module Shared::ConversationsHelper

  def private_conv_seen_status(conversation)
    # if the latest message of a conversation is not created by a current_user
    # and it is unseen, return an unseen-conv value
    not_created_by_user = conversation.messages.last.user_id != current_user.id
    unseen = conversation.messages.last.seen == false
    not_created_by_user && unseen ? 'unseen-conv' : ''
  end
end