class ProgressBar::Components::Bar

def bar(length)
  self.length = length
  standard_complete_string
end

def bar_with_percentage(length)
  self.length = length
  integrated_percentage_complete_string
end

def complete_bar(length)
  self.length = length
  to_s(:format => :standard)
end

def complete_bar_with_percentage(length)
  self.length = length
  to_s(:format => :integrated_percentage)
end

def completed_length
  (length * progress.percentage_completed / 100).floor
end

def incomplete_space(length)
  self.length = length
  if progress.unknown?
    unknown_string
  else
    incomplete_string
  end
end

def incomplete_string
  remainder_mark * (length - completed_length)
end

def initialize(options = {})
  self.upa_steps      = options[:unknown_progress_animation_steps] || DEFAULT_UPA_STEPS
  self.progress_mark  = options[:progress_mark]  || DEFAULT_PROGRESS_MARK
  self.remainder_mark = options[:remainder_mark] || DEFAULT_REMAINDER_MARK
  self.progress       = options[:progress]
  self.length         = options[:length]
end

def integrated_percentage_complete_string
  return standard_complete_string if completed_length < 5
  " #{progress.percentage_completed} ".to_s.center(completed_length, progress_mark)
end

def standard_complete_string
  progress_mark * completed_length
end

def to_s(options = { :format => :standard })
  if progress.unknown?
    unknown_string
  elsif options[:format] == :standard
    "#{standard_complete_string}#{incomplete_string}"
  elsif options[:format] == :integrated_percentage
    "#{integrated_percentage_complete_string}#{incomplete_string}"
  end
end

def unknown_progress_frame
  current_animation_step = progress.progress % upa_steps.size
  upa_steps[current_animation_step]
end

def unknown_string
  unknown_frame_string = unknown_progress_frame * ((length / upa_steps.size) + 2)
  unknown_frame_string[0, length]
end