'use strict';

const max = 1000000;
const fastqueue = require('./')(worker, 1);
const { promisify } = require('util');
const immediate = promisify(setImmediate);
const qPromise = require('./').promise(immediate, 1);
const async = require('async');
const neo = require('neo-async');
const asyncqueue = async.queue(worker, 1);
const neoqueue = neo.queue(worker, 1);

function bench(func, done) {
  const key = max + '*' + func.name;
  let count = -1;

  console.time(key);
  end();

  function end() {
    if (++count < max) {
      func(end);
    } else {
      console.timeEnd(key);
      if (done) {
        done();
      }
    }
  }
}

function benchFastQ(done) {
  fastqueue.push(42, done);
}

function benchAsyncQueue(done) {
  asyncqueue.push(42, done);
}

function benchNeoQueue(done) {
  neoqueue.push(42, done);
}

function worker(arg, cb) {
  setImmediate(cb);
}

function benchSetImmediate(cb) {
  worker(42, cb);
}

function benchFastQPromise(done) {
  qPromise.push(42).then(function () {
    done();
  }, done);
}

function runBench(done) {
  async.eachSeries(
    [
      benchSetImmediate,
      benchFastQ,
      benchNeoQueue,
      benchAsyncQueue,
      benchFastQPromise,
    ],
    bench,
    done
  );
}

runBench(runBench);