const { redisClient } = require('../redis');
const debug = require('debug')('soundbirder:cache');

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


async function getCached(request) {
    let cached = await redisClient.pget(request);
    if (cached) {
        debug("Cached", request);
        return JSON.parse(cached);
    }
    return null;
}

function push(key, value) {
    redisClient.lpush(key, JSON.stringify(value));
}

async function pop(key) {
    const cached = await redisClient.lpop(key);
    debug("Pop cached", cached);
    if (cached) {
        return JSON.parse(cached);
    }
    return null;
}

module.exports = {
    cacheResponse,
    getCached,
    push,
    pop
}