Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/controllers/api/v1/widget/messages_controller.rb

@@ -0,0 +1,73 @@
+class Api::V1::Widget::MessagesController < Api::V1::Widget::BaseController
+  before_action :set_conversation, only: [:create]
+  before_action :set_message, only: [:update]
+
+  def index
+    @messages = conversation.nil? ? [] : message_finder.perform
+  end
+
+  def create
+    @message = conversation.messages.new(message_params)
+    build_attachment
+    @message.save!
+  end
+
+  def update
+    if @message.content_type == 'input_email'
+      @message.update!(submitted_email: contact_email)
+      ContactIdentifyAction.new(
+        contact: @contact,
+        params: { email: contact_email, name: contact_name },
+        retain_original_contact_name: true
+      ).perform
+    else
+      @message.update!(message_update_params[:message])
+    end
+  rescue StandardError => e
+    render json: { error: @contact.errors, message: e.message }.to_json, status: :internal_server_error
+  end
+
+  private
+
+  def build_attachment
+    return if params[:message][:attachments].blank?
+
+    params[:message][:attachments].each do |uploaded_attachment|
+      attachment = @message.attachments.new(
+        account_id: @message.account_id,
+        file: uploaded_attachment
+      )
+
+      attachment.file_type = helpers.file_type(uploaded_attachment&.content_type) if uploaded_attachment.is_a?(ActionDispatch::Http::UploadedFile)
+    end
+  end
+
+  def set_conversation
+    @conversation = create_conversation if conversation.nil?
+  end
+
+  def message_finder_params
+    {
+      filter_internal_messages: true,
+      before: permitted_params[:before],
+      after: permitted_params[:after]
+    }
+  end
+
+  def message_finder
+    @message_finder ||= MessageFinder.new(conversation, message_finder_params)
+  end
+
+  def message_update_params
+    params.permit(message: [{ submitted_values: [:name, :title, :value, { csat_survey_response: [:feedback_message, :rating] }] }])
+  end
+
+  def permitted_params
+    # timestamp parameter is used in create conversation method
+    params.permit(:id, :before, :after, :website_token, contact: [:name, :email], message: [:content, :referer_url, :timestamp, :echo_id, :reply_to])
+  end
+
+  def set_message
+    @message = @web_widget.inbox.messages.find(permitted_params[:id])
+  end
+end