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

describe Images::Tags::Image do
  dataset :pages
  dataset :images
  
  before(:all) do
    @images = Image.all
  end
  
  before(:each) do
    stub(AWS::S3::Base).establish_connection!
  end
  
  describe '<r:images>' do
    
    it 'should render without errors' do
      content = '<r:images></r:images>'
      pages(:home).should render(content)
    end
    
    it 'should allow tags in the images namespace to be used without defining their namespace' do
      content = '<r:images><r:each></r:each></r:images>'
      pages(:home).should render(content)
    end
    
    it 'should reference an image given its title' do
      image = @images[2]
      content = '<r:images title="' + image.title + '"><r:images:url /></r:images>'
      pages(:home).should render(content).as(image.asset.url)
    end
    
    it 'should raise an exception if an image title is used that does not exist' do
      content = '<r:images title="doesntreallyexist"><r:images:url /></r:images>'
      lambda { pages(:home).render(content) }.should raise_error
    end
    
  end
  
  describe '<r:images:each>' do
    
    it 'should run through all of our images' do
      content = '<r:images:each>test!</r:images:each>'
      expected = ''
      @images.length.times { expected += 'test!' }
      pages(:home).should render(content).as(expected)
    end
    
    it 'should be running through the image objects' do
      content = '<r:images:each><r:images:url/></r:images:each>'
      expected = ''
      @images.each { |image| expected += image.asset.url }
      pages(:home).should render(content).as(expected)
    end
    
    it 'should only run through however many images we specify with limit' do
      content = '<r:images:each limit="2"><r:images:url/></r:images:each>'
      expected = ''
      @images[0..1].each { |image| expected += image.asset.url }
      pages(:home).should render(content).as(expected)
    end
    
    it 'should start at the image number we give it using offset' do
      content = '<r:images:each limit="2" offset="1"><r:images:url/></r:images:each>'
      expected = ''
      @images[1..2].each { |image| expected += image.asset.url }
      pages(:home).should render(content).as(expected)
    end
    
    it 'should display images in the order we give' do
      # asc
      content = '<r:images:each order="asc" by="position"><r:images:url/></r:images:each>'
      expected = ''
      @images.each { |image| expected += image.asset.url }
      pages(:home).should render(content).as(expected)
      
      #desc
      content = '<r:images:each order="desc" by="position"><r:images:url/></r:images:each>'
      expected = ''
      @images.reverse.each { |image| expected += image.asset.url }
      pages(:home).should render(content).as(expected)
    end
    
    it 'should allow us to order images by title' do
      content = '<r:images:each order="asc" by="title"><r:images:url/></r:images:each>'
      expected = ''
      @images.sort! { |a,b| a.title <=> b.title }
      @images.each { |image| expected += image.asset.url }
      pages(:home).should render(content).as(expected)
    end
        
  end
  
  describe '<r:images:first>' do
    
    it 'should render the first image' do
      content   = '<r:images:first><r:images:url/></r:images:first>'
      expected  = @images.first.asset.url
      pages(:home).should render(content).as(expected)
    end
    
  end
  
  describe '<r:images:if_first>' do
    
    it 'should expand the tag if the image is the first' do
      content   = '<r:images><r:each><r:if_first><r:url /></r:if_first></r:each></r:images>'
      expected  = @images.first.asset.url
      pages(:home).should render(content).as(expected)
    end
    
  end
  
  describe '<r:images:unless_first>' do
    
    it 'should expand the tag if the image is not the first' do
      content   = '<r:images><r:each><r:unless_first><r:url /></r:unless_first></r:each></r:images>'
      expected  = ''
      
      @images.each do |image|
        expected += image.asset.url unless image == @images.first
      end
      
      pages(:home).should render(content).as(expected)
    end
    
  end
  
  describe '<r:if_images>' do
    
    it 'should expand the contents if there are images' do
      content = '<r:images:if_images>test text</r:images:if_images>'
      expected = 'test text'
      pages(:home).should render(content).as(expected)
    end
    
    it 'should not expand the contents if there are no images' do
      Image.delete_all
      content   = '<r:images:if_images>test text</r:images:if_images>'
      expected  = ''
      pages(:home).should render(content).as(expected)    
    end
    
    it 'should expand if the min count is equal to the image count' do
      min_count = Image.count
      content   = '<r:images:if_images min_count="' + min_count.to_s + '">test text</r:images:if_images>'
      expected  = 'test text'
      pages(:home).should render(content).as(expected)      
    end
    
    it 'should not expand if the min count is greater than the image count' do
      min_count = Image.count + 1
      content   = '<r:images:if_images min_count="' + min_count.to_s + '">test text</r:images:if_images>'
      expected  = ''
      pages(:home).should render(content).as(expected)    
    end
    
  end
  
  describe '<r:unless_images>' do
    
    it 'should not the contents if there are images' do
      content = '<r:images:unless_images>test text</r:images:unless_images>'
      expected = ''
      pages(:home).should render(content).as(expected)
    end
    
    it 'should expand the contents if there are no images' do
      Image.delete_all
      content   = '<r:images:unless_images>test text</r:images:unless_images>'
      expected  = 'test text'
      pages(:home).should render(content).as(expected)    
    end
    
    it 'should not expand if the min count is equal to the image count' do
      min_count = Image.count
      content   = '<r:images:unless_images min_count="' + min_count.to_s + '">test text</r:images:unless_images>'
      expected  = ''
      pages(:home).should render(content).as(expected)      
    end
    
    it 'should expand if the min count is greater than the image count' do
      min_count = Image.count + 1
      content   = '<r:images:unless_images min_count="' + min_count.to_s + '">test text</r:images:unless_images>'
      expected  = 'test text'
      pages(:home).should render(content).as(expected)    
    end
    
  end
  
  describe '<r:images:url/>' do
    
    it 'should output the url for a valid image' do
      content   = '<r:images title="' + @images.first.title + '"><r:images:url/></r:images>'
      expected  = @images.first.asset.url 
      pages(:home).should render(content).as(expected)    
    end
    
  end
  
  describe '<r:images:title/>' do
    
    it 'should output the title for a valid image' do
      content   = '<r:images title="' + @images.first.title + '"><r:images:title/></r:images>'
      expected  = @images.first.title 
      pages(:home).should render(content).as(expected)    
    end
    
  end
  
  describe '<r:images:tag/>' do
    
    it 'should output a valid image tag when given a valid image' do
      content   = '<r:images title="' + @images.first.title + '"><r:images:tag /></r:images>'
      expected  = '<img src="' + @images.first.asset.url + '"  alt="' + @images.first.title + '" />' 
      pages(:home).should render(content).as(expected)    
    end
    
    it 'should output a valid image tag when specifying an image by title' do
      content   = '<r:images:tag title="' + @images.first.title + '" />'
      expected  = '<img src="' + @images.first.asset.url + '"  alt="' + @images.first.title + '" />' 
      pages(:home).should render(content).as(expected)
    end
    
    it 'should output an image tag with the specified size' do
      content   = '<r:images:tag title="' + @images.first.title + '" size="icon" />'
      expected  = '<img src="' + @images.first.asset.url(:icon) + '"  alt="' + @images.first.title + '" />' 
      pages(:home).should render(content).as(expected)
    end
    
    it 'should use the given alt text specified' do
      content   = '<r:images:tag title="' + @images.first.title + '" alt="new alt text" />'
      expected  = '<img src="' + @images.first.asset.url + '" alt="new alt text" />' 
      pages(:home).should render(content).as(expected)
    end
    
  end
  
  
end