Chore: Scope URLs with account_id (#601)

* Chore: Enable Users to create multiple accounts

Addresses: #402
- migrations to split roles and other attributes from users table
- make changes in code to accommodate this change

Co-authored-by: Pranav Raj Sreepuram <pranavrajs@gmail.com>

app/controllers/api/v1/accounts/facebook_indicators_controller.rb

@@ -0,0 +1,55 @@
+class Api::V1::Accounts::FacebookIndicatorsController < Api::BaseController
+  before_action :set_access_token
+  around_action :handle_with_exception
+
+  def mark_seen
+    fb_bot.deliver(payload('mark_seen'), access_token: @access_token)
+    head :ok
+  end
+
+  def typing_on
+    fb_bot.deliver(payload('typing_on'), access_token: @access_token)
+    head :ok
+  end
+
+  def typing_off
+    fb_bot.deliver(payload('typing_off'), access_token: @access_token)
+    head :ok
+  end
+
+  private
+
+  def fb_bot
+    ::Facebook::Messenger::Bot
+  end
+
+  def handle_with_exception
+    yield
+  rescue Facebook::Messenger::Error => e
+    Rails.logger.debug "Rescued: #{e.inspect}"
+    true
+  end
+
+  def payload(action)
+    {
+      recipient: { id: contact.source_id },
+      sender_action: action
+    }
+  end
+
+  def inbox
+    @inbox ||= current_account.inboxes.find(permitted_params[:inbox_id])
+  end
+
+  def set_access_token
+    @access_token = inbox.channel.page_access_token
+  end
+
+  def contact
+    @contact ||= inbox.contact_inboxes.find_by!(contact_id: permitted_params[:contact_id])
+  end
+
+  def permitted_params
+    params.permit(:inbox_id, :contact_id)
+  end
+end