Create Hipchat integration

Gemfile

@@ -140,3 +140,6 @@ gem 'annotate', ">=2.6.0"
 gem 'kaminari', github: 'amatsuda/kaminari'
 
 gem 'jwt', '0.1.11'
+
+# Optional
+gem 'hipchat'

Gemfile.lock

@@ -162,9 +162,14 @@ GEM
       teaspoon (>= 0.8.0)
     hashie (3.2.0)
     hike (1.2.3)
+    hipchat (1.2.0)
+      httparty
     htmlentities (4.3.2)
     http-cookie (1.0.2)
       domain_name (~> 0.5)
+    httparty (0.13.1)
+      json (~> 1.8)
+      multi_xml (>= 0.5.2)
     i18n (0.6.11)
     i18n_generators (1.2.1)
       mechanize
@@ -423,6 +428,7 @@ DEPENDENCIES
   guard-rspec
   guard-rubocop
   guard-teaspoon
+  hipchat
   i18n_generators
   jbuilder
   jquery-rails

app/decorators/post_decorator.rb

 class PostDecorator < Draper::Decorator
   delegate_all
 
+  def show_url
+    h.post_url(model)
+  end
+
   def show_path
     h.post_path(model)
   end

app/models/concerns/hipchat_integration.rb

+module HipchatIntegration
+  # Call Hipchat API
+  def notify_hipchat!
+    client = HipChat::Client.new(Settings.hipchat.token)
+    client[Settings.hipchat.room].send('Rendezvous', notify_hipchat_body, message_format:'text', notify: 1)
+  end
+
+  # @return [String] notification body
+  def notify_hipchat_body
+    <<EOF
+#{author.name}が「#{title}」を投稿しました。
+#{self.decorate.show_url}
+--
+#{body}
+EOF
+  end
+end

app/models/post.rb

@@ -16,6 +16,8 @@
 require 'date'
 
 class Post < ActiveRecord::Base
+  include HipchatIntegration if Settings.respond_to?(:hipchat)
+
   ######################################################################
   # Associations
   ######################################################################
@@ -29,7 +31,7 @@ class Post < ActiveRecord::Base
   has_many :watchers, :through => :watches
 
   ######################################################################
-  # validations
+  # Validations
   ######################################################################
   validates :title, presence: true
   validates :body, presence: true
@@ -39,6 +41,7 @@ class Post < ActiveRecord::Base
   ######################################################################
   after_save :set_watcher!
   after_save :notify_watchers!
+  after_create :notify_hipchat! if Settings.respond_to?(:hipchat)
 
   ######################################################################
   # Named scope

config/settings.yml.example

@@ -19,6 +19,11 @@ defaults: &defaults
     secret_access_key: "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
     bucket_name: "xxxxxxxxxxxxxxxxxx"
 
+  # optional
+  # hipchat:
+  #   token: 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
+  #   room: 'xxxxxxxxxxx'
+
 development:
   <<: *defaults