module Byebug::Helpers::ToggleHelper

def enable_disable_breakpoints(is_enable, args)
  return errmsg(pr('toggle.errors.no_breakpoints')) if Breakpoint.none?
  all_breakpoints = Byebug.breakpoints.sort_by(&:id)
  if args.nil?
    selected_breakpoints = all_breakpoints
  else
    selected_ids = []
    args.split(/ +/).each do |pos|
      last_id = all_breakpoints.last.id
      pos, err = get_int(pos, "#{is_enable} breakpoints", 1, last_id)
      return errmsg(err) unless pos
      selected_ids << pos
    end
    selected_breakpoints = all_breakpoints.select do |b|
      selected_ids.include?(b.id)
    end
  end
  selected_breakpoints.each do |b|
    enabled = ('enable' == is_enable)
    if enabled && !syntax_valid?(b.expr)
      return errmsg(pr('toggle.errors.expression', expr: b.expr))
    end
    b.enabled = enabled
  end
end

def enable_disable_display(is_enable, args)
  return errmsg(pr('toggle.errors.no_display')) if 0 == n_displays
  selected_displays = args ? args.split(/ +/) : [1..n_displays + 1]
  selected_displays.each do |pos|
    pos, err = get_int(pos, "#{is_enable} display", 1, n_displays)
    return errmsg(err) unless err.nil?
    Byebug.displays[pos - 1][0] = ('enable' == is_enable)
  end
end

def n_displays
  Byebug.displays.size
end