module Api
  module V2
    class JobTemplatesController < ::Api::V2::BaseController
      include ::Api::Version2
      include ::Api::TaxonomyScope
      include ::Foreman::Renderer
      include ::Foreman::Controller::ProvisioningTemplates
      include ::Foreman::Controller::Parameters::JobTemplate

      before_filter :find_optional_nested_object
      before_filter :find_resource, :only => %w{show update destroy clone export}

      before_filter :handle_template_upload, :only => [:create, :update]

      wrap_parameters JobTemplate, :include => (JobTemplate.attribute_names + [:ssh])

      api :GET, '/job_templates/', N_('List job templates')
      api :GET, '/locations/:location_id/job_templates/', N_('List job templates per location')
      api :GET, '/organizations/:organization_id/job_templates/', N_('List job templates per organization')
      param_group :taxonomy_scope, ::Api::V2::BaseController
      param_group :search_and_pagination, ::Api::V2::BaseController
      def index
        @job_templates = resource_scope_for_index
      end

      api :POST, '/job_templates/import', N_('Import a job template from ERB')
      param :template, String, :required => true, :desc => N_('Template ERB')
      param :overwrite, :bool, :required => false, :desc => N_('Overwrite template if it already exists')
      def import
        options = params[:overwrite] ? { :update => true } : { :build_new => true }

        @job_template = JobTemplate.import(params[:template], options)
        @job_template ||= JobTemplate.new
        process_response @job_template.save
      end

      api :GET, '/job_templates/:id/export', N_('Export a job template to ERB')
      param :id, :identifier, :required => true
      def export
        send_data @job_template.to_erb, :type => 'text/plain', :disposition => 'attachment', :filename => @job_template.filename
      end

      api :GET, '/job_templates/:id', N_('Show job template details')
      param :id, :identifier, :required => true
      def show
      end

      def_param_group :job_template do
        param :job_template, Hash, :required => true, :action_aware => true do
          param :name, String, :required => true, :desc => N_('Template name')
          param :job_category, String, :required => true, :desc => N_('Job category')
          param :description_format, String, :required => false, :desc => N_('This template is used to generate the description. ' +
                                                                             'Input values can be used using the syntax %{package}. ' +
                                                                             'You may also include the job category and template ' +
                                                                             'name using %{job_category} and %{template_name}.')
          param :template, String, :required => true
          param :provider_type, RemoteExecutionProvider.provider_names, :required => true, :desc => N_('Provider type')
          param :snippet, :bool, :allow_nil => true
          param :audit_comment, String, :allow_nil => true
          param :locked, :bool, :desc => N_('Whether or not the template is locked for editing')
          param :ssh, Hash, :desc => N_('SSH provider specific options') do
            param :effective_user, Hash, :desc => N_('Effective user options') do
              param :value, String, :desc => N_('What user should be used to run the script (using sudo-like mechanisms)'), :allowed_nil => true
              param :overridable, :bool, :desc => N_('Whether it should be allowed to override the effective user from the invocation form.')
              param :current_user, :bool, :desc => N_('Whether the current user login should be used as the effective user')
            end
          end
          param_group :taxonomies, ::Api::V2::BaseController
        end
      end

      api :POST, '/job_templates/', N_('Create a job template')
      param_group :job_template, :as => :create
      def create
        @job_template = JobTemplate.new(job_template_params)
        process_response @job_template.save
      end

      api :PUT, '/job_templates/:id', N_('Update a job template')
      param :id, :identifier, :required => true
      param_group :job_template
      def update
        process_response @job_template.update_attributes(job_template_params)
      end

      api :GET, '/job_templates/revision'
      param :version, String, :desc => N_('Template version')
      def revision
        audit = Audit.authorized(:view_audit_logs).find(params[:version])
        render :json => audit.revision.template
      end

      api :DELETE, '/job_templates/:id', N_('Delete a job template')
      param :id, :identifier, :required => true
      def destroy
        process_response @job_template.destroy
      end

      def_param_group :job_template_clone do
        param :job_template, Hash, :required => true, :action_aware => true do
          param :name, String, :required => true, :desc => N_('Template name')
        end
      end

      api :POST, '/job_templates/:id/clone', N_('Clone a provision template')
      param :id, :identifier, :required => true
      param_group :job_template_clone, :as => :create
      def clone
        @job_template = @job_template.clone
        load_vars_from_template
        @job_template.name = job_template_params[:name]
        process_response @job_template.save
      end

      def resource_name
        'job_template'
      end

      private

      def job_template_params
        job_template_params = params[:job_template]
        effective_user_attributes = (job_template_params.delete(:ssh) || {}).fetch(:effective_user, {})
        job_template_params.merge(:effective_user_attributes => effective_user_attributes)
        super
      end

      def action_permission
        case params[:action]
        when 'clone'
          :create
        when 'import'
          :create
        when 'export'
          :view
        else
          super
        end
      end

      def resource_class
        JobTemplate
      end

      def allowed_nested_id
        %w(location_id organization_id)
      end
    end
  end
end