class Middleman::CoreExtensions::Compass

def after_configuration
  ::Compass.configuration do |compass_config|
    compass_config.project_path    = app.source_dir
    compass_config.environment     = :development
    compass_config.cache_path      = app.config[:sass_cache_path]
    compass_config.sass_dir        = app.config[:css_dir]
    compass_config.css_dir         = app.config[:css_dir]
    compass_config.javascripts_dir = app.config[:js_dir]
    compass_config.fonts_dir       = app.config[:fonts_dir]
    compass_config.images_dir      = app.config[:images_dir]
    compass_config.http_path       = app.config[:http_prefix]
    app.config[:sass_assets_paths].each do |path|
      compass_config.add_import_path path
    end
    # Disable this initially, the cache_buster extension will
    # re-enable it if requested.
    compass_config.asset_cache_buster :none
    # Disable this initially, the relative_assets extension will
    compass_config.relative_assets = false
    # Default output style
    compass_config.output_style = :nested
    # No line-comments in test mode (changing paths mess with sha1)
    compass_config.line_comments = false if ENV["TEST"]
  end
  # Call hook
  app.run_hook :compass_config, ::Compass.configuration
  # Tell Tilt to use it as well (for inline sass blocks)
  ::Tilt.register 'sass', CompassSassTemplate
  ::Tilt.prefer(CompassSassTemplate)
  # Tell Tilt to use it as well (for inline scss blocks)
  ::Tilt.register 'scss', CompassScssTemplate
  ::Tilt.prefer(CompassScssTemplate)
end

def initialize(app, options_hash={}, &block)
  super
  # Hooks to manually update the compass config after we're
  # done with it
  app.define_hook :compass_config
  # Location of SASS/SCSS files external to source directory.
  # @return [Array]
  #   config[:sass_assets_paths] = ["#{root}/assets/sass/", "/path/2/external/sass/repository/"]
  app.config.define_setting :sass_assets_paths, [], 'Paths to extra SASS/SCSS files'
end