module MailerHelper
  def sendgrid_substitute(arg1, arg2)
    @vars = Hash.new unless @vars
    @vars[arg1] = arg2[0]
  end

  def latency_info(latency_data)
    latency_scores = {
      good: { label: 'GOOD', min: 0, max: 40 },
      fair: { label: 'FAIR', min: 40, max: 60 },
      high: { label: 'HIGH', min: 60, max: 10000000 },
      me:   { label: 'ME', min: -1, max: -1 },
      unknown: { label: 'UNKNOWN', min: -2, max: -2 }
    }
    
    total_latency = latency_data[:ars_internet_latency].round + latency_data[:audio_latency].round;

    lbl = if (total_latency >= latency_scores[:good][:min] && total_latency <= latency_scores[:good][:max])
      latency_scores[:good][:label]
    elsif (total_latency > latency_scores[:fair][:min] && total_latency <= latency_scores[:fair][:max])
      latency_scores[:fair][:label]
    elsif (total_latency > latency_scores[:fair][:min] && total_latency <= latency_scores[:fair][:max])
      latency_scores[:fair][:label]
    elsif (total_latency > latency_scores[:high][:min])
      latency_scores[:high][:label]
    else
      latency_scores[:unknown][:label]
    end

    lbl.titleize
  end
end