require File.dirname(__FILE__) + '/../test_helper'

class SlideshowBlockTest < ActiveSupport::TestCase

  def setup
    @profile = fast_create(Profile)
  end
  attr_reader :profile

  should 'refer to a gallery' do
    gallery = fast_create(Folder, :profile_id => profile.id)
    gallery.view_as = 'image_gallery'
    gallery.save!
    slideshow_block = SlideshowBlock.create!(:gallery_id => gallery.id)
    assert_equal gallery, slideshow_block.gallery
  end

  should 'not crash if referencing unexisting folder' do
    assert_nil SlideshowBlock.new(:gallery_id => -999).gallery
  end

  should 'default interval between transitions is 4 seconds' do
    slideshow = SlideshowBlock.new
    assert_equal 4, slideshow.interval
  end

  should 'list in the same order' do
    gallery = mock
    images = []
    images.expects(:shuffle).never
    gallery.stubs(:images).returns(images)

    block = SlideshowBlock.new
    block.stubs(:gallery).returns(gallery)
    block.content
  end

  should 'list in random order' do
    gallery = mock
    images = []
    shuffled = []
    block = SlideshowBlock.new(:shuffle => true)
    block.stubs(:gallery).returns(gallery)
    block.stubs(:block_images).returns(images)
    images.expects(:shuffle).once.returns(shuffled)

    block.content
  end

  should 'not shuffle by default' do
    assert_equal false, SlideshowBlock.new.shuffle
  end

  should 'not display navigation by default' do
    assert_equal false, SlideshowBlock.new.navigation
  end

  should 'not show folders' do
    folder = fast_create(Folder, :profile_id => profile.id)
    gallery = fast_create(Folder, :profile_id => profile.id)
    gallery.children << folder
    block = SlideshowBlock.new
    block.stubs(:gallery).returns(gallery)

    assert_not_includes block.block_images, folder
  end

  should 'display "thumb" size by default' do
    assert_equal 'thumb', SlideshowBlock.new.image_size
  end

  should 'set different image size' do
    block = SlideshowBlock.new(:image_size => 'slideshow')
    assert_equal 'slideshow', block.image_size
  end

  should 'decide correct public filename for image' do
    image = mock
    image.expects(:public_filename).with('slideshow').returns('/bli/slideshow.png')
    File.expects(:exists?).with("#{Rails.root}/public/bli/slideshow.png").returns(true)

    assert_equal '/bli/slideshow.png', SlideshowBlock.new(:image_size => 'slideshow').public_filename_for(image)
  end

  should 'display the default slideshow image if thumbnails were not processed' do
    image = mock
    image.expects(:public_filename).with('slideshow').returns('/images/icons-app/image-loading-slideshow.png')
    File.expects(:exists?).with("#{Rails.root}/public/images/icons-app/image-loading-slideshow.png").returns(true)

    assert_equal '/images/icons-app/image-loading-slideshow.png', SlideshowBlock.new(:image_size => 'slideshow').public_filename_for(image)
  end

  should 'fallback to existing size in case the requested size does not exist' do
    block = SlideshowBlock.new(:image_size => 'slideshow')

    image = mock
    # "slideshow" size does not exist
    image.expects(:public_filename).with('slideshow').returns('/bli/slideshow.png')
    File.expects(:exists?).with("#{Rails.root}/public/bli/slideshow.png").returns(false) # <<<<<

    # thumb size does exist
    image.expects(:public_filename).with('thumb').returns('/bli/thumb.png')
    File.expects(:exists?).with("#{Rails.root}/public/bli/thumb.png").returns(true) # <<<<<

    assert_equal '/bli/thumb.png', block.public_filename_for(image)
  end

  should 'choose between owner image galleries' do
    block = SlideshowBlock.new
    owner = mock
    block.stubs(:owner).returns(owner)

    list = []
    owner.expects(:image_galleries).returns(list)
    assert_same list, block.folder_choices
  end

end