require 'padrino-core/application' unless defined?(Padrino::Application)

module Padrino
  module Generators
    ##
    # Responsible for generating route controllers and associated tests within a Padrino application.
    #
    class Controller < Thor::Group
      Padrino::Generators.add_generator(:controller, self)

      def self.source_root; __dir__; end
      def self.banner; 'padrino-gen controller [name]'; end

      include Thor::Actions
      include Padrino::Generators::Actions
      include Padrino::Generators::Components::Actions

      desc "Description:\n\n\tpadrino-gen controller generates a new Padrino controller"

      argument     :name,        desc: 'The name of your padrino controller'
      argument     :fields,      desc: 'The fields for the controller',                         default: [],     type: :array
      class_option :root,        desc: 'The root destination',                   aliases: '-r', default: '.',    type: :string
      class_option :app,         desc: 'The application destination path',       aliases: '-a', default: '/app', type: :string
      class_option :destroy,                                                     aliases: '-d', default: false,  type: :boolean
      class_option :namespace,   desc: 'The name space of your padrino project', aliases: '-n', default: '',     type: :string
      class_option :layout,      desc: 'The layout for the controller',          aliases: '-l', default: '',     type: :string
      class_option :parent,      desc: 'The parent of the controller',           aliases: '-p', default: '',     type: :string
      class_option :provides,    desc: 'The formats provided by the controller', aliases: '-f', default: '',     type: :string
      class_option :'no-helper', desc: 'Not generate helper',                                   default: false,  type: :boolean

      # Show help if no ARGV given
      require_arguments!

      ##
      # Execute controller generation
      #
      def create_controller
        validate_namespace name
        self.destination_root = options[:root]
        if in_app_root?
          app = options[:app]
          check_app_existence(app)
          @project_name = options[:namespace].underscore.camelize
          @project_name = fetch_project_name(app) if @project_name.empty?
          @app_name     = fetch_app_name(app)
          @actions      = controller_actions(fields)
          @controller   = name.to_s.underscore
          @layout       = options[:layout] if options[:layout] && !options[:layout].empty?

          block_opts = []
          block_opts << "parent: :#{options[:parent]}" if options[:parent] && !options[:parent].empty?
          block_opts << "provides: [#{options[:provides]}]" if options[:provides] && !options[:provides].empty?
          @block_opts_string = block_opts.join(', ') unless block_opts.empty?

          self.behavior = :revoke if options[:destroy]
          template 'templates/controller.rb.tt', destination_root(app, 'controllers', "#{name.to_s.underscore}.rb")
          empty_directory destination_root(app, "/views/#{name.to_s.underscore}")

          if test?
            include_component_module_for(:test)
            path = @controller.dup

            if options[:parent] && !options[:parent].empty?
              path = Application.process_path_for_parent_params(path, [options[:parent]]).prepend('/')
            end
            path.prepend('/') unless path.start_with?('/')
            generate_controller_test(name, path)
          end

          create_helper_files(app, name) unless options[:'no-helper']
        else
          say 'You are not at the root of a Padrino application! (config/boot.rb not found)'
        end
      end
    end
  end
end
