class GdsApi::EmailAlertApi

def create_subscriber_list(attributes)
  post_json("#{endpoint}/subscriber-lists", attributes)
end

def find_or_create_subscriber_list(attributes)
  tags = attributes["tags"]
  links = attributes["links"]
  document_type = attributes["document_type"]
  email_document_supertype = attributes["email_document_supertype"]
  government_document_supertype = attributes["government_document_supertype"]
  gov_delivery_id = attributes["gov_delivery_id"]
  if tags && links
    message = "please provide either tags or links (or neither), but not both"
    raise ArgumentError, message
  end
  params = {}
  params[:tags] = tags if tags
  params[:links] = links if links
  params[:document_type] = document_type if document_type
  params[:email_document_supertype] = email_document_supertype if email_document_supertype
  params[:government_document_supertype] = government_document_supertype if government_document_supertype
  params[:gov_delivery_id] = gov_delivery_id if gov_delivery_id
  search_subscriber_list(params)
rescue GdsApi::HTTPNotFound
  create_subscriber_list(attributes)
end

def nested_query_string(params)
  Rack::Utils.build_nested_query(params)
end

def notification(id)
  get_json("#{endpoint}/notifications/#{id}")
end

def notifications(start_at = nil)
  url = "#{endpoint}/notifications"
  url += "?start_at=#{start_at}" if start_at
  get_json(url)
end

def search_subscriber_list(params)
  query_string = nested_query_string(params)
  get_json("#{endpoint}/subscriber-lists?" + query_string)
end

def send_alert(publication, headers = {})
  post_json("#{endpoint}/notifications", publication, headers)
end