module AssetBox

# File lib/asset_box.rb, line 50
def assets_path
  @assets_path ||= File.join(gem_path, 'assets')
end

# File lib/asset_box.rb, line 30
def compass?
  defined?(::Compass::Frameworks)
end

# File lib/asset_box.rb, line 42
def fonts_path
  File.join(assets_path, 'fonts')
end

# File lib/asset_box.rb, line 54
def gem_path
  @gem_path ||= File.expand_path('..', File.dirname(__FILE__))
end

# File lib/asset_box.rb, line 58
def hanami?
  defined?(::Hanami)
end

# File lib/asset_box.rb, line 46
def images_path
  File.join(assets_path, 'images')
end

# File lib/asset_box.rb, line 7
def load!
  register_compass_extension if compass?

  if rails?
    register_rails_engine
  elsif hanami?
    register_hanami
  elsif sprockets?
    register_sprockets
  elsif defined?(::Sass) && ::Sass.respond_to?(:load_paths)
    ::Sass.load_paths << stylesheets_path
  end

  if defined?(::Sass::Script::Value::Number)
    # bootstrap requires minimum precision of 8, see https://github.com/twbs/bootstrap-sass/issues/409
    ::Sass::Script::Value::Number.precision = [8, ::Sass::Script::Value::Number.precision].max
  end
end

# File lib/asset_box.rb, line 34
def rails?
  defined?(::Rails)
end

# File lib/asset_box.rb, line 26
def sprockets?
  defined?(::Sprockets)
end

# File lib/asset_box.rb, line 38
def stylesheets_path
  File.join(assets_path, 'stylesheets')
end

# File lib/asset_box.rb, line 62
def register_compass_extension
  ::Compass::Frameworks.register(
    'asset_box',
    :version               => AssetBox::VERSION,
    :path                  => gem_path,
    :stylesheets_directory => stylesheets_path,
    :templates_directory   => File.join(gem_path, 'templates')
  )
end

# File lib/asset_box.rb, line 84
def register_hanami
  Hanami::Assets.sources << assets_path
end

# File lib/asset_box.rb, line 72
def register_rails_engine
  require 'asset_box/rails/engine'
  require 'asset_box/rails/railtie'
end

# File lib/asset_box.rb, line 77
def register_sprockets
  Sprockets.append_path(fonts_path)
  Sprockets.append_path(images_path)
  Sprockets.append_path(stylesheets_path)
  Sprockets.append_path(javascripts_path)
end