module NamespacesHelper
  def namespaces_options(selected = :current_user, scope = :default)
    if current_user.admin
      groups = Group.all
      users = Namespace.root
    else
      groups = current_user.owned_groups.select {|n| n.type == 'Group'}
      users = current_user.namespaces.reject {|n| n.type == 'Group'}
    end


    global_opts = ["Global", [['/', Namespace.global_id]] ]
    group_opts = ["Groups", groups.sort_by(&:human_name).map {|g| [g.human_name, g.id]} ]
    users_opts = [ "Users", users.sort_by(&:human_name).map {|u| [u.human_name, u.id]} ]

    options = []
    options << global_opts if current_user.admin
    options << group_opts
    options << users_opts

    if selected == :current_user && current_user.namespace
      selected = current_user.namespace.id
    end

    grouped_options_for_select(options, selected)
  end
end