gitlab-org--gitlab-foss/app/helpers/issuables_helper.rb

module IssuablesHelper

  def sidebar_gutter_toggle_icon
    sidebar_gutter_collapsed? ? icon('angle-double-left') : icon('angle-double-right')
  end

  def sidebar_gutter_collapsed_class
    "right-sidebar-#{sidebar_gutter_collapsed? ? 'collapsed' : 'expanded'}"
  end

  def issuable_index(issuable)
    base_issuable_scope(issuable).where('id < ?', issuable.id).size + 1
  end

  def issuables_count(issuable)
    base_issuable_scope(issuable).size
  end

  def next_issuable_for(issuable)
    base_issuable_scope(issuable).where('id > ?', issuable.id).last
  end

  def prev_issuable_for(issuable)
    base_issuable_scope(issuable).where('id < ?', issuable.id).first
  end

  private

  def sidebar_gutter_collapsed?
    cookies[:collapsed_gutter] == 'true'
  end

  def base_issuable_scope(issuable)
    issuable.project.send(issuable.to_scope_name).send(issuable_state_scope(issuable))
  end

  def issuable_state_scope(issuable)
    issuable.open? ? :opened : :closed
  end

end