require File.join(File.dirname(__FILE__), '..', 'og', 'CONFIG.rb')

require 'rubygems'
require 'facets'
require 'test/unit'
require 'ostruct'

require 'og'
require 'glue/orderable'

class TestCaseOgOrderable < Test::Unit::TestCase # :nodoc: all
  include Glue
  
  class Article
    attr_accessor :title, :body, String
    has_many :comments, Comment, :list => true, :order => 'position DESC'

    def initialize(title = nil)
      @title = title
    end
  end

  class Comment 
    attr_accessor :body, String
    belongs_to :article
    
    # We have to set the parent before inserting the comment
    # for the scope to work!
    is Orderable #, :scope => :article

    def initialize(body = nil)
      @body = body
    end
  end

  class Playlist
    attr_accessor :name, String
    has_many :tracks
  end

  class Track
    attr_accessor :name, String
    is Orderable, :scope => :playlist

    belongs_to :playlist

    def initialize(name, playlist)
      @name = name
      self.playlist = playlist
    end
  end

  $og1.manage_classes(Article, Comment, Playlist, Track)

  def test_all
    a = Article.create('article')

    c1 = Comment.create('1')
    a.comments << c1
    c2 = Comment.create('2')
    a.comments << c2
    c3 = Comment.create('3')
    a.comments << c3

    assert_equal 1, c1.position
    assert_equal 2, c2.position
    assert_equal 3, c3.position

    c3.move_higher

    c1.reload
    c2.reload
    c3.reload

    assert_equal 1, c1.position

    assert_equal 2, c3.position
    assert_equal 3, c2.position

    c2.move_to_top

    c1.reload
    c2.reload
    c3.reload

    assert_equal 1, c2.position
    assert_equal 2, c1.position
    assert_equal 3, c3.position

    c2.move_to_bottom

    c1.reload
    c2.reload
    c3.reload

    assert_equal 1, c1.position
    assert_equal 2, c3.position
    assert_equal 3, c2.position

    c3.delete!

    c1.reload
    c2.reload

    assert_equal 1, c1.position
    assert_equal 2, c2.position

    c2.delete!

    c1.reload

    assert_equal 1, c1.position

    c1.delete!
  end
  
  def track_list
    Track.find(:order => "position").collect { |t| t.name }
  end

  def test_orderable
    pl = Playlist.create

    %w{one two three four five six}.each do |n|
      Track.create(n, pl)
    end

    tr = Track.one(:condition => 'position = 1')
    tr.move_to(4)
    assert_equal(4, tr.position)

    assert_equal(%w{two three four one five six}, track_list() )

    tr = Track.one(:condition => 'position = 5')
    tr.move_to(3)
    assert_equal(3, tr.position)

    assert_equal( %w{two three five four one six}, track_list() )
  end

end