Progress countdown

progress_countdown.rb

# > ProgressCountDown.new.call { Model.where(state: [:pending, :waiting]).count }
# Things: |==============                                                                                                | (30693/224796)  ETA: 03:37:1

class ProgressCountDown
  def call
    total = yield
    progress =
      ProgressBar.create(
        title: "Things",
        total: total,
        format: "%t: |%B| (%c/%C) %E",
      )
    value = total
    while value > 0
      sleep 30
      value = yield
      progress.progress = total - value
    end
    progress.finish
  end
end