add "diaspora to federation entity" methods for posts

lib/diaspora.rb

@@ -3,13 +3,14 @@
 #   the COPYRIGHT file.
 
 module Diaspora
-  require 'diaspora/camo'
-  require 'diaspora/exceptions'
-  require 'diaspora/exporter'
-  require 'diaspora/federated'
-  require 'diaspora/fetcher'
-  require 'diaspora/markdownify'
-  require 'diaspora/mentionable'
-  require 'diaspora/message_renderer'
-  require 'diaspora/parser'
+  require "diaspora/camo"
+  require "diaspora/exceptions"
+  require "diaspora/exporter"
+  require "diaspora/federated"
+  require "diaspora/federation"
+  require "diaspora/fetcher"
+  require "diaspora/markdownify"
+  require "diaspora/mentionable"
+  require "diaspora/message_renderer"
+  require "diaspora/parser"
 end

lib/diaspora/federation.rb

@@ -0,0 +1,78 @@
+module Diaspora
+  module Federation
+    def self.post(post)
+      case post
+      when StatusMessage
+        status_message(post)
+      when Reshare
+        reshare(post)
+      else
+        raise ArgumentError, "unknown post-class: #{post.class}"
+      end
+    end
+
+    def self.location(location)
+      DiasporaFederation::Entities::Location.new(
+        address: location.address,
+        lat:     location.lat,
+        lng:     location.lng
+      )
+    end
+
+    def self.photo(photo)
+      DiasporaFederation::Entities::Photo.new(
+        author:              photo.diaspora_handle,
+        guid:                photo.guid,
+        public:              photo.public,
+        created_at:          photo.created_at,
+        remote_photo_path:   photo.remote_photo_path,
+        remote_photo_name:   photo.remote_photo_name,
+        text:                photo.text,
+        status_message_guid: photo.status_message_guid,
+        height:              photo.height,
+        width:               photo.width
+      )
+    end
+
+    def self.poll(poll)
+      DiasporaFederation::Entities::Poll.new(
+        guid:         poll.guid,
+        question:     poll.question,
+        poll_answers: poll.poll_answers.map {|answer| poll_answer(answer) }
+      )
+    end
+
+    def self.poll_answer(poll_answer)
+      DiasporaFederation::Entities::PollAnswer.new(
+        guid:   poll_answer.guid,
+        answer: poll_answer.answer
+      )
+    end
+
+    def self.reshare(reshare)
+      DiasporaFederation::Entities::Reshare.new(
+        root_author:           reshare.root_diaspora_id,
+        root_guid:             reshare.root_guid,
+        author:                reshare.diaspora_handle,
+        guid:                  reshare.guid,
+        public:                reshare.public,
+        created_at:            reshare.created_at,
+        provider_display_name: reshare.provider_display_name
+      )
+    end
+
+    def self.status_message(status_message)
+      DiasporaFederation::Entities::StatusMessage.new(
+        author:                status_message.diaspora_handle,
+        guid:                  status_message.guid,
+        raw_message:           status_message.raw_message,
+        photos:                status_message.photos.map {|photo| photo(photo) },
+        location:              status_message.location ? location(status_message.location) : nil,
+        poll:                  status_message.poll ? poll(status_message.poll) : nil,
+        public:                status_message.public,
+        created_at:            status_message.created_at,
+        provider_display_name: status_message.provider_display_name
+      )
+    end
+  end
+end