Feature: Availability Statuses (#874)

Co-authored-by: Pranav Raj S <pranav@thoughtwoot.com>

app/channels/room_channel.rb

@@ -1,10 +1,42 @@
 class RoomChannel < ApplicationCable::Channel
   def subscribed
-    stream_from params[:pubsub_token]
-    ::OnlineStatusTracker.add_subscription(params[:pubsub_token])
+    ensure_stream
+    current_user
+    current_account
+    update_subscription
   end
 
-  def unsubscribed
-    ::OnlineStatusTracker.remove_subscription(params[:pubsub_token])
+  def update_presence
+    update_subscription
+    data = { account_id: @current_account.id, users: ::OnlineStatusTracker.get_available_users(@current_account.id) }
+    data[:contacts] = ::OnlineStatusTracker.get_available_contacts(@current_account.id) if @current_user.is_a? User
+    ActionCable.server.broadcast(@pubsub_token, { event: 'presence.update', data: data })
+  end
+
+  private
+
+  def ensure_stream
+    @pubsub_token = params[:pubsub_token]
+    stream_from @pubsub_token
+  end
+
+  def update_subscription
+    ::OnlineStatusTracker.update_presence(@current_account.id, @current_user.class.name, @current_user.id)
+  end
+
+  def current_user
+    @current_user ||= if params[:user_id].blank?
+                        Contact.find_by!(pubsub_token: @pubsub_token)
+                      else
+                        User.find_by!(pubsub_token: @pubsub_token, id: params[:user_id])
+                      end
+  end
+
+  def current_account
+    @current_account ||= if @current_user.is_a? Contact
+                           @current_user.account
+                         else
+                           @current_user.accounts.find(params[:account_id])
+                         end
   end
 end