require "rails/generators"

module Edge
  module Generators
    class InstallGenerator < Rails::Generators::Base
      source_root File.join(File.dirname(__FILE__), "../../template/rails")
      argument :layout_name, type: :string, default: "application", banner: "layout_name"

      def add_assets
        # rails_ujs breaks, need to incorporate rails-behavior plugin for this to work seamlessly
        # gsub_file "app/assets/javascripts/application#{detect_js_format[0]}", /\/\/= require jquery\n/, ""

        settings_file = File.join(File.dirname(__FILE__), "..", "..", "template", "base", "assets", "sass", "_setting.scss")
        create_file "app/assets/stylesheets/_setting.scss", File.read(settings_file)

        framework_file = File.join(File.dirname(__FILE__), "..", "..", "template", "base", "assets", "sass", "framework.scss")
        create_file "app/assets/stylesheets/framework.scss", File.read(framework_file)

        style_file = File.join(File.dirname(__FILE__), "..", "..", "template", "base", "assets", "sass", "app.scss")
        create_file "app/assets/stylesheets/app.scss", File.read(style_file)

        script_file = File.join(File.dirname(__FILE__), "..", "..", "template", "rails", "app.js")
        create_file "app/assets/javascripts/app.js", File.read(script_file)

        insert_into_file "app/assets/stylesheets/application#{detect_css_format[0]}", "#{detect_css_format[1]} require framework\n", after: "require_self\n"
      end

      def detect_js_format
        return [".coffee", "#="] if File.exist?("app/assets/javascripts/application.coffee")
        return [".js.coffee", "#="] if File.exist?("app/assets/javascripts/application.js.coffee")
        return [".js", "//="] if File.exist?("app/assets/javascripts/application.js")
      end

      def detect_css_format
        return [".css", " *="] if File.exist?("app/assets/stylesheets/application.css")
        return [".css.sass", " //="] if File.exist?("app/assets/stylesheets/application.css.sass")
        return [".sass", " //="] if File.exist?("app/assets/stylesheets/application.sass")
        return [".css.scss", " //="] if File.exist?("app/assets/stylesheets/application.css.scss")
        return [".scss", " //="] if File.exist?("app/assets/stylesheets/application.scss")
      end

      def create_layout
        if options.haml?||(defined?(Haml) && options.haml?)
          template "application.html.haml", "app/views/layouts/#{file_name}.html.haml"
        elsif options.slim?||(defined?(Slim) && options.slim?)
          template "application.html.slim", "app/views/layouts/#{file_name}.html.slim"
        else
          template "application.html.erb", "app/views/layouts/#{file_name}.html.erb"
        end
      end

      private

      def file_name
        layout_name.underscore.downcase
      end
    end
  end
end