class Bootstrap::Generators::InstallGenerator

def add_assets
  if File.exist?('app/assets/javascripts/application.js')
    insert_into_file "app/assets/javascripts/application.js", "//= require twitter/bootstrap\n", :after => "jquery_ujs\n"
  else
    copy_file "application.js", "app/assets/javascripts/application.js"
  end
  if File.exist?('app/assets/stylesheets/application.css')
    # Add our own require:
    content = File.read("app/assets/stylesheets/application.css")
    if content.match(/require_tree\s+\.\s*$/)
      # Good enough - that'll include our bootstrap_and_overrides.css.less
    else
      style_require_block = " *= require bootstrap_and_overrides\n"
      insert_into_file "app/assets/stylesheets/application.css", style_require_block, :after => "require_self\n"
    end
  else
    copy_file "application.css", "app/assets/stylesheets/application.css"
  end
end

def add_bootstrap
  if use_coffeescript?
    copy_file "bootstrap.coffee", "app/assets/javascripts/bootstrap.js.coffee"
  else
    copy_file "bootstrap.js", "app/assets/javascripts/bootstrap.js"
  end
  if use_less?
    copy_file "bootstrap_and_overrides.less", "app/assets/stylesheets/bootstrap_and_overrides.css.less"
  else
    copy_file "bootstrap_and_overrides.css", "app/assets/stylesheets/bootstrap_and_overrides.css"
  end
end

def cleanup_legacy
  # Remove old requires (if any) that included twitter/bootstrap directly:
  gsub_file("app/assets/stylesheets/application.css", %r|\s*\*=\s*twitter/bootstrap\s*\n|, "")
  gsub_file("app/assets/stylesheets/application.css", %r|\s*\*=\s*twitter/bootstrap_responsive\s*\n|, "")
  if File.exist?('app/assets/stylesheets/bootstrap_override.css.less')
    puts <<-EOM
    Warning:
      app/assets/stylesheets/bootstrap_override.css.less exists
      It should be removed, as it has been superceded by app/assets/stylesheets/bootstrap_and_overrides.css.less
    EOM
  end
end

def use_coffeescript?
  ::Rails.configuration.app_generators.rails[:javascript_engine] == :coffee
end

def use_less?
  (defined?(Less) && (stylesheets_type!='static') ) || (stylesheets_type=='less')
end