module RateUsersHelperPatch
  def self.included(base) # :nodoc:
    base.send(:include, InstanceMethods)
    base.class_eval do
      alias_method_chain :user_settings_tabs, :rate_tab
    end
  end
  
  module InstanceMethods
    # Adds a rates tab to the user administration page
    def user_settings_tabs_with_rate_tab
      tabs = user_settings_tabs_without_rate_tab
      tabs << { :name => 'rates', :partial => 'users/rates', :label => :rate_label_rate_history}
      return tabs
    end
    
    # Similar to +project_options_for_select+ but allows selecting the active value
    def project_options_for_select_with_selected(projects, selected = nil)
      options = content_tag('option', "--- #{l(:rate_label_default)} ---", :value => '')
      projects_by_root = projects.group_by(&:root)
      projects_by_root.keys.sort.each do |root|
        root_selected = (root == selected) ? 'selected' : nil

        options << content_tag('option', h(root.name), :value => root.id, :disabled => (!projects.include?(root)), :selected => root_selected)
        projects_by_root[root].sort.each do |project|
          next if project == root
          child_selected = (project == selected) ? 'selected' : nil

          options << content_tag('option', '&#187; ' + h(project.name), :value => project.id, :selected => child_selected)
        end
      end
      options
    end
    
  end
end