require 'spec_helper'

describe SiteCustomization do

  let :user do
    Fabricate(:user)
  end

  let :customization_params do
    {name: 'my name', user_id: user.id, header: "my awesome header", stylesheet: "my awesome css", mobile_stylesheet: nil, mobile_header: nil}
  end

  let :customization do
    SiteCustomization.create!(customization_params)
  end

  let :customization_with_mobile do
    SiteCustomization.create!(customization_params.merge(mobile_stylesheet: ".mobile {better: true;}", mobile_header: "fancy mobile stuff"))
  end

  it 'should set default key when creating a new customization' do
    s = SiteCustomization.create!(name: 'my name', user_id: user.id)
    s.key.should_not == nil
  end

  context 'caching' do

    context 'enabled style' do
      before do
        @customization = customization
      end

      it 'finds no style when none enabled' do
        SiteCustomization.enabled_style_key.should be_nil
      end


      it 'finds the enabled style' do
        @customization.enabled = true
        @customization.save
        SiteCustomization.enabled_style_key.should == @customization.key
      end

      it 'finds no enabled style on other sites' do
        @customization.enabled = true
        @customization.save

        RailsMultisite::ConnectionManagement.expects(:current_db).returns("foo").twice
        # the mocking is tricky, lets remove the record so we can properly pretend we are on another db
        #  this bypasses the before / after stuff
        SiteCustomization.exec_sql('delete from site_customizations')

        SiteCustomization.enabled_style_key.should be_nil
      end
    end

    it 'ensure stylesheet is on disk on first fetch' do
      c = customization
      c.remove_from_cache!
      File.delete(c.stylesheet_fullpath)
      File.delete(c.stylesheet_fullpath(:mobile))

      SiteCustomization.custom_stylesheet(c.key)
      File.exists?(c.stylesheet_fullpath).should == true
      File.exists?(c.stylesheet_fullpath(:mobile)).should == true
    end

    context '#custom_stylesheet' do
      it 'should allow me to lookup a filename containing my preview stylesheet' do
        SiteCustomization.custom_stylesheet(customization.key).should ==
          "<link class=\"custom-css\" rel=\"stylesheet\" href=\"/uploads/stylesheet-cache/#{customization.key}.css?#{customization.stylesheet_hash}\" type=\"text/css\" media=\"screen\">"
      end

      it "should return blank link tag for mobile if mobile_stylesheet is blank" do
        SiteCustomization.custom_stylesheet(customization.key, :mobile).should == ""
      end

      it "should return link tag for mobile custom stylesheet" do
        SiteCustomization.custom_stylesheet(customization_with_mobile.key, :mobile).should ==
          "<link class=\"custom-css\" rel=\"stylesheet\" href=\"/uploads/stylesheet-cache/mobile_#{customization_with_mobile.key}.css?#{customization_with_mobile.stylesheet_hash(:mobile)}\" type=\"text/css\" media=\"screen\">"
      end
    end

    context '#custom_header' do
      it "returns empty string when there is no custom header" do
        c = SiteCustomization.create!(customization_params.merge(header: ''))
        SiteCustomization.custom_header(c.key).should == ''
      end

      it "can return the custom header html" do
        SiteCustomization.custom_header(customization.key).should == customization_params[:header]
      end

      it "returns empty string for mobile header when there's no custom mobile header" do
        SiteCustomization.custom_header(customization.key, :mobile).should == ''
      end

      it "can return the custom mobile header html" do
        SiteCustomization.custom_header(customization_with_mobile.key, :mobile).should == customization_with_mobile.mobile_header
      end
    end

    it 'should fix stylesheet files after changing the stylesheet' do
      old_file = customization.stylesheet_fullpath
      original = SiteCustomization.custom_stylesheet(customization.key)

      File.exists?(old_file).should == true
      customization.stylesheet = "div { clear:both; }"
      customization.save

      SiteCustomization.custom_stylesheet(customization.key).should_not == original
    end

    it 'should fix mobile stylesheet files after changing the mobile_stylesheet' do
      old_file = customization_with_mobile.stylesheet_fullpath(:mobile)
      original = SiteCustomization.custom_stylesheet(customization_with_mobile.key, :mobile)

      File.exists?(old_file).should == true
      customization_with_mobile.mobile_stylesheet = "div { clear:both; }"
      customization_with_mobile.save

