Restructure omni services and add Chatwoot research snapshot

research/chatwoot/lib/integrations/facebook/delivery_status.rb

@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+class Integrations::Facebook::DeliveryStatus
+  pattr_initialize [:params!]
+
+  def perform
+    return if facebook_channel.blank?
+    return unless conversation
+
+    process_delivery_status if params.delivery_watermark
+    process_read_status if params.read_watermark
+  end
+
+  private
+
+  def process_delivery_status
+    timestamp = Time.zone.at(params.delivery_watermark.to_i).to_datetime.utc
+    ::Conversations::UpdateMessageStatusJob.perform_later(conversation.id, timestamp, :delivered)
+  end
+
+  def process_read_status
+    timestamp = Time.zone.at(params.read_watermark.to_i).to_datetime.utc
+    ::Conversations::UpdateMessageStatusJob.perform_later(conversation.id, timestamp, :read)
+  end
+
+  def contact
+    ::ContactInbox.find_by(source_id: params.sender_id)&.contact
+  end
+
+  def conversation
+    @conversation ||= ::Conversation.find_by(contact_id: contact.id) if contact.present?
+  end
+
+  def facebook_channel
+    @facebook_channel ||= Channel::FacebookPage.find_by(page_id: params.recipient_id)
+  end
+end

research/chatwoot/lib/integrations/facebook/message_creator.rb

@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+class Integrations::Facebook::MessageCreator
+  attr_reader :response
+
+  def initialize(response)
+    @response = response
+  end
+
+  def perform
+    # begin
+    if agent_message_via_echo?
+      create_agent_message
+    else
+      create_contact_message
+    end
+    # rescue => e
+    # ChatwootExceptionTracker.new(e).capture_exception
+    # end
+  end
+
+  private
+
+  def agent_message_via_echo?
+    # TODO : check and remove send_from_chatwoot_app if not working
+    response.echo? && !response.sent_from_chatwoot_app?
+    # this means that it is an agent message from page, but not sent from chatwoot.
+    # User can send from fb page directly on mobile / web messenger, so this case should be handled as agent message
+  end
+
+  def create_agent_message
+    Channel::FacebookPage.where(page_id: response.sender_id).each do |page|
+      mb = Messages::Facebook::MessageBuilder.new(response, page.inbox, outgoing_echo: true)
+      mb.perform
+    end
+  end
+
+  def create_contact_message
+    Channel::FacebookPage.where(page_id: response.recipient_id).each do |page|
+      mb = Messages::Facebook::MessageBuilder.new(response, page.inbox)
+      mb.perform
+    end
+  end
+end

research/chatwoot/lib/integrations/facebook/message_parser.rb

@@ -0,0 +1,89 @@
+# frozen_string_literal: true
+
+class Integrations::Facebook::MessageParser
+  def initialize(response_json)
+    @response = JSON.parse(response_json)
+    @messaging = @response['messaging'] || @response['standby']
+  end
+
+  def sender_id
+    @messaging.dig('sender', 'id')
+  end
+
+  def recipient_id
+    @messaging.dig('recipient', 'id')
+  end
+
+  def time_stamp
+    @messaging['timestamp']
+  end
+
+  def content
+    @messaging.dig('message', 'text')
+  end
+
+  def sequence
+    @messaging.dig('message', 'seq')
+  end
+
+  def attachments
+    @messaging.dig('message', 'attachments')
+  end
+
+  def identifier
+    @messaging.dig('message', 'mid')
+  end
+
+  def delivery
+    @messaging['delivery']
+  end
+
+  def read
+    @messaging['read']
+  end
+
+  def read_watermark
+    read&.dig('watermark')
+  end
+
+  def delivery_watermark
+    delivery&.dig('watermark')
+  end
+
+  def echo?
+    @messaging.dig('message', 'is_echo')
+  end
+
+  # TODO : i don't think the payload contains app_id. if not remove
+  def app_id
+    @messaging.dig('message', 'app_id')
+  end
+
+  # TODO : does this work ?
+  def sent_from_chatwoot_app?
+    app_id && app_id == GlobalConfigService.load('FB_APP_ID', '').to_i
+  end
+
+  def in_reply_to_external_id
+    @messaging.dig('message', 'reply_to', 'mid')
+  end
+end
+
+# Sample Response
+# {
+#   "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"
+#     }
+#   }
+# }