module RailsAdmin
  module Config
    module Actions
      class State < Base
        RailsAdmin::Config::Actions.register(self)

        # Is the action acting on the root level (Example: /admin/contact)
        register_instance_option :root? do
          false
        end

        register_instance_option :collection? do
          false
        end

        # Is the action on an object scope (Example: /admin/team/1/edit)
        register_instance_option :member? do
          true
        end

        register_instance_option :controller do
          Proc.new do |klass|
            unless @authorization_adapter.nil? || @authorization_adapter.authorized?(:all_events, @abstract_model, @object)
              @authorization_adapter.try(:authorize, params[:event].to_sym, @abstract_model, @object)
            end

            @state_machine_options = ::RailsAdminState::Configuration.new @abstract_model
            if params['id'].present?
              begin
                raise 'event disabled' if @state_machine_options.disabled?(params[:event].to_sym)
                if @object.send("fire_#{params[:attr]}_event".to_sym, params[:event].to_sym)
                  @object.save!
                  if params['ajax'].present?
                    render json: {
                      html: RailsAdmin::Config::Fields::Types::State.pretty_value_from_params(params[:attr], @abstract_model, @object, @authorization_adapter, rails_admin, @state_machine_options)
                    }
                  else
                    flash[:success] = I18n.t('admin.state_machine.event_fired', attr: params[:method], event: params[:event])
                  end
                else
                  if params['ajax'].present?
                    render text: @object.errors.full_messages.join(', ')
                  else
                    flash[:error] = @object.errors.full_messages.join(', ')
                  end
                end
              rescue Exception => e
                Rails.logger.error e
                if params['ajax'].present?
                  render text: I18n.t('admin.state_machine.error', err: e.to_s)
                else
                  flash[:error] = I18n.t('admin.state_machine.error', err: e.to_s)
                end
              end
            else
              if params['ajax'].present?
                render text: I18n.t('admin.state_machine.no_id')
              else
                flash[:error] = I18n.t('admin.state_machine.no_id')
              end
            end
            redirect_back(fallback_location: rails_admin.dashboard_path) unless params['ajax'].present?
          end
        end

        register_instance_option :http_methods do
          [:post]
        end
      end
    end
  end
end