require 'helper'
require 'css_parser'

class SpritePiecetest < Test::Unit::TestCase
  def setup
    initialize_application_or_load_sprites!
  end

  def teardown
    FileUtils.rm_rf(Rails.root.join('public/images/sprites'))
    FileUtils.rm_rf(Rails.root.join('public/stylesheets/sprites'))

    tear_down_assets
  end

  def important_rendered(important = false)
    sp_options = {"sprite_images/sprite3/1.png" => ".klass_1"}
    sp_options.update(:important => important) if important

    Rails.application.sprites do
      sprite :sprite2 do
        sp sp_options
      end
    end
  
    ENV['SPRITE'] = 'sprite2'
  
    Rails.application.sprites.generate!
  
    parser = CssParser::Parser.new
    stylesheet_path = Rails.root.join('public/stylesheets/sprites/sprite2.css')
    parser.load_file!(File.basename(stylesheet_path), File.dirname(stylesheet_path), :screen)

    important = ''
    parser.each_rule_set do |rs|
      next unless rs.selectors.include?('.klass_1')
      background = rs['background'][%r{\s*([^;]+)}, 1]
      important = background[%r{\s+(!important)$}, 1]
    end
    important
  end

  def repeat_rendered(repeat = nil)
    sp_options = {"sprite_images/sprite3/1.png" => ".klass_1"}
    sp_options.update(:repeat => repeat) unless repeat.nil?

    Rails.application.sprites do
      sprite :sprite2 do
        sp sp_options
      end
    end
  
    ENV['SPRITE'] = 'sprite2'
  
    Rails.application.sprites.generate!
  
    parser = CssParser::Parser.new
    stylesheet_path = Rails.root.join('public/stylesheets/sprites/sprite2.css')
    parser.load_file!(File.basename(stylesheet_path), File.dirname(stylesheet_path), :screen)

    repeat = ''
    parser.each_rule_set do |rs|
      next unless rs.selectors.include?('.klass_1')
      background = rs['background'][%r{\s*([^;]+)}, 1]
      repeat = background[%r{\)\s*([^\s]+)}, 1]
    end
    repeat
  end

  def test_configure_with_block
    Rails.application.sprites do
      sprite :sprite1 do
        _"sprite_images/sprite1/1.png" => ".klass_1" do
          x 'right'
          y 'top'
          width '320px'
          height '240px'
        end
      end
    end

    assert_equal "240px", sprites[:sprite1]["sprite_images/sprite1/1.png"].height
    assert_equal "320px", sprites[:sprite1]["sprite_images/sprite1/1.png"].width
    assert_equal "top", sprites[:sprite1]["sprite_images/sprite1/1.png"].y
    assert_equal 'right', sprites[:sprite1]["sprite_images/sprite1/1.png"].x
  end

  def test_configure_with_options
    Rails.application.sprites do
      sprite :sprite2 do
        _"sprite_images/sprite1/1.png" => ".klass_1", :x => 'right', :y => 'top', :width => '320px', :height => '240px'
        _"sprite_images/sprite1/2.png" => ".klass_2"
      end
    end

    assert_equal '.klass_2', sprites[:sprite2]["sprite_images/sprite1/2.png"].css_selector
    assert_equal '.klass_1', sprites[:sprite2]["sprite_images/sprite1/1.png"].css_selector
    assert_equal "240px", sprites[:sprite2]["sprite_images/sprite1/1.png"].height
    assert_equal "320px", sprites[:sprite2]["sprite_images/sprite1/1.png"].width
    assert_equal "top", sprites[:sprite2]["sprite_images/sprite1/1.png"].y
    assert_equal 'right', sprites[:sprite2]["sprite_images/sprite1/1.png"].x
  end

  def test_raises_validation_error_when_path_is_blank
    assert_raises ActiveAssets::ActiveSprites::SpritePiece::ValidationError do
      Rails.application.sprites do
        sprite :sprite2 do
          _"" => ".klass_1"
        end
      end
    end
  end

  def test_ordered
    paths = []
    Dir[Rails.root.join('public/images/sprite_images/sprite4/*.{png,gif,jpg}')].each do |path|
      image_path = path.match(%r{^.*/public/images/(.*)$})[1]
      paths << image_path
    end

    assert_equal paths, Rails.application.sprites['sprites/4.png'].sprite_pieces.map(&:path)
  end

  def test_set_repeat
    assert_equal 'repeat-y', repeat_rendered('repeat-y')
  end

  def test_do_not_set_repeat
    assert_equal 'no-repeat', repeat_rendered
  end

  def test_set_important
    assert_equal '!important', important_rendered(true)
  end

  def test_do_not_set_important
    assert_equal nil, important_rendered
  end
end