      SiteCustomization.custom_stylesheet(customization_with_mobile.key).should_not == original
    end

    it 'should delete old stylesheet files after deleting' do
      old_file = customization.stylesheet_fullpath
      customization.ensure_stylesheets_on_disk!
      customization.destroy
      File.exists?(old_file).should == false
    end

    it 'should delete old mobile stylesheet files after deleting' do
      old_file = customization_with_mobile.stylesheet_fullpath(:mobile)
      customization_with_mobile.ensure_stylesheets_on_disk!
      customization_with_mobile.destroy
      File.exists?(old_file).should == false
    end

    it 'should nuke old revs out of the cache' do
      old_style = SiteCustomization.custom_stylesheet(customization.key)

      customization.stylesheet = "hello worldz"
      customization.save
      SiteCustomization.custom_stylesheet(customization.key).should_not == old_style
    end

    it 'should nuke old revs out of the cache for mobile too' do
      old_style = SiteCustomization.custom_stylesheet(customization_with_mobile.key)

      customization_with_mobile.mobile_stylesheet = "hello worldz"
      customization_with_mobile.save
      SiteCustomization.custom_stylesheet(customization.key, :mobile).should_not == old_style
    end


    it 'should compile scss' do
      c = SiteCustomization.create!(user_id: user.id, name: "test", stylesheet: '$black: #000; #a { color: $black; }', header: '')
      c.stylesheet_baked.should == "#a{color:#000}\n"
    end

    it 'should compile mobile scss' do
      c = SiteCustomization.create!(user_id: user.id, name: "test", stylesheet: '', header: '', mobile_stylesheet: '$black: #000; #a { color: $black; }', mobile_header: '')
      c.mobile_stylesheet_baked.should == "#a{color:#000}\n"
    end

    pending 'should allow including discourse styles' do
      c = SiteCustomization.create!(user_id: user.id, name: "test", stylesheet: '@import "desktop";', mobile_stylesheet: '@import "mobile";')
      c.stylesheet_baked.should_not =~ /Syntax error/
      c.stylesheet_baked.length.should > 1000
      c.mobile_stylesheet_baked.should_not =~ /Syntax error/
      c.mobile_stylesheet_baked.length.should > 1000

      # Vikhyat, this is giving me an anurism
      #
      # SiteCustomisation is not initializing sprockets and sprockets enviroment, they are required for asset helpers to function properly
      # in travis we see this failure quite often:
      #
      # /home/travis/.rvm/gems/ruby-2.1.1/gems/sprockets-2.11.0/lib/sprockets/sass_functions.rb:63:in `sprockets_context'
      # /home/travis/.rvm/gems/ruby-2.1.1/gems/sass-rails-4.0.2/lib/sass/rails/helpers.rb:23:in `asset_url'
      # /home/travis/.rvm/gems/ruby-2.1.1/gems/sass-3.2.16/lib/sass/script/funcall.rb:113:in `_perform'
      # /home/travis/.rvm/gems/ruby-2.1.1/gems/sass-3.2.16/lib/sass/script/node.rb:40:in `perform'
      # eg: https://travis-ci.org/discourse/discourse/jobs/22413830
      #
      # This makes sense cause our compile_stylesheet method does not specify sprockets: { context: ctx, environment: ctx.environment }
      # Thing is, where do you even get this magic context object from and how do you generate it, perhaps Rails.application.assets.context_class.new ...
      # I dunno, its all voodoo to me
      #
      # The "sometimes" failing thing also needs to be determined, this should either always fail or never fail, its a strong indicator that a bunch
      # of caching is happening, please resolve and re-enable the test
    end

    it 'should provide an awesome error on failure' do
      c = SiteCustomization.create!(user_id: user.id, name: "test", stylesheet: "$black: #000; #a { color: $black; }\n\n\nboom", header: '')
      c.stylesheet_baked.should =~ /Syntax error/
      c.mobile_stylesheet_baked.should_not be_present
    end

    it 'should provide an awesome error on failure for mobile too' do
      c = SiteCustomization.create!(user_id: user.id, name: "test", stylesheet: '', header: '', mobile_stylesheet: "$black: #000; #a { color: $black; }\n\n\nboom", mobile_header: '')
      c.mobile_stylesheet_baked.should =~ /Syntax error/
      c.stylesheet_baked.should_not be_present
    end

  end

end