module AtomicCms
  module Generators
    class AssetsGenerator < Rails::Generators::Base
      def install_bourbon
        gem "bourbon", "~> 4.2.6"
      end

      def install_neat
        gem "neat", "~> 1.7.2"
      end

      def install_bitters
        gem "bitters", "~> 1.1.0"
        run "bitters install --path ./app/assets/stylesheets"
      end

      def install_angular
        gem "angularjs-rails", "~> 1.3", "< 1.4"
      end

      def initialize_active_admin_javascript
        javascript_asset = "app/assets/javascripts/active_admin.js.coffee"
        entries = [
          "#= require angular",
          "#= require angular-sanitize",
          "#= require atomic_cms"
        ]
        append_to_file( asset_file: javascript_asset, entries: entries )
      end

      def initialize_active_admin_scss
        scss_asset = "app/assets/stylesheets/active_admin.scss"
        entries = [
          '@import "bourbon";',
          '@import "neat";',
          '@import "base/variables";',
          '@import "base/grid-settings";',
          '@import "atomic_cms";',
          '',
          '#component_preview {',
          '  @import "base/buttons";',
          '  @import "base/forms";',
          '  @import "base/lists";',
          '  @import "base/tables";',
          '  @import "base/typography";',
          '  // When editing a page through Atomic CMS',
          '  // images with broken links should not be displayed.',
          '  img[src="image"] { display:none !important; }',
          '}'
        ]
        append_to_file( asset_file: scss_asset, entries: entries )
      end

      private

      def append_to_file(options)
        open(options[:asset_file], "a") do |asset_file|
          options[:entries].each do |entry|
            asset_file.puts entry
          end
        end
      end
    end
  end
end