Add helper method plguins_json

Signed-off-by: Kenji Okimoto <okimoto@clear-code.com>

app/controllers/plugins_controller.rb

@@ -1,4 +1,6 @@
 class PluginsController < ApplicationController
+  helper_method :plugins_json
+
   def index
     redirect_to installed_plugins_path
   end
@@ -19,7 +21,16 @@ class PluginsController < ApplicationController
     params[:plugins].each do |gem_name|
       GemInstallerJob.perform_later(gem_name)
     end
-    redirect_to plugins_path
+    respond_to do |format|
+      format.html do
+        redirect_to plugins_path
+      end
+      format.json do
+        plugins = PluginDecorator.decorate_collection(Plugin.recommended.select {|item| params[:plugins].include?(item.gem_name)})
+        render json: plugins.map(&:to_hash).to_json
+      end
+    end
+
   end
 
   def uninstall
@@ -41,4 +52,10 @@ class PluginsController < ApplicationController
     end
     redirect_to plugins_path
   end
+
+  private
+
+  def plugins_json
+    JSON.pretty_generate(@plugins.map(&:to_hash))
+  end
 end

app/decorators/plugin_decorator.rb

@@ -10,4 +10,22 @@ class PluginDecorator < Draper::Decorator
       I18n.t("terms.not_installed")
     end
   end
+
+  def to_hash
+    {
+      is_installed: installed?,
+      is_processing: processing?,
+      uninstall_button: "#plugin-modal-#{gem_name}",
+      name: gem_name,
+      authors: authors,
+      summary: summary,
+      api_version: api_version,
+      category: category,
+      status: status,
+      installed_version: installed_version,
+      latest_version: latest_version,
+      is_latest_version: latest_version?,
+      rubygems_org_page: rubygems_org_page
+    }
+  end
 end