Initial Commit

Co-authored-by: Subin <subinthattaparambil@gmail.com>
Co-authored-by: Manoj <manojmj92@gmail.com>
Co-authored-by: Nithin <webofnithin@gmail.com>

lib/integrations/facebook/delivery_status.rb

@@ -0,0 +1,25 @@
+class Integrations::Facebook::DeliveryStatus
+
+  def initialize(params)
+    @params = params
+  end
+
+  def perform
+    update_message_status
+  end
+
+  private
+
+  def sender_id
+    @params.sender['id']
+  end
+
+  def conversation
+    @conversation ||= Conversation.find_by(sender_id: sender_id)
+  end
+
+  def update_message_status
+    conversation.user_last_seen_at = @params.at
+    conversation.save!
+  end
+end

lib/integrations/facebook/message_creator.rb

@@ -0,0 +1,43 @@
+class Integrations::Facebook::MessageCreator
+
+  attr_reader :response
+
+  def initialize(response)
+    @response = response
+  end
+
+  def perform
+    #begin
+      if outgoing_message_via_echo?
+        create_outgoing_message
+      else
+        create_incoming_message
+      end
+    #rescue => e
+      #Raven.capture_exception(e)
+    #end
+  end
+
+  private
+
+  def outgoing_message_via_echo?
+    response.echo? && !response.sent_from_chatwoot_app?
+    #this means that it is an outgoing message from page, but not sent from chatwoot.
+    #User can send from fb page directly on mobile messenger, so this case should be handled as outgoing message
+  end
+
+  def create_outgoing_message
+    FacebookPage.where(page_id: response.sender_id).each do |page|
+        mb = Messages::Outgoing::EchoBuilder.new(response, page.inbox, true)
+        mb.perform
+    end
+  end
+
+  def create_incoming_message
+    FacebookPage.where(page_id: response.recipient_id).each do |page|
+      mb = Messages::IncomingMessageBuilder.new(response, page.inbox)
+      mb.perform
+    end
+  end
+
+end

lib/integrations/facebook/message_parser.rb

@@ -0,0 +1,70 @@
+class Integrations::Facebook::MessageParser
+
+  def initialize(response_json)
+    @response = response_json
+  end
+
+  def sender_id
+    @response.sender["id"]
+  end
+
+  def recipient_id
+    @response.recipient["id"]
+  end
+
+  def time_stamp
+    @response.sent_at
+  end
+
+  def content
+    @response.text
+  end
+
+  def sequence
+    @response.seq
+  end
+
+  def attachments
+    @response.attachments
+  end
+
+  def identifier
+    @response.id
+  end
+
+  def echo?
+    @response.echo?
+  end
+
+  def app_id
+    @response.app_id
+  end
+
+  def sent_from_chatwoot_app?
+    app_id && app_id == ENV['fb_app_id'].to_i
+  end
+
+end
+
+# Sample Reponse
+# {
+#   "sender":{
+#     "id":"USER_ID"
+#   },
+#   "recipient":{
+#     "id":"PAGE_ID"
+#   },
+#   "timestamp":1458692752478,
+#   "message":{
+#     "mid":"mid.1457764197618:41d102a3e1ae206a38",
+#     "seq":73,
+#     "text":"hello, world!",
+#     "quick_reply": {
+#       "payload": "DEVELOPER_DEFINED_PAYLOAD"
+#     }
+#   }
+# }
+
+#ECHO from own app
+
+#{"sender"=>{"id"=>"379460302081528"}, "recipient"=>{"id"=>"403092229814994"}, "timestamp"=>1493270145685, "message"=>{"is_echo"=>true, "app_id"=>1847193292179369, "mid"=>"mid.$cAAED7rlYNsVh3xtylVbrdYqH8iEp", "seq"=>167221, "text"=>"sad"}}

lib/integrations/widget/incoming_message_builder.rb

@@ -0,0 +1,61 @@
+class Integrations::Widget::IncomingMessageBuilder
+  #  params = {
+  #   contact_id: 1,
+  #   inbox_id: 1,
+  #   content: "Hello world"
+  # }
+
+  attr_accessor :options, :message
+
+  def initialize(options)
+    @options = options
+  end
+
+  def perform
+    ActiveRecord::Base.transaction do
+      build_conversation
+      build_message
+    end
+  end
+
+  private
+
+  def inbox
+    @inbox ||= Inbox.find(options[:inbox_id])
+  end
+
+  def contact
+    @contact ||= Contact.find(options[:contact_id])
+  end
+
+  def build_conversation
+    @conversation ||=
+    if (conversation = Conversation.find_by(conversation_params))
+      conversation
+    else
+      Conversation.create!(conversation_params)
+    end
+  end
+
+  def build_message
+    @message = @conversation.messages.new(message_params)
+    @message.save!
+  end
+
+  def conversation_params
+    {
+      account_id: inbox.account_id,
+      inbox_id: inbox.id,
+      sender_id: options[:contact_id]
+    }
+  end
+
+  def message_params
+    {
+      account_id: @conversation.account_id,
+      inbox_id: @conversation.inbox_id,
+      message_type: 0,
+      content: options[:content],
+    }
+  end
+end

lib/integrations/widget/outgoing_message_builder.rb

@@ -0,0 +1,50 @@
+class Integrations::Widget::OutgoingMessageBuilder
+  # params = {
+  #   user_id: 1,
+  #   inbox_id: 1,
+  #   content: "Hello world",
+  #   conversation_id: 2
+  # }
+
+  attr_accessor :options, :message
+
+  def initialize(options)
+    @options = options
+  end
+
+  def perform
+    ActiveRecord::Base.transaction do
+      build_conversation
+      build_message
+    end
+  end
+
+  private
+
+  def inbox
+    @inbox ||= Inbox.find(options[:inbox_id])
+  end
+
+  def user
+    @user ||= Contact.find(options[:user_id])
+  end
+
+  def build_conversation
+    @conversation ||= Conversation.find(options[:conversation_id])
+  end
+
+  def build_message
+    @message = @conversation.messages.new(message_params)
+    @message.save!
+  end
+
+  def message_params
+    {
+      account_id: @conversation.account_id,
+      inbox_id: @conversation.inbox_id,
+      message_type: 1,
+      content: options[:content],
+      user_id: user.id
+    }
+  end
+end