cacheResponse,
    getCached
}