module Redcar
  module Scm
    class ScmChangesMirror
      include Redcar::Tree::Mirror
      
      def initialize(repo)
        @repo = repo
      end
      
      def title
        @repo.translations[:uncommited_changes]
      end
      
      def data_type
        :text
      end
      
      # Root items will never change
      def changed?
        false
      end
      
      def drag_and_drop?
        #@repo.supported_commands.include? :index
        false
      end
      
      def from_data(data)
        data.split('::::').map {|n| @repo.from_data(n)}.find_all {|n| not n.nil?}
      end
      
      def to_data(nodes)
        nodes.find_all {|n| n.respond_to?(:to_data)}.map {|n| n.to_data}.join('::::')
      end
      
      def top
        @top ||= begin
          if @repo.supported_commands.include? :index
            [
              ScmChangesMirror::ChangesNode.new(@repo, :indexed),
              ScmChangesMirror::ChangesNode.new(@repo, :unindexed)
            ]
          else
            [ScmChangesMirror::ChangesNode.new(@repo, :all)]
          end
        end
      end
    end
  end
end