Very simple scaling algorithm

scalingEngine.js

scalingEngine.getNumberOfNeededEncoders = (numberOfEncodingTasks, numberOfEncoders) => {
  if (numberOfEncodingTasks >= 0 && numberOfEncodingTasks <= 10) {
    if (numberOfEncoders >= 1 && numberOfEncodingTasks < 1) {
      return 0;
    }
    return numberOfEncoders;
  }

  if (numberOfEncodingTasks > 10 && numberOfEncodingTasks <= 50) {
    if (numberOfEncoders < 4) {
      return 4;
    }
    return numberOfEncoders;
  }

  if (numberOfEncodingTasks > 50) {
    return 6;
  }
};