rharriso/bower-rails

module BowerRails
  require 'bower-rails/railtie' if defined?(Rails)
  require 'bower-rails/dsl'

  extend self

  class << self
    # The root path of the project
    attr_accessor :root_path

    # An array of tasks to enhance `rake assets:precompile`
    attr_reader :tasks

    # If set to true then rake bower:install task is invoked before assets precompilation
    attr_accessor :install_before_precompile

    # If set to true then rake bower:install && rake bower:resolve tasks
    # are invoked before assets precompilation
    attr_accessor :resolve_before_precompile

    # If set to true then rake bower:install && rake bower:clean tasks
    # are invoked before assets precompilation
    attr_accessor :clean_before_precompile

    # If containing a list of bower component names, those components
    # will be excluded from the bower:clean
    attr_accessor :exclude_from_clean

    # If set to true then rake bower:install:deployment will be invoked
    # instead of rake bower:install before assets precompilation
    attr_accessor :use_bower_install_deployment

    # If set to true then rake bower:install will search for gem dependencies
    # and in each gem it will search for Bowerfile and then concatenate all Bowerfile
    # for evaluation
    attr_accessor :use_gem_deps_for_bowerfile

    # If set to true then rake bower:install[-f] will be invoked
    # instead of rake bower:install before assets precompilation
    attr_accessor :force_install

    # Where to store the bower components
    attr_accessor :bower_components_directory

    def configure &block
      yield self if block_given?
      collect_tasks
    end

    private

      def collect_tasks
        install_cmd = 'bower:install'
        install_cmd = 'bower:install:deployment' if @use_bower_install_deployment
        install_cmd += '[-F]' if @force_install

        @tasks << [install_cmd] if @install_before_precompile
        @tasks << [install_cmd, 'bower:clean']   if @clean_before_precompile
        @tasks << [install_cmd, 'bower:resolve'] if @resolve_before_precompile
        @tasks.flatten!
        @tasks.uniq!
      end
  end


  # Set default values for options
  @root_path = Dir.pwd
  @tasks = []
  @install_before_precompile    = false
  @resolve_before_precompile    = false
  @clean_before_precompile      = false
  @use_bower_install_deployment = false
  @use_gem_deps_for_bowerfile   = false
  @force_install = false
  @bower_components_directory = "bower_components"
end